Removes unused scons-related scripts; makes gtest_nc_test compatible with Clang.

git-svn-id: http://googletest.googlecode.com/svn/trunk@449 861a406c-534a-0410-8894-cb66d6ee9925

3 files changed, 12 insertions, 1146 deletions

diff --git a/test/gtest_nc_test.py b/test/gtest_nc_test.py
index 06ffb3f..bf09234 100755
--- a/test/gtest_nc_test.py
+++ b/test/gtest_nc_test.py
@@ -72,19 +72,27 @@ class GTestNCTest(unittest.TestCase):
        [r'Setup_should_be_spelled_SetUp']),
 
       ('CATCHES_WRONG_CASE_IN_TYPED_TEST_P',
-       [r'BarTest.*was not declared']),
+       [r'BarTest.*was not declared',        # GCC
+        r'undeclared identifier .*BarTest',  # Clang
+        ]),
 
       ('CATCHES_WRONG_CASE_IN_REGISTER_TYPED_TEST_CASE_P',
-       [r'BarTest.*was not declared']),
+       [r'BarTest.*was not declared',        # GCC
+        r'undeclared identifier .*BarTest',  # Clang
+        ]),
 
       ('CATCHES_WRONG_CASE_IN_INSTANTIATE_TYPED_TEST_CASE_P',
-       [r'BarTest.*not declared']),
+       [r'BarTest.*not declared',            # GCC
+        r'undeclared identifier .*BarTest',  # Clang
+        ]),
 
       ('CATCHES_INSTANTIATE_TYPED_TESET_CASE_P_WITH_SAME_NAME_PREFIX',
        [r'redefinition of.*My.*FooTest']),
 
       ('STATIC_ASSERT_TYPE_EQ_IS_NOT_A_TYPE',
-       [r'StaticAssertTypeEq.* does not name a type']),
+       [r'StaticAssertTypeEq.* does not name a type',  # GCC
+        r'requires a type.*\n.*StaticAssertTypeEq',    # Clang
+        ]),
 
       ('STATIC_ASSERT_TYPE_EQ_WORKS_IN_NAMESPACE',
        [r'StaticAssertTypeEq.*int.*const int']),
diff --git a/test/run_tests_util.py b/test/run_tests_util.py
deleted file mode 100755
index a123569..0000000
--- a/test/run_tests_util.py
+++ /dev/null
@@ -1,466 +0,0 @@
-# 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.
-
-"""Provides facilities for running SCons-built Google Test/Mock tests."""
-
-
-import optparse
-import os
-import re
-import sets
-import sys
-
-try:
-  # subrocess module is a preferable way to invoke subprocesses but it may
-  # not be available on MacOS X 10.4.
-  # Suppresses the 'Import not at the top of the file' lint complaint.
-  # pylint: disable-msg=C6204
-  import subprocess
-except ImportError:
-  subprocess = None
-
-HELP_MSG = """Runs the specified tests for %(proj)s.
-
-SYNOPSIS
-       run_tests.py [OPTION]... [BUILD_DIR]... [TEST]...
-
-DESCRIPTION
-       Runs the specified tests (either binary or Python), and prints a
-       summary of the results. BUILD_DIRS will be used to search for the
-       binaries. If no TESTs are specified, all binary tests found in
-       BUILD_DIRs and all Python tests found in the directory test/ (in the
-       %(proj)s root) are run.
-
-       TEST is a name of either a binary or a Python test. A binary test is
-       an executable file named *_test or *_unittest (with the .exe
-       extension on Windows) A Python test is a script named *_test.py or
-       *_unittest.py.
-
-OPTIONS
-       -h, --help
-              Print this help message.
-       -c CONFIGURATIONS
-              Specify build directories via build configurations.
-              CONFIGURATIONS is either a comma-separated list of build
-              configurations or 'all'. Each configuration is equivalent to
-              adding 'scons/build/<configuration>/%(proj)s/scons' to BUILD_DIRs.
-              Specifying -c=all is equivalent to providing all directories
-              listed in KNOWN BUILD DIRECTORIES section below.
-       -a
-              Equivalent to -c=all
-       -b
-              Equivalent to -c=all with the exception that the script will not
-              fail if some of the KNOWN BUILD DIRECTORIES do not exists; the
-              script will simply not run the tests there. 'b' stands for
-              'built directories'.
-
-RETURN VALUE
-       Returns 0 if all tests are successful; otherwise returns 1.
-
-EXAMPLES
-       run_tests.py
-              Runs all tests for the default build configuration.
-       run_tests.py -a
-              Runs all tests with binaries in KNOWN BUILD DIRECTORIES.
-       run_tests.py -b
-              Runs all tests in KNOWN BUILD DIRECTORIES that have been
-              built.
-       run_tests.py foo/
-              Runs all tests in the foo/ directory and all Python tests in
-              the directory test. The Python tests are instructed to look
-              for binaries in foo/.
-       run_tests.py bar_test.exe test/baz_test.exe foo/ bar/
-              Runs foo/bar_test.exe, bar/bar_test.exe, foo/baz_test.exe, and
-              bar/baz_test.exe.
-       run_tests.py foo bar test/foo_test.py
-              Runs test/foo_test.py twice instructing it to look for its
-              test binaries in the directories foo and bar,
-              correspondingly.
