| 102 | |
| 103 | class TestPatterns(unittest.TestCase): |
| 104 | def test_basics(self): |
| 105 | g = hl.Graph() |
| 106 | a = hl.Node(uid="a", name="a", op="a") |
| 107 | b = hl.Node(uid="b", name="b", op="b") |
| 108 | c = hl.Node(uid="c", name="c", op="c") |
| 109 | d = hl.Node(uid="d", name="d", op="d") |
| 110 | e = hl.Node(uid="e", name="e", op="e") |
| 111 | g.add_node(a) |
| 112 | g.add_node(b) |
| 113 | g.add_node(c) |
| 114 | g.add_node(d) |
| 115 | g.add_node(e) |
| 116 | g.add_edge(a, b) |
| 117 | g.add_edge(b, c) |
| 118 | g.add_edge(b, d) |
| 119 | g.add_edge(c, e) |
| 120 | g.add_edge(d, e) |
| 121 | |
| 122 | rule = ge.GEParser("a > b").parse() |
| 123 | self.assertIsInstance(rule, ge.SerialPattern) |
| 124 | match, following = rule.match(g, a) |
| 125 | self.assertTrue(match) |
| 126 | self.assertCountEqual(following, [c, d]) |
| 127 | match, following = rule.match(g, b) |
| 128 | self.assertFalse(match) |
| 129 | |
| 130 | rule = ge.GEParser("b > c").parse() |
| 131 | self.assertIsInstance(rule, ge.SerialPattern) |
| 132 | match, following = rule.match(g, b) |
| 133 | self.assertFalse(match) |
| 134 | |
| 135 | rule = ge.GEParser("c | d").parse() |
| 136 | self.assertIsInstance(rule, ge.ParallelPattern) |
| 137 | match, following = rule.match(g, [c, d]) |
| 138 | self.assertTrue(match) |
| 139 | self.assertEqual(following, e) |
| 140 | match, following = rule.match(g, [c]) |
| 141 | self.assertTrue(match) |
| 142 | self.assertEqual(following, e) |
| 143 | match, following = rule.match(g, d) |
| 144 | self.assertTrue(match) |
| 145 | self.assertEqual(following, e) |
| 146 | match, following = rule.match(g, b) |
| 147 | self.assertFalse(match) |
| 148 | |
| 149 | rule = ge.GEParser("a > b > (c | d)").parse() |
| 150 | self.assertIsInstance(rule, ge.SerialPattern) |
| 151 | match, following = rule.match(g, a) |
| 152 | self.assertTrue(match, following) |
| 153 | |
| 154 | rule = ge.GEParser("(a > b) > (c | d)").parse() |
| 155 | self.assertIsInstance(rule, ge.SerialPattern) |
| 156 | match, following = rule.match(g, a) |
| 157 | self.assertTrue(match) |
| 158 | |
| 159 | rule = ge.GEParser("a > b > (c | d) > e").parse() |
| 160 | self.assertIsInstance(rule, ge.SerialPattern) |
| 161 | match, following = rule.match(g, a) |