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#!/usr/bin/env python

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"""Unit test utilities for Google C++ Mocking Framework."""

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

import os

import sys

# Determines path to gtest_test_utils and imports it.

SCRIPT_DIR = os.path.dirname(__file__) or '.'

# isdir resolves symbolic links.

gtest_tests_util_dir = os.path.join(SCRIPT_DIR, '../gtest/test')

if os.path.isdir(gtest_tests_util_dir):

  GTEST_TESTS_UTIL_DIR = gtest_tests_util_dir

else:

  GTEST_TESTS_UTIL_DIR = os.path.join(SCRIPT_DIR, '../../gtest/test')

sys.path.append(GTEST_TESTS_UTIL_DIR)

import gtest_test_utils  # pylint: disable-msg=C6204

def GetSourceDir():

  """Returns the absolute path of the directory where the .py files are."""

  return gtest_test_utils.GetSourceDir()

def GetTestExecutablePath(executable_name):

  """Returns the absolute path of the test binary given its name.

  The function will print a message and abort the program if the resulting file

  doesn't exist.

  Args:

    executable_name: name of the test binary that the test script runs.

  Returns:

    The absolute path of the test binary.

  """

  return gtest_test_utils.GetTestExecutablePath(executable_name)

def GetExitStatus(exit_code):

  """Returns the argument to exit(), or -1 if exit() wasn't called.

  Args:

    exit_code: the result value of os.system(command).

  """

  if os.name == 'nt':

    # On Windows, os.WEXITSTATUS() doesn't work and os.system() returns

    # the argument to exit() directly.

    return exit_code

  else:

    # On Unix, os.WEXITSTATUS() must be used to extract the exit status

    # from the result of os.system().

    if os.WIFEXITED(exit_code):

      return os.WEXITSTATUS(exit_code)

    else:

      return -1

# Suppresses the "Invalid const name" lint complaint

# pylint: disable-msg=C6409

# Exposes utilities from gtest_test_utils.

Subprocess = gtest_test_utils.Subprocess

TestCase = gtest_test_utils.TestCase

environ = gtest_test_utils.environ

SetEnvVar = gtest_test_utils.SetEnvVar

PREMATURE_EXIT_FILE_ENV_VAR = gtest_test_utils.PREMATURE_EXIT_FILE_ENV_VAR

# pylint: enable-msg=C6409

def Main():

  """Runs the unit test."""

  gtest_test_utils.Main()