-
-KNOWN BUILD DIRECTORIES
-      run_tests.py knows about directories where the SCons build script
-      deposits its products. These are the directories where run_tests.py
-      will be looking for its binaries. Currently, %(proj)s's SConstruct file
-      defines them as follows (the default build directory is the first one
-      listed in each group):
-      On Windows:
-              <%(proj)s root>/scons/build/win-dbg8/%(proj)s/scons/
-              <%(proj)s root>/scons/build/win-opt8/%(proj)s/scons/
-      On Mac:
-              <%(proj)s root>/scons/build/mac-dbg/%(proj)s/scons/
-              <%(proj)s root>/scons/build/mac-opt/%(proj)s/scons/
-      On other platforms:
-              <%(proj)s root>/scons/build/dbg/%(proj)s/scons/
-              <%(proj)s root>/scons/build/opt/%(proj)s/scons/"""
-
-IS_WINDOWS = os.name == 'nt'
-IS_MAC = os.name == 'posix' and os.uname()[0] == 'Darwin'
-IS_CYGWIN = os.name == 'posix' and 'CYGWIN' in os.uname()[0]
-
-# Definition of CONFIGS must match that of the build directory names in the
-# SConstruct script. The first list item is the default build configuration.
-if IS_WINDOWS:
-  CONFIGS = ('win-dbg8', 'win-opt8')
-elif IS_MAC:
-  CONFIGS = ('mac-dbg', 'mac-opt')
-else:
-  CONFIGS = ('dbg', 'opt')
-
-if IS_WINDOWS or IS_CYGWIN:
-  PYTHON_TEST_REGEX = re.compile(r'_(unit)?test\.py$', re.IGNORECASE)
-  BINARY_TEST_REGEX = re.compile(r'_(unit)?test(\.exe)?$', re.IGNORECASE)
-  BINARY_TEST_SEARCH_REGEX = re.compile(r'_(unit)?test\.exe$', re.IGNORECASE)
-else:
-  PYTHON_TEST_REGEX = re.compile(r'_(unit)?test\.py$')
-  BINARY_TEST_REGEX = re.compile(r'_(unit)?test$')
-  BINARY_TEST_SEARCH_REGEX = BINARY_TEST_REGEX
-
-
-def _GetGtestBuildDir(injected_os, script_dir, config):
-  """Calculates path to the Google Test SCons build directory."""
-
-  return injected_os.path.normpath(injected_os.path.join(script_dir,
-                                                         'scons/build',
-                                                         config,
-                                                         'gtest/scons'))
-
-
-def _GetConfigFromBuildDir(build_dir):
-  """Extracts the configuration name from the build directory."""
-
-  # We don't want to depend on build_dir containing the correct path
-  # separators.
-  m = re.match(r'.*[\\/]([^\\/]+)[\\/][^\\/]+[\\/]scons[\\/]?$', build_dir)
-  if m:
-    return m.group(1)
-  else:
-    print >>sys.stderr, ('%s is an invalid build directory that does not '
-                         'correspond to any configuration.' % (build_dir,))
-    return ''
-
-
-# All paths in this script are either absolute or relative to the current
-# working directory, unless otherwise specified.
-class TestRunner(object):
-  """Provides facilities for running Python and binary tests for Google Test."""
-
-  def __init__(self,
-               script_dir,
-               build_dir_var_name='BUILD_DIR',
-               injected_os=os,
-               injected_subprocess=subprocess,
-               injected_build_dir_finder=_GetGtestBuildDir):
-    """Initializes a TestRunner instance.
-
-    Args:
-      script_dir:                File path to the calling script.
-      build_dir_var_name:        Name of the env variable used to pass the
-                                 the build directory path to the invoked
-                                 tests.
-      injected_os:               standard os module or a mock/stub for
-                                 testing.
-      injected_subprocess:       standard subprocess module or a mock/stub
-                                 for testing
-      injected_build_dir_finder: function that determines the path to
-                                 the build directory.
-    """
-
-    self.os = injected_os
-    self.subprocess = injected_subprocess
-    self.build_dir_finder = injected_build_dir_finder
-    self.build_dir_var_name = build_dir_var_name
-    self.script_dir = script_dir
-
-  def _GetBuildDirForConfig(self, config):
-    """Returns the build directory for a given configuration."""
-
-    return self.build_dir_finder(self.os, self.script_dir, config)
-
-  def _Run(self, args):
-    """Runs the executable with given args (args[0] is the executable name).
-
-    Args:
-      args: Command line arguments for the process.
-
-    Returns:
-      Process's exit code if it exits normally, or -signal if the process is
-      killed by a signal.
-    """
-
-    if self.subprocess:
-      return self.subprocess.Popen(args).wait()
-    else:
-      return self.os.spawnv(self.os.P_WAIT, args[0], args)
-
-  def _RunBinaryTest(self, test):
-    """Runs the binary test given its path.
-
-    Args:
-      test: Path to the test binary.
-
-    Returns:
-      Process's exit code if it exits normally, or -signal if the process is
-      killed by a signal.
-    """
-
-    return self._Run([test])
-
-  def _RunPythonTest(self, test, build_dir):
-    """Runs the Python test script with the specified build directory.
-
-    Args:
-      test: Path to the test's Python script.
-      build_dir: Path to the directory where the test binary is to be found.
-
-    Returns:
-      Process's exit code if it exits normally, or -signal if the process is
-      killed by a signal.
-    """
-
-    old_build_dir = self.os.environ.get(self.build_dir_var_name)
-
-    try:
-      self.os.environ[self.build_dir_var_name] = build_dir
-
-      # If this script is run on a Windows machine that has no association
-      # between the .py extension and a python interpreter, simply passing
-      # the script name into subprocess.Popen/os.spawn will not work.
