import re from django.conf.urls.defaults import patterns, url, include from django.test import TestCase from djangorestframework import status from djangorestframework.compat import View as DjangoView from djangorestframework.response import Response from djangorestframework.views import View from djangorestframework.renderers import BaseRenderer, JSONRenderer, YAMLRenderer, \ XMLRenderer, JSONPRenderer, DocumentingHTMLRenderer from djangorestframework.parsers import YAMLParser, XMLParser from StringIO import StringIO import datetime from decimal import Decimal DUMMYSTATUS = status.HTTP_200_OK DUMMYCONTENT = 'dummycontent' RENDERER_A_SERIALIZER = lambda x: 'Renderer A: %s' % x RENDERER_B_SERIALIZER = lambda x: 'Renderer B: %s' % x class RendererA(BaseRenderer): media_type = 'mock/renderera' format = "formata" def render(self, obj=None, media_type=None): return RENDERER_A_SERIALIZER(obj) class RendererB(BaseRenderer): media_type = 'mock/rendererb' format = "formatb" def render(self, obj=None, media_type=None): return RENDERER_B_SERIALIZER(obj) class MockView(View): renderers = (RendererA, RendererB) def get(self, request, **kwargs): response = Response(DUMMYSTATUS, DUMMYCONTENT) return self.render(response) class MockGETView(View): def get(self, request, **kwargs): return {'foo': ['bar', 'baz']} class HTMLView(View): renderers = (DocumentingHTMLRenderer, ) def get(self, request, **kwargs): return 'text' class HTMLView1(View): renderers = (DocumentingHTMLRenderer, JSONRenderer) def get(self, request, **kwargs): return 'text' urlpatterns = patterns('', url(r'^.*\.(?P.+)$', MockView.as_view(renderers=[RendererA, RendererB])), url(r'^$', MockView.as_view(renderers=[RendererA, RendererB])), url(r'^jsonp/jsonrenderer$', MockGETView.as_view(renderers=[JSONRenderer, JSONPRenderer])), url(r'^jsonp/nojsonrenderer$', MockGETView.as_view(renderers=[JSONPRenderer])), url(r'^html$', HTMLView.as_view()), url(r'^html1$', HTMLView1.as_view()), url(r'^api', include('djangorestframework.urls', namespace='djangorestframework')) ) class RendererIntegrationTests(TestCase): """ End-to-end testing of renderers using an RendererMixin on a generic view. """ urls = 'djangorestframework.tests.renderers' def test_default_renderer_serializes_content(self): """If the Accept header is not set the default renderer should serialize the response.""" resp = self.client.get('/') self.assertEquals(resp['Content-Type'], RendererA.media_type) self.assertEquals(resp.content, RENDERER_A_SERIALIZER(DUMMYCONTENT)) self.assertEquals(resp.status_code, DUMMYSTATUS) def test_head_method_serializes_no_content(self): """No response must be included in HEAD requests.""" resp = self.client.head('/') self.assertEquals(resp.status_code, DUMMYSTATUS) self.assertEquals(resp['Content-Type'], RendererA.media_type) self.assertEquals(resp.content, '') def test_default_renderer_serializes_content_on_accept_any(self): """If the Accept header is set to */* the default renderer should serialize the response.""" resp = self.client.get('/', HTTP_ACCEPT='*/*') self.assertEquals(resp['Content-Type'], RendererA.media_type) self.assertEquals(resp.content, RENDERER_A_SERIALIZER(DUMMYCONTENT)) self.assertEquals(resp.status_code, DUMMYSTATUS) def test_specified_renderer_serializes_content_default_case(self): """If the Accept header is set the specified renderer should serialize the response. (In this case we check that works for the default renderer)""" resp = self.client.get('/', HTTP_ACCEPT=RendererA.media_type) self.assertEquals(resp['Content-Type'], RendererA.media_type) self.assertEquals(resp.content, RENDERER_A_SERIALIZER(DUMMYCONTENT)) self.assertEquals(resp.status_code, DUMMYSTATUS) def test_specified_renderer_serializes_content_non_default_case(self): """If the Accept header is set the specified renderer should serialize the response. (In this case we check that works for a non-default renderer)""" resp = self.client.get('/', HTTP_ACCEPT=RendererB.media_type) self.assertEquals(resp['Content-Type'], RendererB.media_type) self.assertEquals(resp.content, RENDERER_B_SERIALIZER(DUMMYCONTENT)) self.assertEquals(resp.status_code, DUMMYSTATUS) def test_specified_renderer_serializes_content_on_accept_query(self): """The '_accept' query string should behave in the same way as the Accept header.""" resp = self.client.get('/?