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// Copyright 2019 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 "third_party/blink/renderer/core/loader/threaded_icon_loader.h"
#include "base/optional.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "third_party/blink/public/platform/web_size.h"
#include "third_party/blink/public/platform/web_url.h"
#include "third_party/blink/public/platform/web_url_loader_mock_factory.h"
#include "third_party/blink/renderer/core/execution_context/execution_context.h"
#include "third_party/blink/renderer/core/testing/page_test_base.h"
#include "third_party/blink/renderer/platform/testing/histogram_tester.h"
#include "third_party/blink/renderer/platform/testing/testing_platform_support.h"
#include "third_party/blink/renderer/platform/testing/unit_test_helpers.h"
#include "third_party/blink/renderer/platform/testing/url_test_helpers.h"
#include "third_party/blink/renderer/platform/weborigin/kurl.h"
#include "third_party/blink/renderer/platform/wtf/functional.h"
#include "third_party/blink/renderer/platform/wtf/text/wtf_string.h"
namespace blink {
namespace {
constexpr char kIconLoaderBaseUrl[] = "http://test.com/";
constexpr char kIconLoaderBaseDir[] = "notifications/";
constexpr char kIconLoaderIcon100x100[] = "100x100.png";
constexpr char kIconLoaderInvalidIcon[] = "file.txt";
class ThreadedIconLoaderTest : public PageTestBase {
public:
void SetUp() override {
PageTestBase::SetUp(IntSize());
GetDocument().SetBaseURLOverride(KURL(kIconLoaderBaseUrl));
}
void TearDown() override {
platform_->GetURLLoaderMockFactory()
->UnregisterAllURLsAndClearMemoryCache();
}
// Registers a mocked url. When fetched, |fileName| will be loaded from the
// test data directory.
KURL RegisterMockedURL(const String& file_name) {
return url_test_helpers::RegisterMockedURLLoadFromBase(
kIconLoaderBaseUrl, test::CoreTestDataPath(kIconLoaderBaseDir),
file_name, "image/png");
}
std::pair<SkBitmap, double> LoadIcon(
const KURL& url,
base::Optional<gfx::Size> resize_dimensions = base::nullopt) {
auto* icon_loader = MakeGarbageCollected<ThreadedIconLoader>();
ResourceRequest resource_request(url);
resource_request.SetRequestContext(mojom::RequestContextType::IMAGE);
resource_request.SetPriority(ResourceLoadPriority::kMedium);
SkBitmap icon;
double resize_scale;
base::RunLoop run_loop;
icon_loader->Start(
GetDocument().ToExecutionContext(), resource_request, resize_dimensions,
WTF::Bind(&ThreadedIconLoaderTest::DidGetIcon, WTF::Unretained(this),
run_loop.QuitClosure(), WTF::Unretained(&icon),
WTF::Unretained(&resize_scale)));
platform_->GetURLLoaderMockFactory()->ServeAsynchronousRequests();
run_loop.Run();
return {icon, resize_scale};
}
private:
void DidGetIcon(base::OnceClosure quit_closure,
SkBitmap* out_icon,
double* out_resize_scale,
SkBitmap icon,
double resize_scale) {
*out_icon = std::move(icon);
*out_resize_scale = resize_scale;
std::move(quit_closure).Run();
}
ScopedTestingPlatformSupport<TestingPlatformSupport> platform_;
};
TEST_F(ThreadedIconLoaderTest, LoadIcon) {
auto result = LoadIcon(RegisterMockedURL(kIconLoaderIcon100x100));
const SkBitmap& icon = result.first;
double resize_scale = result.second;
ASSERT_FALSE(icon.isNull());
EXPECT_FALSE(icon.drawsNothing());
EXPECT_EQ(icon.width(), 100);
EXPECT_EQ(icon.height(), 100);
EXPECT_EQ(resize_scale, 1.0);
}
TEST_F(ThreadedIconLoaderTest, LoadAndDownscaleIcon) {
gfx::Size dimensions = {50, 50};
auto result = LoadIcon(RegisterMockedURL(kIconLoaderIcon100x100), dimensions);
const SkBitmap& icon = result.first;
double resize_scale = result.second;
ASSERT_FALSE(icon.isNull());
EXPECT_FALSE(icon.drawsNothing());
EXPECT_EQ(icon.width(), 50);
EXPECT_EQ(icon.height(), 50);
EXPECT_EQ(resize_scale, 0.5);
}
TEST_F(ThreadedIconLoaderTest, LoadIconAndUpscaleIgnored) {
gfx::Size dimensions = {500, 500};
auto result = LoadIcon(RegisterMockedURL(kIconLoaderIcon100x100), dimensions);
const SkBitmap& icon = result.first;
double resize_scale = result.second;
ASSERT_FALSE(icon.isNull());
EXPECT_FALSE(icon.drawsNothing());
EXPECT_EQ(icon.width(), 100);
EXPECT_EQ(icon.height(), 100);
EXPECT_EQ(resize_scale, 1.0);
}
TEST_F(ThreadedIconLoaderTest, InvalidResourceReturnsNullIcon) {
auto result = LoadIcon(RegisterMockedURL(kIconLoaderInvalidIcon));
const SkBitmap& icon = result.first;
double resize_scale = result.second;
ASSERT_TRUE(icon.isNull());
EXPECT_EQ(resize_scale, -1.0);
}
TEST_F(ThreadedIconLoaderTest, LoadTimeRecordedByUMA) {
HistogramTester histogram_tester;
LoadIcon(RegisterMockedURL(kIconLoaderIcon100x100));
histogram_tester.ExpectTotalCount("Blink.ThreadedIconLoader.LoadTime", 1);
}
TEST_F(ThreadedIconLoaderTest, ResizeFailed) {
gfx::Size dimensions = {25, 0};
auto result = LoadIcon(RegisterMockedURL(kIconLoaderIcon100x100), dimensions);
const SkBitmap& icon = result.first;
double resize_scale = result.second;
// Resizing should have failed so the original will be returned.
ASSERT_FALSE(icon.isNull());
EXPECT_EQ(icon.width(), 100);
EXPECT_EQ(icon.height(), 100);
EXPECT_EQ(resize_scale, 1.0);
}
} // namespace
} // namespace blink
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