Merge pull request #8761 from matrix-org/rav/test_request_rendering

Make `make_request` actually render the request

7 files changed, 0 insertions, 278 deletions

diff --git a/tests/rest/admin/test_admin.py b/tests/rest/admin/test_admin.py
index 9e4b0bca53..898e43411e 100644
--- a/tests/rest/admin/test_admin.py
+++ b/tests/rest/admin/test_admin.py
@@ -43,7 +43,6 @@ class VersionTestCase(unittest.HomeserverTestCase):
 
     def test_version_string(self):
         request, channel = self.make_request("GET", self.url, shorthand=False)
-        self.render(request)
 
         self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual(
@@ -76,7 +75,6 @@ class DeleteGroupTestCase(unittest.HomeserverTestCase):
             content={"localpart": "test"},
         )
 
-        self.render(request)
         self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"])
 
         group_id = channel.json_body["group_id"]
@@ -89,14 +87,12 @@ class DeleteGroupTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "PUT", url.encode("ascii"), access_token=self.admin_user_tok, content={}
         )
-        self.render(request)
         self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"])
 
         url = "/groups/%s/self/accept_invite" % (group_id,)
         request, channel = self.make_request(
             "PUT", url.encode("ascii"), access_token=self.other_user_token, content={}
         )
-        self.render(request)
         self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"])
 
         # Check other user knows they're in the group
@@ -112,7 +108,6 @@ class DeleteGroupTestCase(unittest.HomeserverTestCase):
             content={"localpart": "test"},
         )
 
-        self.render(request)
         self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"])
 
         # Check group returns 404
@@ -132,7 +127,6 @@ class DeleteGroupTestCase(unittest.HomeserverTestCase):
             "GET", url.encode("ascii"), access_token=self.admin_user_tok
         )
 
-        self.render(request)
         self.assertEqual(
             expect_code, int(channel.result["code"]), msg=channel.result["body"]
         )
@@ -144,7 +138,6 @@ class DeleteGroupTestCase(unittest.HomeserverTestCase):
             "GET", "/joined_groups".encode("ascii"), access_token=access_token
         )
 
-        self.render(request)
         self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"])
 
         return channel.json_body["groups"]
@@ -231,8 +224,6 @@ class QuarantineMediaTestCase(unittest.HomeserverTestCase):
             shorthand=False,
             access_token=admin_user_tok,
         )
-        request.render(self.download_resource)
-        self.pump(1.0)
 
         # Should be quarantined
         self.assertEqual(
@@ -253,7 +244,6 @@ class QuarantineMediaTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "POST", url.encode("ascii"), access_token=non_admin_user_tok,
         )
-        self.render(request)
 
         # Expect a forbidden error
         self.assertEqual(
@@ -267,7 +257,6 @@ class QuarantineMediaTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "POST", url.encode("ascii"), access_token=non_admin_user_tok,
         )
-        self.render(request)
 
         # Expect a forbidden error
         self.assertEqual(
@@ -301,8 +290,6 @@ class QuarantineMediaTestCase(unittest.HomeserverTestCase):
             shorthand=False,
             access_token=non_admin_user_tok,
         )
-        request.render(self.download_resource)
-        self.pump(1.0)
 
         # Should be successful
         self.assertEqual(200, int(channel.code), msg=channel.result["body"])
@@ -313,7 +300,6 @@ class QuarantineMediaTestCase(unittest.HomeserverTestCase):
             urllib.parse.quote(media_id),
         )
         request, channel = self.make_request("POST", url, access_token=admin_user_tok,)
-        self.render(request)
         self.pump(1.0)
         self.assertEqual(200, int(channel.code), msg=channel.result["body"])
 
@@ -366,7 +352,6 @@ class QuarantineMediaTestCase(unittest.HomeserverTestCase):
                 room_id
             )
         request, channel = self.make_request("POST", url, access_token=admin_user_tok,)
-        self.render(request)
         self.pump(1.0)
         self.assertEqual(200, int(channel.code), msg=channel.result["body"])
         self.assertEqual(
@@ -413,7 +398,6 @@ class QuarantineMediaTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "POST", url.encode("ascii"), access_token=admin_user_tok,
         )
-        self.render(request)
         self.pump(1.0)
         self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual(
@@ -456,7 +440,6 @@ class QuarantineMediaTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "POST", url.encode("ascii"), access_token=admin_user_tok,
         )
-        self.render(request)
         self.pump(1.0)
         self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual(
@@ -478,8 +461,6 @@ class QuarantineMediaTestCase(unittest.HomeserverTestCase):
             shorthand=False,
             access_token=non_admin_user_tok,
         )
-        request.render(self.download_resource)
-        self.pump(1.0)
 
         # Shouldn't be quarantined
         self.assertEqual(
diff --git a/tests/rest/admin/test_device.py b/tests/rest/admin/test_device.py
index d89eb90cfe..cf3a007598 100644
--- a/tests/rest/admin/test_device.py
+++ b/tests/rest/admin/test_device.py
@@ -51,19 +51,16 @@ class DeviceRestTestCase(unittest.HomeserverTestCase):
         Try to get a device of an user without authentication.
         """
         request, channel = self.make_request("GET", self.url, b"{}")
-        self.render(request)
 
         self.assertEqual(401, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual(Codes.MISSING_TOKEN, channel.json_body["errcode"])
 
         request, channel = self.make_request("PUT", self.url, b"{}")
-        self.render(request)
 
         self.assertEqual(401, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual(Codes.MISSING_TOKEN, channel.json_body["errcode"])
 
         request, channel = self.make_request("DELETE", self.url, b"{}")
-        self.render(request)
 
         self.assertEqual(401, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual(Codes.MISSING_TOKEN, channel.json_body["errcode"])
@@ -75,7 +72,6 @@ class DeviceRestTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "GET", self.url, access_token=self.other_user_token,
         )
-        self.render(request)
 
         self.assertEqual(403, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual(Codes.FORBIDDEN, channel.json_body["errcode"])
@@ -83,7 +79,6 @@ class DeviceRestTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "PUT", self.url, access_token=self.other_user_token,
         )
-        self.render(request)
 
         self.assertEqual(403, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual(Codes.FORBIDDEN, channel.json_body["errcode"])
@@ -91,7 +86,6 @@ class DeviceRestTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "DELETE", self.url, access_token=self.other_user_token,
         )
-        self.render(request)
 
         self.assertEqual(403, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual(Codes.FORBIDDEN, channel.json_body["errcode"])
@@ -108,7 +102,6 @@ class DeviceRestTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "GET", url, access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(404, channel.code, msg=channel.json_body)
         self.assertEqual(Codes.NOT_FOUND, channel.json_body["errcode"])
@@ -116,7 +109,6 @@ class DeviceRestTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "PUT", url, access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(404, channel.code, msg=channel.json_body)
         self.assertEqual(Codes.NOT_FOUND, channel.json_body["errcode"])
@@ -124,7 +116,6 @@ class DeviceRestTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "DELETE", url, access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(404, channel.code, msg=channel.json_body)
         self.assertEqual(Codes.NOT_FOUND, channel.json_body["errcode"])
@@ -141,7 +132,6 @@ class DeviceRestTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "GET", url, access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(400, channel.code, msg=channel.json_body)
         self.assertEqual("Can only lookup local users", channel.json_body["error"])
@@ -149,7 +139,6 @@ class DeviceRestTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "PUT", url, access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(400, channel.code, msg=channel.json_body)
         self.assertEqual("Can only lookup local users", channel.json_body["error"])
@@ -157,7 +146,6 @@ class DeviceRestTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "DELETE", url, access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(400, channel.code, msg=channel.json_body)
         self.assertEqual("Can only lookup local users", channel.json_body["error"])
@@ -173,7 +161,6 @@ class DeviceRestTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "GET", url, access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(404, channel.code, msg=channel.json_body)
         self.assertEqual(Codes.NOT_FOUND, channel.json_body["errcode"])
@@ -181,14 +168,12 @@ class DeviceRestTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "PUT", url, access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(200, channel.code, msg=channel.json_body)
 
