@Test
    public void testUnsupportedPowerPoint() throws Exception {
        String[] extensions = new String[]{"xps", "thmx"};
        String[] mimeTypes = new String[]{"application/vnd.ms-xpsdocument",
                "application/vnd.openxmlformats-officedocument" // Is this right?
        };

        for (int i = 0; i < extensions.length; i++) {
            String extension = extensions[i];
            String filename = "testPPT." + extension;

            Metadata metadata = new Metadata();
            metadata.set(TikaCoreProperties.RESOURCE_NAME_KEY, filename);
            ContentHandler handler = new BodyContentHandler();

            try (InputStream input = getResourceAsStream("/test-documents/" + filename)) {
                AUTO_DETECT_PARSER.parse(input, handler, metadata, parseContext);

                // Should get the metadata
                assertEquals(mimeTypes[i], metadata.get(Metadata.CONTENT_TYPE),
                        "Mime-type checking for " + filename);

                // But that's about it
            }
        }
    }
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