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# Copyright (C) 2005, 2006 Canonical Ltd
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
# "weren't nothing promised to you. do i look like i got a promise face?"
"""Tests for trace library"""
from cStringIO import StringIO
import errno
import os
import sys
from bzrlib import (
errors,
plugin,
trace,
)
from bzrlib.tests import TestCaseInTempDir, TestCase, TestSkipped
from bzrlib.trace import mutter, report_exception
def _format_exception():
"""Format an exception as it would normally be displayed to the user"""
buf = StringIO()
report = report_exception(sys.exc_info(), buf)
return buf.getvalue(), report
class TestTrace(TestCase):
def test_format_sys_exception_no_apport(self):
try:
raise NotImplementedError, "time travel"
except NotImplementedError:
pass
old_use_apport = trace._use_apport
trace._use_apport = False
try:
err, report = _format_exception()
finally:
trace._use_apport = old_use_apport
self.assertEqual(None, report)
self.assertEqualDiff(err.splitlines()[0],
'bzr: ERROR: exceptions.NotImplementedError: time travel')
self.assertContainsRe(err,
r'File.*test_trace.py')
def test_format_sys_exception_apport(self):
try:
import problem_report
except ImportError:
raise TestSkipped('Apport not installed')
try:
raise NotImplementedError, "time travel"
except NotImplementedError:
pass
old_argv = sys.argv
sys.argv = ['foo', 'bar', 'quux']
try:
err, (report, report_filename) = _format_exception()
finally:
sys.argv = old_argv
self.assertIsInstance(report, problem_report.ProblemReport)
# the error formatting is checked by the blackbox ui command.
# here we need to check that the file on disk - the problem report
# will contain the right information.
# the report needs:
# - the command line.
# - package data
# - plugins list
# - backtrace.
# check the report logical data.
self.assertEqual('foo bar quux', report['CommandLine'])
known_plugins = ' '.join(plugin.all_plugins())
self.assertEqual(known_plugins, report['BzrPlugins'])
self.assertContainsRe(report['Traceback'], r'Traceback')
# Stock apport facilities we just invoke, no need to test their
# content
self.assertNotEqual(None, report['Package'])
self.assertNotEqual(None, report['Uname'])
# check the file 'looks' like a good file, because we dont
# want apport changes to break the user interface.
report_file = file(report_filename, 'r')
try:
report_text = report_file.read()
finally:
report_file.close()
# so we check this by looking across two fields and they should
# be just \n separated.
self.assertTrue('ProblemType: Crash\n'
'BzrPlugins: ' in report_text)
def test_format_interrupt_exception(self):
try:
raise KeyboardInterrupt()
except KeyboardInterrupt:
# XXX: Some risk that a *real* keyboard interrupt won't be seen
# We can probably detect that by checking for the specific line
# that we raise from in the test being in the backtrace.
pass
msg, report = _format_exception()
self.assertTrue(len(msg) > 0)
self.assertEqualDiff(msg, 'bzr: interrupted\n')
def test_format_os_error(self):
try:
file('nosuchfile22222')
except (OSError, IOError):
pass
msg, report = _format_exception()
self.assertContainsRe(msg, r'^bzr: ERROR: \[Errno .*\] No such file.*nosuchfile')
def test_format_unicode_error(self):
try:
raise errors.BzrCommandError(u'argument foo\xb5 does not exist')
except errors.BzrCommandError:
pass
msg, report = _format_exception()
def test_format_exception(self):
"""Short formatting of bzr exceptions"""
try:
raise errors.NotBranchError('wibble')
except errors.NotBranchError:
pass
msg, report = _format_exception()
self.assertTrue(len(msg) > 0)
self.assertEqualDiff(msg, 'bzr: ERROR: Not a branch: wibble\n')
def test_trace_unicode(self):
"""Write Unicode to trace log"""
self.log(u'the unicode character for benzene is \N{BENZENE RING}')
self.assertContainsRe(self._get_log(keep_log_file=True),
"the unicode character for benzene is")
def test_trace_argument_unicode(self):
"""Write a Unicode argument to the trace log"""
mutter(u'the unicode character for benzene is %s', u'\N{BENZENE RING}')
self.assertContainsRe(self._get_log(keep_log_file=True),
'the unicode character')
def test_trace_argument_utf8(self):
"""Write a Unicode argument to the trace log"""
mutter(u'the unicode character for benzene is %s',
u'\N{BENZENE RING}'.encode('utf-8'))
self.assertContainsRe(self._get_log(keep_log_file=True),
'the unicode character')
def test_report_broken_pipe(self):
try:
raise IOError(errno.EPIPE, 'broken pipe foofofo')
except IOError, e:
msg, report = _format_exception()
self.assertEquals(msg, "bzr: broken pipe\n")
else:
self.fail("expected error not raised")
def test_mutter_never_fails(self):
# Even if the decode/encode stage fails, mutter should not
# raise an exception
mutter(u'Writing a greek mu (\xb5) works in a unicode string')
mutter('But fails in an ascii string \xb5')
mutter('and in an ascii argument: %s', '\xb5')
log = self._get_log(keep_log_file=True)
self.assertContainsRe(log, 'Writing a greek mu')
self.assertContainsRe(log, "But fails in an ascii string")
self.assertContainsRe(log, u"ascii argument: \xb5")
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