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// Copyright 2014 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 "components/suggestions/image_manager.h"
#include <memory>
#include <string>
#include "base/files/file_path.h"
#include "base/memory/ptr_util.h"
#include "base/run_loop.h"
#include "base/test/scoped_task_environment.h"
#include "base/threading/thread_task_runner_handle.h"
#include "components/image_fetcher/core/image_fetcher.h"
#include "components/image_fetcher/core/image_fetcher_delegate.h"
#include "components/leveldb_proto/proto_database.h"
#include "components/leveldb_proto/testing/fake_db.h"
#include "components/suggestions/image_encoder.h"
#include "components/suggestions/proto/suggestions.pb.h"
#include "net/traffic_annotation/network_traffic_annotation_test_helper.h"
#include "testing/gmock/include/gmock/gmock.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "ui/gfx/geometry/size.h"
#include "ui/gfx/image/image.h"
#include "ui/gfx/image/image_skia.h"
#include "url/gurl.h"
using ::testing::Return;
using ::testing::StrictMock;
using ::testing::_;
using image_fetcher::ImageFetcher;
using image_fetcher::ImageFetcherDelegate;
namespace suggestions {
const char kTestUrl1[] = "http://go.com/";
const char kTestUrl2[] = "http://goal.com/";
const char kTestImagePath[] = "files/image_decoding/droids.png";
const char kInvalidImagePath[] = "files/DOESNOTEXIST";
using leveldb_proto::test::FakeDB;
typedef std::map<std::string, ImageData> EntryMap;
void AddEntry(const ImageData& d, EntryMap* map) { (*map)[d.url()] = d; }
class MockImageFetcher : public ImageFetcher {
public:
MockImageFetcher() {}
virtual ~MockImageFetcher() {}
MOCK_METHOD4(StartOrQueueNetworkRequest,
void(const std::string&,
const GURL&,
const ImageFetcherCallback&,
const net::NetworkTrafficAnnotationTag&));
MOCK_METHOD1(SetImageFetcherDelegate, void(ImageFetcherDelegate*));
MOCK_METHOD1(SetDataUseServiceName, void(DataUseServiceName));
MOCK_METHOD1(SetImageDownloadLimit,
void(base::Optional<int64_t> max_download_bytes));
MOCK_METHOD1(SetDesiredImageFrameSize, void(const gfx::Size&));
MOCK_METHOD0(GetImageDecoder, image_fetcher::ImageDecoder*());
};
class ImageManagerTest : public testing::Test {
public:
ImageManagerTest()
: mock_image_fetcher_(NULL),
num_callback_null_called_(0),
num_callback_valid_called_(0) {}
void SetUp() override {
fake_db_ = new FakeDB<ImageData>(&db_model_);
image_manager_.reset(CreateImageManager(fake_db_));
}
void TearDown() override {
fake_db_ = NULL;
db_model_.clear();
image_manager_.reset();
}
void InitializeDefaultImageMapAndDatabase(ImageManager* image_manager,
FakeDB<ImageData>* fake_db) {
CHECK(image_manager);
CHECK(fake_db);
suggestions::SuggestionsProfile suggestions_profile;
suggestions::ChromeSuggestion* suggestion =
suggestions_profile.add_suggestions();
suggestion->set_url(kTestUrl1);
suggestion->set_thumbnail(kTestImagePath);
image_manager->Initialize(suggestions_profile);
// Initialize empty database.
fake_db->InitCallback(true);
fake_db->LoadCallback(true);
}
ImageData GetSampleImageData(const std::string& url) {
// Create test bitmap.
SkBitmap bm;
// Being careful with the Bitmap. There are memory-related issue in
// crbug.com/101781.
bm.allocN32Pixels(4, 4);
bm.eraseColor(SK_ColorRED);
ImageData data;
data.set_url(url);
std::vector<unsigned char> encoded;
EXPECT_TRUE(EncodeSkBitmapToJPEG(bm, &encoded));
data.set_data(std::string(encoded.begin(), encoded.end()));
return data;
}
void OnImageAvailable(base::RunLoop* loop, const GURL& url,
const gfx::Image& image) {
if (!image.IsEmpty()) {
num_callback_valid_called_++;
} else {
num_callback_null_called_++;
}
loop->Quit();
}
ImageManager* CreateImageManager(FakeDB<ImageData>* fake_db) {
mock_image_fetcher_ = new StrictMock<MockImageFetcher>();
EXPECT_CALL(*mock_image_fetcher_, SetImageFetcherDelegate(_));
return new ImageManager(base::WrapUnique(mock_image_fetcher_),
base::WrapUnique(fake_db),
FakeDB<ImageData>::DirectoryForTestDB(),
base::ThreadTaskRunnerHandle::Get());
}
EntryMap db_model_;
// Owned by the ImageManager under test.
