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# Copyright (C) 2005-2011 Canonical Ltd
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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"""Testing framework extensions"""
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from __future__ import absolute_import
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# NOTE: Some classes in here use camelCaseNaming() rather than
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# underscore_naming(). That's for consistency with unittest; it's not the
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# general style of bzrlib. Please continue that consistency when adding e.g.
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# new assertFoo() methods.
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from cStringIO import StringIO
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# nb: check this before importing anything else from within it
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_testtools_version = getattr(testtools, '__version__', ())
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if _testtools_version < (0, 9, 5):
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raise ImportError("need at least testtools 0.9.5: %s is %r"
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% (testtools.__file__, _testtools_version))
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from testtools import content
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commands as _mod_commands,
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plugin as _mod_plugin,
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transport as _mod_transport,
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# lsprof not available
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from bzrlib.smart import client, request
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from bzrlib.transport import (
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from bzrlib.symbol_versioning import (
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from bzrlib.tests import (
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from bzrlib.ui import NullProgressView
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from bzrlib.ui.text import TextUIFactory
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from bzrlib.tests.features import _CompatabilityThunkFeature
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# Mark this python module as being part of the implementation
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# of unittest: this gives us better tracebacks where the last
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# shown frame is the test code, not our assertXYZ.
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default_transport = test_server.LocalURLServer
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_unitialized_attr = object()
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"""A sentinel needed to act as a default value in a method signature."""
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# Subunit result codes, defined here to prevent a hard dependency on subunit.
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# These are intentionally brought into this namespace. That way plugins, etc
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# can just "from bzrlib.tests import TestCase, TestLoader, etc"
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TestSuite = TestUtil.TestSuite
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TestLoader = TestUtil.TestLoader
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# Tests should run in a clean and clearly defined environment. The goal is to
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# keep them isolated from the running environment as mush as possible. The test
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# framework ensures the variables defined below are set (or deleted if the
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# value is None) before a test is run and reset to their original value after
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# the test is run. Generally if some code depends on an environment variable,
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# the tests should start without this variable in the environment. There are a
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# few exceptions but you shouldn't violate this rule lightly.
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'XDG_CONFIG_HOME': None,
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# bzr now uses the Win32 API and doesn't rely on APPDATA, but the
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# tests do check our impls match APPDATA
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'BZR_EDITOR': None, # test_msgeditor manipulates this variable
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'BZREMAIL': None, # may still be present in the environment
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'EMAIL': 'jrandom@example.com', # set EMAIL as bzr does not guess
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'BZR_PROGRESS_BAR': None,
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# This should trap leaks to ~/.bzr.log. This occurs when tests use TestCase
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# as a base class instead of TestCaseInTempDir. Tests inheriting from
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# TestCase should not use disk resources, BZR_LOG is one.
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'BZR_LOG': '/you-should-use-TestCaseInTempDir-if-you-need-a-log-file',
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'BZR_PLUGIN_PATH': None,
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'BZR_DISABLE_PLUGINS': None,
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'BZR_PLUGINS_AT': None,
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'BZR_CONCURRENCY': None,
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# Make sure that any text ui tests are consistent regardless of
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# the environment the test case is run in; you may want tests that
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# test other combinations. 'dumb' is a reasonable guess for tests
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# going to a pipe or a StringIO.
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'SSH_AUTH_SOCK': None,
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# Nobody cares about ftp_proxy, FTP_PROXY AFAIK. So far at
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# least. If you do (care), please update this comment
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'BZR_REMOTE_PATH': None,
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# Generally speaking, we don't want apport reporting on crashes in
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# the test envirnoment unless we're specifically testing apport,
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# so that it doesn't leak into the real system environment. We
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# use an env var so it propagates to subprocesses.
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'APPORT_DISABLE': '1',
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def override_os_environ(test, env=None):
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"""Modify os.environ keeping a copy.
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:param test: A test instance
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:param env: A dict containing variable definitions to be installed
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env = isolated_environ
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test._original_os_environ = dict([(var, value)
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for var, value in os.environ.iteritems()])
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for var, value in env.iteritems():
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osutils.set_or_unset_env(var, value)
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if var not in test._original_os_environ:
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# The var is new, add it with a value of None, so
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# restore_os_environ will delete it
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test._original_os_environ[var] = None
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def restore_os_environ(test):
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"""Restore os.environ to its original state.
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:param test: A test instance previously passed to override_os_environ.
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for var, value in test._original_os_environ.iteritems():
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# Restore the original value (or delete it if the value has been set to
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# None in override_os_environ).
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osutils.set_or_unset_env(var, value)
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def _clear__type_equality_funcs(test):
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"""Cleanup bound methods stored on TestCase instances
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Clear the dict breaking a few (mostly) harmless cycles in the affected
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unittests released with Python 2.6 and initial Python 2.7 versions.
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For a few revisions between Python 2.7.1 and Python 2.7.2 that annoyingly
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shipped in Oneiric, an object with no clear method was used, hence the
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extra complications, see bug 809048 for details.
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type_equality_funcs = getattr(test, "_type_equality_funcs", None)
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if type_equality_funcs is not None:
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tef_clear = getattr(type_equality_funcs, "clear", None)
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if tef_clear is None:
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tef_instance_dict = getattr(type_equality_funcs, "__dict__", None)
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if tef_instance_dict is not None:
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tef_clear = tef_instance_dict.clear
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if tef_clear is not None:
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class ExtendedTestResult(testtools.TextTestResult):
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"""Accepts, reports and accumulates the results of running tests.
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Compared to the unittest version this class adds support for
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profiling, benchmarking, stopping as soon as a test fails, and
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skipping tests. There are further-specialized subclasses for
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different types of display.
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When a test finishes, in whatever way, it calls one of the addSuccess,
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addFailure or addError methods. These in turn may redirect to a more
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specific case for the special test results supported by our extended
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Note that just one of these objects is fed the results from many tests.
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def __init__(self, stream, descriptions, verbosity,
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"""Construct new TestResult.
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:param bench_history: Optionally, a writable file object to accumulate
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testtools.TextTestResult.__init__(self, stream)
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if bench_history is not None:
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from bzrlib.version import _get_bzr_source_tree
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src_tree = _get_bzr_source_tree()
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revision_id = src_tree.get_parent_ids()[0]
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# XXX: if this is a brand new tree, do the same as if there
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# XXX: If there's no branch, what should we do?
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bench_history.write("--date %s %s\n" % (time.time(), revision_id))
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self._bench_history = bench_history
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self.ui = ui.ui_factory
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self.failure_count = 0
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self.known_failure_count = 0
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self.not_applicable_count = 0
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self.unsupported = {}
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self._overall_start_time = time.time()
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self._strict = strict
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self._first_thread_leaker_id = None
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self._tests_leaking_threads_count = 0
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self._traceback_from_test = None
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def stopTestRun(self):
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stopTime = time.time()
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timeTaken = stopTime - self.startTime
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# GZ 2010-07-19: Seems testtools has no printErrors method, and though
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# the parent class method is similar have to duplicate
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self._show_list('ERROR', self.errors)
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self._show_list('FAIL', self.failures)
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self.stream.write(self.sep2)
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self.stream.write("%s %d test%s in %.3fs\n\n" % (actionTaken,
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run, run != 1 and "s" or "", timeTaken))
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if not self.wasSuccessful():
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self.stream.write("FAILED (")
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failed, errored = map(len, (self.failures, self.errors))
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self.stream.write("failures=%d" % failed)
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if failed: self.stream.write(", ")
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self.stream.write("errors=%d" % errored)
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if self.known_failure_count:
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if failed or errored: self.stream.write(", ")
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self.stream.write("known_failure_count=%d" %
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self.known_failure_count)
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self.stream.write(")\n")
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if self.known_failure_count:
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self.stream.write("OK (known_failures=%d)\n" %
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self.known_failure_count)
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self.stream.write("OK\n")
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if self.skip_count > 0:
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skipped = self.skip_count
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self.stream.write('%d test%s skipped\n' %
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(skipped, skipped != 1 and "s" or ""))
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for feature, count in sorted(self.unsupported.items()):
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self.stream.write("Missing feature '%s' skipped %d tests.\n" %
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ok = self.wasStrictlySuccessful()
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ok = self.wasSuccessful()
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if self._first_thread_leaker_id:
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'%s is leaking threads among %d leaking tests.\n' % (
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self._first_thread_leaker_id,
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self._tests_leaking_threads_count))
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# We don't report the main thread as an active one.
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'%d non-main threads were left active in the end.\n'
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% (len(self._active_threads) - 1))
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def getDescription(self, test):
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def _extractBenchmarkTime(self, testCase, details=None):
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"""Add a benchmark time for the current test case."""
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if details and 'benchtime' in details:
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return float(''.join(details['benchtime'].iter_bytes()))
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return getattr(testCase, "_benchtime", None)
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def _elapsedTestTimeString(self):
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"""Return a time string for the overall time the current test has taken."""
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return self._formatTime(self._delta_to_float(
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self._now() - self._start_datetime))
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def _testTimeString(self, testCase):
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benchmark_time = self._extractBenchmarkTime(testCase)
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if benchmark_time is not None:
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return self._formatTime(benchmark_time) + "*"
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return self._elapsedTestTimeString()
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def _formatTime(self, seconds):
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"""Format seconds as milliseconds with leading spaces."""
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# some benchmarks can take thousands of seconds to run, so we need 8
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return "%8dms" % (1000 * seconds)
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def _shortened_test_description(self, test):
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what = re.sub(r'^bzrlib\.tests\.', '', what)
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# GZ 2010-10-04: Cloned tests may end up harmlessly calling this method
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# multiple times in a row, because the handler is added for
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# each test but the container list is shared between cases.
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# See lp:498869 lp:625574 and lp:637725 for background.
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def _record_traceback_from_test(self, exc_info):
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"""Store the traceback from passed exc_info tuple till"""
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self._traceback_from_test = exc_info[2]
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def startTest(self, test):
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super(ExtendedTestResult, self).startTest(test)
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self.report_test_start(test)
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test.number = self.count
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self._recordTestStartTime()
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# Make testtools cases give us the real traceback on failure
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addOnException = getattr(test, "addOnException", None)
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if addOnException is not None:
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addOnException(self._record_traceback_from_test)
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# Only check for thread leaks on bzrlib derived test cases
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if isinstance(test, TestCase):
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test.addCleanup(self._check_leaked_threads, test)
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def stopTest(self, test):
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super(ExtendedTestResult, self).stopTest(test)
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# Manually break cycles, means touching various private things but hey
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getDetails = getattr(test, "getDetails", None)
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if getDetails is not None:
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_clear__type_equality_funcs(test)
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self._traceback_from_test = None
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def startTests(self):
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self.report_tests_starting()
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self._active_threads = threading.enumerate()
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def _check_leaked_threads(self, test):
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"""See if any threads have leaked since last call
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A sample of live threads is stored in the _active_threads attribute,
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when this method runs it compares the current live threads and any not
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in the previous sample are treated as having leaked.
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now_active_threads = set(threading.enumerate())
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threads_leaked = now_active_threads.difference(self._active_threads)
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self._report_thread_leak(test, threads_leaked, now_active_threads)
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self._tests_leaking_threads_count += 1
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if self._first_thread_leaker_id is None:
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self._first_thread_leaker_id = test.id()
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self._active_threads = now_active_threads
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def _recordTestStartTime(self):
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"""Record that a test has started."""
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self._start_datetime = self._now()
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def addError(self, test, err):
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"""Tell result that test finished with an error.
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Called from the TestCase run() method when the test
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fails with an unexpected error.
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self._post_mortem(self._traceback_from_test)
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super(ExtendedTestResult, self).addError(test, err)
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self.error_count += 1
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self.report_error(test, err)
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def addFailure(self, test, err):
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"""Tell result that test failed.
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Called from the TestCase run() method when the test
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fails because e.g. an assert() method failed.
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self._post_mortem(self._traceback_from_test)
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super(ExtendedTestResult, self).addFailure(test, err)
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self.failure_count += 1
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self.report_failure(test, err)
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def addSuccess(self, test, details=None):
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"""Tell result that test completed successfully.
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Called from the TestCase run()
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if self._bench_history is not None:
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benchmark_time = self._extractBenchmarkTime(test, details)
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if benchmark_time is not None:
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self._bench_history.write("%s %s\n" % (
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self._formatTime(benchmark_time),
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self.report_success(test)
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super(ExtendedTestResult, self).addSuccess(test)
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test._log_contents = ''
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def addExpectedFailure(self, test, err):
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self.known_failure_count += 1
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self.report_known_failure(test, err)
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def addUnexpectedSuccess(self, test, details=None):
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"""Tell result the test unexpectedly passed, counting as a failure
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When the minimum version of testtools required becomes 0.9.8 this
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can be updated to use the new handling there.
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super(ExtendedTestResult, self).addFailure(test, details=details)
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self.failure_count += 1
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self.report_unexpected_success(test,
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"".join(details["reason"].iter_text()))
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def addNotSupported(self, test, feature):
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"""The test will not be run because of a missing feature.
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# this can be called in two different ways: it may be that the
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# test started running, and then raised (through requireFeature)
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# UnavailableFeature. Alternatively this method can be called
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# while probing for features before running the test code proper; in
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# that case we will see startTest and stopTest, but the test will
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# never actually run.
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self.unsupported.setdefault(str(feature), 0)
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self.unsupported[str(feature)] += 1
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self.report_unsupported(test, feature)
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def addSkip(self, test, reason):
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"""A test has not run for 'reason'."""
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self.report_skip(test, reason)
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def addNotApplicable(self, test, reason):
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self.not_applicable_count += 1
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self.report_not_applicable(test, reason)
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def _count_stored_tests(self):
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"""Count of tests instances kept alive due to not succeeding"""
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return self.error_count + self.failure_count + self.known_failure_count
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def _post_mortem(self, tb=None):
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"""Start a PDB post mortem session."""
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if os.environ.get('BZR_TEST_PDB', None):
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def progress(self, offset, whence):
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"""The test is adjusting the count of tests to run."""
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if whence == SUBUNIT_SEEK_SET:
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self.num_tests = offset
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elif whence == SUBUNIT_SEEK_CUR:
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self.num_tests += offset
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raise errors.BzrError("Unknown whence %r" % whence)
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def report_tests_starting(self):
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"""Display information before the test run begins"""
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if getattr(sys, 'frozen', None) is None:
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bzr_path = osutils.realpath(sys.argv[0])
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bzr_path = sys.executable
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'bzr selftest: %s\n' % (bzr_path,))
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bzrlib.__path__[0],))
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' bzr-%s python-%s %s\n' % (
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bzrlib.version_string,
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bzrlib._format_version_tuple(sys.version_info),
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platform.platform(aliased=1),
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self.stream.write('\n')
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def report_test_start(self, test):
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"""Display information on the test just about to be run"""
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def _report_thread_leak(self, test, leaked_threads, active_threads):
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"""Display information on a test that leaked one or more threads"""
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# GZ 2010-09-09: A leak summary reported separately from the general
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# thread debugging would be nice. Tests under subunit
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# need something not using stream, perhaps adding a
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# testtools details object would be fitting.
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if 'threads' in selftest_debug_flags:
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self.stream.write('%s is leaking, active is now %d\n' %
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(test.id(), len(active_threads)))
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def startTestRun(self):
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self.startTime = time.time()
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def report_success(self, test):
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def wasStrictlySuccessful(self):
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if self.unsupported or self.known_failure_count:
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return self.wasSuccessful()
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class TextTestResult(ExtendedTestResult):
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"""Displays progress and results of tests in text form"""
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def __init__(self, stream, descriptions, verbosity,
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ExtendedTestResult.__init__(self, stream, descriptions, verbosity,
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bench_history, strict)
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# We no longer pass them around, but just rely on the UIFactory stack
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warnings.warn("Passing pb to TextTestResult is deprecated")
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self.pb = self.ui.nested_progress_bar()
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self.pb.show_pct = False
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self.pb.show_spinner = False
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self.pb.show_eta = False,
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self.pb.show_count = False
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self.pb.show_bar = False
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self.pb.update_latency = 0
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self.pb.show_transport_activity = False
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def stopTestRun(self):
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# called when the tests that are going to run have run
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super(TextTestResult, self).stopTestRun()
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def report_tests_starting(self):
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super(TextTestResult, self).report_tests_starting()
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self.pb.update('[test 0/%d] Starting' % (self.num_tests))
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def _progress_prefix_text(self):
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# the longer this text, the less space we have to show the test
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a = '[%d' % self.count # total that have been run
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# tests skipped as known not to be relevant are not important enough
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## if self.skip_count:
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## a += ', %d skip' % self.skip_count
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## if self.known_failure_count:
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## a += '+%dX' % self.known_failure_count
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a +='/%d' % self.num_tests
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runtime = time.time() - self._overall_start_time
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a += '%dm%ds' % (runtime / 60, runtime % 60)
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total_fail_count = self.error_count + self.failure_count
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a += ', %d failed' % total_fail_count
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# if self.unsupported:
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# a += ', %d missing' % len(self.unsupported)
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def report_test_start(self, test):
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self._progress_prefix_text()
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+ self._shortened_test_description(test))
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def _test_description(self, test):
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return self._shortened_test_description(test)
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def report_error(self, test, err):
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self.stream.write('ERROR: %s\n %s\n' % (
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self._test_description(test),
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def report_failure(self, test, err):
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self.stream.write('FAIL: %s\n %s\n' % (
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self._test_description(test),
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def report_known_failure(self, test, err):
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def report_unexpected_success(self, test, reason):
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self.stream.write('FAIL: %s\n %s: %s\n' % (
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self._test_description(test),
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"Unexpected success. Should have failed",
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def report_skip(self, test, reason):
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def report_not_applicable(self, test, reason):
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def report_unsupported(self, test, feature):
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"""test cannot be run because feature is missing."""
