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Diffstat (limited to 'webkit/tools/test_shell/image_decoder_unittest.h')
-rw-r--r-- | webkit/tools/test_shell/image_decoder_unittest.h | 103 |
1 files changed, 103 insertions, 0 deletions
diff --git a/webkit/tools/test_shell/image_decoder_unittest.h b/webkit/tools/test_shell/image_decoder_unittest.h new file mode 100644 index 0000000..21a0f71 --- /dev/null +++ b/webkit/tools/test_shell/image_decoder_unittest.h @@ -0,0 +1,103 @@ +// Copyright 2008, 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. + +#include <vector> + +#include "base/basictypes.h" +#include "testing/gtest/include/gtest/gtest.h" + +#include "Vector.h" +#include "ImageDecoder.h" + +// If CALCULATE_MD5_SUMS is not defined, then this test decodes a handful of +// image files and compares their MD5 sums to the stored sums on disk. +// +// To recalculate the MD5 sums, uncommment CALCULATE_MD5_SUMS. +// +// The image files and corresponding MD5 sums live in the directory +// chrome/test/data/*_decoder (where "*" is the format being tested). +// +// Note: The MD5 sums calculated in this test by little- and big-endian systems +// will differ, since no endianness correction is done. If we start compiling +// for big endian machines this should be fixed. + +//#define CALCULATE_MD5_SUMS + +// Reads the contents of the specified file into the specified vector. +void ReadFileToVector(const std::wstring& path, Vector<char>* contents); + +// Returns the path the decoded data is saved at. +std::wstring GetMD5SumPath(const std::wstring& path); + +#ifdef CALCULATE_MD5_SUMS +// Saves the MD5 sum to the specified file. +void SaveMD5Sum(const std::wstring& path, WebCore::RGBA32Buffer* buffer); +#else +// Verifies the image. |path| identifies the path the image was loaded from. +void VerifyImage(WebCore::ImageDecoder* decoder, + const std::wstring& path, + const std::wstring& md5_sum_path); +#endif + +class ImageDecoderTest : public testing::Test { + public: + explicit ImageDecoderTest(const std::wstring& format) : format_(format) { } + + protected: + virtual void SetUp(); + + // Returns the vector of image files for testing. + std::vector<std::wstring> GetImageFiles() const; + + // Returns true if the image is bogus and should not be successfully decoded. + bool ShouldImageFail(const std::wstring& path) const; + + // Verifies each of the test image files is decoded correctly and matches the + // expected state. + void TestDecoding() const; + +#ifndef CALCULATE_MD5_SUMS + // Verifies that decoding still works correctly when the files are split into + // pieces at a random point. + void TestChunkedDecoding() const; +#endif + + // Returns the correct type of image decoder for this test. + virtual WebCore::ImageDecoder* CreateDecoder() const = 0; + + // The format to be decoded, like "bmp" or "ico". + std::wstring format_; + + protected: + // Path to the test files. + std::wstring data_dir_; + + private: + DISALLOW_EVIL_CONSTRUCTORS(ImageDecoderTest); +}; |