Commit 89616f0c authored by Tim Graham's avatar Tim Graham
Browse files

Made cosmetic cleanups in middleware tests.

parent f14ab700
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+68 −96
Original line number Diff line number Diff line
@@ -93,15 +93,15 @@ class CommonMiddlewareTest(SimpleTestCase):
        request = self.rf.get('/slash')
        request.method = 'POST'
        response = HttpResponseNotFound()
        with six.assertRaisesRegex(self, RuntimeError, msg % request.method):
        with self.assertRaisesMessage(RuntimeError, msg % request.method):
            CommonMiddleware().process_response(request, response)
        request = self.rf.get('/slash')
        request.method = 'PUT'
        with six.assertRaisesRegex(self, RuntimeError, msg % request.method):
        with self.assertRaisesMessage(RuntimeError, msg % request.method):
            CommonMiddleware().process_response(request, response)
        request = self.rf.get('/slash')
        request.method = 'PATCH'
        with six.assertRaisesRegex(self, RuntimeError, msg % request.method):
        with self.assertRaisesMessage(RuntimeError, msg % request.method):
            CommonMiddleware().process_response(request, response)

    @override_settings(APPEND_SLASH=False)
@@ -116,40 +116,34 @@ class CommonMiddlewareTest(SimpleTestCase):
    @override_settings(APPEND_SLASH=True)
    def test_append_slash_quoted(self):
        """
        URLs which require quoting should be redirected to their slash version ok.
        URLs which require quoting should be redirected to their slash version.
        """
        request = self.rf.get(quote('/needsquoting#'))
        response = HttpResponseNotFound()
        r = CommonMiddleware().process_response(request, response)
        self.assertEqual(r.status_code, 301)
        self.assertEqual(
            r.url,
            '/needsquoting%23/')
        self.assertEqual(r.url, '/needsquoting%23/')

    @override_settings(APPEND_SLASH=False, PREPEND_WWW=True)
    def test_prepend_www(self):
        request = self.rf.get('/path/')
        r = CommonMiddleware().process_request(request)
        self.assertEqual(r.status_code, 301)
        self.assertEqual(
            r.url,
            'http://www.testserver/path/')
        self.assertEqual(r.url, 'http://www.testserver/path/')

    @override_settings(APPEND_SLASH=True, PREPEND_WWW=True)
    def test_prepend_www_append_slash_have_slash(self):
        request = self.rf.get('/slash/')
        r = CommonMiddleware().process_request(request)
        self.assertEqual(r.status_code, 301)
        self.assertEqual(r.url,
            'http://www.testserver/slash/')
        self.assertEqual(r.url, 'http://www.testserver/slash/')

    @override_settings(APPEND_SLASH=True, PREPEND_WWW=True)
    def test_prepend_www_append_slash_slashless(self):
        request = self.rf.get('/slash')
        r = CommonMiddleware().process_request(request)
        self.assertEqual(r.status_code, 301)
        self.assertEqual(r.url,
            'http://www.testserver/slash/')
        self.assertEqual(r.url, 'http://www.testserver/slash/')

    # The following tests examine expected behavior given a custom URLconf that
    # overrides the default one through the request object.
@@ -196,8 +190,7 @@ class CommonMiddlewareTest(SimpleTestCase):
        request.urlconf = 'middleware.extra_urls'
        response = HttpResponseNotFound()
        r = CommonMiddleware().process_response(request, response)
        self.assertIsNotNone(r,
            "CommonMiddleware failed to return APPEND_SLASH redirect using request.urlconf")
        self.assertIsNotNone(r, "CommonMiddleware failed to return APPEND_SLASH redirect using request.urlconf")
        self.assertEqual(r.status_code, 301)
        self.assertEqual(r.url, '/customurlconf/slash/')

@@ -212,7 +205,7 @@ class CommonMiddlewareTest(SimpleTestCase):
        request.urlconf = 'middleware.extra_urls'
        request.method = 'POST'
        response = HttpResponseNotFound()
        with six.assertRaisesRegex(self, RuntimeError, 'end in a slash'):
        with self.assertRaisesMessage(RuntimeError, 'end in a slash'):
            CommonMiddleware().process_response(request, response)