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class VerboseTestResult(ExtendedTestResult):
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"""Produce long output, with one line per test run plus times"""
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def _ellipsize_to_right(self, a_string, final_width):
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"""Truncate and pad a string, keeping the right hand side"""
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if len(a_string) > final_width:
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result = '...' + a_string[3-final_width:]
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return result.ljust(final_width)
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def report_tests_starting(self):
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self.stream.write('running %d tests...\n' % self.num_tests)
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super(VerboseTestResult, self).report_tests_starting()
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def report_test_start(self, test):
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name = self._shortened_test_description(test)
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width = osutils.terminal_width()
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if width is not None:
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# width needs space for 6 char status, plus 1 for slash, plus an
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# 11-char time string, plus a trailing blank
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# when NUMBERED_DIRS: plus 5 chars on test number, plus 1 char on
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self.stream.write(self._ellipsize_to_right(name, width-18))
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self.stream.write(name)
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def _error_summary(self, err):
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return '%s%s' % (indent, err[1])
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def report_error(self, test, err):
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self.stream.write('ERROR %s\n%s\n'
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% (self._testTimeString(test),
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self._error_summary(err)))
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def report_failure(self, test, err):
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self.stream.write(' FAIL %s\n%s\n'
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% (self._testTimeString(test),
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self._error_summary(err)))
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def report_known_failure(self, test, err):
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self.stream.write('XFAIL %s\n%s\n'
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% (self._testTimeString(test),
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self._error_summary(err)))
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def report_unexpected_success(self, test, reason):
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self.stream.write(' FAIL %s\n%s: %s\n'
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% (self._testTimeString(test),
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"Unexpected success. Should have failed",
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def report_success(self, test):
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self.stream.write(' OK %s\n' % self._testTimeString(test))
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for bench_called, stats in getattr(test, '_benchcalls', []):
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self.stream.write('LSProf output for %s(%s, %s)\n' % bench_called)
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stats.pprint(file=self.stream)
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# flush the stream so that we get smooth output. This verbose mode is
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# used to show the output in PQM.
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def report_skip(self, test, reason):
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self.stream.write(' SKIP %s\n%s\n'
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% (self._testTimeString(test), reason))
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def report_not_applicable(self, test, reason):
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self.stream.write(' N/A %s\n %s\n'
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% (self._testTimeString(test), reason))
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def report_unsupported(self, test, feature):
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"""test cannot be run because feature is missing."""
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self.stream.write("NODEP %s\n The feature '%s' is not available.\n"
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%(self._testTimeString(test), feature))
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class TextTestRunner(object):
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stop_on_failure = False
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result_decorators=None,
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"""Create a TextTestRunner.
774
:param result_decorators: An optional list of decorators to apply
775
to the result object being used by the runner. Decorators are
776
applied left to right - the first element in the list is the
779
# stream may know claim to know to write unicode strings, but in older
780
# pythons this goes sufficiently wrong that it is a bad idea. (
781
# specifically a built in file with encoding 'UTF-8' will still try
782
# to encode using ascii.
783
new_encoding = osutils.get_terminal_encoding()
784
codec = codecs.lookup(new_encoding)
785
if type(codec) is tuple:
789
encode = codec.encode
790
# GZ 2010-09-08: Really we don't want to be writing arbitrary bytes,
791
# so should swap to the plain codecs.StreamWriter
792
stream = osutils.UnicodeOrBytesToBytesWriter(encode, stream,
794
stream.encoding = new_encoding
796
self.descriptions = descriptions
797
self.verbosity = verbosity
798
self._bench_history = bench_history
799
self._strict = strict
800
self._result_decorators = result_decorators or []
803
"Run the given test case or test suite."
804
if self.verbosity == 1:
805
result_class = TextTestResult
806
elif self.verbosity >= 2:
807
result_class = VerboseTestResult
808
original_result = result_class(self.stream,
811
bench_history=self._bench_history,
814
# Signal to result objects that look at stop early policy to stop,
815
original_result.stop_early = self.stop_on_failure
816
result = original_result
817
for decorator in self._result_decorators:
818
result = decorator(result)
819
result.stop_early = self.stop_on_failure
820
result.startTestRun()
825
# higher level code uses our extended protocol to determine
826
# what exit code to give.
827
return original_result
830
def iter_suite_tests(suite):
831
"""Return all tests in a suite, recursing through nested suites"""
832
if isinstance(suite, unittest.TestCase):
834
elif isinstance(suite, unittest.TestSuite):
836
for r in iter_suite_tests(item):
839
raise Exception('unknown type %r for object %r'
840
% (type(suite), suite))
843
TestSkipped = testtools.testcase.TestSkipped
846
class TestNotApplicable(TestSkipped):
847
"""A test is not applicable to the situation where it was run.
849
This is only normally raised by parameterized tests, if they find that
850
the instance they're constructed upon does not support one aspect
855
# traceback._some_str fails to format exceptions that have the default
856
# __str__ which does an implicit ascii conversion. However, repr() on those
857
# objects works, for all that its not quite what the doctor may have ordered.
858
def _clever_some_str(value):
863
return repr(value).replace('\\n', '\n')
865
return '<unprintable %s object>' % type(value).__name__
867
traceback._some_str = _clever_some_str
870
# deprecated - use self.knownFailure(), or self.expectFailure.
871
KnownFailure = testtools.testcase._ExpectedFailure
874
class UnavailableFeature(Exception):
875
"""A feature required for this test was not available.
877
This can be considered a specialised form of SkippedTest.
879
The feature should be used to construct the exception.
883
class StringIOWrapper(object):
884
"""A wrapper around cStringIO which just adds an encoding attribute.
886
Internally we can check sys.stdout to see what the output encoding
887
should be. However, cStringIO has no encoding attribute that we can
888
set. So we wrap it instead.
893
def __init__(self, s=None):
895
self.__dict__['_cstring'] = StringIO(s)
897
self.__dict__['_cstring'] = StringIO()
899
def __getattr__(self, name, getattr=getattr):
900
return getattr(self.__dict__['_cstring'], name)
902
def __setattr__(self, name, val):
903
if name == 'encoding':
904
self.__dict__['encoding'] = val
906
return setattr(self._cstring, name, val)
909
class TestUIFactory(TextUIFactory):
910
"""A UI Factory for testing.
912
Hide the progress bar but emit note()s.
914
Allows get_password to be tested without real tty attached.
916
See also CannedInputUIFactory which lets you provide programmatic input in
919
# TODO: Capture progress events at the model level and allow them to be
920
# observed by tests that care.
922
# XXX: Should probably unify more with CannedInputUIFactory or a
923
# particular configuration of TextUIFactory, or otherwise have a clearer
924
# idea of how they're supposed to be different.
925
# See https://bugs.launchpad.net/bzr/+bug/408213
927
def __init__(self, stdout=None, stderr=None, stdin=None):
928
if stdin is not None:
929
# We use a StringIOWrapper to be able to test various
930
# encodings, but the user is still responsible to
931
# encode the string and to set the encoding attribute
932
# of StringIOWrapper.
933
stdin = StringIOWrapper(stdin)
934
super(TestUIFactory, self).__init__(stdin, stdout, stderr)
936
def get_non_echoed_password(self):
937
"""Get password from stdin without trying to handle the echo mode"""
938
password = self.stdin.readline()
941
if password[-1] == '\n':
942
password = password[:-1]
945
def make_progress_view(self):
946
return NullProgressView()
949
def isolated_doctest_setUp(test):
950
override_os_environ(test)
953
def isolated_doctest_tearDown(test):
954
restore_os_environ(test)
957
def IsolatedDocTestSuite(*args, **kwargs):
958
"""Overrides doctest.DocTestSuite to handle isolation.
960
The method is really a factory and users are expected to use it as such.
963
kwargs['setUp'] = isolated_doctest_setUp
964
kwargs['tearDown'] = isolated_doctest_tearDown
965
return doctest.DocTestSuite(*args, **kwargs)
968
class TestCase(testtools.TestCase):
969
"""Base class for bzr unit tests.
971
Tests that need access to disk resources should subclass
972
TestCaseInTempDir not TestCase.
974
Error and debug log messages are redirected from their usual
975
location into a temporary file, the contents of which can be
976
retrieved by _get_log(). We use a real OS file, not an in-memory object,
977
so that it can also capture file IO. When the test completes this file
978
is read into memory and removed from disk.
980
There are also convenience functions to invoke bzr's command-line
981
routine, and to build and check bzr trees.
983
In addition to the usual method of overriding tearDown(), this class also
984
allows subclasses to register cleanup functions via addCleanup, which are
985
run in order as the object is torn down. It's less likely this will be
986
accidentally overlooked.
990
# record lsprof data when performing benchmark calls.
991
_gather_lsprof_in_benchmarks = False
993
def __init__(self, methodName='testMethod'):
994
super(TestCase, self).__init__(methodName)
995
self._directory_isolation = True
996
self.exception_handlers.insert(0,
997
(UnavailableFeature, self._do_unsupported_or_skip))
998
self.exception_handlers.insert(0,
999
(TestNotApplicable, self._do_not_applicable))
1002
super(TestCase, self).setUp()
1004
timeout = config.GlobalStack().get('selftest.timeout')
1006
timeout_fixture = fixtures.TimeoutFixture(timeout)
1007
timeout_fixture.setUp()
1008
self.addCleanup(timeout_fixture.cleanUp)
1010
for feature in getattr(self, '_test_needs_features', []):
1011
self.requireFeature(feature)
1012
self._cleanEnvironment()
1014
if bzrlib.global_state is not None:
1015
self.overrideAttr(bzrlib.global_state, 'cmdline_overrides',
1016
config.CommandLineStore())
1019
self._startLogFile()
1020
self._benchcalls = []
1021
self._benchtime = None
1023
self._track_transports()
1025
self._clear_debug_flags()
1026
# Isolate global verbosity level, to make sure it's reproducible
1027
# between tests. We should get rid of this altogether: bug 656694. --
1029
self.overrideAttr(bzrlib.trace, '_verbosity_level', 0)
1030
self._log_files = set()
1031
# Each key in the ``_counters`` dict holds a value for a different
1032
# counter. When the test ends, addDetail() should be used to output the
1033
# counter values. This happens in install_counter_hook().
1035
if 'config_stats' in selftest_debug_flags:
1036
self._install_config_stats_hooks()
1037
# Do not use i18n for tests (unless the test reverses this)
1043
# The sys preserved stdin/stdout should allow blackbox tests debugging
1044
pdb.Pdb(stdin=sys.__stdin__, stdout=sys.__stdout__
1045
).set_trace(sys._getframe().f_back)
1047
def discardDetail(self, name):
1048
"""Extend the addDetail, getDetails api so we can remove a detail.
1050
eg. bzr always adds the 'log' detail at startup, but we don't want to
1051
include it for skipped, xfail, etc tests.
1053
It is safe to call this for a detail that doesn't exist, in case this
1054
gets called multiple times.
1056
# We cheat. details is stored in __details which means we shouldn't
1057
# touch it. but getDetails() returns the dict directly, so we can
1059
details = self.getDetails()
1063
def install_counter_hook(self, hooks, name, counter_name=None):
1064
"""Install a counting hook.
1066
Any hook can be counted as long as it doesn't need to return a value.
1068
:param hooks: Where the hook should be installed.
1070
:param name: The hook name that will be counted.
1072
:param counter_name: The counter identifier in ``_counters``, defaults
1075
_counters = self._counters # Avoid closing over self
1076
if counter_name is None:
1078
if _counters.has_key(counter_name):
1079
raise AssertionError('%s is already used as a counter name'
1081
_counters[counter_name] = 0
1082
self.addDetail(counter_name, content.Content(content.UTF8_TEXT,
1083
lambda: ['%d' % (_counters[counter_name],)]))
1084
def increment_counter(*args, **kwargs):
1085
_counters[counter_name] += 1
1086
label = 'count %s calls' % (counter_name,)
1087
hooks.install_named_hook(name, increment_counter, label)
1088
self.addCleanup(hooks.uninstall_named_hook, name, label)
1090
def _install_config_stats_hooks(self):
1091
"""Install config hooks to count hook calls.
1094
for hook_name in ('get', 'set', 'remove', 'load', 'save'):
1095
self.install_counter_hook(config.ConfigHooks, hook_name,
1096
'config.%s' % (hook_name,))
1098
# The OldConfigHooks are private and need special handling to protect
1099
# against recursive tests (tests that run other tests), so we just do
1100
# manually what registering them into _builtin_known_hooks will provide
1102
self.overrideAttr(config, 'OldConfigHooks', config._OldConfigHooks())
1103
for hook_name in ('get', 'set', 'remove', 'load', 'save'):
1104
self.install_counter_hook(config.OldConfigHooks, hook_name,
1105
'old_config.%s' % (hook_name,))
1107
def _clear_debug_flags(self):
1108
"""Prevent externally set debug flags affecting tests.
1110
Tests that want to use debug flags can just set them in the
1111
debug_flags set during setup/teardown.
1113
# Start with a copy of the current debug flags we can safely modify.
1114
self.overrideAttr(debug, 'debug_flags', set(debug.debug_flags))
1115
if 'allow_debug' not in selftest_debug_flags:
1116
debug.debug_flags.clear()
1117
if 'disable_lock_checks' not in selftest_debug_flags:
1118
debug.debug_flags.add('strict_locks')
1120
def _clear_hooks(self):
1121
# prevent hooks affecting tests
1122
known_hooks = hooks.known_hooks
1123
self._preserved_hooks = {}
1124
for key, (parent, name) in known_hooks.iter_parent_objects():
1125
current_hooks = getattr(parent, name)
1126
self._preserved_hooks[parent] = (name, current_hooks)
1127
self._preserved_lazy_hooks = hooks._lazy_hooks
1128
hooks._lazy_hooks = {}
1129
self.addCleanup(self._restoreHooks)
1130
for key, (parent, name) in known_hooks.iter_parent_objects():
1131
factory = known_hooks.get(key)
1132
setattr(parent, name, factory())
1133
# this hook should always be installed
1134
request._install_hook()
1136
def disable_directory_isolation(self):
1137
"""Turn off directory isolation checks."""
1138
self._directory_isolation = False
1140
def enable_directory_isolation(self):
1141
"""Enable directory isolation checks."""
1142
self._directory_isolation = True
1144
def _silenceUI(self):
1145
"""Turn off UI for duration of test"""
1146
# by default the UI is off; tests can turn it on if they want it.
1147
self.overrideAttr(ui, 'ui_factory', ui.SilentUIFactory())
1149
def _check_locks(self):
1150
"""Check that all lock take/release actions have been paired."""
1151
# We always check for mismatched locks. If a mismatch is found, we
1152
# fail unless -Edisable_lock_checks is supplied to selftest, in which
1153
# case we just print a warning.
1155
acquired_locks = [lock for action, lock in self._lock_actions
1156
if action == 'acquired']
1157
released_locks = [lock for action, lock in self._lock_actions
1158
if action == 'released']
1159
broken_locks = [lock for action, lock in self._lock_actions
1160
if action == 'broken']
1161
# trivially, given the tests for lock acquistion and release, if we
1162
# have as many in each list, it should be ok. Some lock tests also
1163
# break some locks on purpose and should be taken into account by
1164
# considering that breaking a lock is just a dirty way of releasing it.
1165
if len(acquired_locks) != (len(released_locks) + len(broken_locks)):
1167
'Different number of acquired and '
1168
'released or broken locks.\n'
1172
(acquired_locks, released_locks, broken_locks))
1173
if not self._lock_check_thorough:
1174
# Rather than fail, just warn
1175
print "Broken test %s: %s" % (self, message)
1179
def _track_locks(self):
1180
"""Track lock activity during tests."""
1181
self._lock_actions = []
1182
if 'disable_lock_checks' in selftest_debug_flags:
1183
self._lock_check_thorough = False
1185
self._lock_check_thorough = True
1187
self.addCleanup(self._check_locks)
1188
_mod_lock.Lock.hooks.install_named_hook('lock_acquired',
1189
self._lock_acquired, None)
1190
_mod_lock.Lock.hooks.install_named_hook('lock_released',
1191
self._lock_released, None)
1192
_mod_lock.Lock.hooks.install_named_hook('lock_broken',
1193
self._lock_broken, None)
1195
def _lock_acquired(self, result):
1196
self._lock_actions.append(('acquired', result))
1198
def _lock_released(self, result):
1199
self._lock_actions.append(('released', result))
1201
def _lock_broken(self, result):
1202
self._lock_actions.append(('broken', result))
1204
def permit_dir(self, name):
1205
"""Permit a directory to be used by this test. See permit_url."""
1206
name_transport = _mod_transport.get_transport_from_path(name)
1207
self.permit_url(name)
1208
self.permit_url(name_transport.base)
1210
def permit_url(self, url):
1211
"""Declare that url is an ok url to use in this test.
1213
Do this for memory transports, temporary test directory etc.
1215
Do not do this for the current working directory, /tmp, or any other
1216
preexisting non isolated url.
1218
if not url.endswith('/'):
1220
self._bzr_selftest_roots.append(url)
1222
def permit_source_tree_branch_repo(self):
1223
"""Permit the source tree bzr is running from to be opened.
1225
Some code such as bzrlib.version attempts to read from the bzr branch
1226
that bzr is executing from (if any). This method permits that directory
1227
to be used in the test suite.
1229
path = self.get_source_path()
1230
self.record_directory_isolation()
1233
workingtree.WorkingTree.open(path)
1234
except (errors.NotBranchError, errors.NoWorkingTree):
1235
raise TestSkipped('Needs a working tree of bzr sources')
1237
self.enable_directory_isolation()
1239
def _preopen_isolate_transport(self, transport):
1240
"""Check that all transport openings are done in the test work area."""
1241
while isinstance(transport, pathfilter.PathFilteringTransport):
1242
# Unwrap pathfiltered transports
1243
transport = transport.server.backing_transport.clone(
1244
transport._filter('.'))
1245
url = transport.base
1246
# ReadonlySmartTCPServer_for_testing decorates the backing transport
1247
# urls it is given by prepending readonly+. This is appropriate as the
1248
# client shouldn't know that the server is readonly (or not readonly).
1249
# We could register all servers twice, with readonly+ prepending, but
1250
# that makes for a long list; this is about the same but easier to
1252
if url.startswith('readonly+'):
1253
url = url[len('readonly+'):]
1254
self._preopen_isolate_url(url)
1256
def _preopen_isolate_url(self, url):
1257
if not self._directory_isolation:
1259
if self._directory_isolation == 'record':
1260
self._bzr_selftest_roots.append(url)
1262
# This prevents all transports, including e.g. sftp ones backed on disk
1263
# from working unless they are explicitly granted permission. We then
1264
# depend on the code that sets up test transports to check that they are
1265
# appropriately isolated and enable their use by calling
1266
# self.permit_transport()
1267
if not osutils.is_inside_any(self._bzr_selftest_roots, url):
1268
raise errors.BzrError("Attempt to escape test isolation: %r %r"
1269
% (url, self._bzr_selftest_roots))
1271
def record_directory_isolation(self):
1272
"""Gather accessed directories to permit later access.
1274
This is used for tests that access the branch bzr is running from.
1276
self._directory_isolation = "record"
1278
def start_server(self, transport_server, backing_server=None):
1279
"""Start transport_server for this test.
1281
This starts the server, registers a cleanup for it and permits the
1282
server's urls to be used.
