Add render-side manager for MediaSession

content/renderer/media/android/webmediasession_android_unittest.cc

+// Copyright 2013 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 "content/renderer/media/android/webmediasession_android.h"
+
+#include "base/memory/scoped_ptr.h"
+#include "content/renderer/media/android/renderer_media_session_manager.h"
+#include "testing/gmock/include/gmock/gmock.h"
+
+namespace content {
+
+class WebMediaSessionTest : public testing::Test {
+ public:
+  bool SessionManagerHasSession(RendererMediaSessionManager* session_manager,
+                                WebMediaSessionAndroid* session) {
+    for (auto& iter : session_manager->sessions_) {
+      if (iter.second == session)
+        return true;
+    }
+    return false;
+  }
+
+  bool IsSessionManagerEmpty(RendererMediaSessionManager* session_manager) {
+    return session_manager->sessions_.empty();
+  }
+};
+
+TEST_F(WebMediaSessionTest, TestRegistration) {
+  scoped_ptr<RendererMediaSessionManager> session_manager(
+      new RendererMediaSessionManager(nullptr));
+  EXPECT_TRUE(IsSessionManagerEmpty(session_manager.get()));
+  {
+    scoped_ptr<WebMediaSessionAndroid> session(
+        new WebMediaSessionAndroid(session_manager.get()));
+    EXPECT_TRUE(SessionManagerHasSession(session_manager.get(), session.get()));
+  }
+  EXPECT_TRUE(IsSessionManagerEmpty(session_manager.get()));
+}
+
+TEST_F(WebMediaSessionTest, TestMultipleRegistration) {
+  scoped_ptr<RendererMediaSessionManager> session_manager(
+      new RendererMediaSessionManager(nullptr));
+  EXPECT_TRUE(IsSessionManagerEmpty(session_manager.get()));
+
+  {
+    scoped_ptr<WebMediaSessionAndroid> session1(
+        new WebMediaSessionAndroid(session_manager.get()));
+    EXPECT_TRUE(
+        SessionManagerHasSession(session_manager.get(), session1.get()));
+
+    {
+      scoped_ptr<WebMediaSessionAndroid> session2(
+          new WebMediaSessionAndroid(session_manager.get()));
+      EXPECT_TRUE(
+          SessionManagerHasSession(session_manager.get(), session2.get()));
+    }
+
+    EXPECT_TRUE(
+        SessionManagerHasSession(session_manager.get(), session1.get()));
+  }
+
+  EXPECT_TRUE(IsSessionManagerEmpty(session_manager.get()));
+}
+
+TEST_F(WebMediaSessionTest, TestMultipleRegistrationOutOfOrder) {
+  scoped_ptr<RendererMediaSessionManager> session_manager(
+      new RendererMediaSessionManager(nullptr));
+  EXPECT_TRUE(IsSessionManagerEmpty(session_manager.get()));
+
+  WebMediaSessionAndroid* session1 =
+      new WebMediaSessionAndroid(session_manager.get());
+  EXPECT_TRUE(SessionManagerHasSession(session_manager.get(), session1));
+
+  WebMediaSessionAndroid* session2 =
+      new WebMediaSessionAndroid(session_manager.get());
+  EXPECT_TRUE(SessionManagerHasSession(session_manager.get(), session2));
+
+  delete session1;
+  EXPECT_TRUE(SessionManagerHasSession(session_manager.get(), session2));
+
+  delete session2;
+  EXPECT_TRUE(IsSessionManagerEmpty(session_manager.get()));
+}
+
+}  // namespace content