@Test
    public void testAddingToMetadataBeforeWriting() throws Exception {
        String content = getXML("testMP3id3v1.mp3").xml;
        assertContains("<meta name=\"xmpDM:audioSampleRate\" content=\"44100\"", content);
        assertContains("<meta name=\"xmpDM:duration\" content=\"2.455", content);
        assertContains("meta name=\"xmpDM:audioChannelType\" content=\"Mono\"", content);
    }
Test that metadata is added before xhtml content
is written...so that more metadata shows up in the xhtml
tika-parsers/tika-parsers-standard/tika-parsers-standard-modules/tika-parser-audiovideo-module/src/test/java/org/apache/tika/parser/mp3/Mp3ParserTest.java