def test_jaccard_sim_4(self):
lset = {'hello', 'this'}
rset = {'hello'}
self.assertEqual(db._jaccard_sim(lset, rset), 0.5)
def test_jaccard_sim_2(self):
lset = {'hello'}
rset = set()
self.assertEqual(db._jaccard_sim(lset, rset), 0.0)
def test_jaccard_sim_3(self):
lset = set([])
rset = {'hello'}
self.assertEqual(db._jaccard_sim(lset, rset), 0.0)
def test_jaccard_sim_1(self):
lset = set()
rset = set()
self.assertEqual(db._jaccard_sim(lset, rset), 0.0)