_accept=%s' % RendererB.media_type) self.assertEquals(resp['Content-Type'], RendererB.media_type) self.assertEquals(resp.content, RENDERER_B_SERIALIZER(DUMMYCONTENT)) self.assertEquals(resp.status_code, DUMMYSTATUS) def test_unsatisfiable_accept_header_on_request_returns_406_status(self): """If the Accept header is unsatisfiable we should return a 406 Not Acceptable response.""" resp = self.client.get('/', HTTP_ACCEPT='foo/bar') self.assertEquals(resp.status_code, status.HTTP_406_NOT_ACCEPTABLE) def test_specified_renderer_serializes_content_on_format_query(self): """If a 'format' query is specified, the renderer with the matching format attribute should serialize the response.""" resp = self.client.get('/?format=%s' % RendererB.format) self.assertEquals(resp['Content-Type'], RendererB.media_type) self.assertEquals(resp.content, RENDERER_B_SERIALIZER(DUMMYCONTENT)) self.assertEquals(resp.status_code, DUMMYSTATUS) def test_specified_renderer_serializes_content_on_format_kwargs(self): """If a 'format' keyword arg is specified, the renderer with the matching format attribute should serialize the response.""" resp = self.client.get('/something.formatb') self.assertEquals(resp['Content-Type'], RendererB.media_type) self.assertEquals(resp.content, RENDERER_B_SERIALIZER(DUMMYCONTENT)) self.assertEquals(resp.status_code, DUMMYSTATUS) def test_specified_renderer_is_used_on_format_query_with_matching_accept(self): """If both a 'format' query and a matching Accept header specified, the renderer with the matching format attribute should serialize the response.""" resp = self.client.get('/?format=%s' % RendererB.format, HTTP_ACCEPT=RendererB.media_type) self.assertEquals(resp['Content-Type'], RendererB.media_type) self.assertEquals(resp.content, RENDERER_B_SERIALIZER(DUMMYCONTENT)) self.assertEquals(resp.status_code, DUMMYSTATUS) def test_conflicting_format_query_and_accept_ignores_accept(self): """If a 'format' query is specified that does not match the Accept header, we should only honor the 'format' query string.""" resp = self.client.get('/?format=%s' % RendererB.format, HTTP_ACCEPT='dummy') self.assertEquals(resp['Content-Type'], RendererB.media_type) self.assertEquals(resp.content, RENDERER_B_SERIALIZER(DUMMYCONTENT)) self.assertEquals(resp.status_code, DUMMYSTATUS) def test_bla(self): # What the f***? resp = self.client.get('/?format=formatb', HTTP_ACCEPT='text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8') self.assertEquals(resp['Content-Type'], RendererB.media_type) self.assertEquals(resp.content, RENDERER_B_SERIALIZER(DUMMYCONTENT)) self.assertEquals(resp.status_code, DUMMYSTATUS) _flat_repr = '{"foo": ["bar", "baz"]}' _indented_repr = '{\n "foo": [\n "bar",\n "baz"\n ]\n}' def strip_trailing_whitespace(content): """ Seems to be some inconsistencies re. trailing whitespace with different versions of the json lib. """ return re.sub(' +\n', '\n', content) class JSONRendererTests(TestCase): """ Tests specific to the JSON Renderer """ def test_without_content_type_args(self): """ Test basic JSON rendering. """ obj = {'foo': ['bar', 'baz']} renderer = JSONRenderer(None) content = renderer.render(obj, 'application/json') # Fix failing test case which depends on version of JSON library. self.assertEquals(content, _flat_repr) def test_with_content_type_args(self): """ Test JSON rendering with additional content type arguments supplied. """ obj = {'foo': ['bar', 'baz']} renderer = JSONRenderer(None) content = renderer.render(obj, 'application/json; indent=2') self.assertEquals(strip_trailing_whitespace(content), _indented_repr) class MockGETView(View): def get(self, request, *args, **kwargs): return Response({'foo': ['bar', 'baz']}) urlpatterns = patterns('', url(r'^jsonp/jsonrenderer$', MockGETView.as_view(renderers=[JSONRenderer, JSONPRenderer])), url(r'^jsonp/nojsonrenderer$', MockGETView.as_view(renderers=[JSONPRenderer])), ) class JSONPRendererTests(TestCase): """ Tests specific to the JSONP Renderer """ urls = 