         request, channel = self.make_request(
             "DELETE", url, access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         # Delete unknown device returns status 200
         self.assertEqual(200, channel.code, msg=channel.json_body)
@@ -218,7 +203,6 @@ class DeviceRestTestCase(unittest.HomeserverTestCase):
             access_token=self.admin_user_tok,
             content=body.encode(encoding="utf_8"),
         )
-        self.render(request)
 
         self.assertEqual(400, channel.code, msg=channel.json_body)
         self.assertEqual(Codes.TOO_LARGE, channel.json_body["errcode"])
@@ -227,7 +211,6 @@ class DeviceRestTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "GET", self.url, access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(200, channel.code, msg=channel.json_body)
         self.assertEqual("new display", channel.json_body["display_name"])
@@ -247,7 +230,6 @@ class DeviceRestTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "PUT", self.url, access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(200, channel.code, msg=channel.json_body)
 
@@ -255,7 +237,6 @@ class DeviceRestTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "GET", self.url, access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(200, channel.code, msg=channel.json_body)
         self.assertEqual("new display", channel.json_body["display_name"])
@@ -272,7 +253,6 @@ class DeviceRestTestCase(unittest.HomeserverTestCase):
             access_token=self.admin_user_tok,
             content=body.encode(encoding="utf_8"),
         )
-        self.render(request)
 
         self.assertEqual(200, channel.code, msg=channel.json_body)
 
@@ -280,7 +260,6 @@ class DeviceRestTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "GET", self.url, access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(200, channel.code, msg=channel.json_body)
         self.assertEqual("new displayname", channel.json_body["display_name"])
@@ -292,7 +271,6 @@ class DeviceRestTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "GET", self.url, access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(200, channel.code, msg=channel.json_body)
         self.assertEqual(self.other_user, channel.json_body["user_id"])
@@ -316,7 +294,6 @@ class DeviceRestTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "DELETE", self.url, access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(200, channel.code, msg=channel.json_body)
 
@@ -347,7 +324,6 @@ class DevicesRestTestCase(unittest.HomeserverTestCase):
         Try to list devices of an user without authentication.
         """
         request, channel = self.make_request("GET", self.url, b"{}")
-        self.render(request)
 
         self.assertEqual(401, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual(Codes.MISSING_TOKEN, channel.json_body["errcode"])
@@ -361,7 +337,6 @@ class DevicesRestTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "GET", self.url, access_token=other_user_token,
         )
-        self.render(request)
 
         self.assertEqual(403, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual(Codes.FORBIDDEN, channel.json_body["errcode"])
@@ -374,7 +349,6 @@ class DevicesRestTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "GET", url, access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(404, channel.code, msg=channel.json_body)
         self.assertEqual(Codes.NOT_FOUND, channel.json_body["errcode"])
@@ -388,7 +362,6 @@ class DevicesRestTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "GET", url, access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(400, channel.code, msg=channel.json_body)
         self.assertEqual("Can only lookup local users", channel.json_body["error"])
@@ -403,7 +376,6 @@ class DevicesRestTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "GET", self.url, access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(200, channel.code, msg=channel.json_body)
         self.assertEqual(0, channel.json_body["total"])
@@ -422,7 +394,6 @@ class DevicesRestTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "GET", self.url, access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(200, channel.code, msg=channel.json_body)
         self.assertEqual(number_devices, channel.json_body["total"])
@@ -461,7 +432,6 @@ class DeleteDevicesRestTestCase(unittest.HomeserverTestCase):
         Try to delete devices of an user without authentication.
         """
         request, channel = self.make_request("POST", self.url, b"{}")
-        self.render(request)
 
         self.assertEqual(401, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual(Codes.MISSING_TOKEN, channel.json_body["errcode"])
@@ -475,7 +445,6 @@ class DeleteDevicesRestTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "POST", self.url, access_token=other_user_token,
         )
-        self.render(request)
 
         self.assertEqual(403, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual(Codes.FORBIDDEN, channel.json_body["errcode"])
@@ -488,7 +457,6 @@ class DeleteDevicesRestTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "POST", url, access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(404, channel.code, msg=channel.json_body)
         self.assertEqual(Codes.NOT_FOUND, channel.json_body["errcode"])
@@ -502,7 +470,6 @@ class DeleteDevicesRestTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "POST", url, access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(400, channel.code, msg=channel.json_body)
         self.assertEqual("Can only lookup local users", channel.json_body["error"])
@@ -518,7 +485,6 @@ class DeleteDevicesRestTestCase(unittest.HomeserverTestCase):
             access_token=self.admin_user_tok,
             content=body.encode(encoding="utf_8"),
         )
-        self.render(request)
 
         # Delete unknown devices returns status 200
         self.assertEqual(200, channel.code, msg=channel.json_body)
@@ -550,7 +516,6 @@ class DeleteDevicesRestTestCase(unittest.HomeserverTestCase):
             access_token=self.admin_user_tok,
             content=body.encode(encoding="utf_8"),
         )
-        self.render(request)
 
         self.assertEqual(200, channel.code, msg=channel.json_body)
 
diff --git a/tests/rest/admin/test_event_reports.py b/tests/rest/admin/test_event_reports.py
index 303622217f..11b72c10f7 100644
--- a/tests/rest/admin/test_event_reports.py
+++ b/tests/rest/admin/test_event_reports.py
@@ -75,7 +75,6 @@ class EventReportsTestCase(unittest.HomeserverTestCase):
         Try to get an event report without authentication.
         """
         request, channel = self.make_request("GET", self.url, b"{}")
-        self.render(request)
 
