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b5523bcc7d
Add `api_settings.EXCEPTION_HANDLER` to support custom error responses. Fixes #907.
143 lines
4.7 KiB
Python
143 lines
4.7 KiB
Python
from __future__ import unicode_literals
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import copy
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from django.test import TestCase
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from rest_framework import status
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from rest_framework.decorators import api_view
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from rest_framework.response import Response
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from rest_framework.settings import api_settings
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from rest_framework.test import APIRequestFactory
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from rest_framework.views import APIView
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factory = APIRequestFactory()
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class BasicView(APIView):
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def get(self, request, *args, **kwargs):
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return Response({'method': 'GET'})
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def post(self, request, *args, **kwargs):
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return Response({'method': 'POST', 'data': request.DATA})
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@api_view(['GET', 'POST', 'PUT', 'PATCH'])
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def basic_view(request):
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if request.method == 'GET':
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return {'method': 'GET'}
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elif request.method == 'POST':
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return {'method': 'POST', 'data': request.DATA}
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elif request.method == 'PUT':
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return {'method': 'PUT', 'data': request.DATA}
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elif request.method == 'PATCH':
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return {'method': 'PATCH', 'data': request.DATA}
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class ErrorView(APIView):
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def get(self, request, *args, **kwargs):
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raise Exception
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@api_view(['GET'])
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def error_view(request):
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raise Exception
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def sanitise_json_error(error_dict):
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"""
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Exact contents of JSON error messages depend on the installed version
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of json.
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"""
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ret = copy.copy(error_dict)
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chop = len('JSON parse error - No JSON object could be decoded')
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ret['detail'] = ret['detail'][:chop]
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return ret
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class ClassBasedViewIntegrationTests(TestCase):
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def setUp(self):
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self.view = BasicView.as_view()
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def test_400_parse_error(self):
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request = factory.post('/', 'f00bar', content_type='application/json')
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response = self.view(request)
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expected = {
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'detail': 'JSON parse error - No JSON object could be decoded'
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}
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self.assertEqual(response.status_code, status.HTTP_400_BAD_REQUEST)
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self.assertEqual(sanitise_json_error(response.data), expected)
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def test_400_parse_error_tunneled_content(self):
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content = 'f00bar'
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content_type = 'application/json'
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form_data = {
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api_settings.FORM_CONTENT_OVERRIDE: content,
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api_settings.FORM_CONTENTTYPE_OVERRIDE: content_type
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}
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request = factory.post('/', form_data)
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response = self.view(request)
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expected = {
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'detail': 'JSON parse error - No JSON object could be decoded'
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}
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self.assertEqual(response.status_code, status.HTTP_400_BAD_REQUEST)
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self.assertEqual(sanitise_json_error(response.data), expected)
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class FunctionBasedViewIntegrationTests(TestCase):
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def setUp(self):
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self.view = basic_view
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def test_400_parse_error(self):
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request = factory.post('/', 'f00bar', content_type='application/json')
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response = self.view(request)
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expected = {
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'detail': 'JSON parse error - No JSON object could be decoded'
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}
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self.assertEqual(response.status_code, status.HTTP_400_BAD_REQUEST)
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self.assertEqual(sanitise_json_error(response.data), expected)
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def test_400_parse_error_tunneled_content(self):
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content = 'f00bar'
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content_type = 'application/json'
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form_data = {
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api_settings.FORM_CONTENT_OVERRIDE: content,
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api_settings.FORM_CONTENTTYPE_OVERRIDE: content_type
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}
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request = factory.post('/', form_data)
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response = self.view(request)
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expected = {
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'detail': 'JSON parse error - No JSON object could be decoded'
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}
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self.assertEqual(response.status_code, status.HTTP_400_BAD_REQUEST)
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self.assertEqual(sanitise_json_error(response.data), expected)
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class TestCustomExceptionHandler(TestCase):
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def setUp(self):
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self.DEFAULT_HANDLER = api_settings.EXCEPTION_HANDLER
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def exception_handler(exc):
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return Response('Error!', status=status.HTTP_400_BAD_REQUEST)
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api_settings.EXCEPTION_HANDLER = exception_handler
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def tearDown(self):
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api_settings.EXCEPTION_HANDLER = self.DEFAULT_HANDLER
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def test_class_based_view_exception_handler(self):
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view = ErrorView.as_view()
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request = factory.get('/', content_type='application/json')
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response = view(request)
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expected = 'Error!'
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self.assertEqual(response.status_code, status.HTTP_400_BAD_REQUEST)
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self.assertEqual(response.data, expected)
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def test_function_based_view_exception_handler(self):
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view = error_view
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request = factory.get('/', content_type='application/json')
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response = view(request)
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expected = 'Error!'
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self.assertEqual(response.status_code, status.HTTP_400_BAD_REQUEST)
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self.assertEqual(response.data, expected)
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