    @override_settings(APPEND_SLASH=False)
@@ -229,18 +222,15 @@ class CommonMiddlewareTest(SimpleTestCase):
    @override_settings(APPEND_SLASH=True)
    def test_append_slash_quoted_custom_urlconf(self):
        """
        URLs which require quoting should be redirected to their slash version ok.
        URLs which require quoting should be redirected to their slash version.
        """
        request = self.rf.get(quote('/customurlconf/needsquoting#'))
        request.urlconf = 'middleware.extra_urls'
        response = HttpResponseNotFound()
        r = CommonMiddleware().process_response(request, response)
        self.assertIsNotNone(r,
            "CommonMiddleware failed to return APPEND_SLASH redirect using request.urlconf")
        self.assertIsNotNone(r, "CommonMiddleware failed to return APPEND_SLASH redirect using request.urlconf")
        self.assertEqual(r.status_code, 301)
        self.assertEqual(
            r.url,
            '/customurlconf/needsquoting%23/')
        self.assertEqual(r.url, '/customurlconf/needsquoting%23/')

    @override_settings(APPEND_SLASH=False, PREPEND_WWW=True)
    def test_prepend_www_custom_urlconf(self):
@@ -248,9 +238,7 @@ class CommonMiddlewareTest(SimpleTestCase):
        request.urlconf = 'middleware.extra_urls'
        r = CommonMiddleware().process_request(request)
        self.assertEqual(r.status_code, 301)
        self.assertEqual(
            r.url,
            'http://www.testserver/customurlconf/path/')
        self.assertEqual(r.url, 'http://www.testserver/customurlconf/path/')

    @override_settings(APPEND_SLASH=True, PREPEND_WWW=True)
    def test_prepend_www_append_slash_have_slash_custom_urlconf(self):
@@ -258,8 +246,7 @@ class CommonMiddlewareTest(SimpleTestCase):
        request.urlconf = 'middleware.extra_urls'
        r = CommonMiddleware().process_request(request)
        self.assertEqual(r.status_code, 301)
        self.assertEqual(r.url,
            'http://www.testserver/customurlconf/slash/')
        self.assertEqual(r.url, 'http://www.testserver/customurlconf/slash/')

    @override_settings(APPEND_SLASH=True, PREPEND_WWW=True)
    def test_prepend_www_append_slash_slashless_custom_urlconf(self):
@@ -267,8 +254,7 @@ class CommonMiddlewareTest(SimpleTestCase):
        request.urlconf = 'middleware.extra_urls'
        r = CommonMiddleware().process_request(request)
        self.assertEqual(r.status_code, 301)
        self.assertEqual(r.url,
            'http://www.testserver/customurlconf/slash/')
        self.assertEqual(r.url, 'http://www.testserver/customurlconf/slash/')

    # ETag + If-Not-Modified support tests

@@ -387,16 +373,14 @@ class BrokenLinkEmailsMiddlewareTest(SimpleTestCase):

    def test_custom_request_checker(self):
        class SubclassedMiddleware(BrokenLinkEmailsMiddleware):
            ignored_user_agent_patterns = (re.compile(r'Spider.*'),
                                           re.compile(r'Robot.*'))
            ignored_user_agent_patterns = (re.compile(r'Spider.*'), re.compile(r'Robot.*'))

            def is_ignorable_request(self, request, uri, domain, referer):
                '''Check user-agent in addition to normal checks.'''
                if super(SubclassedMiddleware, self).is_ignorable_request(request, uri, domain, referer):
                    return True
                user_agent = request.META['HTTP_USER_AGENT']
                return any(pattern.search(user_agent) for pattern in
                    self.ignored_user_agent_patterns)
                return any(pattern.search(user_agent) for pattern in self.ignored_user_agent_patterns)

        self.req.META['HTTP_REFERER'] = '/another/url/'
        self.req.META['HTTP_USER_AGENT'] = 'Spider machine 3.4'
@@ -558,88 +542,78 @@ class XFrameOptionsMiddlewareTest(SimpleTestCase):

