public async Task Handle_FilesExist_WriteNoFiles(
[Frozen] Mock <IMediator> mediatorMock,
[Frozen] Mock <IFileWriter> fileWriterMock,
StoreProductPhotosCommandHandler sut,
StoreProductPhotosCommand command,
List <ProductWithPhotoDto> products
)
{
// Arrange
mediatorMock.Setup(_ => _.Send(
It.IsAny <GetAllProductsWithPhotosQuery>(),
It.IsAny <CancellationToken>()
)
)
.ReturnsAsync(products);
fileWriterMock.Setup(_ => _.FileExists(It.IsAny <string>()))
.Returns(true);
//Act
var result = await sut.Handle(command, CancellationToken.None);
//Assert
fileWriterMock.Verify(_ => _.WriteFile(
It.IsAny <string>(),
It.IsAny <byte[]>()
),
Times.Never
);
}
public async Task Handle_WriteFilesFails_NoFilesWritten(
[Frozen] Mock <IMediator> mediatorMock,
[Frozen] Mock <IFileWriter> fileWriterMock,
StoreProductPhotosCommandHandler sut,
StoreProductPhotosCommand command,
List <ProductWithPhotoDto> products
)
{
// Arrange
mediatorMock.Setup(_ => _.Send(
It.IsAny <GetAllProductsWithPhotosQuery>(),
It.IsAny <CancellationToken>()
)
)
.ReturnsAsync(products);
fileWriterMock.Setup(_ => _.WriteFile(
It.IsAny <string>(),
It.IsAny <byte[]>()
)
)
.Throws <IOException>();
//Act
var result = await sut.Handle(command, CancellationToken.None);
//Assert
fileWriterMock.Verify(_ => _.WriteFile(
It.IsAny <string>(),
It.IsAny <byte[]>()
),
Times.Exactly(products.Count * 3 * 2)
// 3 products * 3 photos * 2 (thumbnail + large photo)
);
}