         self.assertEqual(401, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual(Codes.MISSING_TOKEN, channel.json_body["errcode"])
@@ -88,7 +87,6 @@ class EventReportsTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "GET", self.url, access_token=self.other_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(403, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual(Codes.FORBIDDEN, channel.json_body["errcode"])
@@ -101,7 +99,6 @@ class EventReportsTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "GET", self.url, access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual(channel.json_body["total"], 20)
@@ -117,7 +114,6 @@ class EventReportsTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "GET", self.url + "?limit=5", access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual(channel.json_body["total"], 20)
@@ -133,7 +129,6 @@ class EventReportsTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "GET", self.url + "?from=5", access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual(channel.json_body["total"], 20)
@@ -149,7 +144,6 @@ class EventReportsTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "GET", self.url + "?from=5&limit=10", access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual(channel.json_body["total"], 20)
@@ -167,7 +161,6 @@ class EventReportsTestCase(unittest.HomeserverTestCase):
             self.url + "?room_id=%s" % self.room_id1,
             access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual(channel.json_body["total"], 10)
@@ -188,7 +181,6 @@ class EventReportsTestCase(unittest.HomeserverTestCase):
             self.url + "?user_id=%s" % self.other_user,
             access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual(channel.json_body["total"], 10)
@@ -209,7 +201,6 @@ class EventReportsTestCase(unittest.HomeserverTestCase):
             self.url + "?user_id=%s&room_id=%s" % (self.other_user, self.room_id1),
             access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual(channel.json_body["total"], 5)
@@ -230,7 +221,6 @@ class EventReportsTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "GET", self.url + "?dir=b", access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual(channel.json_body["total"], 20)
@@ -247,7 +237,6 @@ class EventReportsTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "GET", self.url + "?dir=f", access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual(channel.json_body["total"], 20)
@@ -268,7 +257,6 @@ class EventReportsTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "GET", self.url + "?dir=bar", access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(400, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual(Codes.INVALID_PARAM, channel.json_body["errcode"])
@@ -282,7 +270,6 @@ class EventReportsTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "GET", self.url + "?limit=-5", access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(400, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual(Codes.INVALID_PARAM, channel.json_body["errcode"])
@@ -295,7 +282,6 @@ class EventReportsTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "GET", self.url + "?from=-5", access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(400, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual(Codes.INVALID_PARAM, channel.json_body["errcode"])
@@ -310,7 +296,6 @@ class EventReportsTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "GET", self.url + "?limit=20", access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual(channel.json_body["total"], 20)
@@ -322,7 +307,6 @@ class EventReportsTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "GET", self.url + "?limit=21", access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual(channel.json_body["total"], 20)
@@ -334,7 +318,6 @@ class EventReportsTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "GET", self.url + "?limit=19", access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual(channel.json_body["total"], 20)
@@ -347,7 +330,6 @@ class EventReportsTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "GET", self.url + "?from=19", access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual(channel.json_body["total"], 20)
@@ -366,7 +348,6 @@ class EventReportsTestCase(unittest.HomeserverTestCase):
             json.dumps({"score": -100, "reason": "this makes me sad"}),
             access_token=user_tok,
         )
-        self.render(request)
         self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"])
 
     def _check_fields(self, content):
@@ -419,7 +400,6 @@ class EventReportDetailTestCase(unittest.HomeserverTestCase):
         Try to get event report without authentication.
         """
         request, channel = self.make_request("GET", self.url, b"{}")
-        self.render(request)
 
         self.assertEqual(401, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual(Codes.MISSING_TOKEN, channel.json_body["errcode"])
@@ -432,7 +412,6 @@ class EventReportDetailTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "GET", self.url, access_token=self.other_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(403, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual(Codes.FORBIDDEN, channel.json_body["errcode"])
@@ -445,7 +424,6 @@ class EventReportDetailTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "GET", self.url, access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"])
         self._check_fields(channel.json_body)
@@ -461,7 +439,6 @@ class EventReportDetailTestCase(unittest.HomeserverTestCase):
             "/_synapse/admin/v1/event_reports/-123",
             access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(400, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual(Codes.INVALID_PARAM, channel.json_body["errcode"])
@@ -476,7 +453,6 @@ class EventReportDetailTestCase(unittest.HomeserverTestCase):
             "/_synapse/admin/v1/event_reports/abcdef",
             access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(400, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual(Codes.INVALID_PARAM, channel.json_body["errcode"])
@@ -491,7 +467,6 @@ class EventReportDetailTestCase(unittest.HomeserverTestCase):
             "/_synapse/admin/v1/event_reports/",
             access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(400, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual(Codes.INVALID_PARAM, channel.json_body["errcode"])
@@ -510,7 +485,6 @@ class EventReportDetailTestCase(unittest.HomeserverTestCase):
             "/_synapse/admin/v1/event_reports/123",
             access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(404, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual(Codes.NOT_FOUND, channel.json_body["errcode"])
@@ -528,7 +502,6 @@ class EventReportDetailTestCase(unittest.HomeserverTestCase):
             json.dumps({"score": -100, "reason": "this makes me sad"}),
             access_token=user_tok,
         )
-        self.render(request)
         self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"])
 
     def _check_fields(self, content):
diff --git a/tests/rest/admin/test_media.py b/tests/rest/admin/test_media.py
index 36e07f1b36..2a65ab33bd 100644
--- a/tests/rest/admin/test_media.py
+++ b/tests/rest/admin/test_media.py
@@ -51,7 +51,6 @@ class DeleteMediaByIDTestCase(unittest.HomeserverTestCase):
         url = "/_synapse/admin/v1/media/%s/%s" % (self.server_name, "12345")
 
         request, channel = self.make_request("DELETE", url, b"{}")
-        self.render(request)
 
         self.assertEqual(401, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual(Codes.MISSING_TOKEN, channel.json_body["errcode"])
@@ -68,7 +67,6 @@ class DeleteMediaByIDTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "DELETE", url, access_token=self.other_user_token,
         )
-        self.render(request)
 
         self.assertEqual(403, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual(Codes.FORBIDDEN, channel.json_body["errcode"])
@@ -82,7 +80,6 @@ class DeleteMediaByIDTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "DELETE", url, access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(404, channel.code, msg=channel.json_body)
         self.assertEqual(Codes.NOT_FOUND, channel.json_body["errcode"])
@@ -96,7 +93,6 @@ class DeleteMediaByIDTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "DELETE", url, access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(400, channel.code, msg=channel.json_body)
         self.assertEqual("Can only delete local media", channel.json_body["error"])
@@ -133,8 +129,6 @@ class DeleteMediaByIDTestCase(unittest.HomeserverTestCase):
             shorthand=False,
             access_token=self.admin_user_tok,
         )
-        request.render(download_resource)
-        self.pump(1.0)
 
         # Should be successful
         self.assertEqual(
@@ -155,7 +149,6 @@ class DeleteMediaByIDTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "DELETE", url, access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(200, channel.code, msg=channel.json_body)
         self.assertEqual(1, channel.json_body["total"])
@@ -172,8 +165,6 @@ class DeleteMediaByIDTestCase(unittest.HomeserverTestCase):
             shorthand=False,
             access_token=self.admin_user_tok,
         )
-        request.render(download_resource)
-        self.pump(1.0)
         self.assertEqual(
             404,
             channel.code,
@@ -215,7 +206,6 @@ class DeleteMediaByDateSizeTestCase(unittest.HomeserverTestCase):
         """
 
         request, channel = self.make_request("POST", self.url, b"{}")
-        self.render(request)
 
         self.assertEqual(401, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual(Codes.MISSING_TOKEN, channel.json_body["errcode"])
@@ -230,7 +220,6 @@ class DeleteMediaByDateSizeTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "POST", self.url, access_token=self.other_user_token,
         )
-        self.render(request)
 
