Use define_tables for IsOrIsNotDistinctFromTest

In Ie8127ef29f1ec91e7afb88e1429538c27a321784 Mike
failed to notice that this test is build on TablesTest and
has just the one test function, which means the table is
built up by the fixture.

Change-Id: I855431bc976fe8ec96559ec1a22bb294aecf3c40

diff --git a/lib/sqlalchemy/testing/suite/test_select.py b/lib/sqlalchemy/testing/suite/test_select.py
index 2c2317ff76bddea747e24947993acf686437c80d..852bfcf0dbc92442402f0cb84f554496436e81f4 100644 (file)
--- a/lib/sqlalchemy/testing/suite/test_select.py
+++ b/lib/sqlalchemy/testing/suite/test_select.py
@@ -1015,7 +1015,16 @@ class IsOrIsNotDistinctFromTest(fixtures.TablesTest):
     __backend__ = True
     __requires__ = ("supports_is_distinct_from",)
 
-    @testing.provide_metadata
+    @classmethod
+    def define_tables(cls, metadata):
+        Table(
+            "is_distinct_test",
+            metadata,
+            Column("id", Integer, primary_key=True),
+            Column("col_a", Integer, nullable=True),
+            Column("col_b", Integer, nullable=True),
+        )
+
     @testing.combinations(
         ("both_int_different", 0, 1, 1),
         ("both_int_same", 1, 1, 0),
@@ -1028,15 +1037,8 @@ class IsOrIsNotDistinctFromTest(fixtures.TablesTest):
     def test_is_or_isnot_distinct_from(
         self, col_a_value, col_b_value, expected_row_count_for_is, connection
     ):
-        meta = self.metadata
-        tbl = Table(
-            "is_distinct_test",
-            meta,
-            Column("id", Integer, primary_key=True),
-            Column("col_a", Integer, nullable=True),
-            Column("col_b", Integer, nullable=True),
-        )
-        meta.create_all()
+        tbl = self.tables.is_distinct_test
+
         connection.execute(
             tbl.insert(),
             [{"id": 1, "col_a": col_a_value, "col_b": col_b_value}],