@Test
    public void testMasterFooter() throws Exception {

        assertContains("Master footer is here",
                getXML("testPPT_masterFooter.pptx", parseContext).xml);
    }
For the PowerPoint formats we don't currently support, ensure that
we don't break either
tika-parsers/tika-parsers-standard/tika-parsers-standard-modules/tika-parser-microsoft-module/src/test/java/org/apache/tika/parser/microsoft/ooxml/SXSLFExtractorTest.java