public async void GetFiles_WithCurrentDirectory_MustReturnSpectedChildren()
        {
            var service = new LocalDriveService();

            var currentDirectory = Helpers.FileSystem.CurrentDirectory;
            var expectedValue    = Directory
                                   .EnumerateFiles(currentDirectory, "*.*", SearchOption.TopDirectoryOnly)
                                   .Where(file => !string.IsNullOrEmpty(file))
                                   .Where(file => File.Exists(file))
                                   .OrderBy(file => file)
                                   .Select(file => new FileInfo(file))
                                   .Where(fileInfo => fileInfo != null)
                                   .Select(fileInfo => new FileVM
            {
                ID              = fileInfo.FullName,
                Name            = fileInfo.Name,
                CreatedDateTime = fileInfo.CreationTime,
                SizeInBytes     = fileInfo.Length,
                Path            = fileInfo.DirectoryName,
                ParentID        = fileInfo.DirectoryName
            })
                                   .ToArray();
            var directoryVM = new DirectoryVM {
                ID = currentDirectory
            };
            var value = await service.GetFiles(directoryVM);

            Assert.NotNull(value);
            Assert.NotEmpty(value);
            Assert.Equal(
                expectedValue.Where(x => x.Name.EndsWith("dll")).Select(x => x.ID).ToArray(),
                value.Where(x => x.Name.EndsWith("dll")).Select(x => x.ID).ToArray());
        }
        public async void GetFiles_WithNullParameter_MustReturnNull()
        {
            var service = new LocalDriveService();

            DirectoryVM directoryVM = null;
            var         value       = await service.GetFiles(directoryVM);

            Assert.Null(value);
        }
        public async void GetFiles_WithoutConnection_MustReturnNull()
        {
            var connection = ConnectionBuilder.Create().WithCheckConnectionValue(false).Build();
            var service    = new LocalDriveService(connection);

            DirectoryVM directoryVM = null;
            var         value       = await service.GetFiles(directoryVM);

            Assert.Null(value);
        }
        public async void GetFiles_WithInvalidParameter_MustReturnNull(string directoryID)
        {
            var service = new LocalDriveService();

            var directoryVM = new DirectoryVM {
                ID = directoryID
            };
            var value = await service.GetFiles(directoryVM);

            Assert.Null(value);
        }