    def test_same_origin(self):
        """
        Tests that the X_FRAME_OPTIONS setting can be set to SAMEORIGIN to
        have the middleware use that value for the HTTP header.
        The X_FRAME_OPTIONS setting can be set to SAMEORIGIN to have the
        middleware use that value for the HTTP header.
        """
        with override_settings(X_FRAME_OPTIONS='SAMEORIGIN'):
            r = XFrameOptionsMiddleware().process_response(HttpRequest(),
                                                           HttpResponse())
            r = XFrameOptionsMiddleware().process_response(HttpRequest(), HttpResponse())
            self.assertEqual(r['X-Frame-Options'], 'SAMEORIGIN')

        with override_settings(X_FRAME_OPTIONS='sameorigin'):
            r = XFrameOptionsMiddleware().process_response(HttpRequest(),
                                                       HttpResponse())
            r = XFrameOptionsMiddleware().process_response(HttpRequest(), HttpResponse())
            self.assertEqual(r['X-Frame-Options'], 'SAMEORIGIN')

    def test_deny(self):
        """
        Tests that the X_FRAME_OPTIONS setting can be set to DENY to
        have the middleware use that value for the HTTP header.
        The X_FRAME_OPTIONS setting can be set to DENY to have the middleware
        use that value for the HTTP header.
        """
        with override_settings(X_FRAME_OPTIONS='DENY'):
            r = XFrameOptionsMiddleware().process_response(HttpRequest(),
                                                           HttpResponse())
            r = XFrameOptionsMiddleware().process_response(HttpRequest(), HttpResponse())
            self.assertEqual(r['X-Frame-Options'], 'DENY')

        with override_settings(X_FRAME_OPTIONS='deny'):
            r = XFrameOptionsMiddleware().process_response(HttpRequest(),
                                                           HttpResponse())
            r = XFrameOptionsMiddleware().process_response(HttpRequest(), HttpResponse())
            self.assertEqual(r['X-Frame-Options'], 'DENY')

    def test_defaults_sameorigin(self):
        """
        Tests that if the X_FRAME_OPTIONS setting is not set then it defaults
        to SAMEORIGIN.
        If the X_FRAME_OPTIONS setting is not set then it defaults to
        SAMEORIGIN.
        """
        with override_settings(X_FRAME_OPTIONS=None):
            del settings.X_FRAME_OPTIONS    # restored by override_settings
            r = XFrameOptionsMiddleware().process_response(HttpRequest(),
                                                           HttpResponse())
            r = XFrameOptionsMiddleware().process_response(HttpRequest(), HttpResponse())
            self.assertEqual(r['X-Frame-Options'], 'SAMEORIGIN')

    def test_dont_set_if_set(self):
        """
        Tests that if the X-Frame-Options header is already set then the
        middleware does not attempt to override it.
        If the X-Frame-Options header is already set then the middleware does
        not attempt to override it.
        """
        with override_settings(X_FRAME_OPTIONS='DENY'):
            response = HttpResponse()
            response['X-Frame-Options'] = 'SAMEORIGIN'
            r = XFrameOptionsMiddleware().process_response(HttpRequest(),
                                                           response)
            r = XFrameOptionsMiddleware().process_response(HttpRequest(), response)
            self.assertEqual(r['X-Frame-Options'], 'SAMEORIGIN')

        with override_settings(X_FRAME_OPTIONS='SAMEORIGIN'):
            response = HttpResponse()
            response['X-Frame-Options'] = 'DENY'
            r = XFrameOptionsMiddleware().process_response(HttpRequest(),
                                                           response)
            r = XFrameOptionsMiddleware().process_response(HttpRequest(), response)
            self.assertEqual(r['X-Frame-Options'], 'DENY')

