sm = models.next();
assertTrue(sm instanceof SimilarityScoreModel);
assertTrue(sm instanceof PairwiseScoreModelI);
assertFalse(sm instanceof DistanceScoreModel);
assertEquals(sm.getName(), "PAM250");
sm = models.next();
assertTrue(sm instanceof SimilarityScoreModel);
assertTrue(sm instanceof PairwiseScoreModelI);
assertFalse(sm instanceof DistanceScoreModel);
assertEquals(sm.getName(), "PAM250");