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Unified Diff: ios/chrome/browser/webp_transcode/webp_decoder_unittest.mm

Issue 2526773002: Move iOS ImageFetcher to ios/web/public (Closed)
Patch Set: Rename headers Created 4 years ago
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Index: ios/chrome/browser/webp_transcode/webp_decoder_unittest.mm
diff --git a/ios/chrome/browser/webp_transcode/webp_decoder_unittest.mm b/ios/chrome/browser/webp_transcode/webp_decoder_unittest.mm
deleted file mode 100644
index e7b67f7da910b0be592815eea126361c67a9419e..0000000000000000000000000000000000000000
--- a/ios/chrome/browser/webp_transcode/webp_decoder_unittest.mm
+++ /dev/null
@@ -1,296 +0,0 @@
-// Copyright 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.
-
-#include "ios/chrome/browser/webp_transcode/webp_decoder.h"
-
-#import <CoreGraphics/CoreGraphics.h>
-#import <Foundation/Foundation.h>
-#include <stddef.h>
-#include <stdint.h>
-
-#include <memory>
-
-#include "base/base_paths.h"
-#include "base/files/file_path.h"
-#include "base/ios/ios_util.h"
-#include "base/logging.h"
-#include "base/mac/scoped_cftyperef.h"
-#include "base/mac/scoped_nsobject.h"
-#include "base/macros.h"
-#include "base/memory/ref_counted.h"
-#include "base/path_service.h"
-#include "base/strings/sys_string_conversions.h"
-#include "build/build_config.h"
-#include "testing/gmock/include/gmock/gmock.h"
-#include "testing/gtest/include/gtest/gtest.h"
-
-#if !defined(__has_feature) || !__has_feature(objc_arc)
-#error "This file requires ARC support."
-#endif
-
-namespace webp_transcode {
-namespace {
-
-class WebpDecoderDelegate : public WebpDecoder::Delegate {
- public:
- WebpDecoderDelegate() : image_([[NSMutableData alloc] init]) {}
-
- NSData* GetImage() const { return image_; }
-
- // WebpDecoder::Delegate methods.
- MOCK_METHOD1(OnFinishedDecoding, void(bool success));
- MOCK_METHOD2(SetImageFeatures,
- void(size_t total_size, WebpDecoder::DecodedImageFormat format));
- void OnDataDecoded(NSData* data) override { [image_ appendData:data]; }
-
- private:
- virtual ~WebpDecoderDelegate() {}
-
- base::scoped_nsobject<NSMutableData> image_;
-};
-
-class WebpDecoderTest : public testing::Test {
- public:
- WebpDecoderTest()
- : delegate_(new WebpDecoderDelegate),
- decoder_(new WebpDecoder(delegate_.get())) {}
-
- NSData* LoadImage(const base::FilePath& filename) {
- base::FilePath path;
- PathService::Get(base::DIR_SOURCE_ROOT, &path);
- path = path.AppendASCII("ios/chrome/test/data/webp_transcode")
- .Append(filename);
- return
- [NSData dataWithContentsOfFile:base::SysUTF8ToNSString(path.value())];
- }
-
- std::vector<uint8_t>* DecompressData(NSData* data,
- WebpDecoder::DecodedImageFormat format) {
- base::ScopedCFTypeRef<CGDataProviderRef> provider(
- CGDataProviderCreateWithCFData((CFDataRef)data));
- base::ScopedCFTypeRef<CGImageRef> image;
- switch (format) {
- case WebpDecoder::JPEG:
- image.reset(CGImageCreateWithJPEGDataProvider(
- provider, nullptr, false, kCGRenderingIntentDefault));
- break;
- case WebpDecoder::PNG:
- image.reset(CGImageCreateWithPNGDataProvider(
- provider, nullptr, false, kCGRenderingIntentDefault));
- break;
- case WebpDecoder::TIFF:
- ADD_FAILURE() << "Data already decompressed";
- return nil;
- case WebpDecoder::DECODED_FORMAT_COUNT:
- ADD_FAILURE() << "Unknown format";
- return nil;
- }
- size_t width = CGImageGetWidth(image);
- size_t height = CGImageGetHeight(image);
- base::ScopedCFTypeRef<CGColorSpaceRef> color_space(
- CGColorSpaceCreateDeviceRGB());
- size_t bytes_per_pixel = 4;
- size_t bytes_per_row = bytes_per_pixel * width;
- size_t bits_per_component = 8;
- std::vector<uint8_t>* result =
- new std::vector<uint8_t>(width * height * bytes_per_pixel, 0);
- base::ScopedCFTypeRef<CGContextRef> context(CGBitmapContextCreate(
- &result->front(), width, height, bits_per_component, bytes_per_row,
- color_space, kCGImageAlphaPremultipliedLast | kCGBitmapByteOrder32Big));
- CGContextDrawImage(context, CGRectMake(0, 0, width, height), image);
- // Check that someting has been written in |result|.
