public void ReturnSameInstanceWhenGetInstanceIsCalledMoreThanOnce()
{
North northFirst = North.GetInstance();
North northSecond = North.GetInstance();
Assert.NotNull(northFirst);
Assert.NotNull(northSecond);
Assert.Same(northFirst, northSecond);
}
public void ReturnEastWhenGetRightDirectionIsCalled()
{
North north = North.GetInstance();
var result = north.GetRightDirection();
Assert.NotNull(result);
Assert.IsType <East>(result);
}
public void ReturnPlusOneOnYAxisWhenGetMoveForwardCoordinatesIsCalled()
{
North north = North.GetInstance();
var result = north.GetMoveForwardCoordinates();
int expectedCoordX = 0;
int expectedCoordY = 1;
Assert.NotNull(result);
Assert.Equal(expectedCoordX, result.coordX);
Assert.Equal(expectedCoordY, result.coordY);
}