| # Copyright (c) 2012 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 Google name 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. |
| |
| """ |
| This is an implementation of the Port interface that overrides other |
| ports and changes the Driver binary to "MockDRT". |
| |
| The MockDRT objects emulate what a real DRT would do. In particular, they |
| return the output a real DRT would return for a given test, assuming that |
| test actually passes (except for reftests, which currently cause the |
| MockDRT to crash). |
| """ |
| |
| import base64 |
| import logging |
| import optparse |
| import os |
| import sys |
| |
| # Since we execute this script directly as part of the unit tests, we need to ensure |
| # that Tools/Scripts is in sys.path for the next imports to work correctly. |
| script_dir = os.path.dirname(os.path.dirname(os.path.dirname(os.path.dirname(os.path.abspath(__file__))))) |
| if script_dir not in sys.path: |
| sys.path.append(script_dir) |
| |
| from webkitpy.common.system.systemhost import SystemHost |
| from webkitpy.port.driver import DriverInput, DriverOutput, DriverProxy |
| from webkitpy.port.factory import PortFactory |
| |
| _log = logging.getLogger(__name__) |
| |
| |
| class MockDRTPort(object): |
| port_name = 'mock' |
| |
| @classmethod |
| def determine_full_port_name(cls, host, options, port_name): |
| return port_name |
| |
| def __init__(self, host, port_name, **kwargs): |
| self.__delegate = PortFactory(host).get(port_name.replace('mock-', ''), **kwargs) |
| |
| def __getattr__(self, name): |
| return getattr(self.__delegate, name) |
| |
| def check_build(self): |
| return True |
| |
| def check_sys_deps(self): |
| return True |
| |
| def create_driver(self, worker_number, no_timeout=False): |
| # The magic of the MockDRTPort is that we create a driver that has a |
| # cmd_line() method monkey-patched to invoke this script instead of DRT. |
| return DriverProxy(self, worker_number, self._mocked_driver_maker, pixel_tests=self.get_option('pixel_tests'), no_timeout=no_timeout) |
| |
| @staticmethod |
| def _mocked_driver_maker(port, worker_number, pixel_tests, no_timeout=False): |
| path_to_this_file = port.host.filesystem.abspath(__file__.replace('.pyc', '.py')) |
| driver = port.__delegate._driver_class()(port, worker_number, pixel_tests, no_timeout) |
| driver.cmd_line = port._overriding_cmd_line(driver.cmd_line, |
| port.__delegate._path_to_driver(), |
| sys.executable, |
| path_to_this_file, |
| port.__delegate.name()) |
| return driver |
| |
| @staticmethod |
| def _overriding_cmd_line(original_cmd_line, driver_path, python_exe, this_file, port_name): |
| def new_cmd_line(pixel_tests, per_test_args): |
| cmd_line = original_cmd_line(pixel_tests, per_test_args) |
| index = cmd_line.index(driver_path) |
| cmd_line[index:index + 1] = [python_exe, this_file, '--platform', port_name] |
| return cmd_line |
| |
| return new_cmd_line |
| |
| def start_helper(self, pixel_tests=False): |
| pass |
| |
| def start_http_server(self, number_of_servers): |
| pass |
| |
| def start_websocket_server(self): |
| pass |
| |
| def stop_helper(self): |
| pass |
| |
| def stop_http_server(self): |
| pass |
| |
| def stop_websocket_server(self): |
| pass |
| |
| def show_results_html_file(self, results_filename): |
| pass |
| |
| |
| def main(argv, host, stdin, stdout, stderr): |
| """Run the tests.""" |
| |
| options, args = parse_options(argv) |
| drt = MockDRT(options, args, host, stdin, stdout, stderr) |
| return drt.run() |
| |
| |
| def parse_options(argv): |
| # FIXME: We have to do custom arg parsing instead of using the optparse |
| # module. First, Chromium and non-Chromium DRTs have a different argument |
| # syntax. Chromium uses --pixel-tests=<path>, and non-Chromium uses |
| # --pixel-tests as a boolean flag. Second, we don't want to have to list |
| # every command line flag DRT accepts, but optparse complains about |
| # unrecognized flags. At some point it might be good to share a common |
