final String value = transformer.normalizeCanonicalUrl("not-a-url", "/page");
        assertNull(value);
    }

    @Test
    public void test_getURL_withMalformedBase() throws Exception {
        final FessXpathTransformer transformer = new FessXpathTransformer();
        try {
            transformer.getURL("not-a-url", "/page");
            fail();