1284
if backing_server is None:
1285
transport_server.start_server()
1287
transport_server.start_server(backing_server)
1288
self.addCleanup(transport_server.stop_server)
1289
# Obtain a real transport because if the server supplies a password, it
1290
# will be hidden from the base on the client side.
1291
t = _mod_transport.get_transport_from_url(transport_server.get_url())
1292
# Some transport servers effectively chroot the backing transport;
1293
# others like SFTPServer don't - users of the transport can walk up the
1294
# transport to read the entire backing transport. This wouldn't matter
1295
# except that the workdir tests are given - and that they expect the
1296
# server's url to point at - is one directory under the safety net. So
1297
# Branch operations into the transport will attempt to walk up one
1298
# directory. Chrooting all servers would avoid this but also mean that
1299
# we wouldn't be testing directly against non-root urls. Alternatively
1300
# getting the test framework to start the server with a backing server
1301
# at the actual safety net directory would work too, but this then
1302
# means that the self.get_url/self.get_transport methods would need
1303
# to transform all their results. On balance its cleaner to handle it
1304
# here, and permit a higher url when we have one of these transports.
1305
if t.base.endswith('/work/'):
1306
# we have safety net/test root/work
1307
t = t.clone('../..')
1308
elif isinstance(transport_server,
1309
test_server.SmartTCPServer_for_testing):
1310
# The smart server adds a path similar to work, which is traversed
1311
# up from by the client. But the server is chrooted - the actual
1312
# backing transport is not escaped from, and VFS requests to the
1313
# root will error (because they try to escape the chroot).
1315
while t2.base != t.base:
1318
self.permit_url(t.base)
1320
def _track_transports(self):
1321
"""Install checks for transport usage."""
1322
# TestCase has no safe place it can write to.
1323
self._bzr_selftest_roots = []
1324
# Currently the easiest way to be sure that nothing is going on is to
1325
# hook into bzr dir opening. This leaves a small window of error for
1326
# transport tests, but they are well known, and we can improve on this
1328
controldir.ControlDir.hooks.install_named_hook("pre_open",
1329
self._preopen_isolate_transport, "Check bzr directories are safe.")
1331
def _ndiff_strings(self, a, b):
1332
"""Return ndiff between two strings containing lines.
1334
A trailing newline is added if missing to make the strings
1336
if b and b[-1] != '\n':
1338
if a and a[-1] != '\n':
1340
difflines = difflib.ndiff(a.splitlines(True),
1342
linejunk=lambda x: False,
1343
charjunk=lambda x: False)
1344
return ''.join(difflines)
1346
def assertEqual(self, a, b, message=''):
1350
except UnicodeError, e:
1351
# If we can't compare without getting a UnicodeError, then
1352
# obviously they are different
1353
trace.mutter('UnicodeError: %s', e)
1356
raise AssertionError("%snot equal:\na = %s\nb = %s\n"
1358
pprint.pformat(a), pprint.pformat(b)))
1360
assertEquals = assertEqual
1362
def assertEqualDiff(self, a, b, message=None):
1363
"""Assert two texts are equal, if not raise an exception.
1365
This is intended for use with multi-line strings where it can
1366
be hard to find the differences by eye.
1368
# TODO: perhaps override assertEquals to call this for strings?
1372
message = "texts not equal:\n"
1374
message = 'first string is missing a final newline.\n'
1376
message = 'second string is missing a final newline.\n'
1377
raise AssertionError(message +
1378
self._ndiff_strings(a, b))
1380
def assertEqualMode(self, mode, mode_test):
1381
self.assertEqual(mode, mode_test,
1382
'mode mismatch %o != %o' % (mode, mode_test))
1384
def assertEqualStat(self, expected, actual):
1385
"""assert that expected and actual are the same stat result.
1387
:param expected: A stat result.
1388
:param actual: A stat result.
1389
:raises AssertionError: If the expected and actual stat values differ
1390
other than by atime.
1392
self.assertEqual(expected.st_size, actual.st_size,
1393
'st_size did not match')
1394
self.assertEqual(expected.st_mtime, actual.st_mtime,
1395
'st_mtime did not match')
1396
self.assertEqual(expected.st_ctime, actual.st_ctime,
1397
'st_ctime did not match')
1398
if sys.platform == 'win32':
1399
# On Win32 both 'dev' and 'ino' cannot be trusted. In python2.4 it
1400
# is 'dev' that varies, in python 2.5 (6?) it is st_ino that is
1401
# odd. We just force it to always be 0 to avoid any problems.
1402
self.assertEqual(0, expected.st_dev)
1403
self.assertEqual(0, actual.st_dev)
1404
self.assertEqual(0, expected.st_ino)
1405
self.assertEqual(0, actual.st_ino)
1407
self.assertEqual(expected.st_dev, actual.st_dev,
1408
'st_dev did not match')
1409
self.assertEqual(expected.st_ino, actual.st_ino,
1410
'st_ino did not match')
1411
self.assertEqual(expected.st_mode, actual.st_mode,
1412
'st_mode did not match')
1414
def assertLength(self, length, obj_with_len):
1415
"""Assert that obj_with_len is of length length."""
1416
if len(obj_with_len) != length:
1417
self.fail("Incorrect length: wanted %d, got %d for %r" % (
1418
length, len(obj_with_len), obj_with_len))
1420
def assertLogsError(self, exception_class, func, *args, **kwargs):
1421
"""Assert that `func(*args, **kwargs)` quietly logs a specific error.
1424
orig_log_exception_quietly = trace.log_exception_quietly
1427
orig_log_exception_quietly()
1428
captured.append(sys.exc_info()[1])
1429
trace.log_exception_quietly = capture
1430
func(*args, **kwargs)
1432
trace.log_exception_quietly = orig_log_exception_quietly
1433
self.assertLength(1, captured)
1435
self.assertIsInstance(err, exception_class)
1438
def assertPositive(self, val):
1439
"""Assert that val is greater than 0."""
1440
self.assertTrue(val > 0, 'expected a positive value, but got %s' % val)
1442
def assertNegative(self, val):
1443
"""Assert that val is less than 0."""
1444
self.assertTrue(val < 0, 'expected a negative value, but got %s' % val)
1446
def assertStartsWith(self, s, prefix):
1447
if not s.startswith(prefix):
1448
raise AssertionError('string %r does not start with %r' % (s, prefix))
1450
def assertEndsWith(self, s, suffix):
1451
"""Asserts that s ends with suffix."""
1452
if not s.endswith(suffix):
1453
raise AssertionError('string %r does not end with %r' % (s, suffix))
1455
def assertContainsRe(self, haystack, needle_re, flags=0):
1456
"""Assert that a contains something matching a regular expression."""
1457
if not re.search(needle_re, haystack, flags):
1458
if '\n' in haystack or len(haystack) > 60:
1459
# a long string, format it in a more readable way
1460
raise AssertionError(
1461
'pattern "%s" not found in\n"""\\\n%s"""\n'
1462
% (needle_re, haystack))
1464
raise AssertionError('pattern "%s" not found in "%s"'
1465
% (needle_re, haystack))
1467
def assertNotContainsRe(self, haystack, needle_re, flags=0):
1468
"""Assert that a does not match a regular expression"""
1469
if re.search(needle_re, haystack, flags):
1470
raise AssertionError('pattern "%s" found in "%s"'
1471
% (needle_re, haystack))
1473
def assertContainsString(self, haystack, needle):
1474
if haystack.find(needle) == -1:
1475
self.fail("string %r not found in '''%s'''" % (needle, haystack))
1477
def assertNotContainsString(self, haystack, needle):
1478
if haystack.find(needle) != -1:
1479
self.fail("string %r found in '''%s'''" % (needle, haystack))
1481
def assertSubset(self, sublist, superlist):
1482
"""Assert that every entry in sublist is present in superlist."""
1483
missing = set(sublist) - set(superlist)
1484
if len(missing) > 0:
1485
raise AssertionError("value(s) %r not present in container %r" %
1486
(missing, superlist))
1488
def assertListRaises(self, excClass, func, *args, **kwargs):
1489
"""Fail unless excClass is raised when the iterator from func is used.
1491
Many functions can return generators this makes sure
1492
to wrap them in a list() call to make sure the whole generator
1493
is run, and that the proper exception is raised.
1496
list(func(*args, **kwargs))
1500
if getattr(excClass,'__name__', None) is not None:
1501
excName = excClass.__name__
1503
excName = str(excClass)
1504
raise self.failureException, "%s not raised" % excName
1506
def assertRaises(self, excClass, callableObj, *args, **kwargs):
1507
"""Assert that a callable raises a particular exception.
1509
:param excClass: As for the except statement, this may be either an
1510
exception class, or a tuple of classes.
1511
:param callableObj: A callable, will be passed ``*args`` and
1514
Returns the exception so that you can examine it.
1517
callableObj(*args, **kwargs)
1521
if getattr(excClass,'__name__', None) is not None:
1522
excName = excClass.__name__
1525
excName = str(excClass)
1526
raise self.failureException, "%s not raised" % excName
1528
def assertIs(self, left, right, message=None):
1529
if not (left is right):
1530
if message is not None:
1531
raise AssertionError(message)
1533
raise AssertionError("%r is not %r." % (left, right))
1535
def assertIsNot(self, left, right, message=None):
1537
if message is not None:
1538
raise AssertionError(message)
1540
raise AssertionError("%r is %r." % (left, right))
1542
def assertTransportMode(self, transport, path, mode):
1543
"""Fail if a path does not have mode "mode".
1545
If modes are not supported on this transport, the assertion is ignored.
1547
if not transport._can_roundtrip_unix_modebits():
1549
path_stat = transport.stat(path)
1550
actual_mode = stat.S_IMODE(path_stat.st_mode)
1551
self.assertEqual(mode, actual_mode,
1552
'mode of %r incorrect (%s != %s)'
1553
% (path, oct(mode), oct(actual_mode)))
1555
def assertIsSameRealPath(self, path1, path2):
1556
"""Fail if path1 and path2 points to different files"""
1557
self.assertEqual(osutils.realpath(path1),
1558
osutils.realpath(path2),
1559
"apparent paths:\na = %s\nb = %s\n," % (path1, path2))
1561
def assertIsInstance(self, obj, kls, msg=None):
1562
"""Fail if obj is not an instance of kls
1564
:param msg: Supplementary message to show if the assertion fails.
1566
if not isinstance(obj, kls):
1567
m = "%r is an instance of %s rather than %s" % (
1568
obj, obj.__class__, kls)
1573
def assertFileEqual(self, content, path):
1574
"""Fail if path does not contain 'content'."""
1575
self.assertPathExists(path)
1576
f = file(path, 'rb')
1581
self.assertEqualDiff(content, s)
1583
def assertDocstring(self, expected_docstring, obj):
1584
"""Fail if obj does not have expected_docstring"""
1586
# With -OO the docstring should be None instead
1587
self.assertIs(obj.__doc__, None)
1589
self.assertEqual(expected_docstring, obj.__doc__)
1591
@symbol_versioning.deprecated_method(symbol_versioning.deprecated_in((2, 4)))
1592
def failUnlessExists(self, path):
1593
return self.assertPathExists(path)
1595
def assertPathExists(self, path):
1596
"""Fail unless path or paths, which may be abs or relative, exist."""
1597
if not isinstance(path, basestring):
1599
self.assertPathExists(p)
1601
self.assertTrue(osutils.lexists(path),
1602
path + " does not exist")
1604
@symbol_versioning.deprecated_method(symbol_versioning.deprecated_in((2, 4)))
1605
def failIfExists(self, path):
1606
return self.assertPathDoesNotExist(path)
1608
def assertPathDoesNotExist(self, path):
1609
"""Fail if path or paths, which may be abs or relative, exist."""
1610
if not isinstance(path, basestring):
1612
self.assertPathDoesNotExist(p)
1614
self.assertFalse(osutils.lexists(path),
1617
def _capture_deprecation_warnings(self, a_callable, *args, **kwargs):
1618
"""A helper for callDeprecated and applyDeprecated.
1620
:param a_callable: A callable to call.
1621
:param args: The positional arguments for the callable
1622
:param kwargs: The keyword arguments for the callable
1623
:return: A tuple (warnings, result). result is the result of calling
1624
a_callable(``*args``, ``**kwargs``).
1627
def capture_warnings(msg, cls=None, stacklevel=None):
1628
# we've hooked into a deprecation specific callpath,
1629
# only deprecations should getting sent via it.
1630
self.assertEqual(cls, DeprecationWarning)
1631
local_warnings.append(msg)
1632
original_warning_method = symbol_versioning.warn
1633
symbol_versioning.set_warning_method(capture_warnings)
1635
result = a_callable(*args, **kwargs)
1637
symbol_versioning.set_warning_method(original_warning_method)
1638
return (local_warnings, result)
1640
def applyDeprecated(self, deprecation_format, a_callable, *args, **kwargs):
1641
"""Call a deprecated callable without warning the user.
1643
Note that this only captures warnings raised by symbol_versioning.warn,
1644
not other callers that go direct to the warning module.
1646
To test that a deprecated method raises an error, do something like
1647
this (remember that both assertRaises and applyDeprecated delays *args
1648
and **kwargs passing)::
1650
self.assertRaises(errors.ReservedId,
1651
self.applyDeprecated,
1652
deprecated_in((1, 5, 0)),
1656
:param deprecation_format: The deprecation format that the callable
1657
should have been deprecated with. This is the same type as the
1658
parameter to deprecated_method/deprecated_function. If the
1659
callable is not deprecated with this format, an assertion error
1661
:param a_callable: A callable to call. This may be a bound method or
1662
a regular function. It will be called with ``*args`` and
1664
:param args: The positional arguments for the callable
1665
:param kwargs: The keyword arguments for the callable
1666
:return: The result of a_callable(``*args``, ``**kwargs``)
1668
call_warnings, result = self._capture_deprecation_warnings(a_callable,
1670
expected_first_warning = symbol_versioning.deprecation_string(
1671
a_callable, deprecation_format)
1672
if len(call_warnings) == 0:
1673
self.fail("No deprecation warning generated by call to %s" %
1675
self.assertEqual(expected_first_warning, call_warnings[0])
1678
def callCatchWarnings(self, fn, *args, **kw):
1679
"""Call a callable that raises python warnings.
1681
The caller's responsible for examining the returned warnings.
1683
If the callable raises an exception, the exception is not
1684
caught and propagates up to the caller. In that case, the list
1685
of warnings is not available.
1687
:returns: ([warning_object, ...], fn_result)
1689
# XXX: This is not perfect, because it completely overrides the
1690
# warnings filters, and some code may depend on suppressing particular
1691
# warnings. It's the easiest way to insulate ourselves from -Werror,
1692
# though. -- Andrew, 20071062
1694
def _catcher(message, category, filename, lineno, file=None, line=None):
1695
# despite the name, 'message' is normally(?) a Warning subclass
1697
wlist.append(message)
1698
saved_showwarning = warnings.showwarning
1699
saved_filters = warnings.filters
1701
warnings.showwarning = _catcher
1702
warnings.filters = []
1703
result = fn(*args, **kw)
1705
warnings.showwarning = saved_showwarning
1706
warnings.filters = saved_filters
1707
return wlist, result
1709
def callDeprecated(self, expected, callable, *args, **kwargs):
1710
"""Assert that a callable is deprecated in a particular way.
1712
This is a very precise test for unusual requirements. The
1713
applyDeprecated helper function is probably more suited for most tests
1714
as it allows you to simply specify the deprecation format being used
1715
and will ensure that that is issued for the function being called.
1717
Note that this only captures warnings raised by symbol_versioning.warn,
1718
not other callers that go direct to the warning module. To catch
1719
general warnings, use callCatchWarnings.
1721
:param expected: a list of the deprecation warnings expected, in order
1722
:param callable: The callable to call
1723
:param args: The positional arguments for the callable
1724
:param kwargs: The keyword arguments for the callable
1726
call_warnings, result = self._capture_deprecation_warnings(callable,
1728
self.assertEqual(expected, call_warnings)
1731
def _startLogFile(self):
1732
"""Setup a in-memory target for bzr and testcase log messages"""
1733
pseudo_log_file = StringIO()
1734
def _get_log_contents_for_weird_testtools_api():
1735
return [pseudo_log_file.getvalue().decode(
1736
"utf-8", "replace").encode("utf-8")]
1737
self.addDetail("log", content.Content(content.ContentType("text",
1738
"plain", {"charset": "utf8"}),
1739
_get_log_contents_for_weird_testtools_api))
1740
self._log_file = pseudo_log_file
1741
self._log_memento = trace.push_log_file(self._log_file)
1742
self.addCleanup(self._finishLogFile)
1744
def _finishLogFile(self):
1745
"""Flush and dereference the in-memory log for this testcase"""
1746
if trace._trace_file:
1747
# flush the log file, to get all content
1748
trace._trace_file.flush()
1749
trace.pop_log_file(self._log_memento)
1750
# The logging module now tracks references for cleanup so discard ours
1751
del self._log_memento
1753
def thisFailsStrictLockCheck(self):
1754
"""It is known that this test would fail with -Dstrict_locks.
1756
By default, all tests are run with strict lock checking unless
1757
-Edisable_lock_checks is supplied. However there are some tests which
1758
we know fail strict locks at this point that have not been fixed.
1759
They should call this function to disable the strict checking.
1761
This should be used sparingly, it is much better to fix the locking
1762
issues rather than papering over the problem by calling this function.
1764
debug.debug_flags.discard('strict_locks')
1766
def overrideAttr(self, obj, attr_name, new=_unitialized_attr):
1767
"""Overrides an object attribute restoring it after the test.
1769
:note: This should be used with discretion; you should think about
1770
whether it's better to make the code testable without monkey-patching.
1772
:param obj: The object that will be mutated.
1774
:param attr_name: The attribute name we want to preserve/override in
1777
:param new: The optional value we want to set the attribute to.
1779
:returns: The actual attr value.
1781
value = getattr(obj, attr_name)
1782
# The actual value is captured by the call below
1783
self.addCleanup(setattr, obj, attr_name, value)
1784
if new is not _unitialized_attr:
1785
setattr(obj, attr_name, new)
1788
def overrideEnv(self, name, new):
1789
"""Set an environment variable, and reset it after the test.
1791
:param name: The environment variable name.
1793
:param new: The value to set the variable to. If None, the
1794
variable is deleted from the environment.
1796
:returns: The actual variable value.
1798
value = osutils.set_or_unset_env(name, new)
1799
self.addCleanup(osutils.set_or_unset_env, name, value)
1802
def recordCalls(self, obj, attr_name):
1803
"""Monkeypatch in a wrapper that will record calls.
