public async Task ValidateAsync_WithTwoValidators_ShouldValidateEachProductTwice()
{
//arrange
var mockValidatorA = new Mock <IBasketValidator>();
mockValidatorA.Setup(m => m.ValidateAsync(It.IsAny <IEnumerable <string> >()))
.Returns(Task.FromResult <IEnumerable <ValidationError> >(new List <ValidationError>()));
var mockValidatorB = new Mock <IBasketValidator>();
mockValidatorB.Setup(m => m.ValidateAsync(It.IsAny <IEnumerable <string> >()))
.Returns(Task.FromResult <IEnumerable <ValidationError> >(new List <ValidationError>()));
var mockValidatorProvider = new Mock <IValidatorsProvider>();
mockValidatorProvider.Setup(m => m.Get())
.Returns(new List <IBasketValidator>
{
mockValidatorA.Object,
mockValidatorB.Object
});
var basketValidationService = new BasketValidationService(mockValidatorProvider.Object);
//act
await basketValidationService.ValidateAsync(new string[] {
"Milk", "Soup"
});
//assert
mockValidatorProvider.Verify(m => m.Get(), Times.Once);
mockValidatorA.Verify(m => m.ValidateAsync(It.IsAny <IEnumerable <string> >()), Times.Exactly(1));
mockValidatorB.Verify(m => m.ValidateAsync(It.IsAny <IEnumerable <string> >()), Times.Exactly(1));
}
public async Task ValidateAsync_WithNullProducts_ShouldThrowException()
{
//arrange
var basketValidationService = new BasketValidationService(null);
//act
await basketValidationService.ValidateAsync(null);
//assert
}