-      print 'Running %s . . .' % (test,)
-      return self._Run([sys.executable, test])
-
-    finally:
-      if old_build_dir is None:
-        del self.os.environ[self.build_dir_var_name]
-      else:
-        self.os.environ[self.build_dir_var_name] = old_build_dir
-
-  def _FindFilesByRegex(self, directory, regex):
-    """Returns files in a directory whose names match a regular expression.
-
-    Args:
-      directory: Path to the directory to search for files.
-      regex: Regular expression to filter file names.
-
-    Returns:
-      The list of the paths to the files in the directory.
-    """
-
-    return [self.os.path.join(directory, file_name)
-            for file_name in self.os.listdir(directory)
-            if re.search(regex, file_name)]
-
-  # TODO(vladl@google.com): Implement parsing of scons/SConscript to run all
-  # tests defined there when no tests are specified.
-  # TODO(vladl@google.com): Update the docstring after the code is changed to
-  # try to test all builds defined in scons/SConscript.
-  def GetTestsToRun(self,
-                    args,
-                    named_configurations,
-                    built_configurations,
-                    available_configurations=CONFIGS,
-                    python_tests_to_skip=None):
-    """Determines what tests should be run.
-
-    Args:
-      args: The list of non-option arguments from the command line.
-      named_configurations: The list of configurations specified via -c or -a.
-      built_configurations: True if -b has been specified.
-      available_configurations: a list of configurations available on the
-                            current platform, injectable for testing.
-      python_tests_to_skip: a collection of (configuration, python test name)s
-                            that need to be skipped.
-
-    Returns:
-      A tuple with 2 elements: the list of Python tests to run and the list of
-      binary tests to run.
-    """
-
-    if named_configurations == 'all':
-      named_configurations = ','.join(available_configurations)
-
-    normalized_args = [self.os.path.normpath(arg) for arg in args]
-
-    # A final list of build directories which will be searched for the test
-    # binaries. First, add directories specified directly on the command
-    # line.
-    build_dirs = filter(self.os.path.isdir, normalized_args)
-
-    # Adds build directories specified via their build configurations using
-    # the -c or -a options.
-    if named_configurations:
-      build_dirs += [self._GetBuildDirForConfig(config)
-                     for config in named_configurations.split(',')]
-
-    # Adds KNOWN BUILD DIRECTORIES if -b is specified.
-    if built_configurations:
-      build_dirs += [self._GetBuildDirForConfig(config)
-                     for config in available_configurations
-                     if self.os.path.isdir(self._GetBuildDirForConfig(config))]
-
-    # If no directories were specified either via -a, -b, -c, or directly, use
-    # the default configuration.
-    elif not build_dirs:
-      build_dirs = [self._GetBuildDirForConfig(available_configurations[0])]
-
-    # Makes sure there are no duplications.
-    build_dirs = sets.Set(build_dirs)
-
-    errors_found = False
-    listed_python_tests = []  # All Python tests listed on the command line.
-    listed_binary_tests = []  # All binary tests listed on the command line.
-
-    test_dir = self.os.path.normpath(self.os.path.join(self.script_dir, 'test'))
-
-    # Sifts through non-directory arguments fishing for any Python or binary
-    # tests and detecting errors.
-    for argument in sets.Set(normalized_args) - build_dirs:
-      if re.search(PYTHON_TEST_REGEX, argument):
-        python_path = self.os.path.join(test_dir,
-                                        self.os.path.basename(argument))
-        if self.os.path.isfile(python_path):
-          listed_python_tests.append(python_path)
-        else:
-          sys.stderr.write('Unable to find Python test %s' % argument)
-          errors_found = True
-      elif re.search(BINARY_TEST_REGEX, argument):
-        # This script also accepts binary test names prefixed with test/ for
-        # the convenience of typing them (can use path completions in the
-        # shell).  Strips test/ prefix from the binary test names.
-        listed_binary_tests.append(self.os.path.basename(argument))
-      else:
-        sys.stderr.write('%s is neither test nor build directory' % argument)
-        errors_found = True
-
-    if errors_found:
-      return None
-
-    user_has_listed_tests = listed_python_tests or listed_binary_tests
-
-    if user_has_listed_tests:
-      selected_python_tests = listed_python_tests
-    else:
-      selected_python_tests = self._FindFilesByRegex(test_dir,
-                                                     PYTHON_TEST_REGEX)
-
-    # TODO(vladl@google.com): skip unbuilt Python tests when -b is specified.
-    python_test_pairs = []
-    for directory in build_dirs:
-      for test in selected_python_tests:
-        config = _GetConfigFromBuildDir(directory)
-        file_name = os.path.basename(test)
-        if python_tests_to_skip and (config, file_name) in python_tests_to_skip:
-          print ('NOTE: %s is skipped for configuration %s, as it does not '
-                 'work there.' % (file_name, config))
-        else:
-          python_test_pairs.append((directory, test))
-
-    binary_test_pairs = []
-    for directory in build_dirs:
-      if user_has_listed_tests:
-        binary_test_pairs.extend(
-            [(directory, self.os.path.join(directory, test))
-             for test in listed_binary_tests])
-      else:
-        tests = self._FindFilesByRegex(directory, BINARY_TEST_SEARCH_REGEX)
-        binary_test_pairs.extend([(directory, test) for test in tests])
-
-    return (python_test_pairs, binary_test_pairs)
-
-  def RunTests(self, python_tests, binary_tests):
-    """Runs Python and binary tests and reports results to the standard output.
