Subversion Repositories s80186

#!/usr/bin/env python

#

# Copyright 2008, Google Inc.

# All rights reserved.

#

# Redistribution and use in source and binary forms, with or without

# modification, are permitted provided that the following conditions are

# met:

#

#     * Redistributions of source code must retain the above copyright

# notice, this list of conditions and the following disclaimer.

#     * Redistributions in binary form must reproduce the above

# copyright notice, this list of conditions and the following disclaimer

# in the documentation and/or other materials provided with the

# distribution.

#     * Neither the name of Google Inc. nor the names of its

# contributors may be used to endorse or promote products derived from

# this software without specific prior written permission.

#

# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS

# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT

# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR

# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT

# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,

# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT

# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,

# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY

# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE

# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

"""Verifies that Google Test correctly parses environment variables."""

__author__ = 'wan@google.com (Zhanyong Wan)'

import os

import gtest_test_utils

IS_WINDOWS = os.name == 'nt'

IS_LINUX = os.name == 'posix' and os.uname()[0] == 'Linux'

COMMAND = gtest_test_utils.GetTestExecutablePath('gtest_env_var_test_')

environ = os.environ.copy()

def AssertEq(expected, actual):

  if expected != actual:

    print('Expected: %s' % (expected,))

    print('  Actual: %s' % (actual,))

    raise AssertionError

def SetEnvVar(env_var, value):

  """Sets the env variable to 'value'; unsets it when 'value' is None."""

  if value is not None:

    environ[env_var] = value

  elif env_var in environ:

    del environ[env_var]

def GetFlag(flag):

  """Runs gtest_env_var_test_ and returns its output."""

  args = [COMMAND]

  if flag is not None:

    args += [flag]

  return gtest_test_utils.Subprocess(args, env=environ).output

def TestFlag(flag, test_val, default_val):

  """Verifies that the given flag is affected by the corresponding env var."""

  env_var = 'GTEST_' + flag.upper()

  SetEnvVar(env_var, test_val)

  AssertEq(test_val, GetFlag(flag))

  SetEnvVar(env_var, None)

  AssertEq(default_val, GetFlag(flag))

class GTestEnvVarTest(gtest_test_utils.TestCase):

  def testEnvVarAffectsFlag(self):

    """Tests that environment variable should affect the corresponding flag."""

    TestFlag('break_on_failure', '1', '0')

    TestFlag('color', 'yes', 'auto')

    TestFlag('filter', 'FooTest.Bar', '*')

    SetEnvVar('XML_OUTPUT_FILE', None) # For 'output' test

    TestFlag('output', 'xml:tmp/foo.xml', '')

    TestFlag('print_time', '0', '1')

    TestFlag('repeat', '999', '1')

    TestFlag('throw_on_failure', '1', '0')

    TestFlag('death_test_style', 'threadsafe', 'fast')

    TestFlag('catch_exceptions', '0', '1')

    if IS_LINUX:

      TestFlag('death_test_use_fork', '1', '0')

      TestFlag('stack_trace_depth', '0', '100')

  def testXmlOutputFile(self):

    """Tests that $XML_OUTPUT_FILE affects the output flag."""

    SetEnvVar('GTEST_OUTPUT', None)

    SetEnvVar('XML_OUTPUT_FILE', 'tmp/bar.xml')

    AssertEq('xml:tmp/bar.xml', GetFlag('output'))

  def testXmlOutputFileOverride(self):

    """Tests that $XML_OUTPUT_FILE is overridden by $GTEST_OUTPUT"""

    SetEnvVar('GTEST_OUTPUT', 'xml:tmp/foo.xml')

    SetEnvVar('XML_OUTPUT_FILE', 'tmp/bar.xml')

    AssertEq('xml:tmp/foo.xml', GetFlag('output'))

if __name__ == '__main__':

  gtest_test_utils.Main()