public void NavbarWithButton() { var output = new StringBuilder(); var writer = new StringBuilderWriter(output); using (var navbar = new Navbar(writer)) { writer.Write(navbar.Button("Sign In")); } Assert.AreEqual("<nav class=\"navbar navbar-default\" role=\"navigation\"><div class=\"container\">" + "<button class=\"btn btn-default navbar-btn\">Sign In</button>" + "</div></nav>", output.ToString()); }