public void SanitizeHtml_ExistingUrl_DoesNotContainHtmlTags()
{
// Arrange
var htmlWeb = new HtmlWeb();
var document = htmlWeb.Load(@"https://en.wikipedia.org/wiki/Strategy_pattern");
// Act
var htmlSanitizer = new HtmlSanitizer();
var cleanText = htmlSanitizer.SanitizeHtmlDocument(document);
// Assert
cleanText.Should()
.NotContain(@"<img")
.And.NotContain(@"<div")
.And.NotContain(@"<!DOCTYPE html>")
.And.NotContain(@"document.documentElement.className");
}