public void CharacterizeRefactoredVersion( Product dummyProduct, Mock <IDiscountRepository> dummyRepository, Mock <IAuthorize> dummyAuthorizer) { dummyProduct.DiscountType = "percentage"; dummyRepository.Setup(x => x.GetDiscountForType( It.IsAny <string>(), It.IsAny <string>())).Returns(.5M); dummyAuthorizer.Setup(x => x.IsAuthorized()).Returns(true); // composition root var percentoff = new PercentageDiscountStrategy(); var moneyoff = new MoneyOffDiscountStrategy(); var unknown = new UnknownDiscountStrategy(); var runfirst = new RunFirstCompositeStrategy(new IDiscountStrategy[] { percentoff, moneyoff, unknown }); var discountCalculator = new RefactoredProductClass( dummyRepository.Object, runfirst); var authorizedSut = new AuthorizableDiscountCalculator( dummyAuthorizer.Object, discountCalculator); // end composition root var actual = authorizedSut.GetDiscountPrice(dummyProduct); Assert.Equal(dummyProduct.Price * .5M, actual); }
public void PercentageDiscountStrategyShouldRunIsCorrect( Product testProduct, PercentageDiscountStrategy sut) { testProduct.DiscountType = "percentage"; Assert.True(sut.ShouldRunFor(testProduct)); }
public void PercentageDiscountStrategyShouldNotRunIsCorrect( Product testProduct, string bogusdiscounttype, PercentageDiscountStrategy sut) { testProduct.DiscountType = bogusdiscounttype; Assert.False(sut.ShouldRunFor(testProduct)); }
public void PercentageDiscountStrategyThrowsOnLowDiscount( Product p, decimal discount, PercentageDiscountStrategy sut) { if (Math.Abs(discount) != 0) { discount = -Math.Abs(discount); } Assert.Throws <InvalidDiscountException>(() => sut.DiscountProduct(p, discount)); }
public void PercentageDiscountStrategyCalculationIsCorrect( Product p, PercentageDiscountStrategy sut) { var discount = (decimal) new Random().NextDouble(); Assert.True(discount > 0); var actual = sut.DiscountProduct(p, discount); Assert.Equal(p.Price * discount, actual); }