Blog.Logic.Core.Tests.MediaLogicTest.ShouldThrowExceptionWhenAddMediaByObjectFailsToCreateImageDirectory C# (CSharp) Method

        public void ShouldThrowExceptionWhenAddMediaByObjectFailsToCreateImageDirectory()
        {
            var guid = Guid.NewGuid().ToString();
            var album = _albums.Where(a => a.AlbumId == 1).ToList();
            var objParam = new Common.Contracts.Media
            {
                AlbumId = 1,
                MediaType = "image/jpg"
            };

            _mediaRepository = new Mock<IMediaRepository>();
            _configurationHelper = new Mock<IConfigurationHelper>();
            
            _albumRepository = new Mock<IAlbumRepository>();
            _albumRepository.Setup(a => a.Find(It.IsAny<Expression<Func<Album, bool>>>(), false))
                .Returns(album);

            _imageHelper = new Mock<IImageHelper>();
            _imageHelper.Setup(a => a.GenerateImagePath(It.IsAny<int>(), It.IsAny<string>(),
                It.IsAny<string>())).Returns(_rootPath + @"\AddedImages\1\" + guid);

            _fileHelper = new Mock<IFileHelper>();
            _fileHelper.Setup(a => a.CreateDirectory(It.IsAny<string>())).Returns(false);

            _mediaLogic = new MediaLogic(_mediaRepository.Object, _albumRepository.Object,
                _imageHelper.Object, _configurationHelper.Object, _fileHelper.Object);

            var ex = Assert.Throws<BlogException>(() => _mediaLogic.Add(objParam, 1));
            Assert.AreEqual("Error creating media directory", ex.Message);
        }