         self.assertEqual(403, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual(Codes.FORBIDDEN, channel.json_body["errcode"])
@@ -244,7 +233,6 @@ class DeleteMediaByDateSizeTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "POST", url + "?before_ts=1234", access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(400, channel.code, msg=channel.json_body)
         self.assertEqual("Can only delete local media", channel.json_body["error"])
@@ -256,7 +244,6 @@ class DeleteMediaByDateSizeTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "POST", self.url, access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(400, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual(Codes.MISSING_PARAM, channel.json_body["errcode"])
@@ -271,7 +258,6 @@ class DeleteMediaByDateSizeTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "POST", self.url + "?before_ts=-1234", access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(400, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual(Codes.INVALID_PARAM, channel.json_body["errcode"])
@@ -285,7 +271,6 @@ class DeleteMediaByDateSizeTestCase(unittest.HomeserverTestCase):
             self.url + "?before_ts=1234&size_gt=-1234",
             access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(400, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual(Codes.INVALID_PARAM, channel.json_body["errcode"])
@@ -299,7 +284,6 @@ class DeleteMediaByDateSizeTestCase(unittest.HomeserverTestCase):
             self.url + "?before_ts=1234&keep_profiles=not_bool",
             access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(400, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual(Codes.UNKNOWN, channel.json_body["errcode"])
@@ -330,7 +314,6 @@ class DeleteMediaByDateSizeTestCase(unittest.HomeserverTestCase):
             self.url + "?before_ts=" + str(now_ms),
             access_token=self.admin_user_tok,
         )
-        self.render(request)
         self.assertEqual(200, channel.code, msg=channel.json_body)
         self.assertEqual(1, channel.json_body["total"])
         self.assertEqual(
@@ -355,7 +338,6 @@ class DeleteMediaByDateSizeTestCase(unittest.HomeserverTestCase):
             self.url + "?before_ts=" + str(now_ms),
             access_token=self.admin_user_tok,
         )
-        self.render(request)
         self.assertEqual(200, channel.code, msg=channel.json_body)
         self.assertEqual(0, channel.json_body["total"])
 
@@ -368,7 +350,6 @@ class DeleteMediaByDateSizeTestCase(unittest.HomeserverTestCase):
             self.url + "?before_ts=" + str(now_ms),
             access_token=self.admin_user_tok,
         )
-        self.render(request)
         self.assertEqual(200, channel.code, msg=channel.json_body)
         self.assertEqual(1, channel.json_body["total"])
         self.assertEqual(
@@ -392,7 +373,6 @@ class DeleteMediaByDateSizeTestCase(unittest.HomeserverTestCase):
             self.url + "?before_ts=" + str(now_ms) + "&size_gt=67",
             access_token=self.admin_user_tok,
         )
-        self.render(request)
         self.assertEqual(200, channel.code, msg=channel.json_body)
         self.assertEqual(0, channel.json_body["total"])
 
@@ -404,7 +384,6 @@ class DeleteMediaByDateSizeTestCase(unittest.HomeserverTestCase):
             self.url + "?before_ts=" + str(now_ms) + "&size_gt=66",
             access_token=self.admin_user_tok,
         )
-        self.render(request)
         self.assertEqual(200, channel.code, msg=channel.json_body)
         self.assertEqual(1, channel.json_body["total"])
         self.assertEqual(
@@ -429,7 +408,6 @@ class DeleteMediaByDateSizeTestCase(unittest.HomeserverTestCase):
             content=json.dumps({"avatar_url": "mxc://%s" % (server_and_media_id,)}),
             access_token=self.admin_user_tok,
         )
-        self.render(request)
         self.assertEqual(200, channel.code, msg=channel.json_body)
 
         now_ms = self.clock.time_msec()
@@ -438,7 +416,6 @@ class DeleteMediaByDateSizeTestCase(unittest.HomeserverTestCase):
             self.url + "?before_ts=" + str(now_ms) + "&keep_profiles=true",
             access_token=self.admin_user_tok,
         )
-        self.render(request)
         self.assertEqual(200, channel.code, msg=channel.json_body)
         self.assertEqual(0, channel.json_body["total"])
 
@@ -450,7 +427,6 @@ class DeleteMediaByDateSizeTestCase(unittest.HomeserverTestCase):
             self.url + "?before_ts=" + str(now_ms) + "&keep_profiles=false",
             access_token=self.admin_user_tok,
         )
-        self.render(request)
         self.assertEqual(200, channel.code, msg=channel.json_body)
         self.assertEqual(1, channel.json_body["total"])
         self.assertEqual(
@@ -476,7 +452,6 @@ class DeleteMediaByDateSizeTestCase(unittest.HomeserverTestCase):
             content=json.dumps({"url": "mxc://%s" % (server_and_media_id,)}),
             access_token=self.admin_user_tok,
         )
-        self.render(request)
         self.assertEqual(200, channel.code, msg=channel.json_body)
 
         now_ms = self.clock.time_msec()
@@ -485,7 +460,6 @@ class DeleteMediaByDateSizeTestCase(unittest.HomeserverTestCase):
             self.url + "?before_ts=" + str(now_ms) + "&keep_profiles=true",
             access_token=self.admin_user_tok,
         )
-        self.render(request)
         self.assertEqual(200, channel.code, msg=channel.json_body)
         self.assertEqual(0, channel.json_body["total"])
 
@@ -497,7 +471,6 @@ class DeleteMediaByDateSizeTestCase(unittest.HomeserverTestCase):
             self.url + "?before_ts=" + str(now_ms) + "&keep_profiles=false",
             access_token=self.admin_user_tok,
         )
-        self.render(request)
         self.assertEqual(200, channel.code, msg=channel.json_body)
         self.assertEqual(1, channel.json_body["total"])
         self.assertEqual(
@@ -548,8 +521,6 @@ class DeleteMediaByDateSizeTestCase(unittest.HomeserverTestCase):
             shorthand=False,
             access_token=self.admin_user_tok,
         )
-        request.render(download_resource)
-        self.pump(1.0)
 
         if expect_success:
             self.assertEqual(
diff --git a/tests/rest/admin/test_room.py b/tests/rest/admin/test_room.py
index 535d68f284..54824a5410 100644
--- a/tests/rest/admin/test_room.py
+++ b/tests/rest/admin/test_room.py
@@ -85,7 +85,6 @@ class ShutdownRoomTestCase(unittest.HomeserverTestCase):
             json.dumps({"new_room_user_id": self.admin_user}),
             access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"])
 
@@ -110,7 +109,6 @@ class ShutdownRoomTestCase(unittest.HomeserverTestCase):
             json.dumps({"history_visibility": "world_readable"}),
             access_token=self.other_user_token,
         )
-        self.render(request)
         self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"])
 
         # Test that the admin can still send shutdown
@@ -121,7 +119,6 @@ class ShutdownRoomTestCase(unittest.HomeserverTestCase):
             json.dumps({"new_room_user_id": self.admin_user}),
             access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"])
 