1805
The monkeypatch is automatically removed when the test concludes.
1807
:param obj: The namespace holding the reference to be replaced;
1808
typically a module, class, or object.
1809
:param attr_name: A string for the name of the attribute to
1811
:returns: A list that will be extended with one item every time the
1812
function is called, with a tuple of (args, kwargs).
1816
def decorator(*args, **kwargs):
1817
calls.append((args, kwargs))
1818
return orig(*args, **kwargs)
1819
orig = self.overrideAttr(obj, attr_name, decorator)
1822
def _cleanEnvironment(self):
1823
for name, value in isolated_environ.iteritems():
1824
self.overrideEnv(name, value)
1826
def _restoreHooks(self):
1827
for klass, (name, hooks) in self._preserved_hooks.items():
1828
setattr(klass, name, hooks)
1829
self._preserved_hooks.clear()
1830
bzrlib.hooks._lazy_hooks = self._preserved_lazy_hooks
1831
self._preserved_lazy_hooks.clear()
1833
def knownFailure(self, reason):
1834
"""Declare that this test fails for a known reason
1836
Tests that are known to fail should generally be using expectedFailure
1837
with an appropriate reverse assertion if a change could cause the test
1838
to start passing. Conversely if the test has no immediate prospect of
1839
succeeding then using skip is more suitable.
1841
When this method is called while an exception is being handled, that
1842
traceback will be used, otherwise a new exception will be thrown to
1843
provide one but won't be reported.
1845
self._add_reason(reason)
1847
exc_info = sys.exc_info()
1848
if exc_info != (None, None, None):
1849
self._report_traceback(exc_info)
1852
raise self.failureException(reason)
1853
except self.failureException:
1854
exc_info = sys.exc_info()
1855
# GZ 02-08-2011: Maybe cleanup this err.exc_info attribute too?
1856
raise testtools.testcase._ExpectedFailure(exc_info)
1860
def _suppress_log(self):
1861
"""Remove the log info from details."""
1862
self.discardDetail('log')
1864
def _do_skip(self, result, reason):
1865
self._suppress_log()
1866
addSkip = getattr(result, 'addSkip', None)
1867
if not callable(addSkip):
1868
result.addSuccess(result)
1870
addSkip(self, reason)
1873
def _do_known_failure(self, result, e):
1874
self._suppress_log()
1875
err = sys.exc_info()
1876
addExpectedFailure = getattr(result, 'addExpectedFailure', None)
1877
if addExpectedFailure is not None:
1878
addExpectedFailure(self, err)
1880
result.addSuccess(self)
1883
def _do_not_applicable(self, result, e):
1885
reason = 'No reason given'
1888
self._suppress_log ()
1889
addNotApplicable = getattr(result, 'addNotApplicable', None)
1890
if addNotApplicable is not None:
1891
result.addNotApplicable(self, reason)
1893
self._do_skip(result, reason)
1896
def _report_skip(self, result, err):
1897
"""Override the default _report_skip.
1899
We want to strip the 'log' detail. If we waint until _do_skip, it has
1900
already been formatted into the 'reason' string, and we can't pull it
1903
self._suppress_log()
1904
super(TestCase, self)._report_skip(self, result, err)
1907
def _report_expected_failure(self, result, err):
1910
See _report_skip for motivation.
1912
self._suppress_log()
1913
super(TestCase, self)._report_expected_failure(self, result, err)
1916
def _do_unsupported_or_skip(self, result, e):
1918
self._suppress_log()
1919
addNotSupported = getattr(result, 'addNotSupported', None)
1920
if addNotSupported is not None:
1921
result.addNotSupported(self, reason)
1923
self._do_skip(result, reason)
1925
def time(self, callable, *args, **kwargs):
1926
"""Run callable and accrue the time it takes to the benchmark time.
1928
If lsprofiling is enabled (i.e. by --lsprof-time to bzr selftest) then
1929
this will cause lsprofile statistics to be gathered and stored in
1932
if self._benchtime is None:
1933
self.addDetail('benchtime', content.Content(content.ContentType(
1934
"text", "plain"), lambda:[str(self._benchtime)]))
1938
if not self._gather_lsprof_in_benchmarks:
1939
return callable(*args, **kwargs)
1941
# record this benchmark
1942
ret, stats = bzrlib.lsprof.profile(callable, *args, **kwargs)
1944
self._benchcalls.append(((callable, args, kwargs), stats))
1947
self._benchtime += time.time() - start
1949
def log(self, *args):
1953
"""Get a unicode string containing the log from bzrlib.trace.
1955
Undecodable characters are replaced.
1957
return u"".join(self.getDetails()['log'].iter_text())
1959
def requireFeature(self, feature):
1960
"""This test requires a specific feature is available.
1962
:raises UnavailableFeature: When feature is not available.
1964
if not feature.available():
1965
raise UnavailableFeature(feature)
1967
def _run_bzr_autosplit(self, args, retcode, encoding, stdin,
1969
"""Run bazaar command line, splitting up a string command line."""
1970
if isinstance(args, basestring):
1971
# shlex don't understand unicode strings,
1972
# so args should be plain string (bialix 20070906)
1973
args = list(shlex.split(str(args)))
1974
return self._run_bzr_core(args, retcode=retcode,
1975
encoding=encoding, stdin=stdin, working_dir=working_dir,
1978
def _run_bzr_core(self, args, retcode, encoding, stdin,
1980
# Clear chk_map page cache, because the contents are likely to mask
1982
chk_map.clear_cache()
1983
if encoding is None:
1984
encoding = osutils.get_user_encoding()
1985
stdout = StringIOWrapper()
1986
stderr = StringIOWrapper()
1987
stdout.encoding = encoding
1988
stderr.encoding = encoding
1990
self.log('run bzr: %r', args)
1991
# FIXME: don't call into logging here
1992
handler = trace.EncodedStreamHandler(stderr, errors="replace",
1994
logger = logging.getLogger('')
1995
logger.addHandler(handler)
1996
old_ui_factory = ui.ui_factory
1997
ui.ui_factory = TestUIFactory(stdin=stdin, stdout=stdout, stderr=stderr)
2000
if working_dir is not None:
2001
cwd = osutils.getcwd()
2002
os.chdir(working_dir)
2006
result = self.apply_redirected(
2007
ui.ui_factory.stdin,
2009
_mod_commands.run_bzr_catch_user_errors,
2011
except KeyboardInterrupt:
2012
# Reraise KeyboardInterrupt with contents of redirected stdout
2013
# and stderr as arguments, for tests which are interested in
2014
# stdout and stderr and are expecting the exception.
2015
out = stdout.getvalue()
2016
err = stderr.getvalue()
2018
self.log('output:\n%r', out)
2020
self.log('errors:\n%r', err)
2021
raise KeyboardInterrupt(out, err)
2023
logger.removeHandler(handler)
2024
ui.ui_factory = old_ui_factory
2028
out = stdout.getvalue()
2029
err = stderr.getvalue()
2031
self.log('output:\n%r', out)
2033
self.log('errors:\n%r', err)
2034
if retcode is not None:
2035
self.assertEquals(retcode, result,
2036
message='Unexpected return code')
2037
return result, out, err
2039
def run_bzr(self, args, retcode=0, encoding=None, stdin=None,
2040
working_dir=None, error_regexes=[], output_encoding=None):
2041
"""Invoke bzr, as if it were run from the command line.
2043
The argument list should not include the bzr program name - the
2044
first argument is normally the bzr command. Arguments may be
2045
passed in three ways:
2047
1- A list of strings, eg ["commit", "a"]. This is recommended
2048
when the command contains whitespace or metacharacters, or
2049
is built up at run time.
2051
2- A single string, eg "add a". This is the most convenient
2052
for hardcoded commands.
2054
This runs bzr through the interface that catches and reports
2055
errors, and with logging set to something approximating the
2056
default, so that error reporting can be checked.
2058
This should be the main method for tests that want to exercise the
2059
overall behavior of the bzr application (rather than a unit test
2060
or a functional test of the library.)
2062
This sends the stdout/stderr results into the test's log,
2063
where it may be useful for debugging. See also run_captured.
2065
:keyword stdin: A string to be used as stdin for the command.
2066
:keyword retcode: The status code the command should return;
2068
:keyword working_dir: The directory to run the command in
2069
:keyword error_regexes: A list of expected error messages. If
2070
specified they must be seen in the error output of the command.
2072
retcode, out, err = self._run_bzr_autosplit(
2077
working_dir=working_dir,
2079
self.assertIsInstance(error_regexes, (list, tuple))
2080
for regex in error_regexes:
2081
self.assertContainsRe(err, regex)
2084
def run_bzr_error(self, error_regexes, *args, **kwargs):
2085
"""Run bzr, and check that stderr contains the supplied regexes
2087
:param error_regexes: Sequence of regular expressions which
2088
must each be found in the error output. The relative ordering
2090
:param args: command-line arguments for bzr
2091
:param kwargs: Keyword arguments which are interpreted by run_bzr
2092
This function changes the default value of retcode to be 3,
2093
since in most cases this is run when you expect bzr to fail.
2095
:return: (out, err) The actual output of running the command (in case
2096
you want to do more inspection)
2100
# Make sure that commit is failing because there is nothing to do
2101
self.run_bzr_error(['no changes to commit'],
2102
['commit', '-m', 'my commit comment'])
2103
# Make sure --strict is handling an unknown file, rather than
2104
# giving us the 'nothing to do' error
2105
self.build_tree(['unknown'])
2106
self.run_bzr_error(['Commit refused because there are unknown files'],
2107
['commit', --strict', '-m', 'my commit comment'])
2109
kwargs.setdefault('retcode', 3)
2110
kwargs['error_regexes'] = error_regexes
2111
out, err = self.run_bzr(*args, **kwargs)
2114
def run_bzr_subprocess(self, *args, **kwargs):
2115
"""Run bzr in a subprocess for testing.
2117
This starts a new Python interpreter and runs bzr in there.
2118
This should only be used for tests that have a justifiable need for
2119
this isolation: e.g. they are testing startup time, or signal
2120
handling, or early startup code, etc. Subprocess code can't be
2121
profiled or debugged so easily.
2123
:keyword retcode: The status code that is expected. Defaults to 0. If
2124
None is supplied, the status code is not checked.
2125
:keyword env_changes: A dictionary which lists changes to environment
2126
variables. A value of None will unset the env variable.
2127
The values must be strings. The change will only occur in the
2128
child, so you don't need to fix the environment after running.
2129
:keyword universal_newlines: Convert CRLF => LF
2130
:keyword allow_plugins: By default the subprocess is run with
2131
--no-plugins to ensure test reproducibility. Also, it is possible
2132
for system-wide plugins to create unexpected output on stderr,
2133
which can cause unnecessary test failures.
2135
env_changes = kwargs.get('env_changes', {})
2136
working_dir = kwargs.get('working_dir', None)
2137
allow_plugins = kwargs.get('allow_plugins', False)
2139
if isinstance(args[0], list):
2141
elif isinstance(args[0], basestring):
2142
args = list(shlex.split(args[0]))
2144
raise ValueError("passing varargs to run_bzr_subprocess")
2145
process = self.start_bzr_subprocess(args, env_changes=env_changes,
2146
working_dir=working_dir,
2147
allow_plugins=allow_plugins)
2148
# We distinguish between retcode=None and retcode not passed.
2149
supplied_retcode = kwargs.get('retcode', 0)
2150
return self.finish_bzr_subprocess(process, retcode=supplied_retcode,
2151
universal_newlines=kwargs.get('universal_newlines', False),
2154
def start_bzr_subprocess(self, process_args, env_changes=None,
2155
skip_if_plan_to_signal=False,
2157
allow_plugins=False, stderr=subprocess.PIPE):
2158
"""Start bzr in a subprocess for testing.
2160
This starts a new Python interpreter and runs bzr in there.
2161
This should only be used for tests that have a justifiable need for
2162
this isolation: e.g. they are testing startup time, or signal
2163
handling, or early startup code, etc. Subprocess code can't be
2164
profiled or debugged so easily.
2166
:param process_args: a list of arguments to pass to the bzr executable,
2167
for example ``['--version']``.
2168
:param env_changes: A dictionary which lists changes to environment
2169
variables. A value of None will unset the env variable.
2170
The values must be strings. The change will only occur in the
2171
child, so you don't need to fix the environment after running.
2172
:param skip_if_plan_to_signal: raise TestSkipped when true and system
2173
doesn't support signalling subprocesses.
2174
:param allow_plugins: If False (default) pass --no-plugins to bzr.
2175
:param stderr: file to use for the subprocess's stderr. Valid values
2176
are those valid for the stderr argument of `subprocess.Popen`.
2177
Default value is ``subprocess.PIPE``.
2179
:returns: Popen object for the started process.
2181
if skip_if_plan_to_signal:
2182
if os.name != "posix":
2183
raise TestSkipped("Sending signals not supported")
2185
if env_changes is None:
2187
# Because $HOME is set to a tempdir for the context of a test, modules
2188
# installed in the user dir will not be found unless $PYTHONUSERBASE
2189
# gets set to the computed directory of this parent process.
2190
if site.USER_BASE is not None:
2191
env_changes["PYTHONUSERBASE"] = site.USER_BASE
2194
def cleanup_environment():
2195
for env_var, value in env_changes.iteritems():
2196
old_env[env_var] = osutils.set_or_unset_env(env_var, value)
2198
def restore_environment():
2199
for env_var, value in old_env.iteritems():
2200
osutils.set_or_unset_env(env_var, value)
2202
bzr_path = self.get_bzr_path()
2205
if working_dir is not None:
2206
cwd = osutils.getcwd()
2207
os.chdir(working_dir)
2210
# win32 subprocess doesn't support preexec_fn
2211
# so we will avoid using it on all platforms, just to
2212
# make sure the code path is used, and we don't break on win32
2213
cleanup_environment()
2214
# Include the subprocess's log file in the test details, in case
2215
# the test fails due to an error in the subprocess.
2216
self._add_subprocess_log(trace._get_bzr_log_filename())
2217
command = [sys.executable]
2218
# frozen executables don't need the path to bzr
2219
if getattr(sys, "frozen", None) is None:
2220
command.append(bzr_path)
2221
if not allow_plugins:
2222
command.append('--no-plugins')
2223
command.extend(process_args)
2224
process = self._popen(command, stdin=subprocess.PIPE,
2225
stdout=subprocess.PIPE,
2228
restore_environment()
2234
def _add_subprocess_log(self, log_file_path):
2235
if len(self._log_files) == 0:
2236
# Register an addCleanup func. We do this on the first call to
2237
# _add_subprocess_log rather than in TestCase.setUp so that this
2238
# addCleanup is registered after any cleanups for tempdirs that
2239
# subclasses might create, which will probably remove the log file
2241
self.addCleanup(self._subprocess_log_cleanup)
2242
# self._log_files is a set, so if a log file is reused we won't grab it
2244
self._log_files.add(log_file_path)
2246
def _subprocess_log_cleanup(self):
2247
for count, log_file_path in enumerate(self._log_files):
2248
# We use buffer_now=True to avoid holding the file open beyond
2249
# the life of this function, which might interfere with e.g.
2250
# cleaning tempdirs on Windows.
2251
# XXX: Testtools 0.9.5 doesn't have the content_from_file helper
2252
#detail_content = content.content_from_file(
2253
# log_file_path, buffer_now=True)
2254
with open(log_file_path, 'rb') as log_file:
2255
log_file_bytes = log_file.read()
2256
detail_content = content.Content(content.ContentType("text",
2257
"plain", {"charset": "utf8"}), lambda: [log_file_bytes])
2258
self.addDetail("start_bzr_subprocess-log-%d" % (count,),
2261
def _popen(self, *args, **kwargs):
2262
"""Place a call to Popen.
2264
Allows tests to override this method to intercept the calls made to
2265
Popen for introspection.
2267
return subprocess.Popen(*args, **kwargs)
2269
def get_source_path(self):
2270
"""Return the path of the directory containing bzrlib."""
2271
return os.path.dirname(os.path.dirname(bzrlib.__file__))
2273
def get_bzr_path(self):
2274
"""Return the path of the 'bzr' executable for this test suite."""
2275
bzr_path = os.path.join(self.get_source_path(), "bzr")
2276
if not os.path.isfile(bzr_path):
2277
# We are probably installed. Assume sys.argv is the right file
2278
bzr_path = sys.argv[0]
2281
def finish_bzr_subprocess(self, process, retcode=0, send_signal=None,
2282
universal_newlines=False, process_args=None):
2283
"""Finish the execution of process.
2285
:param process: the Popen object returned from start_bzr_subprocess.
2286
:param retcode: The status code that is expected. Defaults to 0. If
2287
None is supplied, the status code is not checked.
2288
:param send_signal: an optional signal to send to the process.
2289
:param universal_newlines: Convert CRLF => LF
2290
:returns: (stdout, stderr)
2292
if send_signal is not None:
2293
os.kill(process.pid, send_signal)
2294
out, err = process.communicate()
2296
if universal_newlines:
2297
out = out.replace('\r\n', '\n')
2298
err = err.replace('\r\n', '\n')
2300
if retcode is not None and retcode != process.returncode:
2301
if process_args is None:
2302
process_args = "(unknown args)"
2303
trace.mutter('Output of bzr %s:\n%s', process_args, out)
2304
trace.mutter('Error for bzr %s:\n%s', process_args, err)
2305
self.fail('Command bzr %s failed with retcode %s != %s'
2306
% (process_args, retcode, process.returncode))
2309
def check_tree_shape(self, tree, shape):
2310
"""Compare a tree to a list of expected names.
2312
Fail if they are not precisely equal.
2315
shape = list(shape) # copy
2316
for path, ie in tree.iter_entries_by_dir():
2317
name = path.replace('\\', '/')
2318
if ie.kind == 'directory':
2321
pass # ignore root entry
2327
self.fail("expected paths not found in inventory: %r" % shape)
2329
self.fail("unexpected paths found in inventory: %r" % extras)
2331
def apply_redirected(self, stdin=None, stdout=None, stderr=None,
2332
a_callable=None, *args, **kwargs):
2333
"""Call callable with redirected std io pipes.
2335
Returns the return code."""
2336
if not callable(a_callable):
2337
raise ValueError("a_callable must be callable.")
