public void JoinSessionShouldThrowInvalidOperationException()
{
// Arrange
IMultiplayerSessionConnectionContext connectionContext = Substitute.For <IMultiplayerSessionConnectionContext>();
Disconnected connectionState = new Disconnected();
// Act
Action action = () => connectionState.JoinSession(connectionContext);
// Assert
action.ShouldThrow <InvalidOperationException>();
}
