public void DontRemoveUsedRuleInResultWhenOnlyClass()
{
var service = new RequiredCssOnlyService();
var cssContent = "body {\r\nbackground-color: white; color: black;\r\n} .card { border:solid 1px green; }\r\n";
var htmlContent = @"<div class=""card""><h1>Card header</h1><p>this is a card</h1></div>";
var result = service.RemoveUnusedRules(cssContent, htmlContent);
Assert.IsTrue(result.Contains(".card{"));
}
public void NoCommentsResult()
{
var service = new RequiredCssOnlyService();
var cssContent = "/*\r\n * # TESTING MULTILINE COMMENT # \r\n */\r\nbody {\r\nbackground-color: white; color: black;\r\n} /* We don't know what this should illustrate */ .card + h1\r\n{ font-size: 20px }\r\n";
var htmlContent = "";
var result = service.RemoveUnusedRules(cssContent, htmlContent);
Assert.IsFalse(result.Contains("/*") && result.Contains("*/"));
}
public void NoNewLineResult()
{
var service = new RequiredCssOnlyService();
var cssContent = "body {\r\nbackground-color: white; color: black;\r\n} .card + h1\r\n{ font-size: 20px }\r\n";
var htmlContent = "";
var result = service.RemoveUnusedRules(cssContent, htmlContent);
Assert.IsFalse(result.Contains("\r") && result.Contains("\n"));
}
static void Main(string[] args)
{
const string folder = @"C:\code\RequiredCssOnlyApp\";
RequiredCssOnlyService service = new RequiredCssOnlyService();
var pageName = "page.html";
var html = System.IO.File.ReadAllText(folder + pageName, System.Text.Encoding.UTF8);
var linkMatches = Regex.Matches(html, "(?<link><link.*href=\"(?<url>[^\"]+)\"[^>]*>)");
foreach (Match linkMatch in linkMatches)
{
var linkGroup = linkMatch.Groups["link"];
if (!linkGroup.Success)
{
continue;
}
var urlGroup = linkMatch.Groups["url"];
if (!urlGroup.Success)
{
continue;
}
if (string.IsNullOrEmpty(urlGroup.Value) || !urlGroup.Value.EndsWith(".css"))
{
continue;
}
var fileName = urlGroup.Value;
var cssContent = System.IO.File.ReadAllText(folder + fileName, System.Text.Encoding.UTF8);
var resultingCss = service.RemoveUnusedRules(cssContent, html);
System.IO.File.WriteAllText(folder + fileName.Replace(".css", "-out.css"), resultingCss, System.Text.Encoding.UTF8);
if (!string.IsNullOrEmpty(resultingCss))
{
resultingCss = $"<style>{resultingCss}</style>";
}
html = html.Replace(linkGroup.Value, resultingCss);
}
System.IO.File.WriteAllText(folder + pageName.Replace(".html", "-out.html"), html, System.Text.Encoding.UTF8);
}