| // 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 "third_party/blink/renderer/core/html/canvas/canvas_font_cache.h" |
| |
| #include <memory> |
| #include "testing/gmock/include/gmock/gmock.h" |
| #include "testing/gtest/include/gtest/gtest.h" |
| #include "third_party/blink/renderer/core/dom/document.h" |
| #include "third_party/blink/renderer/core/frame/local_frame_view.h" |
| #include "third_party/blink/renderer/core/html/canvas/canvas_context_creation_attributes_core.h" |
| #include "third_party/blink/renderer/core/html/canvas/canvas_rendering_context.h" |
| #include "third_party/blink/renderer/core/testing/page_test_base.h" |
| |
| using testing::Mock; |
| |
| namespace blink { |
| |
| class CanvasFontCacheTest : public PageTestBase { |
| protected: |
| CanvasFontCacheTest(); |
| void SetUp() override; |
| |
| HTMLCanvasElement& CanvasElement() const { return *canvas_element_; } |
| CanvasRenderingContext* Context2D() const; |
| CanvasFontCache* Cache() { return GetDocument().GetCanvasFontCache(); } |
| |
| private: |
| Persistent<HTMLCanvasElement> canvas_element_; |
| }; |
| |
| CanvasFontCacheTest::CanvasFontCacheTest() = default; |
| |
| CanvasRenderingContext* CanvasFontCacheTest::Context2D() const { |
| // If the following check fails, perhaps you forgot to call createContext |
| // in your test? |
| EXPECT_NE(nullptr, CanvasElement().RenderingContext()); |
| EXPECT_TRUE(CanvasElement().RenderingContext()->IsRenderingContext2D()); |
| return CanvasElement().RenderingContext(); |
| } |
| |
| void CanvasFontCacheTest::SetUp() { |
| PageTestBase::SetUp(); |
| GetDocument().documentElement()->setInnerHTML( |
| "<body><canvas id='c'></canvas></body>"); |
| UpdateAllLifecyclePhasesForTest(); |
| canvas_element_ = To<HTMLCanvasElement>(GetDocument().getElementById("c")); |
| String canvas_type("2d"); |
| CanvasContextCreationAttributesCore attributes; |
| attributes.alpha = true; |
| canvas_element_->GetCanvasRenderingContext(canvas_type, attributes); |
| Context2D(); // Calling this for the checks |
| } |
| |
| TEST_F(CanvasFontCacheTest, CacheHardLimit) { |
| String font_string; |
| unsigned i; |
| for (i = 0; i < Cache()->HardMaxFonts() + 1; i++) { |
| font_string = String::Number(i + 1) + "px sans-serif"; |
| Context2D()->setFont(font_string); |
| if (i < Cache()->HardMaxFonts()) { |
| EXPECT_TRUE(Cache()->IsInCache("1px sans-serif")); |
| } else { |
| EXPECT_FALSE(Cache()->IsInCache("1px sans-serif")); |
| } |
| EXPECT_TRUE(Cache()->IsInCache(font_string)); |
| } |
| } |
| |
| TEST_F(CanvasFontCacheTest, PageVisibilityChange) { |
| Context2D()->setFont("10px sans-serif"); |
| EXPECT_TRUE(Cache()->IsInCache("10px sans-serif")); |
| GetPage().SetVisibilityState(mojom::blink::PageVisibilityState::kHidden, |
| /*initial_state=*/false); |
| EXPECT_FALSE(Cache()->IsInCache("10px sans-serif")); |
| |
| Context2D()->setFont("15px sans-serif"); |
| EXPECT_FALSE(Cache()->IsInCache("10px sans-serif")); |
| EXPECT_TRUE(Cache()->IsInCache("15px sans-serif")); |
| |
| Context2D()->setFont("10px sans-serif"); |
| EXPECT_TRUE(Cache()->IsInCache("10px sans-serif")); |
| EXPECT_FALSE(Cache()->IsInCache("15px sans-serif")); |
| |
| GetPage().SetVisibilityState(mojom::blink::PageVisibilityState::kVisible, |
| /*initial_state=*/false); |
| Context2D()->setFont("15px sans-serif"); |
| Context2D()->setFont("10px sans-serif"); |
| EXPECT_TRUE(Cache()->IsInCache("10px sans-serif")); |
| EXPECT_TRUE(Cache()->IsInCache("15px sans-serif")); |
| } |
| |
| } // namespace blink |
