public void AddAttribute()
{
var output = new TagHelperOutput("div", new TagHelperAttributeList(), (result, encoder) =>
{
var tagHelperContent = new DefaultTagHelperContent();
tagHelperContent.SetHtmlContent(string.Empty);
return(Task.FromResult <TagHelperContent>(tagHelperContent));
});
output.Attributes.ContainsName("attr").ShouldBeFalse();
output.AddAttribute("", "");
output.Attributes.ContainsName("").ShouldBeFalse();
output.AddAttribute("attr", "test");
output.Attributes["attr"].Value.ShouldBe("test");
}
