diff options
Diffstat (limited to 'WebKitTools/Scripts/webkitpy/layout_tests/test_types/image_diff.py')
| -rw-r--r-- | WebKitTools/Scripts/webkitpy/layout_tests/test_types/image_diff.py | 146 |
1 files changed, 0 insertions, 146 deletions
diff --git a/WebKitTools/Scripts/webkitpy/layout_tests/test_types/image_diff.py b/WebKitTools/Scripts/webkitpy/layout_tests/test_types/image_diff.py deleted file mode 100644 index da466c8..0000000 --- a/WebKitTools/Scripts/webkitpy/layout_tests/test_types/image_diff.py +++ /dev/null @@ -1,146 +0,0 @@ -#!/usr/bin/env python -# Copyright (C) 2010 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. - -"""Compares the image output of a test to the expected image output. - -Compares hashes for the generated and expected images. If the output doesn't -match, returns FailureImageHashMismatch and outputs both hashes into the layout -test results directory. -""" - -from __future__ import with_statement - -import codecs -import errno -import logging -import os -import shutil - -from webkitpy.layout_tests.layout_package import test_failures -from webkitpy.layout_tests.test_types import test_type_base - -# Cache whether we have the image_diff executable available. -_compare_available = True -_compare_msg_printed = False - -_log = logging.getLogger("webkitpy.layout_tests.test_types.image_diff") - - -class ImageDiff(test_type_base.TestTypeBase): - - def _save_baseline_files(self, filename, image, image_hash, - generate_new_baseline): - """Saves new baselines for the PNG and checksum. - - Args: - filename: test filename - image: a image output - image_hash: a checksum of the image - generate_new_baseline: whether to generate a new, platform-specific - baseline, or update the existing one - """ - self._save_baseline_data(filename, image, ".png", encoding=None, - generate_new_baseline=generate_new_baseline) - self._save_baseline_data(filename, image_hash, ".checksum", - encoding="ascii", - generate_new_baseline=generate_new_baseline) - - def _copy_image(self, filename, actual_image, expected_image): - self.write_output_files(filename, '.png', - output=actual_image, expected=expected_image, - encoding=None, print_text_diffs=False) - - def _copy_image_hash(self, filename, actual_image_hash, expected_image_hash): - self.write_output_files(filename, '.checksum', - actual_image_hash, expected_image_hash, - encoding="ascii", print_text_diffs=False) - - def _create_diff_image(self, port, filename, actual_image, expected_image): - """Creates the visual diff of the expected/actual PNGs. - - Returns True if the images are different. - """ - diff_filename = self.output_filename(filename, - self.FILENAME_SUFFIX_COMPARE) - return port.diff_image(actual_image, expected_image, diff_filename) - - def compare_output(self, port, filename, test_args, actual_test_output, - expected_test_output): - """Implementation of CompareOutput that checks the output image and - checksum against the expected files from the LayoutTest directory. - """ - failures = [] - - # If we didn't produce a hash file, this test must be text-only. - if actual_test_output.image_hash is None: - return failures - - # If we're generating a new baseline, we pass. - if test_args.new_baseline or test_args.reset_results: - self._save_baseline_files(filename, actual_test_output.image, - actual_test_output.image_hash, - test_args.new_baseline) - return failures - - if not expected_test_output.image: - # Report a missing expected PNG file. - self._copy_image(filename, actual_test_output.image, expected_image=None) - self._copy_image_hash(filename, actual_test_output.image_hash, - expected_test_output.image_hash) - failures.append(test_failures.FailureMissingImage()) - return failures - if not expected_test_output.image_hash: - # Report a missing expected checksum file. - self._copy_image(filename, actual_test_output.image, - expected_test_output.image) - self._copy_image_hash(filename, actual_test_output.image_hash, - expected_image_hash=None) - failures.append(test_failures.FailureMissingImageHash()) - return failures - - if actual_test_output.image_hash == expected_test_output.image_hash: - # Hash matched (no diff needed, okay to return). - return failures - - self._copy_image(filename, actual_test_output.image, - expected_test_output.image) - self._copy_image_hash(filename, actual_test_output.image_hash, - expected_test_output.image_hash) - - # Even though we only use the result in one codepath below but we - # still need to call CreateImageDiff for other codepaths. - images_are_different = self._create_diff_image(port, filename, - actual_test_output.image, - expected_test_output.image) - if not images_are_different: - failures.append(test_failures.FailureImageHashIncorrect()) - else: - failures.append(test_failures.FailureImageHashMismatch()) - - return failures |