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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,
)
from bzrlib.tests import TestCaseInTempDir, TestCase
from bzrlib.trace import mutter, mutter_callsite, report_exception
def _format_exception():
"""Format an exception as it would normally be displayed to the user"""
buf = StringIO()
report_exception(sys.exc_info(), buf)
return buf.getvalue()
class TestTrace(TestCase):
def test_format_sys_exception(self):
try:
raise NotImplementedError, "time travel"
except NotImplementedError:
pass
err = _format_exception()
self.assertEqualDiff(err.splitlines()[0],
'bzr: ERROR: exceptions.NotImplementedError: time travel')
self.assertContainsRe(err,
r'File.*test_trace.py')
def test_format_interrupt_exception(self):
try:
raise KeyboardInterrupt()
except KeyboardInterrupt:
# XXX: Some risk that a *real* keyboard interrupt won't be seen
pass
msg = _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 = _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 = _format_exception()
def test_format_exception(self):
"""Short formatting of bzr exceptions"""
try:
raise errors.NotBranchError('wibble')
except errors.NotBranchError:
pass
msg = _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 = _format_exception()
self.assertEquals(msg, "bzr: broken pipe\n")
else:
self.fail("expected error not raised")
def test_mutter_callsite_1(self):
"""mutter_callsite can capture 1 level of stack frame."""
mutter_callsite(1, "foo %s", "a string")
log = self._get_log(keep_log_file=True)
# begin with the message
self.assertStartsWith(log, 'foo a string\nCalled from:\n')
# should show two frame: this frame and the one above
self.assertContainsRe(log,
'test_trace\.py", line \d+, in test_mutter_callsite_1\n')
# this frame should be the final one
self.assertEndsWith(log, ' "a string")\n')
def test_mutter_callsite_2(self):
"""mutter_callsite can capture 2 levels of stack frame."""
mutter_callsite(2, "foo %s", "a string")
log = self._get_log(keep_log_file=True)
# begin with the message
self.assertStartsWith(log, 'foo a string\nCalled from:\n')
# should show two frame: this frame and the one above
self.assertContainsRe(log,
'test_trace.py", line \d+, in test_mutter_callsite_2\n')
# this frame should be the final one
self.assertEndsWith(log, ' "a string")\n')
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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