python - 如何测试 Django 模型方法 __str__()

Question

我试图测试 __str__ 方法，当我试图在我的测试中访问它时，它返回我的模型实例(我认为是)

def test_str_is_equal_to_title(self):
    """
    Method `__str__` should be equal to field `title`
    """
    work = Work.objects.get(pk=1)
    self.assertEqual(work.__str__, work.title)

从测试中我得到:

AssertionError: '<bound method Work.__str__ of <Work: Test title>>' != 'Test title'

我应该如何比较这 2 个值才能通过测试？

Answer 1

根据documentation :

Model.__str__()

The __str__() method is called whenever you call str() on an object.

您需要在模型实例上调用 str():

self.assertEqual(str(work), work.title)