def test_kldiv(self):
p = np.array([[0.1, 0.4, 0.3, 0.9]])
q1 = np.array([[0.1, 0.2, 0.2, 0.5]])
q2 = np.array([[0.1, 0.4, 0.3, 0.8]])
self.assertTrue(TopicModel.kldiv(p, p) == 0)
d1 = TopicModel.kldiv(p, q1)
self.assertGreater(d1, 0)
d2 = TopicModel.kldiv(p, q2)
self.assertGreater(d1, d2)
