PageRenderTime 9ms CodeModel.GetById 2ms app.highlight 5ms RepoModel.GetById 1ms app.codeStats 0ms

/thirdparty/breakpad/third_party/protobuf/protobuf/gtest/test/gtest_throw_on_failure_test.py

http://github.com/tomahawk-player/tomahawk
Python | 171 lines | 137 code | 2 blank | 32 comment | 1 complexity | 83327bfafa99660b0547b510da8ceed5 MD5 | raw file
  1#!/usr/bin/env python
  2#
  3# Copyright 2009, Google Inc.
  4# All rights reserved.
  5#
  6# Redistribution and use in source and binary forms, with or without
  7# modification, are permitted provided that the following conditions are
  8# met:
  9#
 10#     * Redistributions of source code must retain the above copyright
 11# notice, this list of conditions and the following disclaimer.
 12#     * Redistributions in binary form must reproduce the above
 13# copyright notice, this list of conditions and the following disclaimer
 14# in the documentation and/or other materials provided with the
 15# distribution.
 16#     * Neither the name of Google Inc. nor the names of its
 17# contributors may be used to endorse or promote products derived from
 18# this software without specific prior written permission.
 19#
 20# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 21# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 22# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 23# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 24# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 25# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 26# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 27# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 28# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 29# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 30# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 31
 32"""Tests Google Test's throw-on-failure mode with exceptions disabled.
 33
 34This script invokes gtest_throw_on_failure_test_ (a program written with
 35Google Test) with different environments and command line flags.
 36"""
 37
 38__author__ = 'wan@google.com (Zhanyong Wan)'
 39
 40import os
 41import gtest_test_utils
 42
 43
 44# Constants.
 45
 46# The command line flag for enabling/disabling the throw-on-failure mode.
 47THROW_ON_FAILURE = 'gtest_throw_on_failure'
 48
 49# Path to the gtest_throw_on_failure_test_ program, compiled with
 50# exceptions disabled.
 51EXE_PATH = gtest_test_utils.GetTestExecutablePath(
 52    'gtest_throw_on_failure_test_')
 53
 54
 55# Utilities.
 56
 57
 58def SetEnvVar(env_var, value):
 59  """Sets an environment variable to a given value; unsets it when the
 60  given value is None.
 61  """
 62
 63  env_var = env_var.upper()
 64  if value is not None:
 65    os.environ[env_var] = value
 66  elif env_var in os.environ:
 67    del os.environ[env_var]
 68
 69
 70def Run(command):
 71  """Runs a command; returns True/False if its exit code is/isn't 0."""
 72
 73  print 'Running "%s". . .' % ' '.join(command)
 74  p = gtest_test_utils.Subprocess(command)
 75  return p.exited and p.exit_code == 0
 76
 77
 78# The tests.  TODO(wan@google.com): refactor the class to share common
 79# logic with code in gtest_break_on_failure_unittest.py.
 80class ThrowOnFailureTest(gtest_test_utils.TestCase):
 81  """Tests the throw-on-failure mode."""
 82
 83  def RunAndVerify(self, env_var_value, flag_value, should_fail):
 84    """Runs gtest_throw_on_failure_test_ and verifies that it does
 85    (or does not) exit with a non-zero code.
 86
 87    Args:
 88      env_var_value:    value of the GTEST_BREAK_ON_FAILURE environment
 89                        variable; None if the variable should be unset.
 90      flag_value:       value of the --gtest_break_on_failure flag;
 91                        None if the flag should not be present.
 92      should_fail:      True iff the program is expected to fail.
 93    """
 94
 95    SetEnvVar(THROW_ON_FAILURE, env_var_value)
 96
 97    if env_var_value is None:
 98      env_var_value_msg = ' is not set'
 99    else:
100      env_var_value_msg = '=' + env_var_value
101
102    if flag_value is None:
103      flag = ''
104    elif flag_value == '0':
105      flag = '--%s=0' % THROW_ON_FAILURE
106    else:
107      flag = '--%s' % THROW_ON_FAILURE
108
109    command = [EXE_PATH]
110    if flag:
111      command.append(flag)
112
113    if should_fail:
114      should_or_not = 'should'
115    else:
116      should_or_not = 'should not'
117
118    failed = not Run(command)
119
120    SetEnvVar(THROW_ON_FAILURE, None)
121
122    msg = ('when %s%s, an assertion failure in "%s" %s cause a non-zero '
123           'exit code.' %
124           (THROW_ON_FAILURE, env_var_value_msg, ' '.join(command),
125            should_or_not))
126    self.assert_(failed == should_fail, msg)
127
128  def testDefaultBehavior(self):
129    """Tests the behavior of the default mode."""
130
131    self.RunAndVerify(env_var_value=None, flag_value=None, should_fail=False)
132
133  def testThrowOnFailureEnvVar(self):
134    """Tests using the GTEST_THROW_ON_FAILURE environment variable."""
135
136    self.RunAndVerify(env_var_value='0',
137                      flag_value=None,
138                      should_fail=False)
139    self.RunAndVerify(env_var_value='1',
140                      flag_value=None,
141                      should_fail=True)
142
143  def testThrowOnFailureFlag(self):
144    """Tests using the --gtest_throw_on_failure flag."""
145
146    self.RunAndVerify(env_var_value=None,
147                      flag_value='0',
148                      should_fail=False)
149    self.RunAndVerify(env_var_value=None,
150                      flag_value='1',
151                      should_fail=True)
152
153  def testThrowOnFailureFlagOverridesEnvVar(self):
154    """Tests that --gtest_throw_on_failure overrides GTEST_THROW_ON_FAILURE."""
155
156    self.RunAndVerify(env_var_value='0',
157                      flag_value='0',
158                      should_fail=False)
159    self.RunAndVerify(env_var_value='0',
160                      flag_value='1',
161                      should_fail=True)
162    self.RunAndVerify(env_var_value='1',
163                      flag_value='0',
164                      should_fail=False)
165    self.RunAndVerify(env_var_value='1',
166                      flag_value='1',
167                      should_fail=True)
168
169
170if __name__ == '__main__':
171  gtest_test_utils.Main()