public void Should_prepend_class_to_existing_one()
{
attributes["class"] = "foo";
HtmlAttributesContainerExtensions.PrependCssClass(container.Object, "bar");
Assert.Equal("bar foo", attributes["class"]);
}
public void Prepend_should_add_class_if_not_present()
{
HtmlAttributesContainerExtensions.PrependCssClass(container.Object, "foo");
Assert.Equal("foo", attributes["class"]);
}