mono/mcs/class/System.Web/Test/jsunit-tests/form-errors/linkbutton-script.html

<script Language="JavaScript">
    var TestFixture = {
        FormError: function () {
	    Assert.Contains ("must be placed inside a form tag with runat=server", "top.test_run.document.body.innerHTML", "button outside <form>");
	}
    };

</script>