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Viewing changes to bzrlib/tests/test_strace.py

  • Committer: John Arbash Meinel
  • Date: 2008-08-18 22:34:21 UTC
  • mto: (3606.5.6 1.6)
  • mto: This revision was merged to the branch mainline in revision 3641.
  • Revision ID: john@arbash-meinel.com-20080818223421-todjny24vj4faj4t
Add tests for the fetching behavior.

The proper parameter passed is 'unordered' add an assert for it, and
fix callers that were passing 'unsorted' instead.
Add tests that we make the right get_record_stream call based
on the value of _fetch_uses_deltas.
Fix the fetch request for signatures.

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bzrlib/tests/test_strace.py
 
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# Copyright (C) 2007 Canonical Ltd
 
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#   Authors: Robert Collins <robert.collins@canonical.com>
 
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#
 
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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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#
 
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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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#
 
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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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 
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"""Tests for the strace-invoking support."""
 
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import errno
 
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import subprocess
 
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import threading
 
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from bzrlib import (
 
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    tests,
 
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    )
 
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from bzrlib.strace import StraceFeature, strace_detailed, StraceResult
 
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class TestStraceFeature(tests.TestCaseWithTransport):
 
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    def test_strace_detection(self):
 
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        """Strace is available if its runnable."""
 
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        try:
 
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            proc = subprocess.Popen(['strace'],
 
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                stderr=subprocess.PIPE,
 
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                stdout=subprocess.PIPE)
 
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            proc.communicate()
 
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            found_strace = True
 
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        except OSError, e:
 
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            if e.errno == errno.ENOENT:
 
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                # strace is not installed
 
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                found_strace = False
 
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            else:
 
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                raise
 
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        self.assertEqual(found_strace, StraceFeature.available())
 
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class TestStrace(tests.TestCaseWithTransport):
 
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    _test_needs_features = [StraceFeature]
 
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    def _check_threads(self):
 
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        # For bug #226769, it was decided that the strace tests should not be
 
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        # run when more than one thread is active. A lot of tests are currently
 
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        # leaking threads for good or bad reasons, once they are fixed or
 
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        # strace itself is fixed (bug #103133), we can get rid of the
 
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        # restriction.
 
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        active = threading.activeCount()
 
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        if active > 1: # There is always the main thread at least
 
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            raise tests.KnownFailure(
 
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                '%d active threads, bug #103133 needs to be fixed.' % active)
 
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    def test_strace_callable_is_called(self):
 
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        self._check_threads()
 
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        output = []
 
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        def function(positional, *args, **kwargs):
 
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            output.append((positional, args, kwargs))
 
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        strace_detailed(function, ["a", "b"], {"c": "c"},
 
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                        follow_children=False)
 
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        self.assertEqual([("a", ("b",), {"c":"c"})], output)
 
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    def test_strace_callable_result(self):
 
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        self._check_threads()
 
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        def function():
 
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            return "foo"
 
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        result, strace_result = strace_detailed(function,[], {},
 
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                                                follow_children=False)
 
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        self.assertEqual("foo", result)
 
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        self.assertIsInstance(strace_result, StraceResult)
 
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    def test_strace_result_has_raw_log(self):
 
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        """Checks that a reasonable raw strace log was found by strace."""
 
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        self._check_threads()
 
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        def function():
 
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            self.build_tree(['myfile'])
 
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        unused, result = strace_detailed(function, [], {},
 
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                                         follow_children=False)
 
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        self.assertContainsRe(result.raw_log, 'myfile')