@Test
    public void testWEBPDetection() throws Exception {
        assertType("image/webp", "testWEBP.webp");
        assertTypeByData("image/webp", "testWEBP.webp");
        assertTypeByName("image/webp", "x.webp");
        assertTypeByName("image/webp", "x.WEBP");
    }
Note - detecting container formats by mime magic is very very
iffy, as we can't be sure where things will end up.
People really ought to use the container aware detection...
tika-parsers/tika-parsers-standard/tika-parsers-standard-package/src/test/java/org/apache/tika/mime/TestMimeTypes.java