public void RemoveNullBuildingTest()
{
// given: SmallBuildingSlot
SmallBuildingSlot slot = new SmallBuildingSlot();
// when: removing the Building
// then: InvalidOperationException
Assert.That(() => slot.RemoveBuilding(), Throws.InvalidOperationException);
}
public void RemoveBuildingTest()
{
// given: SmallBuildingSlot with a Building
Mock <IBuilding> buildingMock = new Mock <IBuilding>(MockBehavior.Strict);
SmallBuildingSlot slot = new SmallBuildingSlot();
slot.PlaceBuilding(buildingMock.Object);
// when: removing the Building
var removedBuilding = slot.RemoveBuilding();
// then: slot Building is null and correct Building was returned
Assert.That(slot.Building, Is.Null);
Assert.That(removedBuilding, Is.SameAs(buildingMock.Object));
}