public async Task Handle_EventBusThrowsException_ThrowException(
[Frozen] Mock <IBasketRepository> mockBasketRepository,
[Frozen] Mock <IEventBus> mockEventBus,
CheckoutCommandHandler sut,
CheckoutCommand command,
CustomerBasket basket
)
{
//Arrange
mockBasketRepository.Setup(_ => _.GetBasketAsync(
It.IsAny <string>()
))
.ReturnsAsync(basket);
mockEventBus.Setup(_ => _.Publish(It.IsAny <IntegrationEvent>()))
.Throws <Exception>();
//Act
Func <Task> func = async() => await sut.Handle(command, CancellationToken.None);
//Assert
await func.Should().ThrowAsync <Exception>();
mockBasketRepository.Verify(x => x.GetBasketAsync(
It.IsAny <string>()
));
}
public async Task Handle_BasketDoesNotExist_ReturnNull(
[Frozen] Mock <IBasketRepository> mockBasketRepository,
[Frozen] Mock <IEventBus> mockEventBus,
CheckoutCommandHandler sut,
CheckoutCommand command
)
{
//Arrange
//Act
var result = await sut.Handle(command, CancellationToken.None);
//Assert
result.Should().BeNull();
mockBasketRepository.Verify(x => x.GetBasketAsync(
It.IsAny <string>()
));
mockEventBus.Verify(_ => _.Publish(It.IsAny <IntegrationEvent>()), Times.Never);
}
public async Task Handle_BasketExists_ReturnBasket(
[Frozen] Mock <IBasketRepository> mockBasketRepository,
[Frozen] Mock <IEventBus> mockEventBus,
CheckoutCommandHandler sut,
CheckoutCommand command,
CustomerBasket basket
)
{
//Arrange
mockBasketRepository.Setup(_ => _.GetBasketAsync(
It.IsAny <string>()
))
.ReturnsAsync(basket);
//Act
var result = await sut.Handle(command, CancellationToken.None);
//Assert
result.Should().BeEquivalentTo(basket);
mockBasketRepository.Verify(_ => _.GetBasketAsync(
It.IsAny <string>()
));
mockEventBus.Verify(_ => _.Publish(It.IsAny <IntegrationEvent>()));
}