test.py 文件源码

def test_add_not_null_constraint(self):
    self.test_create_table()
    peeweedbevolve.clear()
    class SomeModel(pw.Model):
      some_field = pw.CharField(null=False)
      class Meta:
        database = self.db
    self.evolve_and_check_noop()
    self.assertEqual(SomeModel.select().first().some_field, 'woot')
    with self.db.atomic() as txn:
      self.assertRaises(Exception, lambda: SomeModel.create(some_field=None))