使用附加关键字参数时如何测试 DRF 序列化程序？

Question

我有一个简单的模型和一个序列化程序，它使用额外的关键字参数（extra_kwargs）来限制字段的最大值和最小值。我想在我的 tests.py 中编写两个测试用例来测试该字段（权重）的有效值和无效值。我该怎么做？ 我正在使用 Python 2.7。

型号

from django.db import models

class Person(models.Model):
    name = models.CharField(max_length=100)
    weight = models.FloatField()

序列化器

from rest_framework import serializers
from .models import Person

class PersonSerializer(serializers.ModelSerializer):
    model = Person
    fields = ('name', 'weight')
    extra_kwargs = {'weight': {'min_value': 5, 'max_value': 1000}}

tests.py

from django.test import TestCase
from .models import Person

class ModelTestCase(TestCase):
    def setUp(self):
        self.person = Person(name='Sam', weight=150)

    def test_when_weight_isValid(self):
        #e.g. when weight = 200

    def test_when_weight_notValid(self):
        #e.g. when weight = 3

Answer 1

import json

from django.urls import reverse
from django.contrib.auth import authenticate
from rest_framework import status
from rest_framework.test import APITestCase

from .models import *


class UserTests(APITestCase):
    def setUp(self):
        self.person = Person(name='Sam', weight=150)

    def test_when_weight_isvalid(self):
        url = reverse('person-detail', kwargs={'pk': self.person.id})
        data = {'weight': 200}
        response = self.client.patch(url, data, format='json')
        self.assertEqual(response.status_code, status.HTTP_200_OK)
        print json.dumps(response.data, ensure_ascii=False, indent=2)

类似这样，代码是未经测试的。