- std::vector<uint8_t> zeroes(width * height * bytes_per_pixel, 0);
- EXPECT_NE(0, memcmp(&result->front(), &zeroes.front(), zeroes.size()))
- << "Decompression failed.";
- return result;
- }
-
- // Compares data, allowing an averaged absolute difference of 1.
- bool CompareUncompressedData(const uint8_t* ptr_1,
- const uint8_t* ptr_2,
- size_t size) {
- uint64_t difference = 0;
- for (size_t i = 0; i < size; ++i) {
- // Casting to int to avoid overflow.
- int error = abs(int(ptr_1[i]) - int(ptr_2[i]));
- EXPECT_GE(difference + error, difference)
- << "Image difference too big (overflow).";
- difference += error;
- }
- double average_difference = double(difference) / double(size);
- DLOG(INFO) << "Average image difference: " << average_difference;
- return average_difference < 1.5;
- }
-
- bool CheckCompressedImagesEqual(NSData* data_1,
- NSData* data_2,
- WebpDecoder::DecodedImageFormat format) {
- std::unique_ptr<std::vector<uint8_t>> uncompressed_1(
- DecompressData(data_1, format));
- std::unique_ptr<std::vector<uint8_t>> uncompressed_2(
- DecompressData(data_2, format));
- if (uncompressed_1->size() != uncompressed_2->size()) {
- DLOG(ERROR) << "Image sizes don't match";
- return false;
- }
- return CompareUncompressedData(&uncompressed_1->front(),
- &uncompressed_2->front(),
- uncompressed_1->size());
- }
-
- bool CheckTiffImagesEqual(NSData* image_1, NSData* image_2) {
- if ([image_1 length] != [image_2 length]) {
- DLOG(ERROR) << "Image lengths don't match";
- return false;
- }
- // Compare headers.
- const size_t kHeaderSize = WebpDecoder::GetHeaderSize();
- NSData* header_1 = [image_1 subdataWithRange:NSMakeRange(0, kHeaderSize)];
- NSData* header_2 = [image_2 subdataWithRange:NSMakeRange(0, kHeaderSize)];
- if (!header_1 || !header_2)
- return false;
- if (![header_1 isEqualToData:header_2]) {
- DLOG(ERROR) << "Headers don't match.";
- return false;
- }
- return CompareUncompressedData(
- static_cast<const uint8_t*>([image_1 bytes]) + kHeaderSize,
- static_cast<const uint8_t*>([image_2 bytes]) + kHeaderSize,
- [image_1 length] - kHeaderSize);
- }
-
- protected:
- scoped_refptr<WebpDecoderDelegate> delegate_;
- scoped_refptr<WebpDecoder> decoder_;
-};
-
-} // namespace
-
-TEST_F(WebpDecoderTest, DecodeToJpeg) {
-// TODO(droger): This test fails on iOS 9 x64 devices. http://crbug.com/523235
-#if defined(OS_IOS) && defined(ARCH_CPU_ARM64) && !TARGET_IPHONE_SIMULATOR
- if (base::ios::IsRunningOnIOS9OrLater())
- return;
-#endif
- // Load a WebP image from disk.
- base::scoped_nsobject<NSData> webp_image(
- LoadImage(base::FilePath("test.webp")));
- ASSERT_TRUE(webp_image != nil);
- // Load reference image.
- base::scoped_nsobject<NSData> jpg_image(
- LoadImage(base::FilePath("test.jpg")));
- ASSERT_TRUE(jpg_image != nil);
- // Convert to JPEG.
- EXPECT_CALL(*delegate_, OnFinishedDecoding(true)).Times(1);
- EXPECT_CALL(*delegate_, SetImageFeatures(testing::_, WebpDecoder::JPEG))
- .Times(1);
- decoder_->OnDataReceived(webp_image);
- // Compare to reference image.
- EXPECT_TRUE(CheckCompressedImagesEqual(jpg_image, delegate_->GetImage(),
- WebpDecoder::JPEG));
-}
-
-TEST_F(WebpDecoderTest, DecodeToPng) {
-// TODO(droger): This test fails on iOS 9 x64 devices. http://crbug.com/523235
-#if defined(OS_IOS) && defined(ARCH_CPU_ARM64) && !TARGET_IPHONE_SIMULATOR
- if (base::ios::IsRunningOnIOS9OrLater())
- return;
-#endif
- // Load a WebP image from disk.
- base::scoped_nsobject<NSData> webp_image(
- LoadImage(base::FilePath("test_alpha.webp")));
- ASSERT_TRUE(webp_image != nil);
- // Load reference image.