@@ -136,7 +133,6 @@ class ShutdownRoomTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "GET", url.encode("ascii"), access_token=self.admin_user_tok
         )
-        self.render(request)
         self.assertEqual(
             expect_code, int(channel.result["code"]), msg=channel.result["body"]
         )
@@ -145,7 +141,6 @@ class ShutdownRoomTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "GET", url.encode("ascii"), access_token=self.admin_user_tok
         )
-        self.render(request)
         self.assertEqual(
             expect_code, int(channel.result["code"]), msg=channel.result["body"]
         )
@@ -192,7 +187,6 @@ class DeleteRoomTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "POST", self.url, json.dumps({}), access_token=self.other_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(403, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual(Codes.FORBIDDEN, channel.json_body["errcode"])
@@ -206,7 +200,6 @@ class DeleteRoomTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "POST", url, json.dumps({}), access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(404, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual(Codes.NOT_FOUND, channel.json_body["errcode"])
@@ -220,7 +213,6 @@ class DeleteRoomTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "POST", url, json.dumps({}), access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(400, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual(
@@ -239,7 +231,6 @@ class DeleteRoomTestCase(unittest.HomeserverTestCase):
             content=body.encode(encoding="utf_8"),
             access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"])
         self.assertIn("new_room_id", channel.json_body)
@@ -259,7 +250,6 @@ class DeleteRoomTestCase(unittest.HomeserverTestCase):
             content=body.encode(encoding="utf_8"),
             access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(400, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual(
@@ -278,7 +268,6 @@ class DeleteRoomTestCase(unittest.HomeserverTestCase):
             content=body.encode(encoding="utf_8"),
             access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(400, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual(Codes.BAD_JSON, channel.json_body["errcode"])
@@ -295,7 +284,6 @@ class DeleteRoomTestCase(unittest.HomeserverTestCase):
             content=body.encode(encoding="utf_8"),
             access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(400, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual(Codes.BAD_JSON, channel.json_body["errcode"])
@@ -322,7 +310,6 @@ class DeleteRoomTestCase(unittest.HomeserverTestCase):
             content=body.encode(encoding="utf_8"),
             access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual(None, channel.json_body["new_room_id"])
@@ -356,7 +343,6 @@ class DeleteRoomTestCase(unittest.HomeserverTestCase):
             content=body.encode(encoding="utf_8"),
             access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual(None, channel.json_body["new_room_id"])
@@ -391,7 +377,6 @@ class DeleteRoomTestCase(unittest.HomeserverTestCase):
             content=body.encode(encoding="utf_8"),
             access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual(None, channel.json_body["new_room_id"])
@@ -439,7 +424,6 @@ class DeleteRoomTestCase(unittest.HomeserverTestCase):
             json.dumps({"new_room_user_id": self.admin_user}),
             access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual(self.other_user, channel.json_body["kicked_users"][0])
@@ -470,7 +454,6 @@ class DeleteRoomTestCase(unittest.HomeserverTestCase):
             json.dumps({"history_visibility": "world_readable"}),
             access_token=self.other_user_tok,
         )
-        self.render(request)
         self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"])
 
         # Test that room is not purged
@@ -488,7 +471,6 @@ class DeleteRoomTestCase(unittest.HomeserverTestCase):
             json.dumps({"new_room_user_id": self.admin_user}),
             access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual(self.other_user, channel.json_body["kicked_users"][0])
@@ -551,7 +533,6 @@ class DeleteRoomTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "GET", url.encode("ascii"), access_token=self.admin_user_tok
         )
-        self.render(request)
         self.assertEqual(
             expect_code, int(channel.result["code"]), msg=channel.result["body"]
         )
@@ -560,7 +541,6 @@ class DeleteRoomTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "GET", url.encode("ascii"), access_token=self.admin_user_tok
         )
-        self.render(request)
         self.assertEqual(
             expect_code, int(channel.result["code"]), msg=channel.result["body"]
         )
@@ -595,7 +575,6 @@ class PurgeRoomTestCase(unittest.HomeserverTestCase):
             {"room_id": room_id},
             access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"])
 
@@ -647,7 +626,6 @@ class RoomTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "GET", url.encode("ascii"), access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         # Check request completed successfully
         self.assertEqual(200, int(channel.code), msg=channel.json_body)
@@ -729,7 +707,6 @@ class RoomTestCase(unittest.HomeserverTestCase):
             request, channel = self.make_request(
                 "GET", url.encode("ascii"), access_token=self.admin_user_tok,
             )
-            self.render(request)
             self.assertEqual(
                 200, int(channel.result["code"]), msg=channel.result["body"]
             )
@@ -770,7 +747,6 @@ class RoomTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "GET", url.encode("ascii"), access_token=self.admin_user_tok,
         )
-        self.render(request)
         self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"])
 
     def test_correct_room_attributes(self):
@@ -794,7 +770,6 @@ class RoomTestCase(unittest.HomeserverTestCase):
             {"room_id": room_id},
             access_token=self.admin_user_tok,
         )
-        self.render(request)
         self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"])
 
         # Set this new alias as the canonical alias for this room
@@ -822,7 +797,6 @@ class RoomTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "GET", url.encode("ascii"), access_token=self.admin_user_tok,
         )
-        self.render(request)
         self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"])
 
         # Check that rooms were returned
@@ -867,7 +841,6 @@ class RoomTestCase(unittest.HomeserverTestCase):
                 {"room_id": room_id},
                 access_token=admin_user_tok,
             )
-            self.render(request)
             self.assertEqual(
                 200, int(channel.result["code"]), msg=channel.result["body"]
             )
@@ -905,7 +878,6 @@ class RoomTestCase(unittest.HomeserverTestCase):
             request, channel = self.make_request(
                 "GET", url.encode("ascii"), access_token=self.admin_user_tok,
             )
-            self.render(request)
             self.assertEqual(200, channel.code, msg=channel.json_body)
 
             # Check that rooms were returned
@@ -1042,7 +1014,6 @@ class RoomTestCase(unittest.HomeserverTestCase):
             request, channel = self.make_request(
                 "GET", url.encode("ascii"), access_token=self.admin_user_tok,
             )
-            self.render(request)
             self.assertEqual(expected_http_code, channel.code, msg=channel.json_body)
 
             if expected_http_code != 200:
@@ -1104,7 +1075,6 @@ class RoomTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "GET", url.encode("ascii"), access_token=self.admin_user_tok,
         )
-        self.render(request)
         self.assertEqual(200, channel.code, msg=channel.json_body)
 
         self.assertIn("room_id", channel.json_body)
@@ -1152,7 +1122,6 @@ class RoomTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "GET", url.encode("ascii"), access_token=self.admin_user_tok,
         )
-        self.render(request)
         self.assertEqual(200, channel.code, msg=channel.json_body)
 
         self.assertCountEqual(
@@ -1164,7 +1133,6 @@ class RoomTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "GET", url.encode("ascii"), access_token=self.admin_user_tok,
         )
-        self.render(request)
         self.assertEqual(200, channel.code, msg=channel.json_body)
 
         self.assertCountEqual(
@@ -1208,7 +1176,6 @@ class JoinAliasRoomTestCase(unittest.HomeserverTestCase):
             content=body.encode(encoding="utf_8"),
             access_token=self.second_tok,
         )
-        self.render(request)
 
