class JaccardTestCase(unittest.TestCase): def setUp(self): self.threshold = 0.3 self.matches_using_cart_prod = sim_match( table_A, table_B, tokenized_table_A, tokenized_table_B, l_attr, r_attr, get_jaccard_fn(), self.threshold, ['id'], ['id']) self.size_filter = SizeFilter(table_A, tokenized_table_A, l_attr, tok) self.size_filter.build_index() self.prefix_filter = PrefixFilter(table_A, tokenized_table_A, l_attr, tok, self.threshold, token_ordering) self.prefix_filter.build_index() self.position_filter = PositionFilter(table_A, tokenized_table_A, l_attr, tok, self.threshold, token_ordering) self.position_filter.build_index() self.suffix_filter = SuffixFilter(table_A, tokenized_table_A, l_attr, tok, self.threshold, token_ordering) def test_jaccard_match(self): # test jaccard with position filter, size filter, suffix filter matches = jaccard_match( table_A, table_B, tokenized_table_A, tokenized_table_B, l_attr, r_attr, self.threshold, [self.position_filter, self.size_filter, self.suffix_filter], ['id'], ['id']) self.assertTrue(compare_matches(self.matches_using_cart_prod, matches)) # test jaccard with prefix filter, size filter, suffix filter matches = jaccard_match( table_A, table_B, tokenized_table_A, tokenized_table_B, l_attr, r_attr, self.threshold, [self.prefix_filter, self.size_filter, self.suffix_filter], ['id'], ['id']) self.assertTrue(compare_matches(self.matches_using_cart_prod, matches))
class PrefixFilterTestCase(unittest.TestCase): def setUp(self): self.prefix_filter = PrefixFilter(A, A_tokenized, 'str', tok, 0.8, token_ordering) self.prefix_filter.build_index() def test_apply_filter(self): # prefix filter satisfies l_tokens = order_using_token_ordering(['aa', 'bb', 'cd', 'ef', 'fg'], token_ordering) r_tokens = order_using_token_ordering(['fg', 'cd', 'aa'], token_ordering) self.assertTrue( self.prefix_filter.apply_filter(l_tokens, r_tokens, len(l_tokens), len(r_tokens), 0.8)) l_tokens = order_using_token_ordering(['aa', 'bb', 'cd', 'ef', 'fg'], token_ordering) r_tokens = order_using_token_ordering(['aa'], token_ordering) self.assertTrue( self.prefix_filter.apply_filter(l_tokens, r_tokens, len(l_tokens), len(r_tokens), 0.8)) # prefix filter doesn't satisfy l_tokens = order_using_token_ordering(['aa', 'bb', 'cd', 'ef', 'fg'], token_ordering) r_tokens = order_using_token_ordering(['fg'], token_ordering) self.assertFalse( self.prefix_filter.apply_filter(l_tokens, r_tokens, len(l_tokens), len(r_tokens), 0.8)) # test empty list of tokens l_tokens = order_using_token_ordering(['aa', 'bb', 'cd', 'ef', 'fg'], token_ordering) r_tokens = order_using_token_ordering([], token_ordering) self.assertFalse( self.prefix_filter.apply_filter(l_tokens, r_tokens, len(l_tokens), len(r_tokens), 0.8)) self.assertFalse( self.prefix_filter.apply_filter(r_tokens, l_tokens, len(r_tokens), len(l_tokens), 0.8)) def test_find_candidates(self): # test default case (presence of candidates) tokens = order_using_token_ordering(['aa', 'ef', 'lp'], token_ordering) self.assertSetEqual( self.prefix_filter.find_candidates(tokens, len(tokens), 0.8), set([0, 3])) # test empty set of candidates tokens = order_using_token_ordering(['op', 'lp', 'mp'], token_ordering) self.assertSetEqual( self.prefix_filter.find_candidates(tokens, len(tokens), 0.8), set()) # test empty list of probe tokens tokens = order_using_token_ordering([], token_ordering) self.assertSetEqual( self.prefix_filter.find_candidates(tokens, len(tokens), 0.8), set())