Refs #30593 -- Fixed introspection of check constraints columns on MariaDB.

1 files changed, 12 insertions, 5 deletions

diff --git a/tests/backends/mysql/test_introspection.py b/tests/backends/mysql/test_introspection.py
index 1b8fb94ed9..37fbcb1513 100644
--- a/tests/backends/mysql/test_introspection.py
+++ b/tests/backends/mysql/test_introspection.py
@@ -7,16 +7,23 @@ from django.test import TestCase
 @skipUnless(connection.vendor == 'mysql', 'MySQL tests')
 class ParsingTests(TestCase):
     def test_parse_constraint_columns(self):
+        _parse_constraint_columns = connection.introspection._parse_constraint_columns
         tests = (
-            ('`height` >= 0', ['height']),
-            ('`cost` BETWEEN 1 AND 10', ['cost']),
-            ('`ref1` > `ref2`', ['ref1', 'ref2']),
+            ('`height` >= 0', ['height'], ['height']),
+            ('`cost` BETWEEN 1 AND 10', ['cost'], ['cost']),
+            ('`ref1` > `ref2`', ['id', 'ref1', 'ref2'], ['ref1', 'ref2']),
             (
                 '`start` IS NULL OR `end` IS NULL OR `start` < `end`',
+                ['id', 'start', 'end'],
                 ['start', 'end'],
             ),
+            ('JSON_VALID(`json_field`)', ['json_field'], ['json_field']),
+            ('CHAR_LENGTH(`name`) > 2', ['name'], ['name']),
+            ("lower(`ref1`) != 'test'", ['id', 'owe', 'ref1'], ['ref1']),
+            ("lower(`ref1`) != 'test'", ['id', 'lower', 'ref1'], ['ref1']),
+            ("`name` LIKE 'test%'", ['name'], ['name']),
         )
-        for check_clause, expected_columns in tests:
+        for check_clause, table_columns, expected_columns in tests:
             with self.subTest(check_clause):
-                check_columns = connection.introspection._parse_constraint_columns(check_clause)
+                check_columns = _parse_constraint_columns(check_clause, table_columns)
                 self.assertEqual(list(check_columns), expected_columns)