public void FetchPreviewFromHtml_FailsOnInvalidData()
{
var urlPreview = new UrlPreview();
var result1 = urlPreview.FetchPreviewFromHtml(null as string);
Assert.Null(result1);
var result2 = urlPreview.FetchPreviewFromHtml(null as HtmlDocument);
Assert.Null(result2);
}
public void FetchPreviewFromHtml_SuccessOnMultipleFiles()
{
var urlPreview = new UrlPreview();
const string fileName1 = "./Resources/CNN - Tapping into craft beer's online potential.html";
using (var fileStream = new FileStream(fileName1, FileMode.Open))
{
using (var reader = new StreamReader(fileStream))
{
var result = urlPreview.FetchPreviewFromHtml(reader.ReadToEnd());
Assert.NotNull(result);
}
}
const string fileName2 = "Fox Business - Stocks jump on final trading day of 2Q.html";
const string fileName3 = "Twitter - A Microsoft Tweet.html";
const string fileName4 = "Wikipedia - Hayabusa2.html";
}