Add media router common classes and unittests.

chrome/browser/media/router/media_sink_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 "chrome/browser/media/router/media_sink.h"
+#include "testing/gmock/include/gmock/gmock.h"
+
+namespace media_router {
+
+class MediaSinkTest : public ::testing::Test {
+ protected:
+  MediaSinkTest() {}
+  ~MediaSinkTest() override {}
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(MediaSinkTest);
+};
+
+
+TEST_F(MediaSinkTest, HasRoute) {
+  MediaSink sink1("sinkId1", "Sink 1", "", MediaSink::Status::IDLE);
+  EXPECT_FALSE(sink1.HasRoute());
+
+  MediaSink sink2("sinkId2", "Sink 2", "routeId1", MediaSink::Status::ACTIVE);
+  EXPECT_TRUE(sink2.HasRoute());
+
+  MediaSink sink3("sinkId3", "Sink 3", "", MediaSink::Status::REQUEST_PENDING);
+  EXPECT_FALSE(sink3.HasRoute());
+}
+
+TEST_F(MediaSinkTest, Equals) {
+  MediaSink sink1("sinkId", "Sink", "routeId", MediaSink::Status::ACTIVE);
+
+  // Same as sink1.
+  MediaSink sink2("sinkId", "Sink", "routeId", MediaSink::Status::ACTIVE);
+  EXPECT_EQ(sink1, sink2);
+
+  // Route ID is different from sink1's.
+  MediaSink sink3("sinkId", "Sink", "otherRouteId", MediaSink::Status::ACTIVE);
+  EXPECT_NE(sink1, sink3);
+
+  // Route ID is different from sink1's.
+  MediaSink sink4("sinkId", "Sink", "", MediaSink::Status::IDLE);
+  EXPECT_NE(sink1, sink4);
+
+  // Sink ID is diffrent from sink1's.
+  MediaSink sink5("otherSinkId", "Sink", "routeId", MediaSink::Status::ACTIVE);
+  EXPECT_NE(sink1, sink5);
+
+  // Status is different from sink4's.
+  MediaSink sink6("sinkId", "Sink", "", MediaSink::Status::REQUEST_PENDING);
+  EXPECT_NE(sink6, sink4);
+}
+
+}  // namespace media_router