-
-    Args:
-      python_tests: List of Python tests to run in the form of tuples
-                    (build directory, Python test script).
-      binary_tests: List of binary tests to run in the form of tuples
-                    (build directory, binary file).
-
-    Returns:
-      The exit code the program should pass into sys.exit().
-    """
-
-    if python_tests or binary_tests:
-      results = []
-      for directory, test in python_tests:
-        results.append((directory,
-                        test,
-                        self._RunPythonTest(test, directory) == 0))
-      for directory, test in binary_tests:
-        results.append((directory,
-                        self.os.path.basename(test),
-                        self._RunBinaryTest(test) == 0))
-
-      failed = [(directory, test)
-                for (directory, test, success) in results
-                if not success]
-      print
-      print '%d tests run.' % len(results)
-      if failed:
-        print 'The following %d tests failed:' % len(failed)
-        for (directory, test) in failed:
-          print '%s in %s' % (test, directory)
-        return 1
-      else:
-        print 'All tests passed!'
-    else:  # No tests defined
-      print 'Nothing to test - no tests specified!'
-
-    return 0
-
-
-def ParseArgs(project_name, argv=None, help_callback=None):
-  """Parses the options run_tests.py uses."""
-
-  # Suppresses lint warning on unused arguments.  These arguments are
-  # required by optparse, even though they are unused.
-  # pylint: disable-msg=W0613
-  def PrintHelp(option, opt, value, parser):
-    print HELP_MSG % {'proj': project_name}
-    sys.exit(1)
-
-  parser = optparse.OptionParser()
-  parser.add_option('-c',
-                    action='store',
-                    dest='configurations',
-                    default=None)
-  parser.add_option('-a',
-                    action='store_const',
-                    dest='configurations',
-                    default=None,
-                    const='all')
-  parser.add_option('-b',
-                    action='store_const',
-                    dest='built_configurations',
-                    default=False,
-                    const=True)
-  # Replaces the built-in help with ours.
-  parser.remove_option('-h')
-  parser.add_option('-h', '--help',
-                    action='callback',
-                    callback=help_callback or PrintHelp)
-  return parser.parse_args(argv)
diff --git a/test/run_tests_util_test.py b/test/run_tests_util_test.py
deleted file mode 100755
index 9c55726..0000000
--- a/test/run_tests_util_test.py
+++ /dev/null
@@ -1,676 +0,0 @@
-#!/usr/bin/env python
-#
-# Copyright 2009 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.
-
-"""Tests for run_tests_util.py test runner script."""
-
-__author__ = 'vladl@google.com (Vlad Losev)'
-
-import os
-import re
-import sets
-import unittest
-
-import run_tests_util
-
-
-GTEST_DBG_DIR = 'scons/build/dbg/gtest/scons'
-GTEST_OPT_DIR = 'scons/build/opt/gtest/scons'
-GTEST_OTHER_DIR = 'scons/build/other/gtest/scons'
-
-
-def AddExeExtension(path):
-  """Appends .exe to the path on Windows or Cygwin."""
-
-  if run_tests_util.IS_WINDOWS or run_tests_util.IS_CYGWIN:
-    return path + '.exe'
-  else:
-    return path
-
-
-class FakePath(object):
-  """A fake os.path module for testing."""
-
-  def __init__(self, current_dir=os.getcwd(), known_paths=None):
-    self.current_dir = current_dir
-    self.tree = {}
-    self.path_separator = os.sep
-
-    # known_paths contains either absolute or relative paths. Relative paths
-    # are absolutized with self.current_dir.
-    if known_paths:
-      self._AddPaths(known_paths)
-
-  def _AddPath(self, path):
-    ends_with_slash = path.endswith('/')
-    path = self.abspath(path)
-    if ends_with_slash:
-      path += self.path_separator
-    name_list = path.split(self.path_separator)
-    tree = self.tree
-    for name in name_list[:-1]:
-      if not name:
-        continue
-      if name in tree:
-        tree = tree[name]
-      else:
-        tree[name] = {}
-        tree = tree[name]
-
-    name = name_list[-1]
-    if name:
-      if name in tree:
-        assert tree[name] == 1
-      else:
-        tree[name] = 1
-
-  def _AddPaths(self, paths):
-    for path in paths:
-      self._AddPath(path)
-
-  def PathElement(self, path):
-    """Returns an internal representation of directory tree entry for path."""
-    tree = self.tree
-    name_list = self.abspath(path).split(self.path_separator)
-    for name in name_list:
-      if not name:
-        continue
-      tree = tree.get(name, None)
-      if tree is None:
-        break
-
-    return tree
-
-  # Silences pylint warning about using standard names.
-  # pylint: disable-msg=C6409
-  def normpath(self, path):
-    return os.path.normpath(path)
-
-  def abspath(self, path):
-    return self.normpath(os.path.join(self.current_dir, path))
-
-  def isfile(self, path):
-    return self.PathElement(self.abspath(path)) == 1
-
-  def isdir(self, path):
-    return type(self.PathElement(self.abspath(path))) == type(dict())
-
-  def basename(self, path):
-    return os.path.basename(path)
-
-  def dirname(self, path):
-    return os.path.dirname(path)
-
-  def join(self, *kargs):
-    return os.path.join(*kargs)
-
-
-class FakeOs(object):
-  """A fake os module for testing."""
-  P_WAIT = os.P_WAIT
-
-  def __init__(self, fake_path_module):
-    self.path = fake_path_module
-
-    # Some methods/attributes are delegated to the real os module.
