1 files changed, 142 insertions, 0 deletions
diff --git a/tests/test_views.py b/tests/test_views.py
new file mode 100644
index 00000000..65c7e50e
--- /dev/null
+++ b/tests/test_views.py
@@ -0,0 +1,142 @@
+from __future__ import unicode_literals
+
+import copy
+from django.test import TestCase
+from rest_framework import status
+from rest_framework.decorators import api_view
+from rest_framework.response import Response
+from rest_framework.settings import api_settings
+from rest_framework.test import APIRequestFactory
+from rest_framework.views import APIView
+
+factory = APIRequestFactory()
+
+
+class BasicView(APIView):
+    def get(self, request, *args, **kwargs):
+        return Response({'method': 'GET'})
+
+    def post(self, request, *args, **kwargs):
+        return Response({'method': 'POST', 'data': request.DATA})
+
+
+@api_view(['GET', 'POST', 'PUT', 'PATCH'])
+def basic_view(request):
+    if request.method == 'GET':
+        return {'method': 'GET'}
+    elif request.method == 'POST':
+        return {'method': 'POST', 'data': request.DATA}
+    elif request.method == 'PUT':
+        return {'method': 'PUT', 'data': request.DATA}
+    elif request.method == 'PATCH':
+        return {'method': 'PATCH', 'data': request.DATA}
+
+
+class ErrorView(APIView):
+    def get(self, request, *args, **kwargs):
+        raise Exception
+
+
+@api_view(['GET'])
+def error_view(request):
+    raise Exception
+
+
+def sanitise_json_error(error_dict):
+    """
+    Exact contents of JSON error messages depend on the installed version
+    of json.
+    """
+    ret = copy.copy(error_dict)
+    chop = len('JSON parse error - No JSON object could be decoded')
+    ret['detail'] = ret['detail'][:chop]
+    return ret
+
+
+class ClassBasedViewIntegrationTests(TestCase):
+    def setUp(self):
+        self.view = BasicView.as_view()
+
+    def test_400_parse_error(self):
+        request = factory.post('/', 'f00bar', content_type='application/json')
+        response = self.view(request)
+        expected = {
+            'detail': 'JSON parse error - No JSON object could be decoded'
+        }
+        self.assertEqual(response.status_code, status.HTTP_400_BAD_REQUEST)
+        self.assertEqual(sanitise_json_error(response.data), expected)
+
+    def test_400_parse_error_tunneled_content(self):
+        content = 'f00bar'
+        content_type = 'application/json'
+        form_data = {
+            api_settings.FORM_CONTENT_OVERRIDE: content,
+            api_settings.FORM_CONTENTTYPE_OVERRIDE: content_type
+        }
+        request = factory.post('/', form_data)
+        response = self.view(request)
+        expected = {
+            'detail': 'JSON parse error - No JSON object could be decoded'
+        }
+        self.assertEqual(response.status_code, status.HTTP_400_BAD_REQUEST)
+        self.assertEqual(sanitise_json_error(response.data), expected)
+
+
+class FunctionBasedViewIntegrationTests(TestCase):
+    def setUp(self):
+        self.view = basic_view
+
+    def test_400_parse_error(self):
+        request = factory.post('/', 'f00bar', content_type='application/json')
+        response = self.view(request)
+        expected = {
+            'detail': 'JSON parse error - No JSON object could be decoded'
+        }
+        self.assertEqual(response.status_code, status.HTTP_400_BAD_REQUEST)
+        self.assertEqual(sanitise_json_error(response.data), expected)
+
+    def test_400_parse_error_tunneled_content(self):
+        content = 'f00bar'
+        content_type = 'application/json'
+        form_data = {
+            api_settings.FORM_CONTENT_OVERRIDE: content,
+            api_settings.FORM_CONTENTTYPE_OVERRIDE: content_type
+        }
+        request = factory.post('/', form_data)
+        response = self.view(request)
+        expected = {
+            'detail': 'JSON parse error - No JSON object could be decoded'
+        }
+        self.assertEqual(response.status_code, status.HTTP_400_BAD_REQUEST)
+        self.assertEqual(sanitise_json_error(response.data), expected)
+
+
+class TestCustomExceptionHandler(TestCase):
+    def setUp(self):
+        self.DEFAULT_HANDLER = api_settings.EXCEPTION_HANDLER
+
+        def exception_handler(exc):
+            return Response('Error!', status=status.HTTP_400_BAD_REQUEST)
+
+        api_settings.EXCEPTION_HANDLER = exception_handler
+
+    def tearDown(self):
+        api_settings.EXCEPTION_HANDLER = self.DEFAULT_HANDLER
+
+    def test_class_based_view_exception_handler(self):
+        view = ErrorView.as_view()
+
+        request = factory.get('/', content_type='application/json')
+        response = view(request)
+        expected = 'Error!'
+        self.assertEqual(response.status_code, status.HTTP_400_BAD_REQUEST)
+        self.assertEqual(response.data, expected)
+
+    def test_function_based_view_exception_handler(self):
+        view = error_view
+
+        request = factory.get('/', content_type='application/json')
+        response = view(request)
+        expected = 'Error!'
+        self.assertEqual(response.status_code, status.HTTP_400_BAD_REQUEST)
+        self.assertEqual(response.data, expected)