| # DRT options class between this file and webkit.py and chromium.py |
| # just to get better type checking. |
| platform_index = argv.index('--platform') |
| platform = argv[platform_index + 1] |
| |
| pixel_tests = '--pixel-tests' in argv |
| return (optparse.Values({'platform': platform, 'pixel_tests': pixel_tests}), argv) |
| |
| |
| class MockDRT(object): |
| def __init__(self, options, args, host, stdin, stdout, stderr): |
| self._options = options |
| self._args = args |
| self._host = host |
| self._stdout = stdout |
| self._stdin = stdin |
| self._stderr = stderr |
| |
| port_name = None |
| if options.platform: |
| port_name = options.platform |
| self._port = PortFactory(host).get(port_name=port_name, options=options) |
| self._driver = self._port.create_driver(0) |
| |
| def run(self): |
| while True: |
| line = self._stdin.readline() |
| if not line: |
| return 0 |
| driver_input = self.input_from_line(line) |
| dirname, basename = self._port.split_test(driver_input.test_name) |
| is_reftest = (self._port.reference_files(driver_input.test_name) or |
| self._port.is_reference_html_file(self._port._filesystem, dirname, basename)) |
| output = self.output_for_test(driver_input, is_reftest) |
| self.write_test_output(driver_input, output, is_reftest) |
| |
| def input_from_line(self, line): |
| vals = line.strip().split("'") |
| if len(vals) == 1: |
| uri = vals[0] |
| checksum = None |
| else: |
| uri = vals[0] |
| checksum = vals[1] |
| if uri.startswith('http://') or uri.startswith('https://'): |
| test_name = self._driver.uri_to_test(uri) |
| else: |
| test_name = self._port.relative_test_filename(uri) |
| |
| return DriverInput(test_name, 0, checksum, self._options.pixel_tests) |
| |
| def output_for_test(self, test_input, is_reftest): |
| port = self._port |
| actual_text = port.expected_text(test_input.test_name) |
| actual_audio = port.expected_audio(test_input.test_name) |
| actual_image = None |
| actual_checksum = None |
| if is_reftest: |
| # Make up some output for reftests. |
| actual_text = 'reference text\n' |
| actual_checksum = 'mock-checksum' |
| actual_image = 'blank' |
| if test_input.test_name.endswith('-mismatch.html'): |
| actual_text = 'not reference text\n' |
| actual_checksum = 'not-mock-checksum' |
| actual_image = 'not blank' |
| elif self._options.pixel_tests and test_input.image_hash: |
| actual_checksum = port.expected_checksum(test_input.test_name) |
| actual_image = port.expected_image(test_input.test_name) |
| |
| return DriverOutput(actual_text, actual_image, actual_checksum, actual_audio) |
| |
| def write_test_output(self, test_input, output, is_reftest): |
| if output.audio: |
| self._stdout.write('Content-Type: audio/wav\n') |
| self._stdout.write('Content-Transfer-Encoding: base64\n') |
| self._stdout.write(base64.b64encode(output.audio)) |
| else: |
| self._stdout.write('Content-Type: text/plain\n') |
| # FIXME: Note that we don't ensure there is a trailing newline! |
| # This mirrors actual (Mac) DRT behavior but is a bug. |
| if output.text: |
| self._stdout.write(output.text) |
| |
| self._stdout.write('#EOF\n') |
| |
| if self._options.pixel_tests and output.image_hash: |
| self._stdout.write('\n') |
| self._stdout.write('ActualHash: %s\n' % output.image_hash) |
| self._stdout.write('ExpectedHash: %s\n' % test_input.image_hash) |
| if output.image_hash != test_input.image_hash: |
| self._stdout.write('Content-Type: image/png\n') |
| self._stdout.write('Content-Length: %s\n' % len(output.image)) |
| self._stdout.write(output.image) |
| self._stdout.write('#EOF\n') |
| self._stdout.flush() |
| self._stderr.write('#EOF\n') |
| self._stderr.flush() |
| |
| if __name__ == '__main__': |
| # Note that the Mock in MockDRT refers to the fact that it is emulating a |
| # real DRT, and as such, it needs access to a real SystemHost, not a MockSystemHost. |
| sys.exit(main(sys.argv[1:], SystemHost(), sys.stdin, sys.stdout, sys.stderr)) |
