assertEquals("3 docs should match " + q.toString(),
3, h.length());
assertEquals("wrong first", "d2", h.doc(0).get("id"));
float score0 = h.score(0);
float score1 = h.score(1);
float score2 = h.score(2);
assertTrue("d2 does not have better score then others: " +
score0 + " >? " + score1,
score0 > score1);
assertEquals("d4 and d1 don't have equal scores",
score1, score2, SCORE_COMP_THRESH);