-    self.environ = os.environ
-
-  # pylint: disable-msg=C6409
-  def listdir(self, path):
-    assert self.path.isdir(path)
-    return self.path.PathElement(path).iterkeys()
-
-  def spawnv(self, wait, executable, *kargs):
-    assert wait == FakeOs.P_WAIT
-    return self.spawn_impl(executable, kargs)
-
-
-class GetTestsToRunTest(unittest.TestCase):
-  """Exercises TestRunner.GetTestsToRun."""
-
-  def NormalizeGetTestsToRunResults(self, results):
-    """Normalizes path data returned from GetTestsToRun for comparison."""
-
-    def NormalizePythonTestPair(pair):
-      """Normalizes path data in the (directory, python_script) pair."""
-
-      return (os.path.normpath(pair[0]), os.path.normpath(pair[1]))
-
-    def NormalizeBinaryTestPair(pair):
-      """Normalizes path data in the (directory, binary_executable) pair."""
-
-      directory, executable = map(os.path.normpath, pair)
-
-      # On Windows and Cygwin, the test file names have the .exe extension, but
-      # they can be invoked either by name or by name+extension. Our test must
-      # accommodate both situations.
-      if run_tests_util.IS_WINDOWS or run_tests_util.IS_CYGWIN:
-        executable = re.sub(r'\.exe$', '', executable)
-      return (directory, executable)
-
-    python_tests = sets.Set(map(NormalizePythonTestPair, results[0]))
-    binary_tests = sets.Set(map(NormalizeBinaryTestPair, results[1]))
-    return (python_tests, binary_tests)
-
-  def AssertResultsEqual(self, results, expected):
-    """Asserts results returned by GetTestsToRun equal to expected results."""
-
-    self.assertEqual(self.NormalizeGetTestsToRunResults(results),
-                     self.NormalizeGetTestsToRunResults(expected),
-                     'Incorrect set of tests returned:\n%s\nexpected:\n%s' %
-                     (results, expected))
-
-  def setUp(self):
-    self.fake_os = FakeOs(FakePath(
-        current_dir=os.path.abspath(os.path.dirname(run_tests_util.__file__)),
-        known_paths=[AddExeExtension(GTEST_DBG_DIR + '/gtest_unittest'),
-                     AddExeExtension(GTEST_OPT_DIR + '/gtest_unittest'),
-                     'test/gtest_color_test.py']))
-    self.fake_configurations = ['dbg', 'opt']
-    self.test_runner = run_tests_util.TestRunner(script_dir='.',
-                                                 injected_os=self.fake_os,
-                                                 injected_subprocess=None)
-
-  def testBinaryTestsOnly(self):
-    """Exercises GetTestsToRun with parameters designating binary tests only."""
-
-    # A default build.
-    self.AssertResultsEqual(
-        self.test_runner.GetTestsToRun(
-            ['gtest_unittest'],
-            '',
-            False,
-            available_configurations=self.fake_configurations),
-        ([],
-         [(GTEST_DBG_DIR, GTEST_DBG_DIR + '/gtest_unittest')]))
-
-    # An explicitly specified directory.
-    self.AssertResultsEqual(
-        self.test_runner.GetTestsToRun(
-            [GTEST_DBG_DIR, 'gtest_unittest'],
-            '',
-            False,
-            available_configurations=self.fake_configurations),
-        ([],
-         [(GTEST_DBG_DIR, GTEST_DBG_DIR + '/gtest_unittest')]))
-
-    # A particular configuration.
-    self.AssertResultsEqual(
-        self.test_runner.GetTestsToRun(
-            ['gtest_unittest'],
-            'other',
-            False,
-            available_configurations=self.fake_configurations),
-        ([],
-         [(GTEST_OTHER_DIR, GTEST_OTHER_DIR + '/gtest_unittest')]))
-
-    # All available configurations
-    self.AssertResultsEqual(
-        self.test_runner.GetTestsToRun(
-            ['gtest_unittest'],
-            'all',
-            False,
-            available_configurations=self.fake_configurations),
-        ([],
-         [(GTEST_DBG_DIR, GTEST_DBG_DIR + '/gtest_unittest'),
-          (GTEST_OPT_DIR, GTEST_OPT_DIR + '/gtest_unittest')]))
-
-    # All built configurations (unbuilt don't cause failure).
-    self.AssertResultsEqual(
-        self.test_runner.GetTestsToRun(
-            ['gtest_unittest'],
-            '',
-            True,
-            available_configurations=self.fake_configurations + ['unbuilt']),
-        ([],
-         [(GTEST_DBG_DIR, GTEST_DBG_DIR + '/gtest_unittest'),
-          (GTEST_OPT_DIR, GTEST_OPT_DIR + '/gtest_unittest')]))
-
-    # A combination of an explicit directory and a configuration.
-    self.AssertResultsEqual(
-        self.test_runner.GetTestsToRun(
-            [GTEST_DBG_DIR, 'gtest_unittest'],
-            'opt',
-            False,
-            available_configurations=self.fake_configurations),
-        ([],
-         [(GTEST_DBG_DIR, GTEST_DBG_DIR + '/gtest_unittest'),
-          (GTEST_OPT_DIR, GTEST_OPT_DIR + '/gtest_unittest')]))
-
-    # Same test specified in an explicit directory and via a configuration.
