def test_field_rename_inside_atomic_block(self):
"""
NotImplementedError is raised when a model field rename is attempted
inside an atomic block.
"""
new_field = CharField(max_length=255, unique=True)
new_field.set_attributes_from_name('renamed')
msg = (
"Renaming the 'backends_author'.'name' column while in a "
"transaction is not supported on SQLite < 3.26 because it would "
"break referential integrity. Try adding `atomic = False` to the "
"Migration class.")
with self.assertRaisesMessage(NotSupportedError, msg):
with connection.schema_editor(atomic=True) as editor:
editor.alter_field(Author, Author._meta.get_field('name'),
new_field)
