public void ParsesFromContent()
        {
            string[] urls = _ex.GetImagesURLs(_html);

            Assert.IsTrue(urls.Length > 5);
            CollectionAssert.Contains(urls, Url1);
            CollectionAssert.Contains(urls, Url2);
        }
        protected internal virtual IEnumerable <string> EnumerateFiles(EntryBase e)
        {
            if (e.Text == null)
            {
                yield break;
            }

            string[] urls;

            urls = _fileExtractor.GetImagesURLs(e.Text);
            foreach (string url in urls)
            {
                yield return(url);
            }
        }