Chromium plumbing for Screen Orientation API orientationchange events.

content/renderer/screen_orientation/screen_orientation_dispatcher_unittest.cc

+// 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 "screen_orientation_dispatcher.h"
+
+#include "base/logging.h"
+#include "base/memory/scoped_ptr.h"
+#include "content/common/screen_orientation_messages.h"
+#include "content/public/test/mock_render_thread.h"
+#include "content/public/test/test_utils.h"
+#include "testing/gtest/include/gtest/gtest.h"
+#include "third_party/WebKit/public/platform/WebScreenOrientationListener.h"
+
+namespace content {
+
+class MockScreenOrientationListener :
+    public blink::WebScreenOrientationListener {
+ public:
+  MockScreenOrientationListener();
+  virtual ~MockScreenOrientationListener() {}
+
+  virtual void didChangeScreenOrientation(blink::WebScreenOrientation) OVERRIDE;
+
+  bool did_change_screen_orientation() const {
+    return did_change_screen_orientation_;
+  }
+
+  blink::WebScreenOrientation screen_orientation() const {
+    return screen_orientation_;
+  }
+
+ private:
+  bool did_change_screen_orientation_;
+  blink::WebScreenOrientation screen_orientation_;
+
+  DISALLOW_COPY_AND_ASSIGN(MockScreenOrientationListener);
+};
+
+MockScreenOrientationListener::MockScreenOrientationListener()
+    : did_change_screen_orientation_(false),
+      screen_orientation_(blink::WebScreenOrientationPortraitPrimary) {
+}
+
+void MockScreenOrientationListener::didChangeScreenOrientation(
+    blink::WebScreenOrientation orientation) {
+  did_change_screen_orientation_ = true;
+  screen_orientation_ = orientation;
+}
+
+class ScreenOrientationDispatcherTest : public testing::Test {
+ protected:
+  virtual void SetUp() OVERRIDE {
+    render_thread_.reset(new MockRenderThread);
+    listener_.reset(new MockScreenOrientationListener);
+    dispatcher_.reset(new ScreenOrientationDispatcher(render_thread_.get()));
+    dispatcher_->setListener(listener_.get());
+  }
+
+  scoped_ptr<MockRenderThread> render_thread_;
+  scoped_ptr<MockScreenOrientationListener> listener_;
+  scoped_ptr<ScreenOrientationDispatcher> dispatcher_;
+};
+
+TEST_F(ScreenOrientationDispatcherTest, ListensToMessages) {
+  EXPECT_TRUE(render_thread_->observers().HasObserver(dispatcher_.get()));
+
+  render_thread_->OnControlMessageReceived(
+      ScreenOrientationMsg_OrientationChange(
+          blink::WebScreenOrientationPortraitPrimary));
+
+  EXPECT_TRUE(listener_->did_change_screen_orientation());
+}
+
+TEST_F(ScreenOrientationDispatcherTest, NullListener) {
+  dispatcher_->setListener(NULL);
+
+  render_thread_->OnControlMessageReceived(
+      ScreenOrientationMsg_OrientationChange(
+          blink::WebScreenOrientationPortraitPrimary));
+
+  EXPECT_FALSE(listener_->did_change_screen_orientation());
+}
+
+TEST_F(ScreenOrientationDispatcherTest, ValidValues) {
+  render_thread_->OnControlMessageReceived(
+      ScreenOrientationMsg_OrientationChange(
+          blink::WebScreenOrientationPortraitPrimary));
+  EXPECT_EQ(blink::WebScreenOrientationPortraitPrimary,
+               listener_->screen_orientation());
+
+  render_thread_->OnControlMessageReceived(
+      ScreenOrientationMsg_OrientationChange(
+          blink::WebScreenOrientationLandscapePrimary));
+  EXPECT_EQ(blink::WebScreenOrientationLandscapePrimary,
+               listener_->screen_orientation());
+
+  render_thread_->OnControlMessageReceived(
+      ScreenOrientationMsg_OrientationChange(
+          blink::WebScreenOrientationPortraitSecondary));
+  EXPECT_EQ(blink::WebScreenOrientationPortraitSecondary,
+               listener_->screen_orientation());
+
+  render_thread_->OnControlMessageReceived(
+      ScreenOrientationMsg_OrientationChange(
+          blink::WebScreenOrientationLandscapeSecondary));
+  EXPECT_EQ(blink::WebScreenOrientationLandscapeSecondary,
+               listener_->screen_orientation());
+}
+
+}  // namespace content