diff options
Diffstat (limited to 'tests/test_lineage.py')
| -rw-r--r-- | tests/test_lineage.py | 65 |
1 files changed, 43 insertions, 22 deletions
diff --git a/tests/test_lineage.py b/tests/test_lineage.py index 922edcb..ed1a448 100644 --- a/tests/test_lineage.py +++ b/tests/test_lineage.py @@ -25,21 +25,21 @@ class TestLineage(unittest.TestCase): node.source.sql(), "SELECT z.a AS a FROM (SELECT y.a AS a FROM (SELECT x.a AS a FROM x AS x) AS y /* source: y */) AS z /* source: z */", ) - self.assertEqual(node.alias, "") + self.assertEqual(node.source_name, "") downstream = node.downstream[0] self.assertEqual( downstream.source.sql(), "SELECT y.a AS a FROM (SELECT x.a AS a FROM x AS x) AS y /* source: y */", ) - self.assertEqual(downstream.alias, "z") + self.assertEqual(downstream.source_name, "z") downstream = downstream.downstream[0] self.assertEqual( downstream.source.sql(), "SELECT x.a AS a FROM x AS x", ) - self.assertEqual(downstream.alias, "y") + self.assertEqual(downstream.source_name, "y") self.assertGreater(len(node.to_html()._repr_html_()), 1000) def test_lineage_sql_with_cte(self) -> None: @@ -53,7 +53,8 @@ class TestLineage(unittest.TestCase): node.source.sql(), "WITH z AS (SELECT y.a AS a FROM (SELECT x.a AS a FROM x AS x) AS y /* source: y */) SELECT z.a AS a FROM z AS z", ) - self.assertEqual(node.alias, "") + self.assertEqual(node.source_name, "") + self.assertEqual(node.reference_node_name, "") # Node containing expanded CTE expression downstream = node.downstream[0] @@ -61,14 +62,16 @@ class TestLineage(unittest.TestCase): downstream.source.sql(), "SELECT y.a AS a FROM (SELECT x.a AS a FROM x AS x) AS y /* source: y */", ) - self.assertEqual(downstream.alias, "") + self.assertEqual(downstream.source_name, "") + self.assertEqual(downstream.reference_node_name, "z") downstream = downstream.downstream[0] self.assertEqual( downstream.source.sql(), "SELECT x.a AS a FROM x AS x", ) - self.assertEqual(downstream.alias, "y") + self.assertEqual(downstream.source_name, "y") + self.assertEqual(downstream.reference_node_name, "") def test_lineage_source_with_cte(self) -> None: node = lineage( @@ -81,21 +84,24 @@ class TestLineage(unittest.TestCase): node.source.sql(), "SELECT z.a AS a FROM (WITH y AS (SELECT x.a AS a FROM x AS x) SELECT y.a AS a FROM y AS y) AS z /* source: z */", ) - self.assertEqual(node.alias, "") + self.assertEqual(node.source_name, "") + self.assertEqual(node.reference_node_name, "") downstream = node.downstream[0] self.assertEqual( downstream.source.sql(), "WITH y AS (SELECT x.a AS a FROM x AS x) SELECT y.a AS a FROM y AS y", ) - self.assertEqual(downstream.alias, "z") + self.assertEqual(downstream.source_name, "z") + self.assertEqual(downstream.reference_node_name, "") downstream = downstream.downstream[0] self.assertEqual( downstream.source.sql(), "SELECT x.a AS a FROM x AS x", ) - self.assertEqual(downstream.alias, "z") + self.assertEqual(downstream.source_name, "z") + self.assertEqual(downstream.reference_node_name, "y") def test_lineage_source_with_star(self) -> None: node = lineage( @@ -106,14 +112,16 @@ class TestLineage(unittest.TestCase): node.source.sql(), "WITH y AS (SELECT * FROM x AS x) SELECT y.a AS a FROM y AS y", ) - self.assertEqual(node.alias, "") + self.assertEqual(node.source_name, "") + self.assertEqual(node.reference_node_name, "") downstream = node.downstream[0] self.assertEqual( downstream.source.sql(), "SELECT * FROM x AS x", ) - self.assertEqual(downstream.alias, "") + self.assertEqual(downstream.source_name, "") + self.assertEqual(downstream.reference_node_name, "y") def test_lineage_external_col(self) -> None: node = lineage( @@ -124,14 +132,16 @@ class TestLineage(unittest.TestCase): node.source.sql(), "WITH y AS (SELECT * FROM x AS x) SELECT a AS a FROM y AS y JOIN z AS z ON y.uid = z.uid", ) - self.assertEqual(node.alias, "") + self.assertEqual(node.source_name, "") + self.assertEqual(node.reference_node_name, "") downstream = node.downstream[0] self.assertEqual( downstream.source.sql(), "?", ) - self.assertEqual(downstream.alias, "") + self.assertEqual(downstream.source_name, "") + self.assertEqual(downstream.reference_node_name, "") def