-    self.AssertResultsEqual(
-        self.test_runner.GetTestsToRun(
-            [GTEST_DBG_DIR, 'gtest_unittest'],
-            'dbg',
-            False,
-            available_configurations=self.fake_configurations),
-        ([],
-         [(GTEST_DBG_DIR, GTEST_DBG_DIR + '/gtest_unittest')]))
-
-    # All built configurations + explicit directory + explicit configuration.
-    self.AssertResultsEqual(
-        self.test_runner.GetTestsToRun(
-            [GTEST_DBG_DIR, 'gtest_unittest'],
-            'opt',
-            True,
-            available_configurations=self.fake_configurations),
-        ([],
-         [(GTEST_DBG_DIR, GTEST_DBG_DIR + '/gtest_unittest'),
-          (GTEST_OPT_DIR, GTEST_OPT_DIR + '/gtest_unittest')]))
-
-  def testPythonTestsOnly(self):
-    """Exercises GetTestsToRun with parameters designating Python tests only."""
-
-    # A default build.
-    self.AssertResultsEqual(
-        self.test_runner.GetTestsToRun(
-            ['gtest_color_test.py'],
-            '',
-            False,
-            available_configurations=self.fake_configurations),
-        ([(GTEST_DBG_DIR, 'test/gtest_color_test.py')],
-         []))
-
-    # An explicitly specified directory.
-    self.AssertResultsEqual(
-        self.test_runner.GetTestsToRun(
-            [GTEST_DBG_DIR, 'test/gtest_color_test.py'],
-            '',
-            False,
-            available_configurations=self.fake_configurations),
-        ([(GTEST_DBG_DIR, 'test/gtest_color_test.py')],
-         []))
-
-    # A particular configuration.
-    self.AssertResultsEqual(
-        self.test_runner.GetTestsToRun(
-            ['gtest_color_test.py'],
-            'other',
-            False,
-            available_configurations=self.fake_configurations),
-        ([(GTEST_OTHER_DIR, 'test/gtest_color_test.py')],
-         []))
-
-    # All available configurations
-    self.AssertResultsEqual(
-        self.test_runner.GetTestsToRun(
-            ['test/gtest_color_test.py'],
-            'all',
-            False,
-            available_configurations=self.fake_configurations),
-        ([(GTEST_DBG_DIR, 'test/gtest_color_test.py'),
-          (GTEST_OPT_DIR, 'test/gtest_color_test.py')],
-         []))
-
-    # All built configurations (unbuilt don't cause failure).
-    self.AssertResultsEqual(
-        self.test_runner.GetTestsToRun(
-            ['gtest_color_test.py'],
-            '',
-            True,
-            available_configurations=self.fake_configurations + ['unbuilt']),
-        ([(GTEST_DBG_DIR, 'test/gtest_color_test.py'),
-          (GTEST_OPT_DIR, 'test/gtest_color_test.py')],
-         []))
-
-    # A combination of an explicit directory and a configuration.
-    self.AssertResultsEqual(
-        self.test_runner.GetTestsToRun(
-            [GTEST_DBG_DIR, 'gtest_color_test.py'],
-            'opt',
-            False,
-            available_configurations=self.fake_configurations),
-        ([(GTEST_DBG_DIR, 'test/gtest_color_test.py'),
-          (GTEST_OPT_DIR, 'test/gtest_color_test.py')],
-         []))
-
-    # Same test specified in an explicit directory and via a configuration.
-    self.AssertResultsEqual(
-        self.test_runner.GetTestsToRun(
-            [GTEST_DBG_DIR, 'gtest_color_test.py'],
-            'dbg',
-            False,
-            available_configurations=self.fake_configurations),
-        ([(GTEST_DBG_DIR, 'test/gtest_color_test.py')],
-         []))
-
-    # All built configurations + explicit directory + explicit configuration.
-    self.AssertResultsEqual(
-        self.test_runner.GetTestsToRun(
-            [GTEST_DBG_DIR, 'gtest_color_test.py'],
-            'opt',
-            True,
-            available_configurations=self.fake_configurations),
-        ([(GTEST_DBG_DIR, 'test/gtest_color_test.py'),
-          (GTEST_OPT_DIR, 'test/gtest_color_test.py')],
-         []))
-
-  def testCombinationOfBinaryAndPythonTests(self):
-    """Exercises GetTestsToRun with mixed binary/Python tests."""
-
-    # Use only default configuration for this test.
-
-    # Neither binary nor Python tests are specified so find all.
-    self.AssertResultsEqual(
-        self.test_runner.GetTestsToRun(
-            [],
-            '',
-            False,
-            available_configurations=self.fake_configurations),
-        ([(GTEST_DBG_DIR, 'test/gtest_color_test.py')],
-         [(GTEST_DBG_DIR, GTEST_DBG_DIR + '/gtest_unittest')]))
-
-    # Specifying both binary and Python tests.
-    self.AssertResultsEqual(
-        self.test_runner.GetTestsToRun(
-            ['gtest_unittest', 'gtest_color_test.py'],
-            '',
-            False,
-            available_configurations=self.fake_configurations),
-        ([(GTEST_DBG_DIR, 'test/gtest_color_test.py')],
-         [(GTEST_DBG_DIR, GTEST_DBG_DIR + '/gtest_unittest')]))
-
-    # Specifying binary tests suppresses Python tests.
-    self.AssertResultsEqual(
-        self.test_runner.GetTestsToRun(
-            ['gtest_unittest'],
-            '',
-            False,
-            available_configurations=self.fake_configurations),
-        ([],
-         [(GTEST_DBG_DIR, GTEST_DBG_DIR + '/gtest_unittest')]))
-
-   # Specifying Python tests suppresses binary tests.
