public void ShouldReturnClosedDoorOnStateChange()
{
//assign
IDoor openDoor = new OpenDoor();
//act
IDoor closedDoor = openDoor.ChangeState();
//assert
closedDoor.IsOpen().Should().BeFalse();
}
public void ShouldShowDoorAs_Open()
{
//assign
IDoor door = new OpenDoor();
//act
bool isOpen = door.IsOpen();
//assert
isOpen.Should().BeTrue();
}