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# Copyright (C) 2005 by Canonical Ltd
# Authors: Robert Collins <robert.collins@canonical.com>
#
# 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"""
import os
import sys
from bzrlib.tests import TestCaseInTempDir, TestCase
from bzrlib.trace import format_exception_short, mutter
from bzrlib.errors import NotBranchError, BzrError, BzrNewError
class TestTrace(TestCase):
def test_format_sys_exception(self):
"""Short formatting of exceptions"""
try:
raise NotImplementedError, "time travel"
except NotImplementedError:
pass
error_lines = format_exception_short(sys.exc_info()).splitlines()
self.assertEqualDiff(error_lines[0],
'exceptions.NotImplementedError: time travel')
self.assertContainsRe(error_lines[1],
r'^ at .*trace\.py line \d+$')
self.assertContainsRe(error_lines[2],
r'^ in test_format_sys_exception$')
def test_format_exception(self):
"""Short formatting of exceptions"""
try:
raise NotBranchError, 'wibble'
except NotBranchError:
pass
msg = format_exception_short(sys.exc_info())
self.assertEqualDiff(msg, 'Not a branch: wibble')
def test_format_old_exception(self):
# format a class that doesn't descend from BzrNewError;
# remove this test when everything is unified there
self.assertFalse(issubclass(BzrError, BzrNewError))
try:
raise BzrError('some old error')
except BzrError:
pass
msg = format_exception_short(sys.exc_info())
self.assertEqualDiff(msg, 'some old error')
def test_trace_unicode(self):
"""Write Unicode to trace log"""
self.log(u'the unicode character for benzene is \N{BENZENE RING}')
self.assertContainsRe('the unicode character',
self._get_log())
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')
# TODO: jam 20051227 mutter() doesn't flush the log file, and
# self._get_log() opens the file directly and reads it.
# So we need to manually flush the log file
import bzrlib.trace
bzrlib.trace._trace_file.flush()
log = self._get_log()
self.assertContainsRe(log, 'Writing a greek mu')
self.assertContainsRe(log, 'UnicodeError')
self.assertContainsRe(log, "'But fails in an ascii string")
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