docstr: Test that a response is returned.
docstr_tok: ["Test","that","a","response","is","returned","."]
code: def test_post_unicode(self):
      """
      Test that a response is returned.
      """
      response = self.client.post(
          self.api_url,
          data=json.dumps({"text": "سلام"}),
          content_type="application/json",
          format="json",
      )
  
      self.assertEqual(response.status_code, 200)
      self.assertIn("text", response.json())
      self.assertGreater(len(response.json()["text"]), 1)
      self.assertIn("in_response_to", response.json())
  
file_path: ChatterBot/examples/django_app/tests/test_api.py
imports: import json
  from django.test import TestCase
  from django.urls import reverse
label_desc: Use image node_id 4 for calling the ApiTestCase obj's underlying member method code with example usage: obj.test_post_unicode() without return types