         self.assertEqual(403, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual(Codes.FORBIDDEN, channel.json_body["errcode"])
@@ -1225,7 +1192,6 @@ class JoinAliasRoomTestCase(unittest.HomeserverTestCase):
             content=body.encode(encoding="utf_8"),
             access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(400, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual(Codes.MISSING_PARAM, channel.json_body["errcode"])
@@ -1242,7 +1208,6 @@ class JoinAliasRoomTestCase(unittest.HomeserverTestCase):
             content=body.encode(encoding="utf_8"),
             access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(404, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual(Codes.NOT_FOUND, channel.json_body["errcode"])
@@ -1259,7 +1224,6 @@ class JoinAliasRoomTestCase(unittest.HomeserverTestCase):
             content=body.encode(encoding="utf_8"),
             access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(400, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual(
@@ -1280,7 +1244,6 @@ class JoinAliasRoomTestCase(unittest.HomeserverTestCase):
             content=body.encode(encoding="utf_8"),
             access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(404, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual("No known servers", channel.json_body["error"])
@@ -1298,7 +1261,6 @@ class JoinAliasRoomTestCase(unittest.HomeserverTestCase):
             content=body.encode(encoding="utf_8"),
             access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(400, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual(
@@ -1318,7 +1280,6 @@ class JoinAliasRoomTestCase(unittest.HomeserverTestCase):
             content=body.encode(encoding="utf_8"),
             access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual(self.public_room_id, channel.json_body["room_id"])
@@ -1328,7 +1289,6 @@ class JoinAliasRoomTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "GET", "/_matrix/client/r0/joined_rooms", access_token=self.second_tok,
         )
-        self.render(request)
         self.assertEquals(200, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual(self.public_room_id, channel.json_body["joined_rooms"][0])
 
@@ -1349,7 +1309,6 @@ class JoinAliasRoomTestCase(unittest.HomeserverTestCase):
             content=body.encode(encoding="utf_8"),
             access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(403, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual(Codes.FORBIDDEN, channel.json_body["errcode"])
@@ -1377,7 +1336,6 @@ class JoinAliasRoomTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "GET", "/_matrix/client/r0/joined_rooms", access_token=self.admin_user_tok,
         )
-        self.render(request)
         self.assertEquals(200, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual(private_room_id, channel.json_body["joined_rooms"][0])
 
@@ -1392,7 +1350,6 @@ class JoinAliasRoomTestCase(unittest.HomeserverTestCase):
             content=body.encode(encoding="utf_8"),
             access_token=self.admin_user_tok,
         )
-        self.render(request)
         self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual(private_room_id, channel.json_body["room_id"])
 
@@ -1401,7 +1358,6 @@ class JoinAliasRoomTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "GET", "/_matrix/client/r0/joined_rooms", access_token=self.second_tok,
         )
-        self.render(request)
         self.assertEquals(200, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual(private_room_id, channel.json_body["joined_rooms"][0])
 
@@ -1422,7 +1378,6 @@ class JoinAliasRoomTestCase(unittest.HomeserverTestCase):
             content=body.encode(encoding="utf_8"),
             access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual(private_room_id, channel.json_body["room_id"])
@@ -1432,7 +1387,6 @@ class JoinAliasRoomTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "GET", "/_matrix/client/r0/joined_rooms", access_token=self.second_tok,
         )
-        self.render(request)
         self.assertEquals(200, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual(private_room_id, channel.json_body["joined_rooms"][0])
 
diff --git a/tests/rest/admin/test_statistics.py b/tests/rest/admin/test_statistics.py
index 816683a612..907b49f889 100644
--- a/tests/rest/admin/test_statistics.py
+++ b/tests/rest/admin/test_statistics.py
@@ -47,7 +47,6 @@ class UserMediaStatisticsTestCase(unittest.HomeserverTestCase):
         Try to list users without authentication.
         """
         request, channel = self.make_request("GET", self.url, b"{}")
-        self.render(request)
 
         self.assertEqual(401, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual(Codes.MISSING_TOKEN, channel.json_body["errcode"])
@@ -59,7 +58,6 @@ class UserMediaStatisticsTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "GET", self.url, json.dumps({}), access_token=self.other_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(403, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual(Codes.FORBIDDEN, channel.json_body["errcode"])
@@ -72,7 +70,6 @@ class UserMediaStatisticsTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "GET", self.url + "?order_by=bar", access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(400, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual(Codes.INVALID_PARAM, channel.json_body["errcode"])
@@ -81,7 +78,6 @@ class UserMediaStatisticsTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "GET", self.url + "?from=-5", access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(400, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual(Codes.INVALID_PARAM, channel.json_body["errcode"])
@@ -90,7 +86,6 @@ class UserMediaStatisticsTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "GET", self.url + "?limit=-5", access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(400, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual(Codes.INVALID_PARAM, channel.json_body["errcode"])
@@ -99,7 +94,6 @@ class UserMediaStatisticsTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "GET", self.url + "?from_ts=-1234", access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(400, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual(Codes.INVALID_PARAM, channel.json_body["errcode"])
@@ -108,7 +102,6 @@ class UserMediaStatisticsTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "GET", self.url + "?until_ts=-1234", access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(400, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual(Codes.INVALID_PARAM, channel.json_body["errcode"])
@@ -119,7 +112,6 @@ class UserMediaStatisticsTestCase(unittest.HomeserverTestCase):
             self.url + "?from_ts=10&until_ts=5",
             access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(400, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual(Codes.INVALID_PARAM, channel.json_body["errcode"])
@@ -128,7 +120,6 @@ class UserMediaStatisticsTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "GET", self.url + "?search_term=", access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(400, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual(Codes.INVALID_PARAM, channel.json_body["errcode"])
@@ -137,7 +128,6 @@ class UserMediaStatisticsTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "GET", self.url + "?dir=bar", access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(400, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual(Codes.INVALID_PARAM, channel.json_body["errcode"])
@@ -151,7 +141,6 @@ class UserMediaStatisticsTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "GET", self.url + "?limit=5", access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual(channel.json_body["total"], 10)
@@ -168,7 +157,6 @@ class UserMediaStatisticsTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "GET", self.url + "?from=5", access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual(channel.json_body["total"], 20)
@@ -185,7 +173,6 @@ class UserMediaStatisticsTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "GET", self.url + "?from=5&limit=10", access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual(channel.json_body["total"], 20)
@@ -206,7 +193,6 @@ class UserMediaStatisticsTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "GET", self.url + "?limit=20", access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual(channel.json_body["total"], number_users)
@@ -218,7 +204,6 @@ class UserMediaStatisticsTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "GET", self.url + "?limit=21", access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual(channel.json_body["total"], number_users)
@@ -230,7 +215,6 @@ class UserMediaStatisticsTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "GET", self.url + "?limit=19", access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual(channel.json_body["total"], number_users)
@@ -242,7 +226,6 @@ class UserMediaStatisticsTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "GET", self.url + "?from=19", access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual(channel.json_body["total"], number_users)
@@ -258,7 +241,6 @@ class UserMediaStatisticsTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "GET", self.url, access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(200, channel.code, msg=channel.json_body)
         self.assertEqual(0, channel.json_body["total"])
@@ -337,7 +319,6 @@ class UserMediaStatisticsTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "GET", self.url, access_token=self.admin_user_tok,
         )
-        self.render(request)
         self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual(channel.json_body["users"][0]["media_count"], 3)
 
@@ -346,7 +327,6 @@ class UserMediaStatisticsTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "GET", self.url + "?from_ts=%s" % (ts1,), access_token=self.admin_user_tok,
         )
-        self.render(request)
         self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual(channel.json_body["total"], 0)
 
