mash: Add touch-hud app.

ash/mus/root_window_controller_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 "ash/mus/bridge/wm_window_mus.h"
+#include "ash/mus/test/wm_test_base.h"
+
+namespace ash {
+
+class RootWindowControllerTest : public mus::WmTestBase {
+ public:
+  RootWindowControllerTest() {}
+  ~RootWindowControllerTest() override {}
+
+  WmWindow* CreateFullscreenTestWindow() {
+    return mus::WmWindowMus::Get(mus::WmTestBase::CreateFullscreenTestWindow());
+  }
+
+  WmWindow* GetPrimaryRootWindow() {
+    return mus::WmWindowMus::Get(mus::WmTestBase::GetPrimaryRootWindow());
+  }
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(RootWindowControllerTest);
+};
+
+TEST_F(RootWindowControllerTest, CreateFullscreenWindow) {
+  WmWindow* window = CreateFullscreenTestWindow();
+  WmWindow* root_window = GetPrimaryRootWindow();
+  EXPECT_EQ(root_window->GetBounds(), window->GetBounds());
+}
+
+}  // namespace ash