| // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef CONTENT_TEST_IMAGE_DECODER_TEST_H_ |
| #define CONTENT_TEST_IMAGE_DECODER_TEST_H_ |
| |
| #include <stdint.h> |
| |
| #include <string> |
| #include <vector> |
| |
| #include "base/compiler_specific.h" |
| #include "base/files/file_path.h" |
| #include "base/macros.h" |
| |
| #include "testing/gtest/include/gtest/gtest.h" |
| |
| namespace blink { class WebImageDecoder; } |
| |
| // Decodes a handful of image files and compares their MD5 sums to the stored |
| // sums on disk. To recalculate the MD5 sums, uncomment the CALCULATE_MD5_SUMS |
| // #define in the .cc file. |
| // |
| // 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. |
| |
| enum ImageDecoderTestFileSelection { |
| TEST_ALL, |
| TEST_SMALLER, |
| TEST_BIGGER, |
| }; |
| |
| // Returns the path the decoded data is saved at. |
| base::FilePath GetMD5SumPath(const base::FilePath& path); |
| |
| class ImageDecoderTest : public testing::Test { |
| public: |
| explicit ImageDecoderTest(const std::string& format) : format_(format) { } |
| |
| protected: |
| void SetUp() override; |
| |
| // Returns the vector of image files for testing. |
| std::vector<base::FilePath> GetImageFiles() const; |
| |
| // Returns true if the image is bogus and should not be successfully decoded. |
| bool ShouldImageFail(const base::FilePath& path) const; |
| |
| // Tests if decoder decodes image at image_path with underlying frame at |
| // index desired_frame_index. The md5_sum_path is needed if the test is not |
| // asked to generate one, i.e. if #define CALCULATE_MD5_SUMS is not set. |
| void TestWebKitImageDecoder(const base::FilePath& image_path, |
| const base::FilePath& md5_sum_path, |
| int desired_frame_index) const; |
| |
| // Verifies each of the test image files is decoded correctly and matches the |
| // expected state. |file_selection| and |threshold| can be used to select |
| // files to test based on file size. |
| // If just the MD5 sum is wanted, this skips chunking. |
| void TestDecoding(ImageDecoderTestFileSelection file_selection, |
| const int64_t threshold); |
| |
| void TestDecoding() { |
| TestDecoding(TEST_ALL, 0); |
| } |
| |
| // Creates WebKit API's decoder. |
| virtual blink::WebImageDecoder* CreateWebKitImageDecoder() const = 0; |
| |
| // The format to be decoded, like "bmp" or "ico". |
| std::string format_; |
| |
| protected: |
| const base::FilePath& data_dir() const { return data_dir_; } |
| |
| private: |
| // Path to the test files. |
| base::FilePath data_dir_; |
| |
| DISALLOW_COPY_AND_ASSIGN(ImageDecoderTest); |
| }; |
| |
| #endif // CONTENT_TEST_IMAGE_DECODER_TEST_H_ |