450 lines
		
	
	
		
			17 KiB
		
	
	
	
		
			Python
		
	
	
		
			Executable File
		
	
	
	
	
			
		
		
	
	
			450 lines
		
	
	
		
			17 KiB
		
	
	
	
		
			Python
		
	
	
		
			Executable File
		
	
	
	
	
#!/usr/bin/env python
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#
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# Copyright 2008, Google Inc. All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are
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# met:
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#
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#     * Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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#     * Redistributions in binary form must reproduce the above
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# copyright notice, this list of conditions and the following disclaimer
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# in the documentation and/or other materials provided with the
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# distribution.
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#     * Neither the name of Google Inc. nor the names of its
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# contributors may be used to endorse or promote products derived from
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# this software without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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"""Runs specified tests for Google Test.
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SYNOPSIS
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       run_tests.py [OPTION]... [BUILD_DIR]... [TEST]...
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DESCRIPTION
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       Runs the specified tests (either binary or Python), and prints a
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       summary of the results. BUILD_DIRS will be used to search for the
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       binaries. If no TESTs are specified, all binary tests found in
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       BUILD_DIRs and all Python tests found in the directory test/ (in the
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       gtest root) are run.
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       TEST is a name of either a binary or a Python test. A binary test is
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       an executable file named *_test or *_unittest (with the .exe
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       extension on Windows) A Python test is a script named *_test.py or
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       *_unittest.py.
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OPTIONS
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       -c CONFIGURATIONS
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              Specify build directories via build configurations.
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              CONFIGURATIONS is either a comma-separated list of build
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              configurations or 'all'. Each configuration is equivalent to
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              adding 'scons/build/<configuration>/gtest/scons' to BUILD_DIRs.
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              Specifying -c=all is equivalent to providing all directories
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              listed in KNOWN BUILD DIRECTORIES section below.
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       -a
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             Equivalent to -c=all
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       -b
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             Equivalent to -c=all with the exception that the script will not
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             fail if some of the KNOWN BUILD DIRECTORIES do not exists; the
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             script will simply not run the tests there. 'b' stands for
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             'built directories'.
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RETURN VALUE
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       Returns 0 if all tests are successful; otherwise returns 1.
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EXAMPLES
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       run_tests.py
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              Runs all tests for the default build configuration.
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       run_tests.py -a
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              Runs all tests with binaries in KNOWN BUILD DIRECTORIES.
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       run_tests.py -b
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              Runs all tests in KNOWN BUILD DIRECTORIES that have been
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              built.
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       run_tests.py foo/
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              Runs all tests in the foo/ directory and all Python tests in
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              the directory test. The Python tests are instructed to look
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              for binaries in foo/.
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       run_tests.py bar_test.exe test/baz_test.exe foo/ bar/
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              Runs foo/bar_test.exe, bar/bar_test.exe, foo/baz_test.exe, and
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              bar/baz_test.exe.
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       run_tests.py foo bar test/foo_test.py
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              Runs test/foo_test.py twice instructing it to look for its
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              test binaries in the directories foo and bar,
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              correspondingly.
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KNOWN BUILD DIRECTORIES
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      run_tests.py knows about directories where the SCons build script
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      deposits its products. These are the directories where run_tests.py
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      will be looking for its binaries. Currently, gtest's SConstruct file
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      defines them as follows (the default build directory is the first one
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      listed in each group):
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      On Windows:
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              <gtest root>/scons/build/win-dbg8/gtest/scons/
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              <gtest root>/scons/build/win-opt8/gtest/scons/
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              <gtest root>/scons/build/win-dbg/gtest/scons/
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              <gtest root>/scons/build/win-opt/gtest/scons/
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      On Mac:
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              <gtest root>/scons/build/mac-dbg/gtest/scons/
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              <gtest root>/scons/build/mac-opt/gtest/scons/
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      On other platforms:
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              <gtest root>/scons/build/dbg/gtest/scons/
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              <gtest root>/scons/build/opt/gtest/scons/
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AUTHOR
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       Written by Zhanyong Wan (wan@google.com)
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       and Vlad Losev(vladl@google.com).
