30 lines
1.3 KiB
Python
30 lines
1.3 KiB
Python
from unittest import skipUnless
|
|
|
|
from django.db import connection
|
|
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'], ['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, table_columns, expected_columns in tests:
|
|
with self.subTest(check_clause):
|
|
check_columns = _parse_constraint_columns(check_clause, table_columns)
|
|
self.assertEqual(list(check_columns), expected_columns)
|