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/firmware/tests/gtest-1.4.0/test/gtest_env_var_test.py

http://github.com/makerbot/G3Firmware
Python | 103 lines | 62 code | 10 blank | 31 comment | 2 complexity | 071fbf1f8f8dfe70443bbe16e85cbc22 MD5 | raw file
  1#!/usr/bin/env python
  2#
  3# Copyright 2008, 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"""Verifies that Google Test correctly parses environment variables."""
 33
 34__author__ = 'wan@google.com (Zhanyong Wan)'
 35
 36import os
 37import gtest_test_utils
 38
 39
 40IS_WINDOWS = os.name == 'nt'
 41IS_LINUX = os.name == 'posix' and os.uname()[0] == 'Linux'
 42
 43COMMAND = gtest_test_utils.GetTestExecutablePath('gtest_env_var_test_')
 44
 45
 46def AssertEq(expected, actual):
 47  if expected != actual:
 48    print 'Expected: %s' % (expected,)
 49    print '  Actual: %s' % (actual,)
 50    raise AssertionError
 51
 52
 53def SetEnvVar(env_var, value):
 54  """Sets the env variable to 'value'; unsets it when 'value' is None."""
 55
 56  if value is not None:
 57    os.environ[env_var] = value
 58  elif env_var in os.environ:
 59    del os.environ[env_var]
 60
 61
 62def GetFlag(flag):
 63  """Runs gtest_env_var_test_ and returns its output."""
 64
 65  args = [COMMAND]
 66  if flag is not None:
 67    args += [flag]
 68  return gtest_test_utils.Subprocess(args).output
 69
 70
 71def TestFlag(flag, test_val, default_val):
 72  """Verifies that the given flag is affected by the corresponding env var."""
 73
 74  env_var = 'GTEST_' + flag.upper()
 75  SetEnvVar(env_var, test_val)
 76  AssertEq(test_val, GetFlag(flag))
 77  SetEnvVar(env_var, None)
 78  AssertEq(default_val, GetFlag(flag))
 79
 80
 81class GTestEnvVarTest(gtest_test_utils.TestCase):
 82  def testEnvVarAffectsFlag(self):
 83    """Tests that environment variable should affect the corresponding flag."""
 84
 85    TestFlag('break_on_failure', '1', '0')
 86    TestFlag('color', 'yes', 'auto')
 87    TestFlag('filter', 'FooTest.Bar', '*')
 88    TestFlag('output', 'xml:tmp/foo.xml', '')
 89    TestFlag('print_time', '0', '1')
 90    TestFlag('repeat', '999', '1')
 91    TestFlag('throw_on_failure', '1', '0')
 92    TestFlag('death_test_style', 'threadsafe', 'fast')
 93
 94    if IS_WINDOWS:
 95      TestFlag('catch_exceptions', '1', '0')
 96
 97    if IS_LINUX:
 98      TestFlag('death_test_use_fork', '1', '0')
 99      TestFlag('stack_trace_depth', '0', '100')
100
101
102if __name__ == '__main__':
103  gtest_test_utils.Main()