    def test_response_exempt(self):
        """
        Tests that if the response has a xframe_options_exempt attribute set
        to False then it still sets the header, but if it's set to True then
        it does not.
        If the response has an xframe_options_exempt attribute set to False
        then it still sets the header, but if it's set to True then it doesn't.
        """
        with override_settings(X_FRAME_OPTIONS='SAMEORIGIN'):
            response = HttpResponse()
            response.xframe_options_exempt = False
            r = XFrameOptionsMiddleware().process_response(HttpRequest(),
                                                           response)
            r = XFrameOptionsMiddleware().process_response(HttpRequest(), response)
            self.assertEqual(r['X-Frame-Options'], 'SAMEORIGIN')

            response = HttpResponse()
            response.xframe_options_exempt = True
            r = XFrameOptionsMiddleware().process_response(HttpRequest(),
                                                           response)
            self.assertEqual(r.get('X-Frame-Options', None), None)
            r = XFrameOptionsMiddleware().process_response(HttpRequest(), response)
            self.assertIsNone(r.get('X-Frame-Options'))

    def test_is_extendable(self):
        """
        Tests that the XFrameOptionsMiddleware method that determines the
        X-Frame-Options header value can be overridden based on something in
        the request or response.
        The XFrameOptionsMiddleware method that determines the X-Frame-Options
        header value can be overridden based on something in the request or
        response.
        """
        class OtherXFrameOptionsMiddleware(XFrameOptionsMiddleware):
            # This is just an example for testing purposes...
@@ -653,29 +627,26 @@ class XFrameOptionsMiddlewareTest(SimpleTestCase):
        with override_settings(X_FRAME_OPTIONS='DENY'):
            response = HttpResponse()
            response.sameorigin = True
            r = OtherXFrameOptionsMiddleware().process_response(HttpRequest(),
                                                                response)
            r = OtherXFrameOptionsMiddleware().process_response(HttpRequest(), response)
            self.assertEqual(r['X-Frame-Options'], 'SAMEORIGIN')

            request = HttpRequest()
            request.sameorigin = True
            r = OtherXFrameOptionsMiddleware().process_response(request,
                                                                HttpResponse())
            r = OtherXFrameOptionsMiddleware().process_response(request, HttpResponse())
            self.assertEqual(r['X-Frame-Options'], 'SAMEORIGIN')

        with override_settings(X_FRAME_OPTIONS='SAMEORIGIN'):
            r = OtherXFrameOptionsMiddleware().process_response(HttpRequest(),
                                                                HttpResponse())
            r = OtherXFrameOptionsMiddleware().process_response(HttpRequest(), HttpResponse())
            self.assertEqual(r['X-Frame-Options'], 'DENY')


class GZipMiddlewareTest(SimpleTestCase):
    """
    Tests the GZip middleware.
    Tests the GZipMiddleware.
    """
    short_string = b"This string is too short to be worth compressing."
    compressible_string = b'a' * 500
    uncompressible_string = b''.join(six.int2byte(random.randint(0, 255)) for _ in range(500))
    incompressible_string = b''.join(six.int2byte(random.randint(0, 255)) for _ in range(500))
    sequence = [b'a' * 500, b'b' * 200, b'a' * 300]
    sequence_unicode = ['a' * 500, 'é' * 200, 'a' * 300]

@@ -699,7 +670,7 @@ class GZipMiddlewareTest(SimpleTestCase):

    def test_compress_response(self):
        """
        Tests that compression is performed on responses with compressible content.
        Compression is performed on responses with compressible content.
        """
        r = GZipMiddleware().process_response(self.req, self.resp)
        self.assertEqual(self.decompress(r.content), self.compressible_string)
@@ -708,7 +679,7 @@ class GZipMiddlewareTest(SimpleTestCase):

    def test_compress_streaming_response(self):
        """
        Tests that compression is performed on responses with streaming content.
        Compression is performed on responses with streaming content.
        """
        r = GZipMiddleware().process_response(self.req, self.stream_resp)
        self.assertEqual(self.decompress(b''.join(r)), b''.join(self.sequence))
@@ -717,16 +688,19 @@ class GZipMiddlewareTest(SimpleTestCase):

