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| 1 // Copyright 2017 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. |
| 4 |
| 5 #include "components/wallpaper/wallpaper_color_calculator.h" |
| 6 |
| 7 #include <memory> |
| 8 |
| 9 #include "base/macros.h" |
| 10 #include "base/memory/ptr_util.h" |
| 11 #include "base/test/null_task_runner.h" |
| 12 #include "base/test/test_mock_time_task_runner.h" |
| 13 #include "base/threading/sequenced_task_runner_handle.h" |
| 14 #include "components/wallpaper/wallpaper_color_calculator_observer.h" |
| 15 #include "skia/ext/platform_canvas.h" |
| 16 #include "testing/gtest/include/gtest/gtest.h" |
| 17 #include "third_party/skia/include/core/SkBitmap.h" |
| 18 #include "third_party/skia/include/core/SkColor.h" |
| 19 #include "ui/gfx/canvas.h" |
| 20 #include "ui/gfx/color_analysis.h" |
| 21 #include "ui/gfx/geometry/rect.h" |
| 22 #include "ui/gfx/geometry/size.h" |
| 23 #include "ui/gfx/image/image_skia.h" |
| 24 |
| 25 namespace wallpaper { |
| 26 namespace { |
| 27 |
| 28 const SkColor kDefaultColor = SK_ColorTRANSPARENT; |
| 29 |
| 30 class TestWallpaperColorCalculatorObserver |
| 31 : public WallpaperColorCalculatorObserver { |
| 32 public: |
| 33 TestWallpaperColorCalculatorObserver() {} |
| 34 |
| 35 ~TestWallpaperColorCalculatorObserver() override {} |
| 36 |
| 37 bool WasNotified() const { return notified_; } |
| 38 |
| 39 // WallpaperColorCalculatorObserver: |
| 40 void OnColorCalculationComplete() override { notified_ = true; } |
| 41 |
| 42 private: |
| 43 bool notified_ = false; |
| 44 |
| 45 DISALLOW_COPY_AND_ASSIGN(TestWallpaperColorCalculatorObserver); |
| 46 }; |
| 47 |
| 48 } // namespace |
| 49 |
| 50 class WallPaperColorCalculatorTest : public testing::Test { |
| 51 public: |
| 52 WallPaperColorCalculatorTest(); |
| 53 ~WallPaperColorCalculatorTest() override; |
| 54 |
| 55 protected: |
| 56 void InstallTaskRunner(scoped_refptr<base::SequencedTaskRunner> task_runner); |
| 57 |
| 58 gfx::ImageSkia image_; |
| 59 |
| 60 std::unique_ptr<WallpaperColorCalculator> calculator_; |
| 61 |
| 62 scoped_refptr<base::TestMockTimeTaskRunner> task_runner_; |
| 63 |
| 64 TestWallpaperColorCalculatorObserver observer_; |
| 65 |
| 66 private: |
| 67 // Required by PostTaskAndReplyImpl. |
| 68 std::unique_ptr<base::SequencedTaskRunnerHandle> task_runner_handle_; |
| 69 |
| 70 DISALLOW_COPY_AND_ASSIGN(WallPaperColorCalculatorTest); |
| 71 }; |
| 72 |
| 73 WallPaperColorCalculatorTest::WallPaperColorCalculatorTest() |
| 74 : task_runner_(new base::TestMockTimeTaskRunner()) { |
| 75 // Creates an |image_| that will yield a non-default prominent color. |
| 76 const gfx::Size kImageSize(300, 200); |
| 77 const SkColor kGray = SkColorSetRGB(10, 10, 10); |
| 78 const SkColor kVibrantGreen = SkColorSetRGB(25, 200, 25); |
| 79 |
| 80 gfx::Canvas canvas(kImageSize, 1.0f, true); |
| 81 canvas.FillRect(gfx::Rect(kImageSize), kGray); |
| 82 canvas.FillRect(gfx::Rect(0, 1, 300, 1), kVibrantGreen); |
| 83 |
| 84 SkBitmap bitmap = skia::ReadPixels(canvas.sk_canvas()); |
| 85 image_ = gfx::ImageSkia::CreateFrom1xBitmap(bitmap); |
| 86 |
| 87 calculator_ = base::MakeUnique<WallpaperColorCalculator>( |
| 88 image_, color_utils::LumaRange::NORMAL, |
| 89 color_utils::SaturationRange::VIBRANT, nullptr); |
| 90 calculator_->AddObserver(&observer_); |
| 91 |
| 92 InstallTaskRunner(task_runner_); |
| 93 } |
| 94 |
| 95 WallPaperColorCalculatorTest::~WallPaperColorCalculatorTest() {} |
| 96 |
| 97 void WallPaperColorCalculatorTest::InstallTaskRunner( |
| 98 scoped_refptr<base::SequencedTaskRunner> task_runner) { |
| 99 task_runner_handle_.reset(); |
| 100 task_runner_handle_ = |
| 101 base::MakeUnique<base::SequencedTaskRunnerHandle>(task_runner); |
| 102 calculator_->SetTaskRunnerForTest(task_runner); |
| 103 } |
| 104 |
| 105 TEST_F(WallPaperColorCalculatorTest, |
| 106 StartCalculationReturnsFalseWhenPostingTaskFails) { |
| 107 scoped_refptr<base::NullTaskRunner> task_runner = new base::NullTaskRunner(); |
| 108 InstallTaskRunner(task_runner); |
| 109 calculator_->set_prominent_color_for_test(SK_ColorBLACK); |
| 110 |
| 111 EXPECT_FALSE(calculator_->StartCalculation()); |
| 112 EXPECT_EQ(kDefaultColor, calculator_->prominent_color()); |
| 113 } |
| 114 |
| 115 TEST_F(WallPaperColorCalculatorTest, ObserverNotifiedOnSuccessfulCalculation) { |
| 116 EXPECT_FALSE(observer_.WasNotified()); |
| 117 |
| 118 EXPECT_TRUE(calculator_->StartCalculation()); |
| 119 EXPECT_FALSE(observer_.WasNotified()); |
| 120 |
| 121 task_runner_->RunUntilIdle(); |
| 122 EXPECT_TRUE(observer_.WasNotified()); |
| 123 } |
| 124 |
| 125 TEST_F(WallPaperColorCalculatorTest, ColorUpdatedOnSuccessfulCalculation) { |
| 126 calculator_->set_prominent_color_for_test(kDefaultColor); |
| 127 |
| 128 EXPECT_TRUE(calculator_->StartCalculation()); |
| 129 EXPECT_EQ(kDefaultColor, calculator_->prominent_color()); |
| 130 |
| 131 task_runner_->RunUntilIdle(); |
| 132 EXPECT_NE(kDefaultColor, calculator_->prominent_color()); |
| 133 } |
| 134 |
| 135 TEST_F(WallPaperColorCalculatorTest, |
| 136 NoCrashWhenCalculatorDestroyedBeforeTaskProcessing) { |
| 137 EXPECT_TRUE(calculator_->StartCalculation()); |
| 138 calculator_.reset(); |
| 139 |
| 140 EXPECT_TRUE(task_runner_->HasPendingTask()); |
| 141 |
| 142 task_runner_->RunUntilIdle(); |
| 143 EXPECT_FALSE(observer_.WasNotified()); |
| 144 EXPECT_FALSE(task_runner_->HasPendingTask()); |
| 145 } |
| 146 |
| 147 } // namespace wallpaper |
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