Assert.assertNotNull(artistInfo);
Assert.assertNotNull(artistTopTracks);
Assert.assertTrue(artistInfo.contains(MADONNA));
Assert.assertTrue(artistTopTracks.contains(MADONNA));
dao.logWebserviceInvocation(new WebserviceInvocation(INFO, new Artist(MADONNA)));
artistInfo = dao.getArtistNamesWithNoInvocations(INFO);
artistTopTracks = dao.getArtistNamesWithNoInvocations(TOP_TRACKS);
Assert.assertFalse(artistInfo.contains(MADONNA));
Assert.assertTrue(artistTopTracks.contains(MADONNA));
dao.logWebserviceInvocation(new WebserviceInvocation(TOP_TRACKS, new Artist(MADONNA)));
artistInfo = dao.getArtistNamesWithNoInvocations(INFO);
artistTopTracks = dao.getArtistNamesWithNoInvocations(TOP_TRACKS);
Assert.assertFalse(artistInfo.contains(MADONNA));
Assert.assertFalse(artistTopTracks.contains(MADONNA));