FakeDB<ImageData>* fake_db_;
MockImageFetcher* mock_image_fetcher_;
int num_callback_null_called_;
int num_callback_valid_called_;
base::test::ScopedTaskEnvironment scoped_task_environment_;
// Under test.
std::unique_ptr<ImageManager> image_manager_;
};
TEST_F(ImageManagerTest, InitializeTest) {
SuggestionsProfile suggestions_profile;
ChromeSuggestion* suggestion = suggestions_profile.add_suggestions();
suggestion->set_url(kTestUrl1);
suggestion->set_thumbnail(kTestImagePath);
image_manager_->Initialize(suggestions_profile);
GURL output;
EXPECT_TRUE(image_manager_->GetImageURL(GURL(kTestUrl1), &output));
EXPECT_EQ(GURL(kTestImagePath), output);
EXPECT_FALSE(image_manager_->GetImageURL(GURL("http://b.com"), &output));
}
TEST_F(ImageManagerTest, AddImageURL) {
InitializeDefaultImageMapAndDatabase(image_manager_.get(), fake_db_);
GURL output;
// Try a URL the ImageManager doesn't know about.
ASSERT_FALSE(image_manager_->GetImageURL(GURL(kTestUrl2), &output));
// Explicitly add the URL and try again.
image_manager_->AddImageURL(GURL(kTestUrl2), GURL(kTestImagePath));
EXPECT_TRUE(image_manager_->GetImageURL(GURL(kTestUrl2), &output));
EXPECT_EQ(GURL(kTestImagePath), output);
}
TEST_F(ImageManagerTest, GetImageForURLNetwork) {
InitializeDefaultImageMapAndDatabase(image_manager_.get(), fake_db_);
// We expect the fetcher to go to network and call the callback.
EXPECT_CALL(*mock_image_fetcher_, StartOrQueueNetworkRequest(_, _, _, _));
// Fetch existing URL.
base::RunLoop run_loop;
image_manager_->GetImageForURL(GURL(kTestUrl1),
base::Bind(&ImageManagerTest::OnImageAvailable,
base::Unretained(this), &run_loop));
// Will not go to network and use the fetcher since URL is invalid.
// Fetch non-existing URL.
image_manager_->GetImageForURL(GURL(kTestUrl2),
base::Bind(&ImageManagerTest::OnImageAvailable,
base::Unretained(this), &run_loop));
run_loop.Run();
EXPECT_EQ(1, num_callback_null_called_);
}
TEST_F(ImageManagerTest, GetImageForURLNetworkCacheHit) {
SuggestionsProfile suggestions_profile;
ChromeSuggestion* suggestion = suggestions_profile.add_suggestions();
suggestion->set_url(kTestUrl1);
// The URL we set is invalid, to show that it will fail from network.
suggestion->set_thumbnail(kInvalidImagePath);
// Create the ImageManager with an added entry in the database.
AddEntry(GetSampleImageData(kTestUrl1), &db_model_);
FakeDB<ImageData>* fake_db = new FakeDB<ImageData>(&db_model_);
image_manager_.reset(CreateImageManager(fake_db));
image_manager_->Initialize(suggestions_profile);
fake_db->InitCallback(true);
fake_db->LoadCallback(true);
// Expect something in the cache.
auto encoded_image =
image_manager_->GetEncodedImageFromCache(GURL(kTestUrl1));
EXPECT_TRUE(encoded_image);
base::RunLoop run_loop;
image_manager_->GetImageForURL(GURL(kTestUrl1),
base::Bind(&ImageManagerTest::OnImageAvailable,
base::Unretained(this), &run_loop));
run_loop.Run();
EXPECT_EQ(0, num_callback_null_called_);
EXPECT_EQ(1, num_callback_valid_called_);
}
} // namespace suggestions
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