test_lineage_values(self) -> None: node = lineage( @@ -143,17 +153,17 @@ class TestLineage(unittest.TestCase): node.source.sql(), "SELECT y.a AS a FROM (SELECT t.a AS a FROM (VALUES (1), (2)) AS t(a)) AS y /* source: y */", ) - self.assertEqual(node.alias, "") + self.assertEqual(node.source_name, "") downstream = node.downstream[0] self.assertEqual(downstream.source.sql(), "SELECT t.a AS a FROM (VALUES (1), (2)) AS t(a)") self.assertEqual(downstream.expression.sql(), "t.a AS a") - self.assertEqual(downstream.alias, "y") + self.assertEqual(downstream.source_name, "y") downstream = downstream.downstream[0] self.assertEqual(downstream.source.sql(), "(VALUES (1), (2)) AS t(a)") self.assertEqual(downstream.expression.sql(), "a") - self.assertEqual(downstream.alias, "y") + self.assertEqual(downstream.source_name, "y") def test_lineage_cte_name_appears_in_schema(self) -> None: schema = {"a": {"b": {"t1": {"c1": "int"}, "t2": {"c2": "int"}}}} @@ -168,22 +178,22 @@ class TestLineage(unittest.TestCase): node.source.sql(), "WITH t1 AS (SELECT t2.c2 AS c2 FROM a.b.t2 AS t2), inter AS (SELECT t1.c2 AS c2 FROM t1 AS t1) SELECT inter.c2 AS c2 FROM inter AS inter", ) - self.assertEqual(node.alias, "") + self.assertEqual(node.source_name, "") downstream = node.downstream[0] self.assertEqual(downstream.source.sql(), "SELECT t1.c2 AS c2 FROM t1 AS t1") self.assertEqual(downstream.expression.sql(), "t1.c2 AS c2") - self.assertEqual(downstream.alias, "") + self.assertEqual(downstream.source_name, "") downstream = downstream.downstream[0] self.assertEqual(downstream.source.sql(), "SELECT t2.c2 AS c2 FROM a.b.t2 AS t2") self.assertEqual(downstream.expression.sql(), "t2.c2 AS c2") - self.assertEqual(downstream.alias, "") + self.assertEqual(downstream.source_name, "") downstream = downstream.downstream[0] self.assertEqual(downstream.source.sql(), "a.b.t2 AS t2") self.assertEqual(downstream.expression.sql(), "a.b.t2 AS t2") - self.assertEqual(downstream.alias, "") + self.assertEqual(downstream.source_name, "") self.assertEqual(downstream.downstream, []) @@ -280,9 +290,11 @@ class TestLineage(unittest.TestCase): downstream_a = node.downstream[0] self.assertEqual(downstream_a.name, "0") self.assertEqual(downstream_a.source.sql(), "SELECT * FROM catalog.db.table_a AS table_a") + self.assertEqual(downstream_a.reference_node_name, "dataset") downstream_b = node.downstream[1] self.assertEqual(downstream_b.name, "0") self.assertEqual(downstream_b.source.sql(), "SELECT * FROM catalog.db.table_b AS table_b") + self.assertEqual(downstream_b.reference_node_name, "dataset") def test_lineage_source_union(self) -> None: query = "SELECT x, created_at FROM dataset;" @@ -306,12 +318,14 @@ class TestLineage(unittest.TestCase): downstream_a = node.downstream[0] self.assertEqual(downstream_a.name, "0") - self.assertEqual(downstream_a.alias, "dataset") + self.assertEqual(downstream_a.source_name, "dataset") self.assertEqual(downstream_a.source.sql(), "SELECT * FROM catalog.db.table_a AS table_a") + self.assertEqual(downstream_a.reference_node_name, "") downstream_b = node.downstream[1] self.assertEqual(downstream_b.name, "0") - self.assertEqual(downstream_b.alias, "dataset") + self.assertEqual(downstream_b.source_name, "dataset") self.assertEqual(downstream_b.source.sql(), "SELECT * FROM catalog.db.table_b AS table_b") + self.assertEqual(downstream_b.reference_node_name, "") def test_select_star(self) -> None: node = lineage("x", "SELECT x from (SELECT * from table_a)") @@ -332,3 +346,10 @@ class TestLineage(unittest.TestCase): "with _data as (select [struct(1 as a, 2 as b)] as col) select b from _data cross join unnest(col)", ) self.assertEqual(node.name, "b") + + def test_lineage_normalize(self) -> None: + node = lineage("a", "WITH x AS (SELECT 1 a) SELECT a FROM x", dialect="snowflake") + self.assertEqual(node.name, "A") + + with self.assertRaises(sqlglot.errors.SqlglotError): + lineage('"a"', "WITH x AS (SELECT 1 a) SELECT a FROM x", dialect="snowflake") |