Initial import.

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diff --git a/test/gtest_list_tests_unittest.py b/test/gtest_list_tests_unittest.py
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+#!/usr/bin/env python
+#
+# Copyright 2006, 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.
+
+"""Unit test for Google Test's --gtest_list_tests flag.
+
+A user can ask Google Test to list all tests by specifying the
+--gtest_list_tests flag.  This script tests such functionality
+by invoking gtest_list_tests_unittest_ (a program written with
+Google Test) the command line flags.
+"""
+
+__author__ = 'phanna@google.com (Patrick Hanna)'
+
+import gtest_test_utils
+import os
+import re
+import sys
+import unittest
+
+
+# Constants.
+
+# The command line flag for enabling/disabling listing all tests.
+LIST_TESTS_FLAG = 'gtest_list_tests'
+
+# Path to the gtest_list_tests_unittest_ program.
+EXE_PATH = os.path.join(gtest_test_utils.GetBuildDir(),
+                        'gtest_list_tests_unittest_');
+
+# The expected output when running gtest_list_tests_unittest_ with
+# --gtest_list_tests
+EXPECTED_OUTPUT = """FooDeathTest.
+  Test1
+Foo.
+  Bar1
+  Bar2
+  Bar3
+Abc.
+  Xyz
+  Def
+FooBar.
+  Baz
+FooTest.
+  Test1
+  Test2
+  Test3
+"""
+
+# Utilities.
+
+def Run(command):
+  """Runs a command and returns the list of tests printed.
+  """
+
+  stdout_file = os.popen(command, "r")
+
+  output = stdout_file.read()
+
+  stdout_file.close()
+  return output
+
+
+# The unit test.
+
+class GTestListTestsUnitTest(unittest.TestCase):
+  """Tests using the --gtest_list_tests flag to list all tests.
+  """
+
+  def RunAndVerify(self, flag_value, expected_output, other_flag):
+    """Runs gtest_list_tests_unittest_ and verifies that it prints
+    the correct tests.
+
+    Args:
+      flag_value:       value of the --gtest_list_tests flag;
+                        None if the flag should not be present.
+
+      expected_output:  the expected output after running command;
+
+      other_flag:       a different flag to be passed to command
+                        along with gtest_list_tests;
+                        None if the flag should not be present.
+    """
+
+    if flag_value is None:
+      flag = ''
+      flag_expression = "not set"
+    elif flag_value == '0':
+      flag = ' --%s=0' % LIST_TESTS_FLAG
+      flag_expression = "0"
+    else:
+      flag = ' --%s' % LIST_TESTS_FLAG
+      flag_expression = "1"
+
+    command = EXE_PATH + flag
+
+    if other_flag is not None:
+      command += " " + other_flag
+
+    output = Run(command)
+
+    msg = ('when %s is %s, the output of "%s" is "%s".' %
+          (LIST_TESTS_FLAG, flag_expression, command, output))
+
+    if expected_output is not None:
+      self.assert_(output == expected_output, msg)
+    else:
+      self.assert_(output != EXPECTED_OUTPUT, msg)
+
+  def testDefaultBehavior(self):
+    """Tests the behavior of the default mode."""
+
+    self.RunAndVerify(flag_value=None,
+                      expected_output=None,
+                      other_flag=None)
+
+  def testFlag(self):
+    """Tests using the --gtest_list_tests flag."""
+
+    self.RunAndVerify(flag_value='0',
+                      expected_output=None,
+                      other_flag=None)
+    self.RunAndVerify(flag_value='1',
+                      expected_output=EXPECTED_OUTPUT,
+                      other_flag=None)
+
+  def testOverrideOtherFlags(self):
+    """Tests that --gtest_list_tests overrides all other flags."""
+
+    self.RunAndVerify(flag_value="1",
+                      expected_output=EXPECTED_OUTPUT,
+                      other_flag="--gtest_filter=*")
+    self.RunAndVerify(flag_value="1",
+                      expected_output=EXPECTED_OUTPUT,
+                      other_flag="--gtest_break_on_failure")
+
+if __name__ == '__main__':
+  gtest_test_utils.Main()