'djangorestframework.tests.renderers' def test_without_callback_with_json_renderer(self): """ Test JSONP rendering with View JSON Renderer. """ resp = self.client.get('/jsonp/jsonrenderer', HTTP_ACCEPT='application/json-p') self.assertEquals(resp.status_code, 200) self.assertEquals(resp['Content-Type'], 'application/json-p') self.assertEquals(resp.content, 'callback(%s);' % _flat_repr) def test_without_callback_without_json_renderer(self): """ Test JSONP rendering without View JSON Renderer. """ resp = self.client.get('/jsonp/nojsonrenderer', HTTP_ACCEPT='application/json-p') self.assertEquals(resp.status_code, 200) self.assertEquals(resp['Content-Type'], 'application/json-p') self.assertEquals(resp.content, 'callback(%s);' % _flat_repr) def test_with_callback(self): """ Test JSONP rendering with callback function name. """ callback_func = 'myjsonpcallback' resp = self.client.get('/jsonp/nojsonrenderer?callback=' + callback_func, HTTP_ACCEPT='application/json-p') self.assertEquals(resp.status_code, 200) self.assertEquals(resp['Content-Type'], 'application/json-p') self.assertEquals(resp.content, '%s(%s);' % (callback_func, _flat_repr)) if YAMLRenderer: _yaml_repr = 'foo: [bar, baz]\n' class YAMLRendererTests(TestCase): """ Tests specific to the JSON Renderer """ def test_render(self): """ Test basic YAML rendering. """ obj = {'foo': ['bar', 'baz']} renderer = YAMLRenderer(None) content = renderer.render(obj, 'application/yaml') self.assertEquals(content, _yaml_repr) def test_render_and_parse(self): """ Test rendering and then parsing returns the original object. IE obj -> render -> parse -> obj. """ obj = {'foo': ['bar', 'baz']} renderer = YAMLRenderer(None) parser = YAMLParser(None) content = renderer.render(obj, 'application/yaml') (data, files) = parser.parse(StringIO(content)) self.assertEquals(obj, data) class XMLRendererTestCase(TestCase): """ Tests specific to the XML Renderer """ _complex_data = { "creation_date": datetime.datetime(2011, 12, 25, 12, 45, 00), "name": "name", "sub_data_list": [ { "sub_id": 1, "sub_name": "first" }, { "sub_id": 2, "sub_name": "second" } ] } def test_render_string(self): """ Test XML rendering. """ renderer = XMLRenderer(None) content = renderer.render({'field': 'astring'}, 'application/xml') self.assertXMLContains(content, 'astring') def test_render_integer(self): """ Test XML rendering. """ renderer = XMLRenderer(None) content = renderer.render({'field': 111}, 'application/xml') self.assertXMLContains(content, '111') def test_render_datetime(self): """ Test XML rendering. """ renderer = XMLRenderer(None) content = renderer.render({ 'field': datetime.datetime(2011, 12, 25, 12, 45, 00) }, 'application/xml') self.assertXMLContains(content, '2011-12-25 12:45:00') def test_render_float(self): """ Test XML rendering. """ renderer = XMLRenderer(None) content = renderer.render({'field': 123.4}, 'application/xml') self.assertXMLContains(content, '123.4') def test_render_decimal(self): """ Test XML rendering. """ renderer = XMLRenderer(None) content = renderer.render({'field': Decimal('111.2')}, 'application/xml') self.assertXMLContains(content, '111.2') def test_render_none(self): """ Test XML rendering. """ renderer = XMLRenderer(None) content = renderer.render({'field': None}, 'application/xml') self.assertXMLContains(content, '') def test_render_complex_data(self): """ Test XML rendering. """ renderer = XMLRenderer(None) content = renderer.render(self._complex_data, 'application/xml') self.assertXMLContains(content, 'first') self.assertXMLContains(content, 'second') def test_render_and_parse_complex_data(self): """ Test XML rendering. """ renderer = XMLRenderer(None) content = StringIO(renderer.render(self._complex_data, 'application/xml')) parser = XMLParser() complex_data_out, dummy = parser.parse(content, {}, []) error_msg = "complex data differs!IN:\n %s \n\n OUT:\n %s" % (repr(self._complex_data), repr(complex_data_out)) self.assertEqual(self._complex_data, complex_data_out, error_msg) def assertXMLContains(self, xml, string): self.assertTrue(xml.startswith('\n')) self.assertTrue(xml.endswith('')) self.assertTrue(string in xml, '%r not in %r' % (string, xml))