1 files changed, 85 insertions, 0 deletions
diff --git a/chromium/third_party/blink/renderer/platform/graphics/paint/drawing_recorder_test.cc b/chromium/third_party/blink/renderer/platform/graphics/paint/drawing_recorder_test.cc
new file mode 100644
index 00000000000..4882dba1339
--- /dev/null
+++ b/chromium/third_party/blink/renderer/platform/graphics/paint/drawing_recorder_test.cc
@@ -0,0 +1,85 @@
+// 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/platform/graphics/paint/drawing_recorder.h"
+
+#include "testing/gtest/include/gtest/gtest.h"
+#include "third_party/blink/renderer/platform/graphics/graphics_context.h"
+#include "third_party/blink/renderer/platform/graphics/paint/paint_controller_test.h"
+#include "third_party/blink/renderer/platform/testing/fake_display_item_client.h"
+
+namespace blink {
+
+using DrawingRecorderTest = PaintControllerTestBase;
+
+namespace {
+
+const IntRect kBounds(1, 2, 3, 4);
+
+TEST_F(DrawingRecorderTest, Nothing) {
+  FakeDisplayItemClient client;
+  GraphicsContext context(GetPaintController());
+  InitRootChunk();
+  DrawNothing(context, client, kForegroundType);
+  GetPaintController().CommitNewDisplayItems();
+  EXPECT_DISPLAY_LIST(GetPaintController().GetDisplayItemList(), 1,
+                      TestDisplayItem(client, kForegroundType));
+  EXPECT_FALSE(static_cast<const DrawingDisplayItem&>(
+                   GetPaintController().GetDisplayItemList()[0])
+                   .GetPaintRecord());
+}
+
+TEST_F(DrawingRecorderTest, Rect) {
+  FakeDisplayItemClient client;
+  GraphicsContext context(GetPaintController());
+  InitRootChunk();
+  DrawRect(context, client, kForegroundType, kBounds);
+  GetPaintController().CommitNewDisplayItems();
+  EXPECT_DISPLAY_LIST(GetPaintController().GetDisplayItemList(), 1,
+                      TestDisplayItem(client, kForegroundType));
+}
+
+TEST_F(DrawingRecorderTest, Cached) {
+  FakeDisplayItemClient client;
+  GraphicsContext context(GetPaintController());
+  InitRootChunk();
+  DrawNothing(context, client, kBackgroundType);
+  DrawRect(context, client, kForegroundType, kBounds);
+  GetPaintController().CommitNewDisplayItems();
+
+  EXPECT_DISPLAY_LIST(GetPaintController().GetDisplayItemList(), 2,
+                      TestDisplayItem(client, kBackgroundType),
+                      TestDisplayItem(client, kForegroundType));
+
+  InitRootChunk();
+  DrawNothing(context, client, kBackgroundType);
+  DrawRect(context, client, kForegroundType, kBounds);
+
+  EXPECT_EQ(2, NumCachedNewItems());
+
+  GetPaintController().CommitNewDisplayItems();
+
+  EXPECT_DISPLAY_LIST(GetPaintController().GetDisplayItemList(), 2,
+                      TestDisplayItem(client, kBackgroundType),
+                      TestDisplayItem(client, kForegroundType));
+}
+
+template <typename T>
+FloatRect DrawAndGetCullRect(PaintController& controller,
+                             const DisplayItemClient& client,
+                             const T& bounds) {
+  {
+    // Draw some things which will produce a non-null picture.
+    GraphicsContext context(controller);
+    DrawingRecorder recorder(context, client, kBackgroundType, bounds);
+    context.DrawRect(EnclosedIntRect(FloatRect(bounds)));
+  }
+  controller.CommitNewDisplayItems();
+  const auto& drawing = static_cast<const DrawingDisplayItem&>(
+      controller.GetDisplayItemList()[0]);
+  return FloatRect(drawing.VisualRect());
+}
+
+}  // namespace
+}  // namespace blink