@@ -362,7 +342,6 @@ class UserMediaStatisticsTestCase(unittest.HomeserverTestCase):
             self.url + "?from_ts=%s&until_ts=%s" % (ts1, ts2),
             access_token=self.admin_user_tok,
         )
-        self.render(request)
         self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual(channel.json_body["users"][0]["media_count"], 3)
 
@@ -370,7 +349,6 @@ class UserMediaStatisticsTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "GET", self.url + "?until_ts=%s" % (ts2,), access_token=self.admin_user_tok,
         )
-        self.render(request)
         self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual(channel.json_body["users"][0]["media_count"], 6)
 
@@ -381,7 +359,6 @@ class UserMediaStatisticsTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "GET", self.url, access_token=self.admin_user_tok,
         )
-        self.render(request)
         self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual(channel.json_body["total"], 20)
 
@@ -391,7 +368,6 @@ class UserMediaStatisticsTestCase(unittest.HomeserverTestCase):
             self.url + "?search_term=foo_user_1",
             access_token=self.admin_user_tok,
         )
-        self.render(request)
         self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual(channel.json_body["total"], 11)
 
@@ -401,7 +377,6 @@ class UserMediaStatisticsTestCase(unittest.HomeserverTestCase):
             self.url + "?search_term=bar_user_10",
             access_token=self.admin_user_tok,
         )
-        self.render(request)
         self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual(channel.json_body["users"][0]["displayname"], "bar_user_10")
         self.assertEqual(channel.json_body["total"], 1)
@@ -410,7 +385,6 @@ class UserMediaStatisticsTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "GET", self.url + "?search_term=foobar", access_token=self.admin_user_tok,
         )
-        self.render(request)
         self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual(channel.json_body["total"], 0)
 
@@ -476,7 +450,6 @@ class UserMediaStatisticsTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "GET", url.encode("ascii"), access_token=self.admin_user_tok,
         )
-        self.render(request)
         self.assertEqual(200, channel.code, msg=channel.json_body)
         self.assertEqual(channel.json_body["total"], len(expected_user_list))
 
diff --git a/tests/rest/admin/test_user.py b/tests/rest/admin/test_user.py
index 94cd45066c..cc8a70be04 100644
--- a/tests/rest/admin/test_user.py
+++ b/tests/rest/admin/test_user.py
@@ -71,7 +71,6 @@ class UserRegisterTestCase(unittest.HomeserverTestCase):
         self.hs.config.registration_shared_secret = None
 
         request, channel = self.make_request("POST", self.url, b"{}")
-        self.render(request)
 
         self.assertEqual(400, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual(
@@ -89,7 +88,6 @@ class UserRegisterTestCase(unittest.HomeserverTestCase):
         self.hs.get_secrets = Mock(return_value=secrets)
 
         request, channel = self.make_request("GET", self.url)
-        self.render(request)
 
         self.assertEqual(channel.json_body, {"nonce": "abcd"})
 
@@ -99,7 +97,6 @@ class UserRegisterTestCase(unittest.HomeserverTestCase):
         only last for SALT_TIMEOUT (60s).
         """
         request, channel = self.make_request("GET", self.url)
-        self.render(request)
         nonce = channel.json_body["nonce"]
 
         # 59 seconds
@@ -107,7 +104,6 @@ class UserRegisterTestCase(unittest.HomeserverTestCase):
 
         body = json.dumps({"nonce": nonce})
         request, channel = self.make_request("POST", self.url, body.encode("utf8"))
-        self.render(request)
 
         self.assertEqual(400, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual("username must be specified", channel.json_body["error"])
@@ -116,7 +112,6 @@ class UserRegisterTestCase(unittest.HomeserverTestCase):
         self.reactor.advance(2)
 
         request, channel = self.make_request("POST", self.url, body.encode("utf8"))
-        self.render(request)
 
         self.assertEqual(400, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual("unrecognised nonce", channel.json_body["error"])
@@ -126,7 +121,6 @@ class UserRegisterTestCase(unittest.HomeserverTestCase):
         Only the provided nonce can be used, as it's checked in the MAC.
         """
         request, channel = self.make_request("GET", self.url)
-        self.render(request)
         nonce = channel.json_body["nonce"]
 
         want_mac = hmac.new(key=b"shared", digestmod=hashlib.sha1)
@@ -143,7 +137,6 @@ class UserRegisterTestCase(unittest.HomeserverTestCase):
             }
         )
         request, channel = self.make_request("POST", self.url, body.encode("utf8"))
-        self.render(request)
 
         self.assertEqual(403, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual("HMAC incorrect", channel.json_body["error"])
@@ -154,7 +147,6 @@ class UserRegisterTestCase(unittest.HomeserverTestCase):
         user is registered.
         """
         request, channel = self.make_request("GET", self.url)
-        self.render(request)
         nonce = channel.json_body["nonce"]
 
         want_mac = hmac.new(key=b"shared", digestmod=hashlib.sha1)
@@ -174,7 +166,6 @@ class UserRegisterTestCase(unittest.HomeserverTestCase):
             }
         )
         request, channel = self.make_request("POST", self.url, body.encode("utf8"))
-        self.render(request)
 
         self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual("@bob:test", channel.json_body["user_id"])
@@ -184,7 +175,6 @@ class UserRegisterTestCase(unittest.HomeserverTestCase):
         A valid unrecognised nonce.
         """
         request, channel = self.make_request("GET", self.url)
-        self.render(request)
         nonce = channel.json_body["nonce"]
 
         want_mac = hmac.new(key=b"shared", digestmod=hashlib.sha1)
@@ -201,14 +191,12 @@ class UserRegisterTestCase(unittest.HomeserverTestCase):
             }
         )
         request, channel = self.make_request("POST", self.url, body.encode("utf8"))
-        self.render(request)
 
         self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual("@bob:test", channel.json_body["user_id"])
 
         # Now, try and reuse it
         request, channel = self.make_request("POST", self.url, body.encode("utf8"))
-        self.render(request)
 
         self.assertEqual(400, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual("unrecognised nonce", channel.json_body["error"])
@@ -222,7 +210,6 @@ class UserRegisterTestCase(unittest.HomeserverTestCase):
 
         def nonce():
             request, channel = self.make_request("GET", self.url)
-            self.render(request)
             return channel.json_body["nonce"]
 
