ozone/platform/wayland: Add WaylandTest base class to eliminate redundancy

ui/ozone/platform/wayland/wayland_window_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 <wayland-server-core.h>
 #include <xdg-shell-unstable-v5-server-protocol.h>
 
 #include "base/strings/utf_string_conversions.h"
 #include "testing/gmock/include/gmock/gmock.h"
 #include "testing/gtest/include/gtest/gtest.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_test.h"
 #include "ui/ozone/platform/wayland/wayland_window.h"
 
 using ::testing::Eq;
 using ::testing::Mock;
 using ::testing::SaveArg;
 using ::testing::StrEq;
 using ::testing::_;
 
 namespace ui {
 
-TEST(WaylandWindowInitializeTest, Initialize) {
-  wl::FakeServer server;
-  ASSERT_TRUE(server.Start());
-  WaylandDisplay display;
-  ASSERT_TRUE(display.Initialize());
-  MockPlatformWindowDelegate delegate;
-  gfx::AcceleratedWidget widget = gfx::kNullAcceleratedWidget;
-  EXPECT_CALL(delegate, OnAcceleratedWidgetAvailable(_, _))
-      .WillOnce(SaveArg<0>(&widget));
-  WaylandWindow window(&delegate, &display, gfx::Rect(0, 0, 800, 600));
-  ASSERT_TRUE(window.Initialize());
-  EXPECT_EQ(widget, window.GetWidget());
-  wl_display_roundtrip(display.display());
-
-  server.Pause();
-
-  EXPECT_TRUE(server.GetObject<wl::MockSurface>(window.GetWidget()));
-  server.Resume();
-}
-
-class WaylandWindowTest : public testing::Test {
+class WaylandWindowTest : public WaylandTest {
  public:
-  WaylandWindowTest()
-      : window(&delegate, &display, gfx::Rect(0, 0, 800, 600)) {}
+  WaylandWindowTest() {}
 
   void SetUp() override {
-    ASSERT_TRUE(server.Start());
-    ASSERT_TRUE(display.Initialize());
-    ASSERT_TRUE(window.Initialize());
-    wl_display_roundtrip(display.display());
+    WaylandTest::SetUp();
 
-    server.Pause();
-
-    auto surface = server.GetObject<wl::MockSurface>(window.GetWidget());
-    ASSERT_TRUE(surface);
     xdg_surface = surface->xdg_surface.get();
     ASSERT_TRUE(xdg_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;
-
-  MockPlatformWindowDelegate delegate;
-  WaylandWindow window;
-
   wl::MockXdgSurface* xdg_surface;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(WaylandWindowTest);
 };
 
 TEST_F(WaylandWindowTest, SetTitle) {
   EXPECT_CALL(*xdg_surface, SetTitle(StrEq("hello")));
   window.SetTitle(base::ASCIIToUTF16("hello"));
 }
@@ skipping 24 matching lines @@
   EXPECT_CALL(delegate, OnBoundsChanged(_)).Times(0);
   Sync();
   Mock::VerifyAndClearExpectations(&delegate);
 
   EXPECT_CALL(delegate, OnBoundsChanged(Eq(gfx::Rect(0, 0, 1500, 1000))));
   EXPECT_CALL(*xdg_surface, AckConfigure(13));
   window.ApplyPendingBounds();
 }
 
 }  // namespace ui