public void ScoreSheet_FullHouseUnset_RecordFullHouseWithValidSetAsTwentyFive() { // Arrange _fullHouseValidator.Setup(x => x.IsValid(It.IsAny <IEnumerable <IDie> >())).Returns(true); // Act int?fullHouseScore = _scoreSheet.RecordFullHouse(_diceCup.Object); //Assert _scoreSheet.FullHouse.Should().Be(25); }