public async Task WhenSocketConnectionTerminates_PlayerShouldBeRemovedFromCollections()
{
collectionsMock.Setup(c => c.AddPlayer(It.IsAny <IPlayer>()));
collectionsMock.Setup(c => c.RemovePlayer(It.IsAny <IPlayer>()))
.Returns(() => Task.Delay(0));
var socketMock = new Mock <IWebSocket>(MockBehavior.Strict);
socketMock.SetupGet(s => s.State).Returns(WebSocketState.Open);
socketMock.Setup(s => s.ReceiveAsync(It.IsAny <ArraySegment <byte> >(),
It.IsAny <CancellationToken>()))
.Returns(() => throw new WebSocketException());
var controller = new SocketController(loggerMock.Object,
collectionsMock.Object, msgHandlerMock.Object);
await controller.ReceiveAsync(socketMock.Object);
collectionsMock.Verify(c => c.AddPlayer(It.IsAny <IPlayer>()));
collectionsMock.Verify(c => c.RemovePlayer(It.IsAny <IPlayer>()));
}