    @Test public void addForm() throws Exception {

        Document expected = getXmlResource(getClass(), "expected-instance-add.xml");
        Document doc = getXmlResource(getClass(), "original-instance-add.xml");
        XformInstanceResource.adjustXformDocument(doc, 8, 1, Utils.parse8601("2014-11-15T12:34:56.789Z"));
        assertXmlEqual(expected, doc);
    }