2339
stdin = StringIO("")
2341
if getattr(self, "_log_file", None) is not None:
2342
stdout = self._log_file
2346
if getattr(self, "_log_file", None is not None):
2347
stderr = self._log_file
2350
real_stdin = sys.stdin
2351
real_stdout = sys.stdout
2352
real_stderr = sys.stderr
2357
return a_callable(*args, **kwargs)
2359
sys.stdout = real_stdout
2360
sys.stderr = real_stderr
2361
sys.stdin = real_stdin
2363
def reduceLockdirTimeout(self):
2364
"""Reduce the default lock timeout for the duration of the test, so that
2365
if LockContention occurs during a test, it does so quickly.
2367
Tests that expect to provoke LockContention errors should call this.
2369
self.overrideAttr(lockdir, '_DEFAULT_TIMEOUT_SECONDS', 0)
2371
def make_utf8_encoded_stringio(self, encoding_type=None):
2372
"""Return a StringIOWrapper instance, that will encode Unicode
2375
if encoding_type is None:
2376
encoding_type = 'strict'
2378
output_encoding = 'utf-8'
2379
sio = codecs.getwriter(output_encoding)(sio, errors=encoding_type)
2380
sio.encoding = output_encoding
2383
def disable_verb(self, verb):
2384
"""Disable a smart server verb for one test."""
2385
from bzrlib.smart import request
2386
request_handlers = request.request_handlers
2387
orig_method = request_handlers.get(verb)
2388
orig_info = request_handlers.get_info(verb)
2389
request_handlers.remove(verb)
2390
self.addCleanup(request_handlers.register, verb, orig_method,
2394
class CapturedCall(object):
2395
"""A helper for capturing smart server calls for easy debug analysis."""
2397
def __init__(self, params, prefix_length):
2398
"""Capture the call with params and skip prefix_length stack frames."""
2401
# The last 5 frames are the __init__, the hook frame, and 3 smart
2402
# client frames. Beyond this we could get more clever, but this is good
2404
stack = traceback.extract_stack()[prefix_length:-5]
2405
self.stack = ''.join(traceback.format_list(stack))
2408
return self.call.method
2411
return self.call.method
2417
class TestCaseWithMemoryTransport(TestCase):
2418
"""Common test class for tests that do not need disk resources.
2420
Tests that need disk resources should derive from TestCaseInTempDir
2421
orTestCaseWithTransport.
2423
TestCaseWithMemoryTransport sets the TEST_ROOT variable for all bzr tests.
2425
For TestCaseWithMemoryTransport the ``test_home_dir`` is set to the name of
2426
a directory which does not exist. This serves to help ensure test isolation
2427
is preserved. ``test_dir`` is set to the TEST_ROOT, as is cwd, because they
2428
must exist. However, TestCaseWithMemoryTransport does not offer local file
2429
defaults for the transport in tests, nor does it obey the command line
2430
override, so tests that accidentally write to the common directory should
2433
:cvar TEST_ROOT: Directory containing all temporary directories, plus a
2434
``.bzr`` directory that stops us ascending higher into the filesystem.
2440
def __init__(self, methodName='runTest'):
2441
# allow test parameterization after test construction and before test
2442
# execution. Variables that the parameterizer sets need to be
2443
# ones that are not set by setUp, or setUp will trash them.
2444
super(TestCaseWithMemoryTransport, self).__init__(methodName)
2445
self.vfs_transport_factory = default_transport
2446
self.transport_server = None
2447
self.transport_readonly_server = None
2448
self.__vfs_server = None
2450
def get_transport(self, relpath=None):
2451
"""Return a writeable transport.
2453
This transport is for the test scratch space relative to
2456
:param relpath: a path relative to the base url.
2458
t = _mod_transport.get_transport_from_url(self.get_url(relpath))
2459
self.assertFalse(t.is_readonly())
2462
def get_readonly_transport(self, relpath=None):
2463
"""Return a readonly transport for the test scratch space
2465
This can be used to test that operations which should only need
2466
readonly access in fact do not try to write.
2468
:param relpath: a path relative to the base url.
2470
t = _mod_transport.get_transport_from_url(
2471
self.get_readonly_url(relpath))
2472
self.assertTrue(t.is_readonly())
2475
def create_transport_readonly_server(self):
2476
"""Create a transport server from class defined at init.
2478
This is mostly a hook for daughter classes.
2480
return self.transport_readonly_server()
2482
def get_readonly_server(self):
2483
"""Get the server instance for the readonly transport
2485
This is useful for some tests with specific servers to do diagnostics.
2487
if self.__readonly_server is None:
2488
if self.transport_readonly_server is None:
2489
# readonly decorator requested
2490
self.__readonly_server = test_server.ReadonlyServer()
2492
# explicit readonly transport.
2493
self.__readonly_server = self.create_transport_readonly_server()
2494
self.start_server(self.__readonly_server,
2495
self.get_vfs_only_server())
2496
return self.__readonly_server
2498
def get_readonly_url(self, relpath=None):
2499
"""Get a URL for the readonly transport.
2501
This will either be backed by '.' or a decorator to the transport
2502
used by self.get_url()
2503
relpath provides for clients to get a path relative to the base url.
2504
These should only be downwards relative, not upwards.
2506
base = self.get_readonly_server().get_url()
2507
return self._adjust_url(base, relpath)
2509
def get_vfs_only_server(self):
2510
"""Get the vfs only read/write server instance.
2512
This is useful for some tests with specific servers that need
2515
For TestCaseWithMemoryTransport this is always a MemoryServer, and there
2516
is no means to override it.
2518
if self.__vfs_server is None:
2519
self.__vfs_server = memory.MemoryServer()
2520
self.start_server(self.__vfs_server)
2521
return self.__vfs_server
2523
def get_server(self):
2524
"""Get the read/write server instance.
2526
This is useful for some tests with specific servers that need
2529
This is built from the self.transport_server factory. If that is None,
2530
then the self.get_vfs_server is returned.
2532
if self.__server is None:
2533
if (self.transport_server is None or self.transport_server is
2534
self.vfs_transport_factory):
2535
self.__server = self.get_vfs_only_server()
2537
# bring up a decorated means of access to the vfs only server.
2538
self.__server = self.transport_server()
2539
self.start_server(self.__server, self.get_vfs_only_server())
2540
return self.__server
2542
def _adjust_url(self, base, relpath):
2543
"""Get a URL (or maybe a path) for the readwrite transport.
2545
This will either be backed by '.' or to an equivalent non-file based
2547
relpath provides for clients to get a path relative to the base url.
2548
These should only be downwards relative, not upwards.
2550
if relpath is not None and relpath != '.':
2551
if not base.endswith('/'):
2553
# XXX: Really base should be a url; we did after all call
2554
# get_url()! But sometimes it's just a path (from
2555
# LocalAbspathServer), and it'd be wrong to append urlescaped data
2556
# to a non-escaped local path.
2557
if base.startswith('./') or base.startswith('/'):
2560
base += urlutils.escape(relpath)
2563
def get_url(self, relpath=None):
2564
"""Get a URL (or maybe a path) for the readwrite transport.
2566
This will either be backed by '.' or to an equivalent non-file based
2568
relpath provides for clients to get a path relative to the base url.
2569
These should only be downwards relative, not upwards.
2571
base = self.get_server().get_url()
2572
return self._adjust_url(base, relpath)
2574
def get_vfs_only_url(self, relpath=None):
2575
"""Get a URL (or maybe a path for the plain old vfs transport.
2577
This will never be a smart protocol. It always has all the
2578
capabilities of the local filesystem, but it might actually be a
2579
MemoryTransport or some other similar virtual filesystem.
2581
This is the backing transport (if any) of the server returned by
2582
get_url and get_readonly_url.
2584
:param relpath: provides for clients to get a path relative to the base
2585
url. These should only be downwards relative, not upwards.
2588
base = self.get_vfs_only_server().get_url()
2589
return self._adjust_url(base, relpath)
2591
def _create_safety_net(self):
2592
"""Make a fake bzr directory.
2594
This prevents any tests propagating up onto the TEST_ROOT directory's
2597
root = TestCaseWithMemoryTransport.TEST_ROOT
2598
# Make sure we get a readable and accessible home for .bzr.log
2599
# and/or config files, and not fallback to weird defaults (see
2600
# http://pad.lv/825027).
2601
self.assertIs(None, os.environ.get('BZR_HOME', None))
2602
os.environ['BZR_HOME'] = root
2603
wt = controldir.ControlDir.create_standalone_workingtree(root)
2604
del os.environ['BZR_HOME']
2605
# Hack for speed: remember the raw bytes of the dirstate file so that
2606
# we don't need to re-open the wt to check it hasn't changed.
2607
TestCaseWithMemoryTransport._SAFETY_NET_PRISTINE_DIRSTATE = (
2608
wt.control_transport.get_bytes('dirstate'))
2610
def _check_safety_net(self):
2611
"""Check that the safety .bzr directory have not been touched.
2613
_make_test_root have created a .bzr directory to prevent tests from
2614
propagating. This method ensures than a test did not leaked.
2616
root = TestCaseWithMemoryTransport.TEST_ROOT
2617
t = _mod_transport.get_transport_from_path(root)
2618
self.permit_url(t.base)
2619
if (t.get_bytes('.bzr/checkout/dirstate') !=
2620
TestCaseWithMemoryTransport._SAFETY_NET_PRISTINE_DIRSTATE):
2621
# The current test have modified the /bzr directory, we need to
2622
# recreate a new one or all the followng tests will fail.
2623
# If you need to inspect its content uncomment the following line
2624
# import pdb; pdb.set_trace()
2625
_rmtree_temp_dir(root + '/.bzr', test_id=self.id())
2626
self._create_safety_net()
2627
raise AssertionError('%s/.bzr should not be modified' % root)
2629
def _make_test_root(self):
2630
if TestCaseWithMemoryTransport.TEST_ROOT is None:
2631
# Watch out for tricky test dir (on OSX /tmp -> /private/tmp)
2632
root = osutils.realpath(osutils.mkdtemp(prefix='testbzr-',
2634
TestCaseWithMemoryTransport.TEST_ROOT = root
2636
self._create_safety_net()
2638
# The same directory is used by all tests, and we're not
2639
# specifically told when all tests are finished. This will do.
2640
atexit.register(_rmtree_temp_dir, root)
2642
self.permit_dir(TestCaseWithMemoryTransport.TEST_ROOT)
2643
self.addCleanup(self._check_safety_net)
2645
def makeAndChdirToTestDir(self):
2646
"""Create a temporary directories for this one test.
2648
This must set self.test_home_dir and self.test_dir and chdir to
2651
For TestCaseWithMemoryTransport we chdir to the TEST_ROOT for this test.
2653
os.chdir(TestCaseWithMemoryTransport.TEST_ROOT)
2654
self.test_dir = TestCaseWithMemoryTransport.TEST_ROOT
2655
self.test_home_dir = self.test_dir + "/MemoryTransportMissingHomeDir"
2656
self.permit_dir(self.test_dir)
2658
def make_branch(self, relpath, format=None, name=None):
2659
"""Create a branch on the transport at relpath."""
2660
repo = self.make_repository(relpath, format=format)
2661
return repo.bzrdir.create_branch(append_revisions_only=False,
2664
def get_default_format(self):
2667
def resolve_format(self, format):
2668
"""Resolve an object to a ControlDir format object.
2670
The initial format object can either already be
2671
a ControlDirFormat, None (for the default format),
2672
or a string with the name of the control dir format.
2674
:param format: Object to resolve
2675
:return A ControlDirFormat instance
2678
format = self.get_default_format()
2679
if isinstance(format, basestring):
2680
format = controldir.format_registry.make_bzrdir(format)
2683
def make_bzrdir(self, relpath, format=None):
2685
# might be a relative or absolute path
2686
maybe_a_url = self.get_url(relpath)
2687
segments = maybe_a_url.rsplit('/', 1)
2688
t = _mod_transport.get_transport(maybe_a_url)
2689
if len(segments) > 1 and segments[-1] not in ('', '.'):
2691
format = self.resolve_format(format)
2692
return format.initialize_on_transport(t)
2693
except errors.UninitializableFormat:
2694
raise TestSkipped("Format %s is not initializable." % format)
2696
def make_repository(self, relpath, shared=None, format=None):
2697
"""Create a repository on our default transport at relpath.
2699
Note that relpath must be a relative path, not a full url.
2701
# FIXME: If you create a remoterepository this returns the underlying
2702
# real format, which is incorrect. Actually we should make sure that
2703
# RemoteBzrDir returns a RemoteRepository.
2704
# maybe mbp 20070410
2705
made_control = self.make_bzrdir(relpath, format=format)
2706
return made_control.create_repository(shared=shared)
2708
def make_smart_server(self, path, backing_server=None):
2709
if backing_server is None:
2710
backing_server = self.get_server()
2711
smart_server = test_server.SmartTCPServer_for_testing()
2712
self.start_server(smart_server, backing_server)
2713
remote_transport = _mod_transport.get_transport_from_url(smart_server.get_url()
2715
return remote_transport
2717
def make_branch_and_memory_tree(self, relpath, format=None):
2718
"""Create a branch on the default transport and a MemoryTree for it."""
2719
b = self.make_branch(relpath, format=format)
2720
return memorytree.MemoryTree.create_on_branch(b)
2722
def make_branch_builder(self, relpath, format=None):
2723
branch = self.make_branch(relpath, format=format)
2724
return branchbuilder.BranchBuilder(branch=branch)
2726
def overrideEnvironmentForTesting(self):
2727
test_home_dir = self.test_home_dir
2728
if isinstance(test_home_dir, unicode):
2729
test_home_dir = test_home_dir.encode(sys.getfilesystemencoding())
2730
self.overrideEnv('HOME', test_home_dir)
2731
self.overrideEnv('BZR_HOME', test_home_dir)
2734
super(TestCaseWithMemoryTransport, self).setUp()
2736
def _add_disconnect_cleanup(transport):
2737
"""Schedule disconnection of given transport at test cleanup
2739
This needs to happen for all connected transports or leaks occur.
2741
Note reconnections may mean we call disconnect multiple times per
2742
transport which is suboptimal but seems harmless.
2744
self.addCleanup(transport.disconnect)
2746
_mod_transport.Transport.hooks.install_named_hook('post_connect',
2747
_add_disconnect_cleanup, None)
2749
self._make_test_root()
2750
self.addCleanup(os.chdir, os.getcwdu())
2751
self.makeAndChdirToTestDir()
2752
self.overrideEnvironmentForTesting()
2753
self.__readonly_server = None
2754
self.__server = None
2755
self.reduceLockdirTimeout()
2757
def setup_smart_server_with_call_log(self):
2758
"""Sets up a smart server as the transport server with a call log."""
2759
self.transport_server = test_server.SmartTCPServer_for_testing
2760
self.hpss_connections = []
2761
self.hpss_calls = []
2763
# Skip the current stack down to the caller of
2764
# setup_smart_server_with_call_log
2765
prefix_length = len(traceback.extract_stack()) - 2
2766
def capture_hpss_call(params):
2767
self.hpss_calls.append(
2768
CapturedCall(params, prefix_length))
2769
def capture_connect(transport):
2770
self.hpss_connections.append(transport)
2771
client._SmartClient.hooks.install_named_hook(
2772
'call', capture_hpss_call, None)
2773
_mod_transport.Transport.hooks.install_named_hook(
2774
'post_connect', capture_connect, None)
2776
def reset_smart_call_log(self):
2777
self.hpss_calls = []
2778
self.hpss_connections = []
2781
class TestCaseInTempDir(TestCaseWithMemoryTransport):
2782
"""Derived class that runs a test within a temporary directory.
2784
This is useful for tests that need to create a branch, etc.
2786
The directory is created in a slightly complex way: for each
2787
Python invocation, a new temporary top-level directory is created.
2788
All test cases create their own directory within that. If the
2789
tests complete successfully, the directory is removed.
2791
:ivar test_base_dir: The path of the top-level directory for this
2792
test, which contains a home directory and a work directory.
2794
:ivar test_home_dir: An initially empty directory under test_base_dir
2795
which is used as $HOME for this test.
2797
:ivar test_dir: A directory under test_base_dir used as the current
2798
directory when the test proper is run.
2801
OVERRIDE_PYTHON = 'python'
2804
super(TestCaseInTempDir, self).setUp()
2805
# Remove the protection set in isolated_environ, we have a proper
2806
# access to disk resources now.
2807
self.overrideEnv('BZR_LOG', None)
2809
def check_file_contents(self, filename, expect):
2810
self.log("check contents of file %s" % filename)
2816
if contents != expect:
2817
self.log("expected: %r" % expect)
2818
self.log("actually: %r" % contents)
2819
self.fail("contents of %s not as expected" % filename)
2821
def _getTestDirPrefix(self):
2822
# create a directory within the top level test directory
2823
if sys.platform in ('win32', 'cygwin'):
2824
name_prefix = re.sub('[<>*=+",:;_/\\-]', '_', self.id())
2825
# windows is likely to have path-length limits so use a short name
2826
name_prefix = name_prefix[-30:]
2828
name_prefix = re.sub('[/]', '_', self.id())
2831
def makeAndChdirToTestDir(self):
2832
"""See TestCaseWithMemoryTransport.makeAndChdirToTestDir().
2834
For TestCaseInTempDir we create a temporary directory based on the test
2835
name and then create two subdirs - test and home under it.
2837
name_prefix = osutils.pathjoin(TestCaseWithMemoryTransport.TEST_ROOT,
2838
self._getTestDirPrefix())
2840
for i in range(100):
2841
if os.path.exists(name):
2842
name = name_prefix + '_' + str(i)
2844
# now create test and home directories within this dir
2845
self.test_base_dir = name
2846
self.addCleanup(self.deleteTestDir)
2847
os.mkdir(self.test_base_dir)
2849
self.permit_dir(self.test_base_dir)
2850
# 'sprouting' and 'init' of a branch both walk up the tree to find
2851
# stacking policy to honour; create a bzr dir with an unshared
2852
# repository (but not a branch - our code would be trying to escape
2853
# then!) to stop them, and permit it to be read.
2854
# control = controldir.ControlDir.create(self.test_base_dir)
2855
# control.create_repository()
2856
self.test_home_dir = self.test_base_dir + '/home'
2857
os.mkdir(self.test_home_dir)
2858
self.test_dir = self.test_base_dir + '/work'
2859
os.mkdir(self.test_dir)
2860
os.chdir(self.test_dir)
2861
# put name of test inside
2862
f = file(self.test_base_dir + '/name', 'w')
2868
def deleteTestDir(self):
2869
os.chdir(TestCaseWithMemoryTransport.TEST_ROOT)
2870
_rmtree_temp_dir(self.test_base_dir, test_id=self.id())
2872
def build_tree(self, shape, line_endings='binary', transport=None):
2873
"""Build a test tree according to a pattern.
2875
shape is a sequence of file specifications. If the final
2876
character is '/', a directory is created.