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REQUIREMENTS
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       This script requires Python 2.3 or higher.
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"""
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import optparse
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import os
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import re
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import sets
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import sys
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try:
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  # subrocess module is a preferable way to invoke subprocesses but it may
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  # not be available on MacOS X 10.4.
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  import subprocess
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except ImportError:
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  subprocess = None
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IS_WINDOWS = os.name == 'nt'
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IS_MAC = os.name == 'posix' and os.uname()[0] == 'Darwin'
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IS_CYGWIN = os.name == 'posix' and 'CYGWIN' in os.uname()[0]
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# Definition of CONFIGS must match that of the build directory names in the
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# SConstruct script. The first list item is the default build configuration.
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if IS_WINDOWS:
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  CONFIGS = ('win-dbg8', 'win-opt8', 'win-dbg', 'win-opt')
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elif IS_MAC:
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  CONFIGS = ('mac-dbg', 'mac-opt')
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else:
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  CONFIGS = ('dbg', 'opt')
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if IS_WINDOWS or IS_CYGWIN:
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  PYTHON_TEST_REGEX = re.compile(r'_(unit)?test\.py$', re.IGNORECASE)
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  BINARY_TEST_REGEX = re.compile(r'_(unit)?test(\.exe)?$', re.IGNORECASE)
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  BINARY_TEST_SEARCH_REGEX = re.compile(r'_(unit)?test\.exe$', re.IGNORECASE)
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else:
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  PYTHON_TEST_REGEX = re.compile(r'_(unit)?test\.py$')
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  BINARY_TEST_REGEX = re.compile(r'_(unit)?test$')
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  BINARY_TEST_SEARCH_REGEX = BINARY_TEST_REGEX
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def _GetGtestBuildDir(os, script_dir, config):
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  """Calculates path to the Google Test SCons build directory."""
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  return os.path.normpath(os.path.join(script_dir,
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                                       'scons/build',
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                                       config,
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                                       'gtest/scons'))
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# All paths in this script are either absolute or relative to the current
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# working directory, unless otherwise specified.
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class TestRunner(object):
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  """Provides facilities for running Python and binary tests for Google Test."""
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  def __init__(self,
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               build_dir_var_name='GTEST_BUILD_DIR',
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               injected_os=os,
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               injected_subprocess=subprocess,
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               injected_script_dir=os.path.dirname(__file__),
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               injected_build_dir_finder=_GetGtestBuildDir):
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    self.os = injected_os
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    self.subprocess = injected_subprocess
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    self.build_dir_finder = injected_build_dir_finder
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    self.build_dir_var_name = build_dir_var_name
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    # If a program using this file is invoked via a relative path, the
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    # script directory will be relative to the path of the main program
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    # file.  It may be '.' when this script is invoked directly or '..' when
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    # it is imported for testing.  To simplify testing we inject the script
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    # directory into TestRunner.
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    self.script_dir = injected_script_dir
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  def _GetBuildDirForConfig(self, config):
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    """Returns the build directory for a given configuration."""
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    return self.build_dir_finder(self.os, self.script_dir, config)
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  def _Run(self, args):
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    """Runs the executable with given args (args[0] is the executable name).
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    Args:
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      args: Command line arguments for the process.
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    Returns:
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      Process's exit code if it exits normally, or -signal if the process is
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      killed by a signal.
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    """
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    if self.subprocess:
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      return self.subprocess.Popen(args).wait()
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    else:
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      return self.os.spawnv(self.os.P_WAIT, args[0], args)
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  def _RunBinaryTest(self, test):
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    """Runs the binary test given its path.
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    Args:
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      test: Path to the test binary.
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    Returns:
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      Process's exit code if it exits normally, or -signal if the process is
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      killed by a signal.
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    """
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    return self._Run([test])
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  def _RunPythonTest(self, test, build_dir):
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    """Runs the Python test script with the specified build directory.
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    Args:
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      test: Path to the test's Python script.
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      build_dir: Path to the directory where the test binary is to be found.
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    Returns:
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      Process's exit code if it exits normally, or -signal if the process is
