Python ErrorDetail(字符串=';应为项目列表,但得到类型“ReturnDict”';,代码=';非#列表
当我测试Python ErrorDetail(字符串=';应为项目列表,但得到类型“ReturnDict”';,代码=';非#列表,python,django,unit-testing,django-rest-framework,factory,Python,Django,Unit Testing,Django Rest Framework,Factory,当我测试ThankYouMessage时,我得到错误{'images':{'non_field_errors':[ErrorDetail(string='应为项目列表,但得到类型为“ReturnDict.”,code='not_a_list')]} 测验 模型 工厂 串行器 如果我写image\u data=ThankYouMessageImageSerializer(self.Thankyou\u image,many=True)。data我得到TypeError:“ThankyImage”对
ThankYouMessage
时,我得到错误{'images':{'non_field_errors':[ErrorDetail(string='应为项目列表,但得到类型为“ReturnDict.”,code='not_a_list')]}
测验
模型
工厂
串行器
如果我写
image\u data=ThankYouMessageImageSerializer(self.Thankyou\u image,many=True)。data
我得到TypeError:“ThankyImage”对象不可编辑你的ThankYouMessage
将有一个相关字段图像作为ThankYouImage
的集合,所以你需要你的谢谢你的图片作为列表。您可以使用.build\u batch()
工厂方法构建它,并使用many=True
参数序列化它
类ThankYouMessagesSerializerTestCase(中间测试用例,测试用例):
def设置(自身)->无:
...
self.Thankyou\u images=ThankYouImageFactory.build\u批处理(3)
def测试\u谢谢\u消息\u反序列化(自我)->无:
image\u data=ThankYouMessageImageSerializer(self.Thankyou\u images,many=True)。数据
...
当我测试它时,您的image\u数据仍然无法序列化并显示此错误:
提交的数据不是文件。检查表单上的编码类型
但我认为这是另一个话题
顺便说一句,为什么不直接序列化生成的self.thank\u message
而不是thank\u data
?你想在这里测试什么
class ThankYouMessagesSerializerTestCase(MediaTestCase, TestCase):
def setUp(self) -> None:
self.thank_you_message = ThankYouMessageFactory()
self.thank_you_image = ThankYouImageFactory()
def test_thank_you_message_deserialize(self) -> None:
image_data = ThankYouMessageImageSerializer(self.thank_you_image).data
thank_you_data = ({'text': 'Some text', 'images': image_data})
serializer = ThankYouMessagesSerializer(data=thank_you_data)
serializer.is_valid()
print(serializer.errors)
# {'images': {'non_field_errors': [ErrorDetail(string='Expected a list of items but got type "ReturnDict".', code='not_a_list')]}}
self.assertTrue(serializer.is_valid())
class ThankYouMessage(models.Model):
donation = models.ForeignKey("donation.Donation", on_delete=models.CASCADE, related_name='thank_message', unique=True)
text = models.TextField()
class ThankImage(models.Model):
message = models.ForeignKey("donation.ThankYouMessage", on_delete=models.CASCADE, related_name='images')
image = models.ImageField(upload_to="thankmessageimages/")
class ThankYouMessageFactory(factory.django.DjangoModelFactory):
class Meta:
model = ThankYouMessage
donation = factory.SubFactory(DonationFactory)
text = factory.Sequence(lambda n: f"Thank you {n}")
When I test При тестировании сериализатора получаю ошибку
class ThankYouImageFactory(factory.django.DjangoModelFactory):
class Meta:
model = ThankImage
image = factory.django.ImageField(name=f"testimage.jpeg", color="blue")
message = factory.SubFactory(ThankYouMessageFactory)
class ThankYouMessageImageSerializer(ModelSerializer):
class Meta:
model = ThankImage
fields = '__all__'
read_only_fields = ("message", "id")
class ThankYouMessagesSerializer(ModelSerializer):
images = ThankYouMessageImageSerializer(many=True)
donation = serializers.CharField(source='donation.id', read_only=True)
donor_id = serializers.CharField(source='donation.donor.id', read_only=True)
class Meta:
model = ThankYouMessage
fields = 'text', 'donation', 'donor_id', 'images'