ozone/platform/wayland: Add some tests

ui/ozone/platform/wayland/wayland_surface_factory_unittest.cc

+// 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 "testing/gtest/include/gtest/gtest.h"
+#include "third_party/skia/include/core/SkSurface.h"
+#include "ui/ozone/platform/wayland/fake_server.h"
+#include "ui/ozone/platform/wayland/mock_platform_window_delegate.h"
+#include "ui/ozone/platform/wayland/wayland_display.h"
+#include "ui/ozone/platform/wayland/wayland_surface_factory.h"
+#include "ui/ozone/platform/wayland/wayland_window.h"
+#include "ui/ozone/public/surface_ozone_canvas.h"
+
+using ::testing::Expectation;
+using ::testing::Mock;
+using ::testing::SaveArg;
+using ::testing::_;
+
+namespace ui {
+
+class WaylandSurfaceFactoryTest : public testing::Test {
+ public:
+  WaylandSurfaceFactoryTest()
+      : surface_factory(&display),
+        window(&delegate, &display, gfx::Rect(0, 0, 80, 60)) {}
+
+  ~WaylandSurfaceFactoryTest() override {}
+
+  void SetUp() override {
+    ASSERT_TRUE(server.Start());
+    ASSERT_TRUE(display.Initialize());
+    ASSERT_TRUE(window.Initialize());
+    wl_display_roundtrip(display.display());
+
+    server.Pause();
+
+    surface = server.GetObject<wl::MockSurface>(window.GetWidget());
+    ASSERT_TRUE(surface);
+    initialized = true;
+  }
+
+  void TearDown() override {
+    server.Resume();
+    if (initialized)
+      wl_display_roundtrip(display.display());
+  }
+
+  void Sync() {
+    server.Resume();
+    wl_display_roundtrip(display.display());
+    server.Pause();
+  }
+
+ private:
+  wl::FakeServer server;
+  bool initialized = false;
+
+ protected:
+  WaylandDisplay display;
+  WaylandSurfaceFactory surface_factory;
+  MockPlatformWindowDelegate delegate;
+  WaylandWindow window;
+  wl::MockSurface* surface;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(WaylandSurfaceFactoryTest);
+};
+
+TEST_F(WaylandSurfaceFactoryTest, Canvas) {
+  auto canvas = surface_factory.CreateCanvasForWidget(window.GetWidget());
+  ASSERT_TRUE(canvas);
+
+  canvas->GetSurface();
+  canvas->PresentCanvas(gfx::Rect(5, 10, 20, 15));
+
+  Expectation damage = EXPECT_CALL(*surface, Damage(5, 10, 20, 15));
+  wl_resource* buffer_resource = nullptr;
+  Expectation attach = EXPECT_CALL(*surface, Attach(_, 0, 0))
+                           .WillOnce(SaveArg<0>(&buffer_resource));
+  EXPECT_CALL(*surface, Commit()).After(damage, attach);
+
+  Sync();
+
+  ASSERT_TRUE(buffer_resource);
+  wl_shm_buffer* buffer = wl_shm_buffer_get(buffer_resource);
+  ASSERT_TRUE(buffer);
+  EXPECT_EQ(wl_shm_buffer_get_width(buffer), 80);
+  EXPECT_EQ(wl_shm_buffer_get_height(buffer), 60);
+
+  // TODO(forney): We could check that the contents match something drawn to the
+  // SkSurface above.
+}
+
+TEST_F(WaylandSurfaceFactoryTest, CanvasResize) {
+  auto canvas = surface_factory.CreateCanvasForWidget(window.GetWidget());
+  ASSERT_TRUE(canvas);
+
+  canvas->GetSurface();
+  canvas->ResizeCanvas(gfx::Size(100, 50));
+  canvas->GetSurface();
+  canvas->PresentCanvas(gfx::Rect(0, 0, 100, 50));
+
+  Expectation damage = EXPECT_CALL(*surface, Damage(0, 0, 100, 50));
+  wl_resource* buffer_resource = nullptr;
+  Expectation attach = EXPECT_CALL(*surface, Attach(_, 0, 0))
+                           .WillOnce(SaveArg<0>(&buffer_resource));
+  EXPECT_CALL(*surface, Commit()).After(damage, attach);
+
+  Sync();
+
+  ASSERT_TRUE(buffer_resource);
+  wl_shm_buffer* buffer = wl_shm_buffer_get(buffer_resource);
+  ASSERT_TRUE(buffer);
+  EXPECT_EQ(wl_shm_buffer_get_width(buffer), 100);
+  EXPECT_EQ(wl_shm_buffer_get_height(buffer), 50);
+}
+
+}  // namespace ui