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Diffstat (limited to 'tests')
| -rw-r--r-- | tests/schema/tests.py | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/tests/schema/tests.py b/tests/schema/tests.py index b994c252d9..4522f5faf4 100644 --- a/tests/schema/tests.py +++ b/tests/schema/tests.py @@ -3095,6 +3095,33 @@ class SchemaTests(TransactionTestCase): if connection.features.can_introspect_default: self.assertIsNone(field.default) + def test_add_field_default_nullable(self): + with connection.schema_editor() as editor: + editor.create_model(Author) + # Add new nullable CharField with a default. + new_field = CharField(max_length=15, blank=True, null=True, default='surname') + new_field.set_attributes_from_name('surname') + with connection.schema_editor() as editor: + editor.add_field(Author, new_field) + Author.objects.create(name='Anonymous1') + with connection.cursor() as cursor: + cursor.execute('SELECT surname FROM schema_author;') + item = cursor.fetchall()[0] + self.assertIsNone(item[0]) + field = next( + f + for f in connection.introspection.get_table_description( + cursor, + 'schema_author', + ) + if f.name == 'surname' + ) + # Field is still nullable. + self.assertTrue(field.null_ok) + # The database default is no longer set. + if connection.features.can_introspect_default: + self.assertIn(field.default, ['NULL', None]) + def test_alter_field_default_dropped(self): # Create the table with connection.schema_editor() as editor: |