编辑“︁Django代码风格”︁（章节）

== 测试规范 ==

<source lang="python">
from django.test import TestCase
from django.urls import reverse
from .models import Article

class ArticleModelTest(TestCase):
    @classmethod
    def setUpTestData(cls):
        """创建测试数据"""
        cls.article = Article.objects.create(
            title="测试标题",
            content="测试内容"
        )

    def test_title_max_length(self):
        """测试标题最大长度"""
        max_length = self.article._meta.get_field('title').max_length
        self.assertEqual(max_length, 200)

    def test_article_str(self):
        """测试__str__方法"""
        self.assertEqual(str(self.article), "测试标题")

class ArticleViewTest(TestCase):
    def test_view_url_exists(self):
        """测试视图URL可访问"""
        response = self.client.get('/articles/')
        self.assertEqual(response.status_code, 200)
</source>