(reland) Add tests for PaintPropertyTreePrinter, remove path printers

third_party/WebKit/Source/core/paint/PaintPropertyTreePrinterTest.cpp

+// Copyright 2016 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 "core/paint/PaintPropertyTreePrinter.h"
+
+#include "core/layout/LayoutTestHelper.h"
+#include "platform/testing/RuntimeEnabledFeaturesTestHelpers.h"
+#include "testing/gmock/include/gmock/gmock-matchers.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+#ifndef NDEBUG
+
+namespace blink {
+
+typedef bool TestParamRootLayerScrolling;
+class PaintPropertyTreePrinterTest
+    : public ::testing::WithParamInterface<TestParamRootLayerScrolling>
+    , private ScopedSlimmingPaintV2ForTest
+    , private ScopedRootLayerScrollingForTest
+    , public RenderingTest {
+public:
+    PaintPropertyTreePrinterTest()
+        : ScopedSlimmingPaintV2ForTest(true)
+        , ScopedRootLayerScrollingForTest(GetParam())
+        , RenderingTest(SingleChildFrameLoaderClient::create()) { }
+
+private:
+    void SetUp() override
+    {
+        Settings::setMockScrollbarsEnabled(true);
+
+        RenderingTest::SetUp();
+        enableCompositing();
+    }
+
+    void TearDown() override
+    {
+        RenderingTest::TearDown();
+
+        Settings::setMockScrollbarsEnabled(false);
+    }
+};
+
+INSTANTIATE_TEST_CASE_P(All, PaintPropertyTreePrinterTest, ::testing::Bool());
+
+TEST_P(PaintPropertyTreePrinterTest, SimpleTransformTree)
+{
+    setBodyInnerHTML("hello world");
+    String transformTreeAsString = transformPropertyTreeAsString(*document().view());
+    EXPECT_THAT(transformTreeAsString.ascii().data(),
+        testing::MatchesRegex("root .*"
+            "  .*Translation \\(.*\\) .*"));
+}
+
+TEST_P(PaintPropertyTreePrinterTest, SimpleClipTree)
+{
+    setBodyInnerHTML("hello world");
+    String clipTreeAsString = clipPropertyTreeAsString(*document().view());
+    EXPECT_THAT(clipTreeAsString.ascii().data(),
+        testing::MatchesRegex("root .*"
+            "  .*Clip \\(.*\\) .*"));
+}
+
+TEST_P(PaintPropertyTreePrinterTest, SimpleEffectTree)
+{
+    setBodyInnerHTML("<div style='opacity: 0.9;'>hello world</div>");
+    String effectTreeAsString = effectPropertyTreeAsString(*document().view());
+    EXPECT_THAT(effectTreeAsString.ascii().data(),
+        testing::MatchesRegex("root .*"
+            "  Effect \\(LayoutBlockFlow DIV\\) .*"));
+}
+
+TEST_P(PaintPropertyTreePrinterTest, SimpleScrollTree)
+{
+    setBodyInnerHTML("<div style='height: 4000px;'>hello world</div>");
+    String scrollTreeAsString = scrollPropertyTreeAsString(*document().view());
+    EXPECT_THAT(scrollTreeAsString.ascii().data(),
+        testing::MatchesRegex("root .*"
+            "  Scroll \\(.*\\) .*"));
+}
+
+} // namespace blink
+
+#endif