public async Task <string> Handle(GetResizedFileByIdQuery request, CancellationToken cancellationToken)
{
var criteria = new ImageResizeCriteria(request.ImageId, request.Query);
var criteriaValidator = new ImageResizeCriteriaValidator(_configuration);
Guard.AgainstInvalidArgumentWithMessage("Invalid criteria", criteriaValidator.ValidCriteria(criteria));
(int?width, int?height)widthHeightPair = criteriaValidator.GetCriteria(criteria);
var fileDtos = await _fileReadRepository.GetAllImageOfIdAsync(request.ImageId, widthHeightPair.width, widthHeightPair.height);
Guard.AgainstNullOrNotAny(Constants.File, fileDtos);
BaseFileDto fileFound;
fileFound = fileDtos.FirstOrDefault(file => (widthHeightPair.width == null || file.Width == widthHeightPair.width) &&
(widthHeightPair.height == null || file.Height == widthHeightPair.height) && !criteria.Empty);
if (fileFound != null)
{
return(fileFound.FilePath);
}
BaseFileDto originalFile = fileDtos.FirstOrDefault(file => file.Id == criteria.ImageId);
Guard.AgainstNull(Constants.OriginalFile, originalFile);
bool shoudResize = _imageService.ShouldResize(((int)originalFile.Width, (int)originalFile.Height), widthHeightPair);
if (criteria.Empty || !shoudResize)
{
fileFound = originalFile;
}
return(fileFound?.FilePath);
}
public async Task Handle_GetFileByIdQuerySuccessfully_WhenFileIdIsValid()
{
// Arrange
_fileReadRepositoryMock.Setup(f => f.QuerySingleOrDefaultAsync <BaseFileDto>(It.IsAny <string>(), It.IsAny <object>())).ReturnsAsync(new BaseFileDto()
{
Id = 1, FilePath = "file_path/file_name.jpg"
});
// Act
BaseFileDto baseFileDto = await _handler.Handle(new GetFileByIdQuery(1), CancellationToken.None);
// Assert
Assert.Equal(1, baseFileDto.Id);
Assert.Equal("file_path/file_name.jpg", baseFileDto.FilePath);
}
public async Task Api_ShouldGetFileByIdSuccessfullly()
{
// arrange
var file = new BaseFileDto()
{
Id = 1, FilePath = "file_path/file_name.jpg"
};
_mediator.Setup(f => f.Send(It.IsAny <GetFileByIdQuery>(), CancellationToken.None))
.ReturnsAsync(file);
// act
var controller = new FileController(_mediator.Object, _configuration.Object, _mimeTypeFactory.Object);
var result = await controller.GetFileById((int)file.Id);
// assert
_mediator.Verify(sender => sender.Send(It.IsAny <GetFileByIdQuery>(), CancellationToken.None), Times.Once);
Assert.Equal(result.FilePath, file.FilePath);
}
