[Blink, RemotePlayback]Split onstatechange to separate events

third_party/WebKit/Source/modules/remoteplayback/RemotePlaybackTest.cpp

Index: third_party/WebKit/Source/modules/remoteplayback/RemotePlaybackTest.cpp
diff --git a/third_party/WebKit/Source/modules/remoteplayback/RemotePlaybackTest.cpp b/third_party/WebKit/Source/modules/remoteplayback/RemotePlaybackTest.cpp
index 87bfdf0012bc2ccf42e4b311fe4e272f5ee87286..9f83a7e288d5a716902d9ce1426f4b8f8821e1d0 100644
--- a/third_party/WebKit/Source/modules/remoteplayback/RemotePlaybackTest.cpp
+++ b/third_party/WebKit/Source/modules/remoteplayback/RemotePlaybackTest.cpp
@@ -10,6 +10,7 @@
 #include "core/html/HTMLVideoElement.h"
 #include "core/testing/DummyPageHolder.h"
 #include "platform/testing/UnitTestHelpers.h"
+#include "public/platform/modules/remoteplayback/WebRemotePlaybackState.h"
 #include "testing/gmock/include/gmock/gmock.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
@@ -30,11 +31,26 @@ class MockFunction : public ScriptFunction {
       : ScriptFunction(scriptState) {}
 };
 
+class MockEventListener : public EventListener {
+ public:
+  MockEventListener() : EventListener(CPPEventListenerType) {}
+
+  bool operator==(const EventListener& other) const final {
+    return this == &other;
+  }
+
+  MOCK_METHOD2(handleEvent, void(ExecutionContext* executionContext, Event*));
+};
+
 class RemotePlaybackTest : public ::testing::Test {
  protected:
   void cancelPrompt(RemotePlayback* remotePlayback) {
     remotePlayback->promptCancelled();
   }
+
+  void setState(RemotePlayback* remotePlayback, WebRemotePlaybackState state) {
+    remotePlayback->stateChanged(state);
+  }
 };
 
 TEST_F(RemotePlaybackTest, PromptCancelledRejectsWithNotAllowedError) {
@@ -56,4 +72,37 @@ TEST_F(RemotePlaybackTest, PromptCancelledRejectsWithNotAllowedError) {
   cancelPrompt(remotePlayback);
 }
 
+TEST_F(RemotePlaybackTest, StateChangeEvents) {
+  V8TestingScope scope;
+
+  auto pageHolder = DummyPageHolder::create();
+
+  HTMLMediaElement* element = HTMLVideoElement::create(pageHolder->document());
+  RemotePlayback* remotePlayback = RemotePlayback::create(*element);
+
+  auto connectingHandler = new ::testing::StrictMock<MockEventListener>();
+  auto connectHandler = new ::testing::StrictMock<MockEventListener>();
+  auto disconnectHandler = new ::testing::StrictMock<MockEventListener>();
+
+  remotePlayback->addEventListener(EventTypeNames::connecting,
+                                   connectingHandler);
+  remotePlayback->addEventListener(EventTypeNames::connect, connectHandler);
+  remotePlayback->addEventListener(EventTypeNames::disconnect,
+                                   disconnectHandler);
+
+  EXPECT_CALL(*connectingHandler, handleEvent(::testing::_, ::testing::_))
+      .Times(1);
+  EXPECT_CALL(*connectHandler, handleEvent(::testing::_, ::testing::_))
+      .Times(1);
+  EXPECT_CALL(*disconnectHandler, handleEvent(::testing::_, ::testing::_))
+      .Times(1);
+
+  setState(remotePlayback, WebRemotePlaybackState::Connecting);
+  setState(remotePlayback, WebRemotePlaybackState::Connecting);
+  setState(remotePlayback, WebRemotePlaybackState::Connected);
+  setState(remotePlayback, WebRemotePlaybackState::Connected);
+  setState(remotePlayback, WebRemotePlaybackState::Disconnected);
+  setState(remotePlayback, WebRemotePlaybackState::Disconnected);
+}
+
 }  // namespace blink