public MarkdownControllerTests()
        {
            _fixture = new Fixture();

            _textMiddlewareMock = Substitute.For <ITextMiddlewareBuilder>();
            _markdownController = new MarkdownController(_textMiddlewareMock);
        }
 public MarkdownController(ITextMiddlewareBuilder textMiddlewareBuilder)
 {
     _textMiddlewareBuilder = textMiddlewareBuilder;
 }