-    self.AssertResultsEqual(
-        self.test_runner.GetTestsToRun(
-            ['gtest_color_test.py'],
-            '',
-            False,
-            available_configurations=self.fake_configurations),
-        ([(GTEST_DBG_DIR, 'test/gtest_color_test.py')],
-         []))
-
-  def testIgnoresNonTestFiles(self):
-    """Verifies that GetTestsToRun ignores non-test files in the filesystem."""
-
-    self.fake_os = FakeOs(FakePath(
-        current_dir=os.path.abspath(os.path.dirname(run_tests_util.__file__)),
-        known_paths=[AddExeExtension(GTEST_DBG_DIR + '/gtest_nontest'),
-                     'test/']))
-    self.test_runner = run_tests_util.TestRunner(script_dir='.',
-                                                 injected_os=self.fake_os,
-                                                 injected_subprocess=None)
-    self.AssertResultsEqual(
-        self.test_runner.GetTestsToRun(
-            [],
-            '',
-            True,
-            available_configurations=self.fake_configurations),
-        ([], []))
-
-  def testWorksFromDifferentDir(self):
-    """Exercises GetTestsToRun from a directory different from run_test.py's."""
-
-    # Here we simulate an test script in directory /d/ called from the
-    # directory /a/b/c/.
-    self.fake_os = FakeOs(FakePath(
-        current_dir=os.path.abspath('/a/b/c'),
-        known_paths=[
-            '/a/b/c/',
-            AddExeExtension('/d/' + GTEST_DBG_DIR + '/gtest_unittest'),
-            AddExeExtension('/d/' + GTEST_OPT_DIR + '/gtest_unittest'),
-            '/d/test/gtest_color_test.py']))
-    self.fake_configurations = ['dbg', 'opt']
-    self.test_runner = run_tests_util.TestRunner(script_dir='/d/',
-                                                 injected_os=self.fake_os,
-                                                 injected_subprocess=None)
-    # A binary test.
-    self.AssertResultsEqual(
-        self.test_runner.GetTestsToRun(
-            ['gtest_unittest'],
-            '',
-            False,
-            available_configurations=self.fake_configurations),
-        ([],
-         [('/d/' + GTEST_DBG_DIR, '/d/' + GTEST_DBG_DIR + '/gtest_unittest')]))
-
-    # A Python test.
-    self.AssertResultsEqual(
-        self.test_runner.GetTestsToRun(
-            ['gtest_color_test.py'],
-            '',
-            False,
-            available_configurations=self.fake_configurations),
-        ([('/d/' + GTEST_DBG_DIR, '/d/test/gtest_color_test.py')], []))
-
-  def testNonTestBinary(self):
-    """Exercises GetTestsToRun with a non-test parameter."""
-
-    self.assert_(
-        not self.test_runner.GetTestsToRun(
-            ['gtest_unittest_not_really'],
-            '',
-            False,
-            available_configurations=self.fake_configurations))
-
-  def testNonExistingPythonTest(self):
-    """Exercises GetTestsToRun with a non-existent Python test parameter."""
-
-    self.assert_(
-        not self.test_runner.GetTestsToRun(
-            ['nonexistent_test.py'],
-            '',
-            False,
-            available_configurations=self.fake_configurations))
-
-  if run_tests_util.IS_WINDOWS or run_tests_util.IS_CYGWIN:
-
-    def testDoesNotPickNonExeFilesOnWindows(self):
-      """Verifies that GetTestsToRun does not find _test files on Windows."""
-
-      self.fake_os = FakeOs(FakePath(
-          current_dir=os.path.abspath(os.path.dirname(run_tests_util.__file__)),
-          known_paths=['/d/' + GTEST_DBG_DIR + '/gtest_test', 'test/']))
-      self.test_runner = run_tests_util.TestRunner(script_dir='.',
-                                                   injected_os=self.fake_os,
-                                                   injected_subprocess=None)
-      self.AssertResultsEqual(
-          self.test_runner.GetTestsToRun(
-              [],
-              '',
-              True,
-              available_configurations=self.fake_configurations),
-          ([], []))
-
-
-class RunTestsTest(unittest.TestCase):
-  """Exercises TestRunner.RunTests."""
-
-  def SpawnSuccess(self, unused_executable, unused_argv):
-    """Fakes test success by returning 0 as an exit code."""
-
-    self.num_spawn_calls += 1
-    return 0
-
-  def SpawnFailure(self, unused_executable, unused_argv):
-    """Fakes test success by returning 1 as an exit code."""
-
-    self.num_spawn_calls += 1
-    return 1
-
-  def setUp(self):
-    self.fake_os = FakeOs(FakePath(
-        current_dir=os.path.abspath(os.path.dirname(run_tests_util.__file__)),
-        known_paths=[
-            AddExeExtension(GTEST_DBG_DIR + '/gtest_unittest'),
-            AddExeExtension(GTEST_OPT_DIR + '/gtest_unittest'),
-            'test/gtest_color_test.py']))
-    self.fake_configurations = ['dbg', 'opt']
-    self.test_runner = run_tests_util.TestRunner(
-        script_dir=os.path.dirname(__file__) or '.',
-        injected_os=self.fake_os,
-        injected_subprocess=None)
-    self.num_spawn_calls = 0  # A number of calls to spawn.
-
-  def testRunPythonTestSuccess(self):
-    """Exercises RunTests to handle a Python test success."""
