title: How to say "is not equal" in test ? Assert is not equal
body: <p>I am testing my code in django and i have a case where i want to test if it is NOT equal. How can i do that ?</p>
  
  <p>i am using the doc from django here :
  <a href="https://docs.djangoproject.com/fr/2.2/topics/testing/tools/" rel="nofollow noreferrer">https://docs.djangoproject.com/fr/2.2/topics/testing/tools/</a></p>
  
  <p>Another example in react we have ".not" to say not equal.</p>
  
  <p>I tried with '.not' </p>
  
  <pre><code>class SimpleTest(TestCase):
      def test_details(self):
          response = self.client.get('/customer/details/')
          self.assertEqual(response.status_code, 200).not()
  </code></pre>
  
  <p>I expected to have one condition who test the no egality between my variable and my status code.</p>
  
  <p>Thank for your help.</p>