chromium/third_party/blink/renderer/platform/image-decoders/gif/gif_image_decoder_test.cc

// Copyright 2013 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifdef UNSAFE_BUFFERS_BUILD
// TODO(crbug.com/351564777): Remove this and convert code to safer constructs.
#pragma allow_unsafe_buffers
#endif

#include "third_party/blink/renderer/platform/image-decoders/gif/gif_image_decoder.h"

#include <memory>
#include "testing/gtest/include/gtest/gtest.h"
#include "third_party/blink/public/platform/web_data.h"
#include "third_party/blink/renderer/platform/image-decoders/image_decoder_test_helpers.h"
#include "third_party/blink/renderer/platform/wtf/shared_buffer.h"
#include "third_party/blink/renderer/platform/wtf/vector.h"

namespace blink {

namespace {

const char kWebTestsResourcesDir[] = …;

std::unique_ptr<ImageDecoder> CreateDecoder() { … }

void TestRepetitionCount(const char* dir,
                         const char* file,
                         int expected_repetition_count) { … }

}  // anonymous namespace

TEST(GIFImageDecoderTest, decodeTwoFrames) { … }

TEST(GIFImageDecoderTest, crbug779261) { … }

TEST(GIFImageDecoderTest, parseAndDecode) { … }

TEST(GIFImageDecoderTest, parseByteByByte) { … }

TEST(GIFImageDecoderTest, parseAndDecodeByteByByte) { … }

TEST(GIFImageDecoderTest, brokenSecondFrame) { … }

TEST(GIFImageDecoderTest, progressiveDecode) { … }

TEST(GIFImageDecoderTest, allDataReceivedTruncation) { … }

TEST(GIFImageDecoderTest, frameIsComplete) { … }

TEST(GIFImageDecoderTest, frameIsCompleteLoading) { … }

TEST(GIFImageDecoderTest, badTerminator) { … }

TEST(GIFImageDecoderTest, updateRequiredPreviousFrameAfterFirstDecode) { … }

TEST(GIFImageDecoderTest, randomFrameDecode) { … }

TEST(GIFImageDecoderTest, randomDecodeAfterClearFrameBufferCache) { … }

// The first LZW codes in the image are invalid values that try to create a loop
// in the dictionary. Decoding should fail, but not infinitely loop or corrupt
// memory.
TEST(GIFImageDecoderTest, badInitialCode) { … }

// The image has an invalid LZW code that exceeds dictionary size. Decoding
// should fail.
TEST(GIFImageDecoderTest, badCode) { … }

TEST(GIFImageDecoderTest, invalidDisposalMethod) { … }

TEST(GIFImageDecoderTest, firstFrameHasGreaterSizeThanScreenSize) { … }

TEST(GIFImageDecoderTest, verifyRepetitionCount) { … }

TEST(GIFImageDecoderTest, repetitionCountChangesWhenSeen) { … }

TEST(GIFImageDecoderTest, bitmapAlphaType) { … }

namespace {
// Needed to exercise ImageDecoder::SetMemoryAllocator, but still does the
// default allocation.
class Allocator final : public SkBitmap::Allocator { … };
}  // namespace

// Ensure that calling SetMemoryAllocator does not short-circuit
// InitializeNewFrame.
TEST(GIFImageDecoderTest, externalAllocator) { … }

TEST(GIFImageDecoderTest, recursiveDecodeFailure) { … }

TEST(GIFImageDecoderTest, errorFrame) { … }

}  // namespace blink