如何在 Django 中对保存用户输入进行单元测试？

Question

我正在做一个小项目，我希望能够测试 post 方法，如果电子邮件不存在则保存到数据库，并呈现到 index.html 以供查看以下。我查看了 YouTube 视频和博客教程，但似乎无法找到我正在寻找的答案。我已经包括了模型、视图和我当前的测试。

型号：

class EmailList(models.Model):
    email = models.TextField(unique=True)

查看：

def home(request):
    # Join Email List
    if request.method == 'POST':
        if request.POST.get('email'):
            email = request.POST.get('email')
            if not EmailList.objects.filter(email=email).exists():
                emailInput = EmailList()
                emailInput.email = email
                emailInput.save()
            return render(request, 'email/index.html', {})
    else:
        return render(request, 'email/index.html', {})

我目前进行的测试：

from django.test import TestCase
from email.models import EmailList   

class HomeViewTest(TestCase):
        @classmethod
        def setUpTestData(cls):
            # Create a new email to test
            EmailList.objects.create(email="test1@example.com")
    
        def test_home_view_url_exists_at_desired_location(self):
            response = self.client.get('')
            self.assertEqual(response.status_code, 200)
    
        def test_home_view_post_request_method(self):
            response = self.client.post('', {'email' : 'test1@example.com'})
            self.assertEqual(response.status_code, 200)
    
        def test_home_view_save_email(self):
            self.assertEqual(EmailList.objects.count(), 1)

Answer 1

你不应该在你的 setUpTestData 方法中创建一个 EmailList 的实例，因为你想检查你的视图是否正确创建了一个新实例，现在你在测试之前手动创建一个新实例.试试这个：

from django.test import TestCase
from tasckq.models import EmailList   

class HomeViewTest(TestCase):
   def test_home_view(self):
       # Tests the get method
       response = self.client.get('')
       self.assertEqual(response.status_code, 200)
       self.assertTemplateUsed(response, template_name='email/index.html')
       
       # Tests the post method
       
       email = 'test1@example.com'
       response = self.client.post('', {'email' : email})
       self.assertEqual(response.status_code, 200)
       self.assertTemplateUsed(response, template_name='email/index.html')
       # A new EmailList instance has been successfully created
       self.assertTrue(EmailList.objects.filter(email=email).exists())
       
       response = self.client.post('', {'email' : email})
       self.assertEqual(response.status_code, 200)
       self.assertTemplateUsed(response, template_name='email/index.html')
       # A new EmailList instance has not been created because the email was already in use
       self.assertEqual(EmailList.objects.count(), 1)

如何在 Django 中对保存用户输入进行单元测试？

How can I unit test saving user input in Django?

python

django

unit-testing

django-rest-framework

django-views