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      killed by a signal.
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    """
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    old_build_dir = self.os.environ.get(self.build_dir_var_name)
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    try:
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      self.os.environ[self.build_dir_var_name] = build_dir
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      # If this script is run on a Windows machine that has no association
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      # between the .py extension and a python interpreter, simply passing
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      # the script name into subprocess.Popen/os.spawn will not work.
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      print 'Running %s . . .' % (test,)
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      return self._Run([sys.executable, test])
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    finally:
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      if old_build_dir is None:
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        del self.os.environ[self.build_dir_var_name]
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      else:
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        self.os.environ[self.build_dir_var_name] = old_build_dir
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  def _FindFilesByRegex(self, directory, regex):
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    """Returns files in a directory whose names match a regular expression.
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    Args:
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      directory: Path to the directory to search for files.
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      regex: Regular expression to filter file names.
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    Returns:
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      The list of the paths to the files in the directory.
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    """
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    return [self.os.path.join(directory, file_name)
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            for file_name in self.os.listdir(directory)
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            if re.search(regex, file_name)]
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  # TODO(vladl@google.com): Implement parsing of scons/SConscript to run all
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  # tests defined there when no tests are specified.
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  # TODO(vladl@google.com): Update the docstring after the code is changed to
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  # try to test all builds defined in scons/SConscript.
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  def GetTestsToRun(self,
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                    args,
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                    named_configurations,
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                    built_configurations,
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                    available_configurations=CONFIGS):
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    """Determines what tests should be run.
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    Args:
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      args: The list of non-option arguments from the command line.
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      named_configurations: The list of configurations specified via -c or -a.
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      built_configurations: True if -b has been specified.
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      available_configurations: a list of configurations available on the
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                                current platform, injectable for testing.
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    Returns:
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      A tuple with 2 elements: the list of Python tests to run and the list of
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      binary tests to run.
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    """
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    if named_configurations == 'all':
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      named_configurations = ','.join(available_configurations)
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    normalized_args = [self.os.path.normpath(arg) for arg in args]
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    # A final list of build directories which will be searched for the test
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    # binaries. First, add directories specified directly on the command
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    # line.
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    build_dirs = filter(self.os.path.isdir, normalized_args)
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    # Adds build directories specified via their build configurations using
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    # the -c or -a options.
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    if named_configurations:
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      build_dirs += [self._GetBuildDirForConfig(config)
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                     for config in named_configurations.split(',')]
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    # Adds KNOWN BUILD DIRECTORIES if -b is specified.
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    if built_configurations:
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      build_dirs += [self._GetBuildDirForConfig(config)
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                     for config in available_configurations
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                     if self.os.path.isdir(self._GetBuildDirForConfig(config))]
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    # If no directories were specified either via -a, -b, -c, or directly, use
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    # the default configuration.
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    elif not build_dirs:
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      build_dirs = [self._GetBuildDirForConfig(available_configurations[0])]
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    # Makes sure there are no duplications.
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    build_dirs = sets.Set(build_dirs)
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    errors_found = False
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    listed_python_tests = []  # All Python tests listed on the command line.
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    listed_binary_tests = []  # All binary tests listed on the command line.
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    test_dir = self.os.path.normpath(self.os.path.join(self.script_dir, 'test'))
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    # Sifts through non-directory arguments fishing for any Python or binary
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    # tests and detecting errors.
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    for argument in sets.Set(normalized_args) - build_dirs:
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      if re.search(PYTHON_TEST_REGEX, argument):
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        python_path = self.os.path.join(test_dir,
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                                        self.os.path.basename(argument))
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        if self.os.path.isfile(python_path):
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          listed_python_tests.append(python_path)
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        else:
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          sys.stderr.write('Unable to find Python test %s' % argument)
