Moving check_package_boundaries to the presubmit checks directory

tools_webrtc/check_package_boundaries_test.py

-#!/usr/bin/env python
-
-# Copyright (c) 2017 The WebRTC project authors. All Rights Reserved.
-#
-# Use of this source code is governed by a BSD-style license
-# that can be found in the LICENSE file in the root of the source
-# tree. An additional intellectual property rights grant can be found
-# in the file PATENTS.  All contributing project authors may
-# be found in the AUTHORS file in the root of the source tree.
-
-import ast
-import os
-import unittest
-
-from check_package_boundaries import CheckPackageBoundaries
-
-
-MSG_FORMAT = 'ERROR:check_package_boundaries.py: Unexpected %s.'
-TESTDATA_DIR = os.path.join(os.path.dirname(os.path.abspath(__file__)),
-                            'testdata')
-
-
-def ReadPylFile(file_path):
-  with open(file_path) as f:
-    return ast.literal_eval(f.read())
-
-
-class Logger(object):
-  def __init__(self, test_dir):
-    self.messages = []
-    self.test_dir = test_dir
-
-  def Log(self, build_file_path, line_number, target_name, source_file,
-          subpackage):
-    build_file_path = os.path.relpath(build_file_path, self.test_dir)
-    build_file_path = build_file_path.replace(os.path.sep, '/')
-    self.messages.append([build_file_path, line_number, target_name,
-                          source_file, subpackage])
-
-
-class UnitTest(unittest.TestCase):
-  def RunTest(self, test_dir, check_all_build_files=False):
-    logger = Logger(test_dir)
-    build_files = [os.path.join(test_dir, 'BUILD.gn')]
-    if check_all_build_files:
-      build_files = None
-    CheckPackageBoundaries(test_dir, logger, build_files)
-    expected_messages = ReadPylFile(os.path.join(test_dir, 'expected.pyl'))
-    self.assertListEqual(sorted(expected_messages), sorted(logger.messages))
-
-  def testNoErrors(self):
-    self.RunTest(os.path.join(TESTDATA_DIR, 'no_errors'))
-
-  def testMultipleErrorsSingleTarget(self):
-    self.RunTest(os.path.join(TESTDATA_DIR, 'multiple_errors_single_target'))
-
-  def testMultipleErrorsMultipleTargets(self):
-    self.RunTest(os.path.join(TESTDATA_DIR, 'multiple_errors_multiple_targets'))
-
-  def testCommonPrefix(self):
-    self.RunTest(os.path.join(TESTDATA_DIR, 'common_prefix'))
-
-  def testAllBuildFiles(self):
-    self.RunTest(os.path.join(TESTDATA_DIR, 'all_build_files'), True)
-
-
-if __name__ == '__main__':
-  unittest.main()