What is Django's TestCase and how is it different from Python's unittest.TestCase? Django का TestCase क्या है और यह Python के unittest.TestCase से कैसे अलग है?

Django's django.test.TestCase extends Python's standard unittest.TestCase and adds Django-specific features, most importantly wrapping every test method in a database transaction that is rolled back at the end of the test, so tests never leave residual data behind and can run in any order without interfering with each other.

It also provides a test client for simulating HTTP requests, assertion helpers like assertRedirects() and assertContains(), and integrates with Django's fixture loading. For tests that don't need a database at all, SimpleTestCase is a faster alternative that disables the transaction wrapping.

from django.test import TestCase
from .models import Product

class ProductModelTest(TestCase):
    def test_str_representation(self):
        product = Product.objects.create(name="Laptop", price=999)
        self.assertEqual(str(product), "Laptop")