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          errors_found = True
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      elif re.search(BINARY_TEST_REGEX, argument):
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        # This script also accepts binary test names prefixed with test/ for
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        # the convenience of typing them (can use path completions in the
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        # shell).  Strips test/ prefix from the binary test names.
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        listed_binary_tests.append(self.os.path.basename(argument))
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      else:
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        sys.stderr.write('%s is neither test nor build directory' % argument)
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        errors_found = True
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    if errors_found:
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      return None
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    user_has_listed_tests = listed_python_tests or listed_binary_tests
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    if user_has_listed_tests:
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      selected_python_tests = listed_python_tests
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    else:
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      selected_python_tests = self._FindFilesByRegex(test_dir,
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                                                     PYTHON_TEST_REGEX)
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    # TODO(vladl@google.com): skip unbuilt Python tests when -b is specified.
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    python_test_pairs = []
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    for directory in build_dirs:
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      for test in selected_python_tests:
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        python_test_pairs.append((directory, test))
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    binary_test_pairs = []
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    for directory in build_dirs:
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      if user_has_listed_tests:
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        binary_test_pairs.extend(
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            [(directory, self.os.path.join(directory, test))
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             for test in listed_binary_tests])
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      else:
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        tests = self._FindFilesByRegex(directory, BINARY_TEST_SEARCH_REGEX)
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        binary_test_pairs.extend([(directory, test) for test in tests])
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    return (python_test_pairs, binary_test_pairs)
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  def RunTests(self, python_tests, binary_tests):
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    """Runs Python and binary tests and reports results to the standard output.
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    Args:
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      python_tests: List of Python tests to run in the form of tuples
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                    (build directory, Python test script).
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      binary_tests: List of binary tests to run in the form of tuples
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                    (build directory, binary file).
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    Returns:
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      The exit code the program should pass into sys.exit().
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    """
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    if python_tests or binary_tests:
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      results = []
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      for directory, test in python_tests:
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        results.append((directory,
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                        test,
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                        self._RunPythonTest(test, directory) == 0))
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      for directory, test in binary_tests:
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        results.append((directory,
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                        self.os.path.basename(test),
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                        self._RunBinaryTest(test) == 0))
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      failed = [(directory, test)
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                for (directory, test, success) in results
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                if not success]
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      print
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      print '%d tests run.' % len(results)
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      if failed:
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        print 'The following %d tests failed:' % len(failed)
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        for (directory, test) in failed:
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          print '%s in %s' % (test, directory)
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        return 1
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      else:
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        print 'All tests passed!'
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    else:  # No tests defined
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      print 'Nothing to test - no tests specified!'
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    return 0
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def _Main():
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  """Runs all tests for Google Test."""
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  parser = optparse.OptionParser()
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  parser.add_option('-c',
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                    action='store',
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                    dest='configurations',
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                    default=None,
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                    help='Test in the specified build directories')
 | 
						|
  parser.add_option('-a',
 | 
						|
                    action='store_const',
 | 
						|
                    dest='configurations',
 | 
						|
                    default=None,
 | 
						|
                    const='all',
 | 
						|
                    help='Test in all default build directories')
 | 
						|
  parser.add_option('-b',
 | 
						|
                    action='store_const',
 | 
						|
                    dest='built_configurations',
 | 
						|
                    default=False,
 | 
						|
                    const=True,
 | 
						|
                    help=('Test in all default build directories, do not fail'
 | 
						|
                          'if some of them do not exist'))
 | 
						|
  (options, args) = parser.parse_args()
 | 
						|
 | 
						|
  test_runner = TestRunner()
 | 
						|
  tests = test_runner.GetTestsToRun(args,
 | 
						|
                                    options.configurations,
 | 
						|
                                    options.built_configurations)
 | 
						|
  if not tests:
 | 
						|
    sys.exit(1)  # Incorrect parameters given, abort execution.
 | 
						|
 | 
						|
  sys.exit(test_runner.RunTests(tests[0], tests[1]))
 | 
						|
 | 
						|
if __name__ == '__main__':
 | 
						|
  _Main()
 |