    def test_compress_streaming_response_unicode(self):
        """
        Tests that compression is performed on responses with streaming Unicode content.
        Compression is performed on responses with streaming Unicode content.
        """
        r = GZipMiddleware().process_response(self.req, self.stream_resp_unicode)
        self.assertEqual(self.decompress(b''.join(r)), b''.join(x.encode('utf-8') for x in self.sequence_unicode))
        self.assertEqual(
            self.decompress(b''.join(r)),
            b''.join(x.encode('utf-8') for x in self.sequence_unicode)
        )
        self.assertEqual(r.get('Content-Encoding'), 'gzip')
        self.assertFalse(r.has_header('Content-Length'))

    def test_compress_file_response(self):
        """
        Tests that compression is performed on FileResponse.
        Compression is performed on FileResponse.
        """
        open_file = lambda: open(__file__, 'rb')
        with open_file() as file1:
@@ -740,8 +714,8 @@ class GZipMiddlewareTest(SimpleTestCase):

    def test_compress_non_200_response(self):
        """
        Tests that compression is performed on responses with a status other than 200.
        See #10762.
        Compression is performed on responses with a status other than 200
        (#10762).
        """
        self.resp.status_code = 404
        r = GZipMiddleware().process_response(self.req, self.resp)
@@ -750,54 +724,52 @@ class GZipMiddlewareTest(SimpleTestCase):

    def test_no_compress_short_response(self):
        """
        Tests that compression isn't performed on responses with short content.
        Compression isn't performed on responses with short content.
        """
        self.resp.content = self.short_string
        r = GZipMiddleware().process_response(self.req, self.resp)
        self.assertEqual(r.content, self.short_string)
        self.assertEqual(r.get('Content-Encoding'), None)
        self.assertIsNone(r.get('Content-Encoding'))

    def test_no_compress_compressed_response(self):
        """
        Tests that compression isn't performed on responses that are already compressed.
        Compression isn't performed on responses that are already compressed.
        """
        self.resp['Content-Encoding'] = 'deflate'
        r = GZipMiddleware().process_response(self.req, self.resp)
        self.assertEqual(r.content, self.compressible_string)
        self.assertEqual(r.get('Content-Encoding'), 'deflate')

    def test_no_compress_uncompressible_response(self):
    def test_no_compress_incompressible_response(self):
        """
        Tests that compression isn't performed on responses with uncompressible content.
        Compression isn't performed on responses with incompressible content.
        """
        self.resp.content = self.uncompressible_string
        self.resp.content = self.incompressible_string
        r = GZipMiddleware().process_response(self.req, self.resp)
        self.assertEqual(r.content, self.uncompressible_string)
        self.assertEqual(r.get('Content-Encoding'), None)
        self.assertEqual(r.content, self.incompressible_string)
        self.assertIsNone(r.get('Content-Encoding'))


@override_settings(USE_ETAGS=True)
class ETagGZipMiddlewareTest(SimpleTestCase):
    """
    Tests if the ETag middleware behaves correctly with GZip middleware.
    Tests if the ETagMiddleware behaves correctly with GZipMiddleware.
    """
    rf = RequestFactory()
    compressible_string = b'a' * 500

    def test_compress_response(self):
        """
        Tests that ETag is changed after gzip compression is performed.
        ETag is changed after gzip compression is performed.
        """
        request = self.rf.get('/', HTTP_ACCEPT_ENCODING='gzip, deflate')
        response = GZipMiddleware().process_response(request,
            CommonMiddleware().process_response(request,
                HttpResponse(self.compressible_string)))
            CommonMiddleware().process_response(request, HttpResponse(self.compressible_string)))
        gzip_etag = response.get('ETag')

        request = self.rf.get('/', HTTP_ACCEPT_ENCODING='')
        response = GZipMiddleware().process_response(request,
            CommonMiddleware().process_response(request,
                HttpResponse(self.compressible_string)))
            CommonMiddleware().process_response(request, HttpResponse(self.compressible_string)))
        nogzip_etag = response.get('ETag')

        self.assertNotEqual(gzip_etag, nogzip_etag)