- base::scoped_nsobject<NSData> png_image(
- LoadImage(base::FilePath("test_alpha.png")));
- ASSERT_TRUE(png_image != nil);
- // Convert to PNG.
- EXPECT_CALL(*delegate_, OnFinishedDecoding(true)).Times(1);
- EXPECT_CALL(*delegate_, SetImageFeatures(testing::_, WebpDecoder::PNG))
- .Times(1);
- decoder_->OnDataReceived(webp_image);
- // Compare to reference image.
- EXPECT_TRUE(CheckCompressedImagesEqual(png_image, delegate_->GetImage(),
- WebpDecoder::PNG));
-}
-
-TEST_F(WebpDecoderTest, DecodeToTiff) {
-// TODO(droger): This test fails on iOS 9 x64 devices. http://crbug.com/523235
-#if defined(OS_IOS) && defined(ARCH_CPU_ARM64) && !TARGET_IPHONE_SIMULATOR
- if (base::ios::IsRunningOnIOS9OrLater())
- return;
-#endif
- // Load a WebP image from disk.
- base::scoped_nsobject<NSData> webp_image(
- LoadImage(base::FilePath("test_small.webp")));
- ASSERT_TRUE(webp_image != nil);
- // Load reference image.
- base::scoped_nsobject<NSData> tiff_image(
- LoadImage(base::FilePath("test_small.tiff")));
- ASSERT_TRUE(tiff_image != nil);
- // Convert to TIFF.
- EXPECT_CALL(*delegate_, OnFinishedDecoding(true)).Times(1);
- EXPECT_CALL(*delegate_,
- SetImageFeatures([tiff_image length], WebpDecoder::TIFF))
- .Times(1);
- decoder_->OnDataReceived(webp_image);
- // Compare to reference image.
- EXPECT_TRUE(CheckTiffImagesEqual(tiff_image, delegate_->GetImage()));
-}
-
-TEST_F(WebpDecoderTest, StreamedDecode) {
-// TODO(droger): This test fails on iOS 9 x64 devices. http://crbug.com/523235
-#if defined(OS_IOS) && defined(ARCH_CPU_ARM64) && !TARGET_IPHONE_SIMULATOR
- if (base::ios::IsRunningOnIOS9OrLater())
- return;
-#endif
- // Load a WebP image from disk.
- base::scoped_nsobject<NSData> webp_image(
- LoadImage(base::FilePath("test.webp")));
- ASSERT_TRUE(webp_image != nil);
- // Load reference image.
- base::scoped_nsobject<NSData> jpg_image(
- LoadImage(base::FilePath("test.jpg")));
- ASSERT_TRUE(jpg_image != nil);
- // Convert to JPEG in chunks.
- EXPECT_CALL(*delegate_, OnFinishedDecoding(true)).Times(1);
- EXPECT_CALL(*delegate_, SetImageFeatures(testing::_, WebpDecoder::JPEG))
- .Times(1);
- const size_t kChunkSize = 10;
- unsigned int num_chunks = 0;
- while ([webp_image length] > kChunkSize) {
- base::scoped_nsobject<NSData> chunk(
- [webp_image subdataWithRange:NSMakeRange(0, kChunkSize)]);
- decoder_->OnDataReceived(chunk);
- webp_image.reset([webp_image
- subdataWithRange:NSMakeRange(kChunkSize,
- [webp_image length] - kChunkSize)]);
- ++num_chunks;
- }
- if ([webp_image length] > 0u) {
- decoder_->OnDataReceived(webp_image);
- ++num_chunks;
- }
- ASSERT_GT(num_chunks, 3u) << "Not enough chunks";
- // Compare to reference image.
- EXPECT_TRUE(CheckCompressedImagesEqual(jpg_image, delegate_->GetImage(),
- WebpDecoder::JPEG));
-}
-
-TEST_F(WebpDecoderTest, InvalidFormat) {
- EXPECT_CALL(*delegate_, OnFinishedDecoding(false)).Times(1);
- const char dummy_image[] = "(>'-')> <('-'<) ^('-')^ <('-'<) (>'-')>";
- base::scoped_nsobject<NSData> data(
- [[NSData alloc] initWithBytes:dummy_image length:arraysize(dummy_image)]);
- decoder_->OnDataReceived(data);
- EXPECT_EQ(0u, [delegate_->GetImage() length]);
-}
-
-TEST_F(WebpDecoderTest, DecodeAborted) {
- EXPECT_CALL(*delegate_, OnFinishedDecoding(false)).Times(1);
- decoder_->Stop();
- EXPECT_EQ(0u, [delegate_->GetImage() length]);
-}
-
-} // namespace webp_transcode
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