2878
This assumes that all the elements in the tree being built are new.
2880
This doesn't add anything to a branch.
2882
:type shape: list or tuple.
2883
:param line_endings: Either 'binary' or 'native'
2884
in binary mode, exact contents are written in native mode, the
2885
line endings match the default platform endings.
2886
:param transport: A transport to write to, for building trees on VFS's.
2887
If the transport is readonly or None, "." is opened automatically.
2890
if type(shape) not in (list, tuple):
2891
raise AssertionError("Parameter 'shape' should be "
2892
"a list or a tuple. Got %r instead" % (shape,))
2893
# It's OK to just create them using forward slashes on windows.
2894
if transport is None or transport.is_readonly():
2895
transport = _mod_transport.get_transport_from_path(".")
2897
self.assertIsInstance(name, basestring)
2899
transport.mkdir(urlutils.escape(name[:-1]))
2901
if line_endings == 'binary':
2903
elif line_endings == 'native':
2906
raise errors.BzrError(
2907
'Invalid line ending request %r' % line_endings)
2908
content = "contents of %s%s" % (name.encode('utf-8'), end)
2909
transport.put_bytes_non_atomic(urlutils.escape(name), content)
2911
build_tree_contents = staticmethod(treeshape.build_tree_contents)
2913
def assertInWorkingTree(self, path, root_path='.', tree=None):
2914
"""Assert whether path or paths are in the WorkingTree"""
2916
tree = workingtree.WorkingTree.open(root_path)
2917
if not isinstance(path, basestring):
2919
self.assertInWorkingTree(p, tree=tree)
2921
self.assertIsNot(tree.path2id(path), None,
2922
path+' not in working tree.')
2924
def assertNotInWorkingTree(self, path, root_path='.', tree=None):
2925
"""Assert whether path or paths are not in the WorkingTree"""
2927
tree = workingtree.WorkingTree.open(root_path)
2928
if not isinstance(path, basestring):
2930
self.assertNotInWorkingTree(p,tree=tree)
2932
self.assertIs(tree.path2id(path), None, path+' in working tree.')
2935
class TestCaseWithTransport(TestCaseInTempDir):
2936
"""A test case that provides get_url and get_readonly_url facilities.
2938
These back onto two transport servers, one for readonly access and one for
2941
If no explicit class is provided for readonly access, a
2942
ReadonlyTransportDecorator is used instead which allows the use of non disk
2943
based read write transports.
2945
If an explicit class is provided for readonly access, that server and the
2946
readwrite one must both define get_url() as resolving to os.getcwd().
2949
def get_vfs_only_server(self):
2950
"""See TestCaseWithMemoryTransport.
2952
This is useful for some tests with specific servers that need
2955
if self.__vfs_server is None:
2956
self.__vfs_server = self.vfs_transport_factory()
2957
self.start_server(self.__vfs_server)
2958
return self.__vfs_server
2960
def make_branch_and_tree(self, relpath, format=None):
2961
"""Create a branch on the transport and a tree locally.
2963
If the transport is not a LocalTransport, the Tree can't be created on
2964
the transport. In that case if the vfs_transport_factory is
2965
LocalURLServer the working tree is created in the local
2966
directory backing the transport, and the returned tree's branch and
2967
repository will also be accessed locally. Otherwise a lightweight
2968
checkout is created and returned.
2970
We do this because we can't physically create a tree in the local
2971
path, with a branch reference to the transport_factory url, and
2972
a branch + repository in the vfs_transport, unless the vfs_transport
2973
namespace is distinct from the local disk - the two branch objects
2974
would collide. While we could construct a tree with its branch object
2975
pointing at the transport_factory transport in memory, reopening it
2976
would behaving unexpectedly, and has in the past caused testing bugs
2977
when we tried to do it that way.
2979
:param format: The BzrDirFormat.
2980
:returns: the WorkingTree.
2982
# TODO: always use the local disk path for the working tree,
2983
# this obviously requires a format that supports branch references
2984
# so check for that by checking bzrdir.BzrDirFormat.get_default_format()
2986
format = self.resolve_format(format=format)
2987
if not format.supports_workingtrees:
2988
b = self.make_branch(relpath+'.branch', format=format)
2989
return b.create_checkout(relpath, lightweight=True)
2990
b = self.make_branch(relpath, format=format)
2992
return b.bzrdir.create_workingtree()
2993
except errors.NotLocalUrl:
2994
# We can only make working trees locally at the moment. If the
2995
# transport can't support them, then we keep the non-disk-backed
2996
# branch and create a local checkout.
2997
if self.vfs_transport_factory is test_server.LocalURLServer:
2998
# the branch is colocated on disk, we cannot create a checkout.
2999
# hopefully callers will expect this.
3000
local_controldir = controldir.ControlDir.open(
3001
self.get_vfs_only_url(relpath))
3002
wt = local_controldir.create_workingtree()
3003
if wt.branch._format != b._format:
3005
# Make sure that assigning to wt._branch fixes wt.branch,
3006
# in case the implementation details of workingtree objects
3008
self.assertIs(b, wt.branch)
3011
return b.create_checkout(relpath, lightweight=True)
3013
def assertIsDirectory(self, relpath, transport):
3014
"""Assert that relpath within transport is a directory.
3016
This may not be possible on all transports; in that case it propagates
3017
a TransportNotPossible.
3020
mode = transport.stat(relpath).st_mode
3021
except errors.NoSuchFile:
3022
self.fail("path %s is not a directory; no such file"
3024
if not stat.S_ISDIR(mode):
3025
self.fail("path %s is not a directory; has mode %#o"
3028
def assertTreesEqual(self, left, right):
3029
"""Check that left and right have the same content and properties."""
3030
# we use a tree delta to check for equality of the content, and we
3031
# manually check for equality of other things such as the parents list.
3032
self.assertEqual(left.get_parent_ids(), right.get_parent_ids())
3033
differences = left.changes_from(right)
3034
self.assertFalse(differences.has_changed(),
3035
"Trees %r and %r are different: %r" % (left, right, differences))
3038
super(TestCaseWithTransport, self).setUp()
3039
self.__vfs_server = None
3041
def disable_missing_extensions_warning(self):
3042
"""Some tests expect a precise stderr content.
3044
There is no point in forcing them to duplicate the extension related
3047
config.GlobalConfig().set_user_option('ignore_missing_extensions', True)
3050
class ChrootedTestCase(TestCaseWithTransport):
3051
"""A support class that provides readonly urls outside the local namespace.
3053
This is done by checking if self.transport_server is a MemoryServer. if it
3054
is then we are chrooted already, if it is not then an HttpServer is used
3057
TODO RBC 20060127: make this an option to TestCaseWithTransport so it can
3058
be used without needed to redo it when a different
3059
subclass is in use ?
3063
from bzrlib.tests import http_server
3064
super(ChrootedTestCase, self).setUp()
3065
if not self.vfs_transport_factory == memory.MemoryServer:
3066
self.transport_readonly_server = http_server.HttpServer
3069
def condition_id_re(pattern):
3070
"""Create a condition filter which performs a re check on a test's id.
3072
:param pattern: A regular expression string.
3073
:return: A callable that returns True if the re matches.
3075
filter_re = re.compile(pattern, 0)
3076
def condition(test):
3078
return filter_re.search(test_id)
3082
def condition_isinstance(klass_or_klass_list):
3083
"""Create a condition filter which returns isinstance(param, klass).
3085
:return: A callable which when called with one parameter obj return the
3086
result of isinstance(obj, klass_or_klass_list).
3089
return isinstance(obj, klass_or_klass_list)
3093
def condition_id_in_list(id_list):
3094
"""Create a condition filter which verify that test's id in a list.
3096
:param id_list: A TestIdList object.
3097
:return: A callable that returns True if the test's id appears in the list.
3099
def condition(test):
3100
return id_list.includes(test.id())
3104
def condition_id_startswith(starts):
3105
"""Create a condition filter verifying that test's id starts with a string.
3107
:param starts: A list of string.
3108
:return: A callable that returns True if the test's id starts with one of
3111
def condition(test):
3112
for start in starts:
3113
if test.id().startswith(start):
3119
def exclude_tests_by_condition(suite, condition):
3120
"""Create a test suite which excludes some tests from suite.
3122
:param suite: The suite to get tests from.
3123
:param condition: A callable whose result evaluates True when called with a
3124
test case which should be excluded from the result.
3125
:return: A suite which contains the tests found in suite that fail
3129
for test in iter_suite_tests(suite):
3130
if not condition(test):
3132
return TestUtil.TestSuite(result)
3135
def filter_suite_by_condition(suite, condition):
3136
"""Create a test suite by filtering another one.
3138
:param suite: The source suite.
3139
:param condition: A callable whose result evaluates True when called with a
3140
test case which should be included in the result.
3141
:return: A suite which contains the tests found in suite that pass
3145
for test in iter_suite_tests(suite):
3148
return TestUtil.TestSuite(result)
3151
def filter_suite_by_re(suite, pattern):
3152
"""Create a test suite by filtering another one.
3154
:param suite: the source suite
3155
:param pattern: pattern that names must match
3156
:returns: the newly created suite
3158
condition = condition_id_re(pattern)
3159
result_suite = filter_suite_by_condition(suite, condition)
3163
def filter_suite_by_id_list(suite, test_id_list):
3164
"""Create a test suite by filtering another one.
3166
:param suite: The source suite.
3167
:param test_id_list: A list of the test ids to keep as strings.
3168
:returns: the newly created suite
3170
condition = condition_id_in_list(test_id_list)
3171
result_suite = filter_suite_by_condition(suite, condition)
3175
def filter_suite_by_id_startswith(suite, start):
3176
"""Create a test suite by filtering another one.
3178
:param suite: The source suite.
3179
:param start: A list of string the test id must start with one of.
3180
:returns: the newly created suite
3182
condition = condition_id_startswith(start)
3183
result_suite = filter_suite_by_condition(suite, condition)
3187
def exclude_tests_by_re(suite, pattern):
3188
"""Create a test suite which excludes some tests from suite.
3190
:param suite: The suite to get tests from.
3191
:param pattern: A regular expression string. Test ids that match this
3192
pattern will be excluded from the result.
3193
:return: A TestSuite that contains all the tests from suite without the
3194
tests that matched pattern. The order of tests is the same as it was in
3197
return exclude_tests_by_condition(suite, condition_id_re(pattern))
3200
def preserve_input(something):
3201
"""A helper for performing test suite transformation chains.
3203
:param something: Anything you want to preserve.
3209
def randomize_suite(suite):
3210
"""Return a new TestSuite with suite's tests in random order.
3212
The tests in the input suite are flattened into a single suite in order to
3213
accomplish this. Any nested TestSuites are removed to provide global
3216
tests = list(iter_suite_tests(suite))
3217
random.shuffle(tests)
3218
return TestUtil.TestSuite(tests)
3221
def split_suite_by_condition(suite, condition):
3222
"""Split a test suite into two by a condition.
3224
:param suite: The suite to split.
3225
:param condition: The condition to match on. Tests that match this
3226
condition are returned in the first test suite, ones that do not match
3227
are in the second suite.
3228
:return: A tuple of two test suites, where the first contains tests from
3229
suite matching the condition, and the second contains the remainder
3230
from suite. The order within each output suite is the same as it was in
3235
for test in iter_suite_tests(suite):
3237
matched.append(test)
3239
did_not_match.append(test)
3240
return TestUtil.TestSuite(matched), TestUtil.TestSuite(did_not_match)
3243
def split_suite_by_re(suite, pattern):
3244
"""Split a test suite into two by a regular expression.
3246
:param suite: The suite to split.
3247
:param pattern: A regular expression string. Test ids that match this
3248
pattern will be in the first test suite returned, and the others in the
3249
second test suite returned.
3250
:return: A tuple of two test suites, where the first contains tests from
3251
suite matching pattern, and the second contains the remainder from
3252
suite. The order within each output suite is the same as it was in
3255
return split_suite_by_condition(suite, condition_id_re(pattern))
3258
def run_suite(suite, name='test', verbose=False, pattern=".*",
3259
stop_on_failure=False,
3260
transport=None, lsprof_timed=None, bench_history=None,
3261
matching_tests_first=None,
3264
exclude_pattern=None,
3267
suite_decorators=None,
3269
result_decorators=None,
3271
"""Run a test suite for bzr selftest.
3273
:param runner_class: The class of runner to use. Must support the
3274
constructor arguments passed by run_suite which are more than standard
3276
:return: A boolean indicating success.
3278
TestCase._gather_lsprof_in_benchmarks = lsprof_timed
3283
if runner_class is None:
3284
runner_class = TextTestRunner
3287
runner = runner_class(stream=stream,
3289
verbosity=verbosity,
3290
bench_history=bench_history,
3292
result_decorators=result_decorators,
3294
runner.stop_on_failure=stop_on_failure
3295
if isinstance(suite, unittest.TestSuite):
3296
# Empty out _tests list of passed suite and populate new TestSuite
3297
suite._tests[:], suite = [], TestSuite(suite)
3298
# built in decorator factories:
3300
random_order(random_seed, runner),
3301
exclude_tests(exclude_pattern),
3303
if matching_tests_first:
3304
decorators.append(tests_first(pattern))
3306
decorators.append(filter_tests(pattern))
3307
if suite_decorators:
3308
decorators.extend(suite_decorators)
3309
# tell the result object how many tests will be running: (except if
3310
# --parallel=fork is being used. Robert said he will provide a better
3311
# progress design later -- vila 20090817)
3312
if fork_decorator not in decorators:
3313
decorators.append(CountingDecorator)
3314
for decorator in decorators:
3315
suite = decorator(suite)
3317
# Done after test suite decoration to allow randomisation etc
3318
# to take effect, though that is of marginal benefit.
3320
stream.write("Listing tests only ...\n")
3321
for t in iter_suite_tests(suite):
3322
stream.write("%s\n" % (t.id()))
3324
result = runner.run(suite)
3326
return result.wasStrictlySuccessful()
3328
return result.wasSuccessful()
3331
# A registry where get() returns a suite decorator.
3332
parallel_registry = registry.Registry()
3335
def fork_decorator(suite):
3336
if getattr(os, "fork", None) is None:
3337
raise errors.BzrCommandError("platform does not support fork,"
3338
" try --parallel=subprocess instead.")
3339
concurrency = osutils.local_concurrency()
3340
if concurrency == 1:
3342
from testtools import ConcurrentTestSuite
3343
return ConcurrentTestSuite(suite, fork_for_tests)
3344
parallel_registry.register('fork', fork_decorator)
3347
def subprocess_decorator(suite):
3348
concurrency = osutils.local_concurrency()
3349
if concurrency == 1:
3351
from testtools import ConcurrentTestSuite
3352
return ConcurrentTestSuite(suite, reinvoke_for_tests)
3353
parallel_registry.register('subprocess', subprocess_decorator)
3356
def exclude_tests(exclude_pattern):
3357
"""Return a test suite decorator that excludes tests."""
3358
if exclude_pattern is None:
3359
return identity_decorator
3360
def decorator(suite):
3361
return ExcludeDecorator(suite, exclude_pattern)
3365
def filter_tests(pattern):
3367
return identity_decorator
3368
def decorator(suite):
3369
return FilterTestsDecorator(suite, pattern)
3373
def random_order(random_seed, runner):
3374
"""Return a test suite decorator factory for randomising tests order.
3376
:param random_seed: now, a string which casts to a long, or a long.
3377
:param runner: A test runner with a stream attribute to report on.
3379
if random_seed is None:
3380
return identity_decorator
3381
def decorator(suite):
3382
return RandomDecorator(suite, random_seed, runner.stream)
3386
def tests_first(pattern):
3388
return identity_decorator
3389
def decorator(suite):
3390
return TestFirstDecorator(suite, pattern)
3394
def identity_decorator(suite):
3399
class TestDecorator(TestUtil.TestSuite):
3400
"""A decorator for TestCase/TestSuite objects.
3402
Contains rather than flattening suite passed on construction
3405
def __init__(self, suite=None):
3406
super(TestDecorator, self).__init__()
3407
if suite is not None:
3410
# Don't need subclass run method with suite emptying
3411
run = unittest.TestSuite.run
3414
class CountingDecorator(TestDecorator):
3415
"""A decorator which calls result.progress(self.countTestCases)."""
3417
def run(self, result):
3418
progress_method = getattr(result, 'progress', None)
3419
if callable(progress_method):
3420
progress_method(self.countTestCases(), SUBUNIT_SEEK_SET)
3421
return super(CountingDecorator, self).run(result)
3424
class ExcludeDecorator(TestDecorator):
3425
"""A decorator which excludes test matching an exclude pattern."""
3427
def __init__(self, suite, exclude_pattern):
3428
super(ExcludeDecorator, self).__init__(
3429
exclude_tests_by_re(suite, exclude_pattern))
3432
class FilterTestsDecorator(TestDecorator):
3433
"""A decorator which filters tests to those matching a pattern."""
3435
def __init__(self, suite, pattern):
3436
super(FilterTestsDecorator, self).__init__(
3437
filter_suite_by_re(suite, pattern))
3440
class RandomDecorator(TestDecorator):
3441
"""A decorator which randomises the order of its tests."""
3443
def __init__(self, suite, random_seed, stream):
3444
random_seed = self.actual_seed(random_seed)
3445
stream.write("Randomizing test order using seed %s\n\n" %
3447
# Initialise the random number generator.
3448
random.seed(random_seed)
3449
super(RandomDecorator, self).__init__(randomize_suite(suite))
3452
def actual_seed(seed):
3454
# We convert the seed to a long to make it reuseable across
3455
# invocations (because the user can reenter it).
3456
return long(time.time())
3458
# Convert the seed to a long if we can
3461
except (TypeError, ValueError):
3466
class TestFirstDecorator(TestDecorator):
3467
"""A decorator which moves named tests to the front."""
3469
def __init__(self, suite, pattern):
3470
super(TestFirstDecorator, self).__init__()
3471
self.addTests(split_suite_by_re(suite, pattern))
3474
def partition_tests(suite, count):
3475
"""Partition suite into count lists of tests."""
3476
# This just assigns tests in a round-robin fashion. On one hand this
3477
# splits up blocks of related tests that might run faster if they shared
3478
# resources, but on the other it avoids assigning blocks of slow tests to
3479
# just one partition. So the slowest partition shouldn't be much slower
3481
partitions = [list() for i in range(count)]
3482
tests = iter_suite_tests(suite)
3483
for partition, test in itertools.izip(itertools.cycle(partitions), tests):
3484
partition.append(test)
3488
def workaround_zealous_crypto_random():
3489
"""Crypto.Random want to help us being secure, but we don't care here.
