[django-json-api#214] Add error messages tests.

Author: riklaunim

example/tests/test_views.py

@@ -1,13 +1,18 @@
 import json
 
+from django.test import RequestFactory
 from django.utils import timezone
 from rest_framework.reverse import reverse
 
 from rest_framework.test import APITestCase
+from rest_framework.test import force_authenticate
 
 from rest_framework_json_api.utils import format_relation_name
 from example.models import Blog, Entry, Comment, Author
 
+from .. import views
+from . import TestBase
+
 
 class TestRelationshipView(APITestCase):
     def setUp(self):
@@ -184,3 +189,33 @@ def test_delete_to_many_relationship_with_change(self):
         }
         response = self.client.delete(url, data=json.dumps(request_data), content_type='application/vnd.api+json')
         assert response.status_code == 200, response.content.decode()
+
+
+class TestValidationErrorResponses(TestBase):
+    def test_if_returns_error_on_empty_post(self):
+        view = views.BlogViewSet.as_view({'post': 'create'})
+        response = self._get_create_response("{}", view)
+        self.assertEqual(400, response.status_code)
+        expected = [{'detail': 'Received document does not contain primary data', 'status': '400', 'source': {'pointer': '/data'}}]
+        self.assertEqual(expected, response.data)
+
+    def test_if_returns_error_on_missing_form_data_post(self):
+        view = views.BlogViewSet.as_view({'post': 'create'})
+        response = self._get_create_response('{"data":{"attributes":{},"type":"blogs"}}', view)
+        self.assertEqual(400, response.status_code)
+        expected = [{'status': '400', 'detail': 'This field is required.', 'source': {'pointer': '/data/attributes/name'}}]
+        self.assertEqual(expected, response.data)
+
+    def test_if_returns_error_on_bad_endpoint_name(self):
+        view = views.BlogViewSet.as_view({'post': 'create'})
+        response = self._get_create_response('{"data":{"attributes":{},"type":"bad"}}', view)
+        self.assertEqual(409, response.status_code)
+        expected = [{'detail': "The resource object's type (bad) is not the type that constitute the collection represented by the endpoint (blogs).", 'source': {'pointer': '/data'}, 'status': '409'}]
+        self.assertEqual(expected, response.data)
+
+    def _get_create_response(self, data, view):
+        factory = RequestFactory()
+        request = factory.post('/', data, content_type='application/vnd.api+json')
+        user = self.create_user('user', 'pass')
+        force_authenticate(request, user)
+        return view(request)