-
-    self.fake_os.spawn_impl = self.SpawnSuccess
-    self.assertEqual(
-        self.test_runner.RunTests(
-            [(GTEST_DBG_DIR, 'test/gtest_color_test.py')],
-            []),
-        0)
-    self.assertEqual(self.num_spawn_calls, 1)
-
-  def testRunBinaryTestSuccess(self):
-    """Exercises RunTests to handle a binary test success."""
-
-    self.fake_os.spawn_impl = self.SpawnSuccess
-    self.assertEqual(
-        self.test_runner.RunTests(
-            [],
-            [(GTEST_DBG_DIR, GTEST_DBG_DIR + '/gtest_unittest')]),
-        0)
-    self.assertEqual(self.num_spawn_calls, 1)
-
-  def testRunPythonTestFauilure(self):
-    """Exercises RunTests to handle a Python test failure."""
-
-    self.fake_os.spawn_impl = self.SpawnFailure
-    self.assertEqual(
-        self.test_runner.RunTests(
-            [(GTEST_DBG_DIR, 'test/gtest_color_test.py')],
-            []),
-        1)
-    self.assertEqual(self.num_spawn_calls, 1)
-
-  def testRunBinaryTestFailure(self):
-    """Exercises RunTests to handle a binary test failure."""
-
-    self.fake_os.spawn_impl = self.SpawnFailure
-    self.assertEqual(
-        self.test_runner.RunTests(
-            [],
-            [(GTEST_DBG_DIR, GTEST_DBG_DIR + '/gtest_unittest')]),
-        1)
-    self.assertEqual(self.num_spawn_calls, 1)
-
-  def testCombinedTestSuccess(self):
-    """Exercises RunTests to handle a success of both Python and binary test."""
-
-    self.fake_os.spawn_impl = self.SpawnSuccess
-    self.assertEqual(
-        self.test_runner.RunTests(
-            [(GTEST_DBG_DIR, GTEST_DBG_DIR + '/gtest_unittest')],
-            [(GTEST_DBG_DIR, GTEST_DBG_DIR + '/gtest_unittest')]),
-        0)
-    self.assertEqual(self.num_spawn_calls, 2)
-
-  def testCombinedTestSuccessAndFailure(self):
-    """Exercises RunTests to handle a success of both Python and binary test."""
-
-    def SpawnImpl(executable, argv):
-      self.num_spawn_calls += 1
-      # Simulates failure of a Python test and success of a binary test.
-      if '.py' in executable or '.py' in argv[0]:
-        return 1
-      else:
-        return 0
-
-    self.fake_os.spawn_impl = SpawnImpl
-    self.assertEqual(
-        self.test_runner.RunTests(
-            [(GTEST_DBG_DIR, GTEST_DBG_DIR + '/gtest_unittest')],
-            [(GTEST_DBG_DIR, GTEST_DBG_DIR + '/gtest_unittest')]),
-        0)
-    self.assertEqual(self.num_spawn_calls, 2)
-
-
-class ParseArgsTest(unittest.TestCase):
-  """Exercises ParseArgs."""
-
-  def testNoOptions(self):
-    options, args = run_tests_util.ParseArgs('gtest', argv=['script.py'])
-    self.assertEqual(args, ['script.py'])
-    self.assert_(options.configurations is None)
-    self.assertFalse(options.built_configurations)
-
-  def testOptionC(self):
-    options, args = run_tests_util.ParseArgs(
-        'gtest', argv=['script.py', '-c', 'dbg'])
-    self.assertEqual(args, ['script.py'])
-    self.assertEqual(options.configurations, 'dbg')
-    self.assertFalse(options.built_configurations)
-
-  def testOptionA(self):
-    options, args = run_tests_util.ParseArgs('gtest', argv=['script.py', '-a'])
-    self.assertEqual(args, ['script.py'])
-    self.assertEqual(options.configurations, 'all')
-    self.assertFalse(options.built_configurations)
-
-  def testOptionB(self):
-    options, args = run_tests_util.ParseArgs('gtest', argv=['script.py', '-b'])
-    self.assertEqual(args, ['script.py'])
-    self.assert_(options.configurations is None)
-    self.assertTrue(options.built_configurations)
-
-  def testOptionCAndOptionB(self):
-    options, args = run_tests_util.ParseArgs(
-        'gtest', argv=['script.py', '-c', 'dbg', '-b'])
-    self.assertEqual(args, ['script.py'])
-    self.assertEqual(options.configurations, 'dbg')
-    self.assertTrue(options.built_configurations)
-
-  def testOptionH(self):
-    help_called = [False]
-
-    # Suppresses lint warning on unused arguments.  These arguments are
-    # required by optparse, even though they are unused.
-    # pylint: disable-msg=W0613
-    def VerifyHelp(option, opt, value, parser):
-      help_called[0] = True
-
-    # Verifies that -h causes the help callback to be called.
-    help_called[0] = False
-    _, args = run_tests_util.ParseArgs(
-        'gtest', argv=['script.py', '-h'], help_callback=VerifyHelp)
-    self.assertEqual(args, ['script.py'])
-    self.assertTrue(help_called[0])
-
-    # Verifies that --help causes the help callback to be called.
-    help_called[0] = False
-    _, args = run_tests_util.ParseArgs(
-        'gtest', argv=['script.py', '--help'], help_callback=VerifyHelp)
-    self.assertEqual(args, ['script.py'])
-    self.assertTrue(help_called[0])
-
-
-if __name__ == '__main__':
-  unittest.main()