3491
This workaround some test failure related to the sftp server. Once paramiko
3492
stop using the controversial API in Crypto.Random, we may get rid of it.
3495
from Crypto.Random import atfork
3501
def fork_for_tests(suite):
3502
"""Take suite and start up one runner per CPU by forking()
3504
:return: An iterable of TestCase-like objects which can each have
3505
run(result) called on them to feed tests to result.
3507
concurrency = osutils.local_concurrency()
3509
from subunit import ProtocolTestCase
3510
from subunit.test_results import AutoTimingTestResultDecorator
3511
class TestInOtherProcess(ProtocolTestCase):
3512
# Should be in subunit, I think. RBC.
3513
def __init__(self, stream, pid):
3514
ProtocolTestCase.__init__(self, stream)
3517
def run(self, result):
3519
ProtocolTestCase.run(self, result)
3521
pid, status = os.waitpid(self.pid, 0)
3522
# GZ 2011-10-18: If status is nonzero, should report to the result
3523
# that something went wrong.
3525
test_blocks = partition_tests(suite, concurrency)
3526
# Clear the tests from the original suite so it doesn't keep them alive
3527
suite._tests[:] = []
3528
for process_tests in test_blocks:
3529
process_suite = TestUtil.TestSuite(process_tests)
3530
# Also clear each split list so new suite has only reference
3531
process_tests[:] = []
3532
c2pread, c2pwrite = os.pipe()
3536
stream = os.fdopen(c2pwrite, 'wb', 1)
3537
workaround_zealous_crypto_random()
3539
# Leave stderr and stdout open so we can see test noise
3540
# Close stdin so that the child goes away if it decides to
3541
# read from stdin (otherwise its a roulette to see what
3542
# child actually gets keystrokes for pdb etc).
3544
subunit_result = AutoTimingTestResultDecorator(
3545
SubUnitBzrProtocolClient(stream))
3546
process_suite.run(subunit_result)
3548
# Try and report traceback on stream, but exit with error even
3549
# if stream couldn't be created or something else goes wrong.
3550
# The traceback is formatted to a string and written in one go
3551
# to avoid interleaving lines from multiple failing children.
3553
stream.write(traceback.format_exc())
3559
stream = os.fdopen(c2pread, 'rb', 1)
3560
test = TestInOtherProcess(stream, pid)
3565
def reinvoke_for_tests(suite):
3566
"""Take suite and start up one runner per CPU using subprocess().
3568
:return: An iterable of TestCase-like objects which can each have
3569
run(result) called on them to feed tests to result.
3571
concurrency = osutils.local_concurrency()
3573
from subunit import ProtocolTestCase
3574
class TestInSubprocess(ProtocolTestCase):
3575
def __init__(self, process, name):
3576
ProtocolTestCase.__init__(self, process.stdout)
3577
self.process = process
3578
self.process.stdin.close()
3581
def run(self, result):
3583
ProtocolTestCase.run(self, result)
3586
os.unlink(self.name)
3587
# print "pid %d finished" % finished_process
3588
test_blocks = partition_tests(suite, concurrency)
3589
for process_tests in test_blocks:
3590
# ugly; currently reimplement rather than reuses TestCase methods.
3591
bzr_path = os.path.dirname(os.path.dirname(bzrlib.__file__))+'/bzr'
3592
if not os.path.isfile(bzr_path):
3593
# We are probably installed. Assume sys.argv is the right file
3594
bzr_path = sys.argv[0]
3595
bzr_path = [bzr_path]
3596
if sys.platform == "win32":
3597
# if we're on windows, we can't execute the bzr script directly
3598
bzr_path = [sys.executable] + bzr_path
3599
fd, test_list_file_name = tempfile.mkstemp()
3600
test_list_file = os.fdopen(fd, 'wb', 1)
3601
for test in process_tests:
3602
test_list_file.write(test.id() + '\n')
3603
test_list_file.close()
3605
argv = bzr_path + ['selftest', '--load-list', test_list_file_name,
3607
if '--no-plugins' in sys.argv:
3608
argv.append('--no-plugins')
3609
# stderr=subprocess.STDOUT would be ideal, but until we prevent
3610
# noise on stderr it can interrupt the subunit protocol.
3611
process = subprocess.Popen(argv, stdin=subprocess.PIPE,
3612
stdout=subprocess.PIPE,
3613
stderr=subprocess.PIPE,
3615
test = TestInSubprocess(process, test_list_file_name)
3618
os.unlink(test_list_file_name)
3623
class ProfileResult(testtools.ExtendedToOriginalDecorator):
3624
"""Generate profiling data for all activity between start and success.
3626
The profile data is appended to the test's _benchcalls attribute and can
3627
be accessed by the forwarded-to TestResult.
3629
While it might be cleaner do accumulate this in stopTest, addSuccess is
3630
where our existing output support for lsprof is, and this class aims to
3631
fit in with that: while it could be moved it's not necessary to accomplish
3632
test profiling, nor would it be dramatically cleaner.
3635
def startTest(self, test):
3636
self.profiler = bzrlib.lsprof.BzrProfiler()
3637
# Prevent deadlocks in tests that use lsprof: those tests will
3639
bzrlib.lsprof.BzrProfiler.profiler_block = 0
3640
self.profiler.start()
3641
testtools.ExtendedToOriginalDecorator.startTest(self, test)
3643
def addSuccess(self, test):
3644
stats = self.profiler.stop()
3646
calls = test._benchcalls
3647
except AttributeError:
3648
test._benchcalls = []
3649
calls = test._benchcalls
3650
calls.append(((test.id(), "", ""), stats))
3651
testtools.ExtendedToOriginalDecorator.addSuccess(self, test)
3653
def stopTest(self, test):
3654
testtools.ExtendedToOriginalDecorator.stopTest(self, test)
3655
self.profiler = None
3658
# Controlled by "bzr selftest -E=..." option
3659
# Currently supported:
3660
# -Eallow_debug Will no longer clear debug.debug_flags() so it
3661
# preserves any flags supplied at the command line.
3662
# -Edisable_lock_checks Turns errors in mismatched locks into simple prints
3663
# rather than failing tests. And no longer raise
3664
# LockContention when fctnl locks are not being used
3665
# with proper exclusion rules.
3666
# -Ethreads Will display thread ident at creation/join time to
3667
# help track thread leaks
3668
# -Euncollected_cases Display the identity of any test cases that weren't
3669
# deallocated after being completed.
3670
# -Econfig_stats Will collect statistics using addDetail
3671
selftest_debug_flags = set()
3674
def selftest(verbose=False, pattern=".*", stop_on_failure=True,
3676
test_suite_factory=None,
3679
matching_tests_first=None,
3682
exclude_pattern=None,
3688
suite_decorators=None,
3692
"""Run the whole test suite under the enhanced runner"""
3693
# XXX: Very ugly way to do this...
3694
# Disable warning about old formats because we don't want it to disturb
3695
# any blackbox tests.
3696
from bzrlib import repository
3697
repository._deprecation_warning_done = True
3699
global default_transport
3700
if transport is None:
3701
transport = default_transport
3702
old_transport = default_transport
3703
default_transport = transport
3704
global selftest_debug_flags
3705
old_debug_flags = selftest_debug_flags
3706
if debug_flags is not None:
3707
selftest_debug_flags = set(debug_flags)
3709
if load_list is None:
3712
keep_only = load_test_id_list(load_list)
3714
starting_with = [test_prefix_alias_registry.resolve_alias(start)
3715
for start in starting_with]
3716
if test_suite_factory is None:
3717
# Reduce loading time by loading modules based on the starting_with
3719
suite = test_suite(keep_only, starting_with)
3721
suite = test_suite_factory()
3723
# But always filter as requested.
3724
suite = filter_suite_by_id_startswith(suite, starting_with)
3725
result_decorators = []
3727
result_decorators.append(ProfileResult)
3728
return run_suite(suite, 'testbzr', verbose=verbose, pattern=pattern,
3729
stop_on_failure=stop_on_failure,
3730
transport=transport,
3731
lsprof_timed=lsprof_timed,
3732
bench_history=bench_history,
3733
matching_tests_first=matching_tests_first,
3734
list_only=list_only,
3735
random_seed=random_seed,
3736
exclude_pattern=exclude_pattern,
3738
runner_class=runner_class,
3739
suite_decorators=suite_decorators,
3741
result_decorators=result_decorators,
3744
default_transport = old_transport
3745
selftest_debug_flags = old_debug_flags
3748
def load_test_id_list(file_name):
3749
"""Load a test id list from a text file.
3751
The format is one test id by line. No special care is taken to impose
3752
strict rules, these test ids are used to filter the test suite so a test id
3753
that do not match an existing test will do no harm. This allows user to add
3754
comments, leave blank lines, etc.
3758
ftest = open(file_name, 'rt')
3760
if e.errno != errno.ENOENT:
3763
raise errors.NoSuchFile(file_name)
3765
for test_name in ftest.readlines():
3766
test_list.append(test_name.strip())
3771
def suite_matches_id_list(test_suite, id_list):
3772
"""Warns about tests not appearing or appearing more than once.
3774
:param test_suite: A TestSuite object.
3775
:param test_id_list: The list of test ids that should be found in
3778
:return: (absents, duplicates) absents is a list containing the test found
3779
in id_list but not in test_suite, duplicates is a list containing the
3780
test found multiple times in test_suite.
3782
When using a prefined test id list, it may occurs that some tests do not
3783
exist anymore or that some tests use the same id. This function warns the
3784
tester about potential problems in his workflow (test lists are volatile)
3785
or in the test suite itself (using the same id for several tests does not
3786
help to localize defects).
3788
# Build a dict counting id occurrences
3790
for test in iter_suite_tests(test_suite):
3792
tests[id] = tests.get(id, 0) + 1
3797
occurs = tests.get(id, 0)
3799
not_found.append(id)
3801
duplicates.append(id)
3803
return not_found, duplicates
3806
class TestIdList(object):
3807
"""Test id list to filter a test suite.
3809
Relying on the assumption that test ids are built as:
3810
<module>[.<class>.<method>][(<param>+)], <module> being in python dotted
3811
notation, this class offers methods to :
3812
- avoid building a test suite for modules not refered to in the test list,
3813
- keep only the tests listed from the module test suite.
3816
def __init__(self, test_id_list):
3817
# When a test suite needs to be filtered against us we compare test ids
3818
# for equality, so a simple dict offers a quick and simple solution.
3819
self.tests = dict().fromkeys(test_id_list, True)
3821
# While unittest.TestCase have ids like:
3822
# <module>.<class>.<method>[(<param+)],
3823
# doctest.DocTestCase can have ids like:
3826
# <module>.<function>
3827
# <module>.<class>.<method>
3829
# Since we can't predict a test class from its name only, we settle on
3830
# a simple constraint: a test id always begins with its module name.
3833
for test_id in test_id_list:
3834
parts = test_id.split('.')
3835
mod_name = parts.pop(0)
3836
modules[mod_name] = True
3838
mod_name += '.' + part
3839
modules[mod_name] = True
3840
self.modules = modules
3842
def refers_to(self, module_name):
3843
"""Is there tests for the module or one of its sub modules."""
3844
return self.modules.has_key(module_name)
3846
def includes(self, test_id):
3847
return self.tests.has_key(test_id)
3850
class TestPrefixAliasRegistry(registry.Registry):
3851
"""A registry for test prefix aliases.
3853
This helps implement shorcuts for the --starting-with selftest
3854
option. Overriding existing prefixes is not allowed but not fatal (a
3855
warning will be emitted).
3858
def register(self, key, obj, help=None, info=None,
3859
override_existing=False):
3860
"""See Registry.register.
3862
Trying to override an existing alias causes a warning to be emitted,
3863
not a fatal execption.
3866
super(TestPrefixAliasRegistry, self).register(
3867
key, obj, help=help, info=info, override_existing=False)
3869
actual = self.get(key)
3871
'Test prefix alias %s is already used for %s, ignoring %s'
3872
% (key, actual, obj))
3874
def resolve_alias(self, id_start):
3875
"""Replace the alias by the prefix in the given string.
3877
Using an unknown prefix is an error to help catching typos.
3879
parts = id_start.split('.')
3881
parts[0] = self.get(parts[0])
3883
raise errors.BzrCommandError(
3884
'%s is not a known test prefix alias' % parts[0])
3885
return '.'.join(parts)
3888
test_prefix_alias_registry = TestPrefixAliasRegistry()
3889
"""Registry of test prefix aliases."""
3892
# This alias allows to detect typos ('bzrlin.') by making all valid test ids
3893
# appear prefixed ('bzrlib.' is "replaced" by 'bzrlib.').
3894
test_prefix_alias_registry.register('bzrlib', 'bzrlib')
3896
# Obvious highest levels prefixes, feel free to add your own via a plugin
3897
test_prefix_alias_registry.register('bd', 'bzrlib.doc')
3898
test_prefix_alias_registry.register('bu', 'bzrlib.utils')
3899
test_prefix_alias_registry.register('bt', 'bzrlib.tests')
3900
test_prefix_alias_registry.register('bb', 'bzrlib.tests.blackbox')
3901
test_prefix_alias_registry.register('bp', 'bzrlib.plugins')
3904
def _test_suite_testmod_names():
3905
"""Return the standard list of test module names to test."""
3908
'bzrlib.tests.blackbox',
3909
'bzrlib.tests.commands',
3910
'bzrlib.tests.per_branch',
3911
'bzrlib.tests.per_bzrdir',
3912
'bzrlib.tests.per_controldir',
3913
'bzrlib.tests.per_controldir_colo',
3914
'bzrlib.tests.per_foreign_vcs',
3915
'bzrlib.tests.per_interrepository',
3916
'bzrlib.tests.per_intertree',
3917
'bzrlib.tests.per_inventory',
3918
'bzrlib.tests.per_interbranch',
3919
'bzrlib.tests.per_lock',
3920
'bzrlib.tests.per_merger',
3921
'bzrlib.tests.per_transport',
3922
'bzrlib.tests.per_tree',
3923
'bzrlib.tests.per_pack_repository',
3924
'bzrlib.tests.per_repository',
3925
'bzrlib.tests.per_repository_chk',
3926
'bzrlib.tests.per_repository_reference',
3927
'bzrlib.tests.per_repository_vf',
3928
'bzrlib.tests.per_uifactory',
3929
'bzrlib.tests.per_versionedfile',
3930
'bzrlib.tests.per_workingtree',
3931
'bzrlib.tests.test__annotator',
3932
'bzrlib.tests.test__bencode',
3933
'bzrlib.tests.test__btree_serializer',
3934
'bzrlib.tests.test__chk_map',
3935
'bzrlib.tests.test__dirstate_helpers',
3936
'bzrlib.tests.test__groupcompress',
3937
'bzrlib.tests.test__known_graph',
3938
'bzrlib.tests.test__rio',
3939
'bzrlib.tests.test__simple_set',
3940
'bzrlib.tests.test__static_tuple',
3941
'bzrlib.tests.test__walkdirs_win32',
3942
'bzrlib.tests.test_ancestry',
3943
'bzrlib.tests.test_annotate',
3944
'bzrlib.tests.test_api',
3945
'bzrlib.tests.test_atomicfile',
3946
'bzrlib.tests.test_bad_files',
3947
'bzrlib.tests.test_bisect_multi',
3948
'bzrlib.tests.test_branch',
3949
'bzrlib.tests.test_branchbuilder',
3950
'bzrlib.tests.test_btree_index',
3951
'bzrlib.tests.test_bugtracker',
3952
'bzrlib.tests.test_bundle',
3953
'bzrlib.tests.test_bzrdir',
3954
'bzrlib.tests.test__chunks_to_lines',
3955
'bzrlib.tests.test_cache_utf8',
3956
'bzrlib.tests.test_chk_map',
3957
'bzrlib.tests.test_chk_serializer',
3958
'bzrlib.tests.test_chunk_writer',
3959
'bzrlib.tests.test_clean_tree',
3960
'bzrlib.tests.test_cleanup',
3961
'bzrlib.tests.test_cmdline',
3962
'bzrlib.tests.test_commands',
3963
'bzrlib.tests.test_commit',
3964
'bzrlib.tests.test_commit_merge',
3965
'bzrlib.tests.test_config',
3966
'bzrlib.tests.test_conflicts',
3967
'bzrlib.tests.test_controldir',
3968
'bzrlib.tests.test_counted_lock',
3969
'bzrlib.tests.test_crash',
3970
'bzrlib.tests.test_decorators',
3971
'bzrlib.tests.test_delta',
3972
'bzrlib.tests.test_debug',
3973
'bzrlib.tests.test_diff',
3974
'bzrlib.tests.test_directory_service',
3975
'bzrlib.tests.test_dirstate',
3976
'bzrlib.tests.test_email_message',
3977
'bzrlib.tests.test_eol_filters',
3978
'bzrlib.tests.test_errors',
3979
'bzrlib.tests.test_estimate_compressed_size',
3980
'bzrlib.tests.test_export',
3981
'bzrlib.tests.test_export_pot',
3982
'bzrlib.tests.test_extract',
3983
'bzrlib.tests.test_features',
3984
'bzrlib.tests.test_fetch',
3985
'bzrlib.tests.test_fixtures',
3986
'bzrlib.tests.test_fifo_cache',
3987
'bzrlib.tests.test_filters',
3988
'bzrlib.tests.test_filter_tree',
3989
'bzrlib.tests.test_ftp_transport',
3990
'bzrlib.tests.test_foreign',
3991
'bzrlib.tests.test_generate_docs',
3992
'bzrlib.tests.test_generate_ids',
3993
'bzrlib.tests.test_globbing',
3994
'bzrlib.tests.test_gpg',
3995
'bzrlib.tests.test_graph',
3996
'bzrlib.tests.test_groupcompress',
3997
'bzrlib.tests.test_hashcache',
3998
'bzrlib.tests.test_help',
3999
'bzrlib.tests.test_hooks',
4000
'bzrlib.tests.test_http',
4001
'bzrlib.tests.test_http_response',
4002
'bzrlib.tests.test_https_ca_bundle',
4003
'bzrlib.tests.test_https_urllib',
4004
'bzrlib.tests.test_i18n',
4005
'bzrlib.tests.test_identitymap',
4006
'bzrlib.tests.test_ignores',
4007
'bzrlib.tests.test_index',
4008
'bzrlib.tests.test_import_tariff',
4009
'bzrlib.tests.test_info',
4010
'bzrlib.tests.test_inv',
4011
'bzrlib.tests.test_inventory_delta',
4012
'bzrlib.tests.test_knit',
4013
'bzrlib.tests.test_lazy_import',
4014
'bzrlib.tests.test_lazy_regex',
4015
'bzrlib.tests.test_library_state',
4016
'bzrlib.tests.test_lock',
4017
'bzrlib.tests.test_lockable_files',
4018
'bzrlib.tests.test_lockdir',
4019
'bzrlib.tests.test_log',
4020
'bzrlib.tests.test_lru_cache',
4021
'bzrlib.tests.test_lsprof',
4022
'bzrlib.tests.test_mail_client',
4023
'bzrlib.tests.test_matchers',
4024
'bzrlib.tests.test_memorytree',
4025
'bzrlib.tests.test_merge',
4026
'bzrlib.tests.test_merge3',
4027
'bzrlib.tests.test_merge_core',
4028
'bzrlib.tests.test_merge_directive',
4029
'bzrlib.tests.test_mergetools',
4030
'bzrlib.tests.test_missing',
4031
'bzrlib.tests.test_msgeditor',
4032
'bzrlib.tests.test_multiparent',
4033
'bzrlib.tests.test_mutabletree',
4034
'bzrlib.tests.test_nonascii',
4035
'bzrlib.tests.test_options',
4036
'bzrlib.tests.test_osutils',
4037
'bzrlib.tests.test_osutils_encodings',
4038
'bzrlib.tests.test_pack',
4039
'bzrlib.tests.test_patch',
4040
'bzrlib.tests.test_patches',
4041
'bzrlib.tests.test_permissions',
4042
'bzrlib.tests.test_plugins',
4043
'bzrlib.tests.test_progress',
4044
'bzrlib.tests.test_pyutils',
4045
'bzrlib.tests.test_read_bundle',
4046
'bzrlib.tests.test_reconcile',
4047
'bzrlib.tests.test_reconfigure',
4048
'bzrlib.tests.test_registry',
4049
'bzrlib.tests.test_remote',
4050
'bzrlib.tests.test_rename_map',
4051
'bzrlib.tests.test_repository',
4052
'bzrlib.tests.test_revert',
4053
'bzrlib.tests.test_revision',
4054
'bzrlib.tests.test_revisionspec',
4055
'bzrlib.tests.test_revisiontree',
4056
'bzrlib.tests.test_rio',
4057
'bzrlib.tests.test_rules',
4058
'bzrlib.tests.test_url_policy_open',
4059
'bzrlib.tests.test_sampler',
4060
'bzrlib.tests.test_scenarios',
4061
'bzrlib.tests.test_script',
4062
'bzrlib.tests.test_selftest',
4063
'bzrlib.tests.test_serializer',
4064
'bzrlib.tests.test_setup',
4065
'bzrlib.tests.test_sftp_transport',
4066
'bzrlib.tests.test_shelf',
4067
'bzrlib.tests.test_shelf_ui',
4068
'bzrlib.tests.test_smart',
4069
'bzrlib.tests.test_smart_add',
4070
'bzrlib.tests.test_smart_request',
4071
'bzrlib.tests.test_smart_signals',
4072
'bzrlib.tests.test_smart_transport',
4073
'bzrlib.tests.test_smtp_connection',
4074
'bzrlib.tests.test_source',
4075
'bzrlib.tests.test_ssh_transport',
4076
'bzrlib.tests.test_status',
4077
'bzrlib.tests.test_store',
4078
'bzrlib.tests.test_strace',
4079
'bzrlib.tests.test_subsume',
4080
'bzrlib.tests.test_switch',
4081
'bzrlib.tests.test_symbol_versioning',
4082
'bzrlib.tests.test_tag',
4083
'bzrlib.tests.test_test_server',
4084
'bzrlib.tests.test_testament',
4085
'bzrlib.tests.test_textfile',
4086
'bzrlib.tests.test_textmerge',
4087
'bzrlib.tests.test_cethread',
4088
'bzrlib.tests.test_timestamp',
4089
'bzrlib.tests.test_trace',
4090
'bzrlib.tests.test_transactions',
4091
'bzrlib.tests.test_transform',
4092
'bzrlib.tests.test_transport',
4093
'bzrlib.tests.test_transport_log',
4094
'bzrlib.tests.test_tree',
4095
'bzrlib.tests.test_treebuilder',
4096
'bzrlib.tests.test_treeshape',
4097
'bzrlib.tests.test_tsort',
4098
'bzrlib.tests.test_tuned_gzip',
4099
'bzrlib.tests.test_ui',
4100
'bzrlib.tests.test_uncommit',
4101
'bzrlib.tests.test_upgrade',
4102
'bzrlib.tests.test_upgrade_stacked',
4103
'bzrlib.tests.test_urlutils',
4104
'bzrlib.tests.test_utextwrap',
4105
'bzrlib.tests.test_version',
4106
'bzrlib.tests.test_version_info',
4107
'bzrlib.tests.test_versionedfile',
4108
'bzrlib.tests.test_vf_search',
4109
'bzrlib.tests.test_weave',
4110
'bzrlib.tests.test_whitebox',
4111
'bzrlib.tests.test_win32utils',
4112
'bzrlib.tests.test_workingtree',
4113
'bzrlib.tests.test_workingtree_4',
4114
'bzrlib.tests.test_wsgi',
4115
'bzrlib.tests.test_xml',
4119
def _test_suite_modules_to_doctest():
4120
"""Return the list of modules to doctest."""
