@Test
public void testNoMatching() throws Exception {

  TaildirMatcher tm = new TaildirMatcher(
      "nomatch",
      tmpDir.getAbsolutePath() + File.separator + "abracadabra_nonexisting",
      isCachingNeeded);
  List<File> files = tm.getMatchingFiles();
  assertNotNull(msgNoMatch, files);
  assertTrue(msgNoMatch, files.isEmpty());
}