public void StartNewGame_ValidGameSettings_GameCreated()
{
// arrange
StartGameCommand testStartCommand = new StartGameCommand(_gameCreatorMock.Object, _manipulatorMock.Object, _defaultSettings);
// act
testStartCommand.Execute();
// assert
_gameCreatorMock.Verify(c => c.CreateGame(_defaultSettings, _manipulatorMock.Object), Times.Once());
}