4122
# GZ 2009-03-31: No docstrings with -OO so there's nothing to doctest
4126
'bzrlib.branchbuilder',
4127
'bzrlib.decorators',
4129
'bzrlib.iterablefile',
4134
'bzrlib.symbol_versioning',
4136
'bzrlib.tests.fixtures',
4138
'bzrlib.transport.http',
4139
'bzrlib.version_info_formats.format_custom',
4143
def test_suite(keep_only=None, starting_with=None):
4144
"""Build and return TestSuite for the whole of bzrlib.
4146
:param keep_only: A list of test ids limiting the suite returned.
4148
:param starting_with: An id limiting the suite returned to the tests
4151
This function can be replaced if you need to change the default test
4152
suite on a global basis, but it is not encouraged.
4155
loader = TestUtil.TestLoader()
4157
if keep_only is not None:
4158
id_filter = TestIdList(keep_only)
4160
# We take precedence over keep_only because *at loading time* using
4161
# both options means we will load less tests for the same final result.
4162
def interesting_module(name):
4163
for start in starting_with:
4165
# Either the module name starts with the specified string
4166
name.startswith(start)
4167
# or it may contain tests starting with the specified string
4168
or start.startswith(name)
4172
loader = TestUtil.FilteredByModuleTestLoader(interesting_module)
4174
elif keep_only is not None:
4175
loader = TestUtil.FilteredByModuleTestLoader(id_filter.refers_to)
4176
def interesting_module(name):
4177
return id_filter.refers_to(name)
4180
loader = TestUtil.TestLoader()
4181
def interesting_module(name):
4182
# No filtering, all modules are interesting
4185
suite = loader.suiteClass()
4187
# modules building their suite with loadTestsFromModuleNames
4188
suite.addTest(loader.loadTestsFromModuleNames(_test_suite_testmod_names()))
4190
for mod in _test_suite_modules_to_doctest():
4191
if not interesting_module(mod):
4192
# No tests to keep here, move along
4195
# note that this really does mean "report only" -- doctest
4196
# still runs the rest of the examples
4197
doc_suite = IsolatedDocTestSuite(
4198
mod, optionflags=doctest.REPORT_ONLY_FIRST_FAILURE)
4199
except ValueError, e:
4200
print '**failed to get doctest for: %s\n%s' % (mod, e)
4202
if len(doc_suite._tests) == 0:
4203
raise errors.BzrError("no doctests found in %s" % (mod,))
4204
suite.addTest(doc_suite)
4206
default_encoding = sys.getdefaultencoding()
4207
for name, plugin in _mod_plugin.plugins().items():
4208
if not interesting_module(plugin.module.__name__):
4210
plugin_suite = plugin.test_suite()
4211
# We used to catch ImportError here and turn it into just a warning,
4212
# but really if you don't have --no-plugins this should be a failure.
4213
# mbp 20080213 - see http://bugs.launchpad.net/bugs/189771
4214
if plugin_suite is None:
4215
plugin_suite = plugin.load_plugin_tests(loader)
4216
if plugin_suite is not None:
4217
suite.addTest(plugin_suite)
4218
if default_encoding != sys.getdefaultencoding():
4220
'Plugin "%s" tried to reset default encoding to: %s', name,
4221
sys.getdefaultencoding())
4223
sys.setdefaultencoding(default_encoding)
4225
if keep_only is not None:
4226
# Now that the referred modules have loaded their tests, keep only the
4228
suite = filter_suite_by_id_list(suite, id_filter)
4229
# Do some sanity checks on the id_list filtering
4230
not_found, duplicates = suite_matches_id_list(suite, keep_only)
4232
# The tester has used both keep_only and starting_with, so he is
4233
# already aware that some tests are excluded from the list, there
4234
# is no need to tell him which.
4237
# Some tests mentioned in the list are not in the test suite. The
4238
# list may be out of date, report to the tester.
4239
for id in not_found:
4240
trace.warning('"%s" not found in the test suite', id)
4241
for id in duplicates:
4242
trace.warning('"%s" is used as an id by several tests', id)
4247
def multiply_scenarios(*scenarios):
4248
"""Multiply two or more iterables of scenarios.
4250
It is safe to pass scenario generators or iterators.
4252
:returns: A list of compound scenarios: the cross-product of all
4253
scenarios, with the names concatenated and the parameters
4256
return reduce(_multiply_two_scenarios, map(list, scenarios))
4259
def _multiply_two_scenarios(scenarios_left, scenarios_right):
4260
"""Multiply two sets of scenarios.
4262
:returns: the cartesian product of the two sets of scenarios, that is
4263
a scenario for every possible combination of a left scenario and a
4267
('%s,%s' % (left_name, right_name),
4268
dict(left_dict.items() + right_dict.items()))
4269
for left_name, left_dict in scenarios_left
4270
for right_name, right_dict in scenarios_right]
4273
def multiply_tests(tests, scenarios, result):
4274
"""Multiply tests_list by scenarios into result.
4276
This is the core workhorse for test parameterisation.
4278
Typically the load_tests() method for a per-implementation test suite will
4279
call multiply_tests and return the result.
4281
:param tests: The tests to parameterise.
4282
:param scenarios: The scenarios to apply: pairs of (scenario_name,
4283
scenario_param_dict).
4284
:param result: A TestSuite to add created tests to.
4286
This returns the passed in result TestSuite with the cross product of all
4287
the tests repeated once for each scenario. Each test is adapted by adding
4288
the scenario name at the end of its id(), and updating the test object's
4289
__dict__ with the scenario_param_dict.
4291
>>> import bzrlib.tests.test_sampler
4292
>>> r = multiply_tests(
4293
... bzrlib.tests.test_sampler.DemoTest('test_nothing'),
4294
... [('one', dict(param=1)),
4295
... ('two', dict(param=2))],
4296
... TestUtil.TestSuite())
4297
>>> tests = list(iter_suite_tests(r))
4301
'bzrlib.tests.test_sampler.DemoTest.test_nothing(one)'
4307
for test in iter_suite_tests(tests):
4308
apply_scenarios(test, scenarios, result)
4312
def apply_scenarios(test, scenarios, result):
4313
"""Apply the scenarios in scenarios to test and add to result.
4315
:param test: The test to apply scenarios to.
4316
:param scenarios: An iterable of scenarios to apply to test.
4318
:seealso: apply_scenario
4320
for scenario in scenarios:
4321
result.addTest(apply_scenario(test, scenario))
4325
def apply_scenario(test, scenario):
4326
"""Copy test and apply scenario to it.
4328
:param test: A test to adapt.
4329
:param scenario: A tuple describing the scenarion.
4330
The first element of the tuple is the new test id.
4331
The second element is a dict containing attributes to set on the
4333
:return: The adapted test.
4335
new_id = "%s(%s)" % (test.id(), scenario[0])
4336
new_test = clone_test(test, new_id)
4337
for name, value in scenario[1].items():
4338
setattr(new_test, name, value)
4342
def clone_test(test, new_id):
4343
"""Clone a test giving it a new id.
4345
:param test: The test to clone.
4346
:param new_id: The id to assign to it.
4347
:return: The new test.
4349
new_test = copy.copy(test)
4350
new_test.id = lambda: new_id
4351
# XXX: Workaround <https://bugs.launchpad.net/testtools/+bug/637725>, which
4352
# causes cloned tests to share the 'details' dict. This makes it hard to
4353
# read the test output for parameterized tests, because tracebacks will be
4354
# associated with irrelevant tests.
4356
details = new_test._TestCase__details
4357
except AttributeError:
4358
# must be a different version of testtools than expected. Do nothing.
4361
# Reset the '__details' dict.
4362
new_test._TestCase__details = {}
4366
def permute_tests_for_extension(standard_tests, loader, py_module_name,
4368
"""Helper for permutating tests against an extension module.
4370
This is meant to be used inside a modules 'load_tests()' function. It will
4371
create 2 scenarios, and cause all tests in the 'standard_tests' to be run
4372
against both implementations. Setting 'test.module' to the appropriate
4373
module. See bzrlib.tests.test__chk_map.load_tests as an example.
4375
:param standard_tests: A test suite to permute
4376
:param loader: A TestLoader
4377
:param py_module_name: The python path to a python module that can always
4378
be loaded, and will be considered the 'python' implementation. (eg
4379
'bzrlib._chk_map_py')
4380
:param ext_module_name: The python path to an extension module. If the
4381
module cannot be loaded, a single test will be added, which notes that
4382
the module is not available. If it can be loaded, all standard_tests
4383
will be run against that module.
4384
:return: (suite, feature) suite is a test-suite that has all the permuted
4385
tests. feature is the Feature object that can be used to determine if
4386
the module is available.
4389
from bzrlib.tests.features import ModuleAvailableFeature
4390
py_module = pyutils.get_named_object(py_module_name)
4392
('python', {'module': py_module}),
4394
suite = loader.suiteClass()
4395
feature = ModuleAvailableFeature(ext_module_name)
4396
if feature.available():
4397
scenarios.append(('C', {'module': feature.module}))
4399
# the compiled module isn't available, so we add a failing test
4400
class FailWithoutFeature(TestCase):
4401
def test_fail(self):
4402
self.requireFeature(feature)
4403
suite.addTest(loader.loadTestsFromTestCase(FailWithoutFeature))
4404
result = multiply_tests(standard_tests, scenarios, suite)
4405
return result, feature
4408
def _rmtree_temp_dir(dirname, test_id=None):
4409
# If LANG=C we probably have created some bogus paths
4410
# which rmtree(unicode) will fail to delete
4411
# so make sure we are using rmtree(str) to delete everything
4412
# except on win32, where rmtree(str) will fail
4413
# since it doesn't have the property of byte-stream paths
4414
# (they are either ascii or mbcs)
4415
if sys.platform == 'win32':
4416
# make sure we are using the unicode win32 api
4417
dirname = unicode(dirname)
4419
dirname = dirname.encode(sys.getfilesystemencoding())
4421
osutils.rmtree(dirname)
4423
# We don't want to fail here because some useful display will be lost
4424
# otherwise. Polluting the tmp dir is bad, but not giving all the
4425
# possible info to the test runner is even worse.
4427
ui.ui_factory.clear_term()
4428
sys.stderr.write('\nWhile running: %s\n' % (test_id,))
4429
# Ugly, but the last thing we want here is fail, so bear with it.
4430
printable_e = str(e).decode(osutils.get_user_encoding(), 'replace'
4431
).encode('ascii', 'replace')
4432
sys.stderr.write('Unable to remove testing dir %s\n%s'
4433
% (os.path.basename(dirname), printable_e))
4436
def probe_unicode_in_user_encoding():
4437
"""Try to encode several unicode strings to use in unicode-aware tests.
4438
Return first successfull match.
4440
:return: (unicode value, encoded plain string value) or (None, None)
4442
possible_vals = [u'm\xb5', u'\xe1', u'\u0410']
4443
for uni_val in possible_vals:
4445
str_val = uni_val.encode(osutils.get_user_encoding())
4446
except UnicodeEncodeError:
4447
# Try a different character
4450
return uni_val, str_val
4454
def probe_bad_non_ascii(encoding):
4455
"""Try to find [bad] character with code [128..255]
4456
that cannot be decoded to unicode in some encoding.
4457
Return None if all non-ascii characters is valid
4460
for i in xrange(128, 256):
4463
char.decode(encoding)
4464
except UnicodeDecodeError:
4469
# Only define SubUnitBzrRunner if subunit is available.
4471
from subunit import TestProtocolClient
4472
from subunit.test_results import AutoTimingTestResultDecorator
4473
class SubUnitBzrProtocolClient(TestProtocolClient):
4475
def stopTest(self, test):
4476
super(SubUnitBzrProtocolClient, self).stopTest(test)
4477
_clear__type_equality_funcs(test)
4479
def addSuccess(self, test, details=None):
4480
# The subunit client always includes the details in the subunit
4481
# stream, but we don't want to include it in ours.
4482
if details is not None and 'log' in details:
4484
return super(SubUnitBzrProtocolClient, self).addSuccess(
4487
class SubUnitBzrRunner(TextTestRunner):
4488
def run(self, test):
4489
result = AutoTimingTestResultDecorator(
4490
SubUnitBzrProtocolClient(self.stream))
4497
# API compatibility for old plugins; see bug 892622.
4500
'HTTPServerFeature',
4501
'ModuleAvailableFeature',
4502
'HTTPSServerFeature', 'SymlinkFeature', 'HardlinkFeature',
4503
'OsFifoFeature', 'UnicodeFilenameFeature',
4504
'ByteStringNamedFilesystem', 'UTF8Filesystem',
4505
'BreakinFeature', 'CaseInsCasePresFilenameFeature',
4506
'CaseInsensitiveFilesystemFeature', 'case_sensitive_filesystem_feature',
4507
'posix_permissions_feature',
4509
globals()[name] = _CompatabilityThunkFeature(
4510
symbol_versioning.deprecated_in((2, 5, 0)),
4511
'bzrlib.tests', name,
4512
name, 'bzrlib.tests.features')
4515
for (old_name, new_name) in [
4516
('UnicodeFilename', 'UnicodeFilenameFeature'),
4518
globals()[name] = _CompatabilityThunkFeature(
4519
symbol_versioning.deprecated_in((2, 5, 0)),
4520
'bzrlib.tests', old_name,
4521
new_name, 'bzrlib.tests.features')
added
removed
bzrlib/tests/__init__.py