         #
@@ -232,7 +219,6 @@ class UserRegisterTestCase(unittest.HomeserverTestCase):
         # Must be present
         body = json.dumps({})
         request, channel = self.make_request("POST", self.url, body.encode("utf8"))
-        self.render(request)
 
         self.assertEqual(400, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual("nonce must be specified", channel.json_body["error"])
@@ -244,7 +230,6 @@ class UserRegisterTestCase(unittest.HomeserverTestCase):
         # Must be present
         body = json.dumps({"nonce": nonce()})
         request, channel = self.make_request("POST", self.url, body.encode("utf8"))
-        self.render(request)
 
         self.assertEqual(400, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual("username must be specified", channel.json_body["error"])
@@ -252,7 +237,6 @@ class UserRegisterTestCase(unittest.HomeserverTestCase):
         # Must be a string
         body = json.dumps({"nonce": nonce(), "username": 1234})
         request, channel = self.make_request("POST", self.url, body.encode("utf8"))
-        self.render(request)
 
         self.assertEqual(400, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual("Invalid username", channel.json_body["error"])
@@ -260,7 +244,6 @@ class UserRegisterTestCase(unittest.HomeserverTestCase):
         # Must not have null bytes
         body = json.dumps({"nonce": nonce(), "username": "abcd\u0000"})
         request, channel = self.make_request("POST", self.url, body.encode("utf8"))
-        self.render(request)
 
         self.assertEqual(400, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual("Invalid username", channel.json_body["error"])
@@ -268,7 +251,6 @@ class UserRegisterTestCase(unittest.HomeserverTestCase):
         # Must not have null bytes
         body = json.dumps({"nonce": nonce(), "username": "a" * 1000})
         request, channel = self.make_request("POST", self.url, body.encode("utf8"))
-        self.render(request)
 
         self.assertEqual(400, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual("Invalid username", channel.json_body["error"])
@@ -280,7 +262,6 @@ class UserRegisterTestCase(unittest.HomeserverTestCase):
         # Must be present
         body = json.dumps({"nonce": nonce(), "username": "a"})
         request, channel = self.make_request("POST", self.url, body.encode("utf8"))
-        self.render(request)
 
         self.assertEqual(400, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual("password must be specified", channel.json_body["error"])
@@ -288,7 +269,6 @@ class UserRegisterTestCase(unittest.HomeserverTestCase):
         # Must be a string
         body = json.dumps({"nonce": nonce(), "username": "a", "password": 1234})
         request, channel = self.make_request("POST", self.url, body.encode("utf8"))
-        self.render(request)
 
         self.assertEqual(400, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual("Invalid password", channel.json_body["error"])
@@ -296,7 +276,6 @@ class UserRegisterTestCase(unittest.HomeserverTestCase):
         # Must not have null bytes
         body = json.dumps({"nonce": nonce(), "username": "a", "password": "abcd\u0000"})
         request, channel = self.make_request("POST", self.url, body.encode("utf8"))
-        self.render(request)
 
         self.assertEqual(400, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual("Invalid password", channel.json_body["error"])
@@ -304,7 +283,6 @@ class UserRegisterTestCase(unittest.HomeserverTestCase):
         # Super long
         body = json.dumps({"nonce": nonce(), "username": "a", "password": "A" * 1000})
         request, channel = self.make_request("POST", self.url, body.encode("utf8"))
-        self.render(request)
 
         self.assertEqual(400, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual("Invalid password", channel.json_body["error"])
@@ -323,7 +301,6 @@ class UserRegisterTestCase(unittest.HomeserverTestCase):
             }
         )
         request, channel = self.make_request("POST", self.url, body.encode("utf8"))
-        self.render(request)
 
         self.assertEqual(400, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual("Invalid user type", channel.json_body["error"])
@@ -335,7 +312,6 @@ class UserRegisterTestCase(unittest.HomeserverTestCase):
 
         # set no displayname
         request, channel = self.make_request("GET", self.url)
-        self.render(request)
         nonce = channel.json_body["nonce"]
 
         want_mac = hmac.new(key=b"shared", digestmod=hashlib.sha1)
@@ -346,19 +322,16 @@ class UserRegisterTestCase(unittest.HomeserverTestCase):
             {"nonce": nonce, "username": "bob1", "password": "abc123", "mac": want_mac}
         )
         request, channel = self.make_request("POST", self.url, body.encode("utf8"))
-        self.render(request)
 
         self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual("@bob1:test", channel.json_body["user_id"])
 
         request, channel = self.make_request("GET", "/profile/@bob1:test/displayname")
-        self.render(request)
         self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual("bob1", channel.json_body["displayname"])
 
         # displayname is None
         request, channel = self.make_request("GET", self.url)
-        self.render(request)
         nonce = channel.json_body["nonce"]
 
         want_mac = hmac.new(key=b"shared", digestmod=hashlib.sha1)
@@ -375,19 +348,16 @@ class UserRegisterTestCase(unittest.HomeserverTestCase):
             }
         )
         request, channel = self.make_request("POST", self.url, body.encode("utf8"))
-        self.render(request)
 
         self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual("@bob2:test", channel.json_body["user_id"])
 
         request, channel = self.make_request("GET", "/profile/@bob2:test/displayname")
-        self.render(request)
         self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual("bob2", channel.json_body["displayname"])
 
         # displayname is empty
         request, channel = self.make_request("GET", self.url)
-        self.render(request)
         nonce = channel.json_body["nonce"]
 
         want_mac = hmac.new(key=b"shared", digestmod=hashlib.sha1)
@@ -404,18 +374,15 @@ class UserRegisterTestCase(unittest.HomeserverTestCase):
             }
         )
         request, channel = self.make_request("POST", self.url, body.encode("utf8"))
-        self.render(request)
 
         self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual("@bob3:test", channel.json_body["user_id"])
 
         request, channel = self.make_request("GET", "/profile/@bob3:test/displayname")
-        self.render(request)
         self.assertEqual(404, int(channel.result["code"]), msg=channel.result["body"])
 
         # set displayname
         request, channel = self.make_request("GET", self.url)
-        self.render(request)
         nonce = channel.json_body["nonce"]
 
         want_mac = hmac.new(key=b"shared", digestmod=hashlib.sha1)
@@ -432,13 +399,11 @@ class UserRegisterTestCase(unittest.HomeserverTestCase):
             }
         )
         request, channel = self.make_request("POST", self.url, body.encode("utf8"))
-        self.render(request)
 
         self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual("@bob4:test", channel.json_body["user_id"])
 
         request, channel = self.make_request("GET", "/profile/@bob4:test/displayname")
-        self.render(request)
         self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual("Bob's Name", channel.json_body["displayname"])
 
@@ -465,7 +430,6 @@ class UserRegisterTestCase(unittest.HomeserverTestCase):
 
         # Register new user with admin API
         request, channel = self.make_request("GET", self.url)
-        self.render(request)
         nonce = channel.json_body["nonce"]
 
         want_mac = hmac.new(key=b"shared", digestmod=hashlib.sha1)
@@ -485,7 +449,6 @@ class UserRegisterTestCase(unittest.HomeserverTestCase):
             }
         )
         request, channel = self.make_request("POST", self.url, body.encode("utf8"))
-        self.render(request)
 
         self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual("@bob:test", channel.json_body["user_id"])
@@ -511,7 +474,6 @@ class UsersListTestCase(unittest.HomeserverTestCase):
         Try to list users without authentication.
         """
         request, channel = self.make_request("GET", self.url, b"{}")
-        self.render(request)
 
         self.assertEqual(401, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual("M_MISSING_TOKEN", channel.json_body["errcode"])
@@ -526,7 +488,6 @@ class UsersListTestCase(unittest.HomeserverTestCase):
             b"{}",
             access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual(3, len(channel.json_body["users"]))
@@ -562,7 +523,6 @@ class UserRestTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "GET", url, access_token=self.other_user_token,
         )
-        self.render(request)
 
         self.assertEqual(403, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual("You are not a server admin", channel.json_body["error"])
@@ -570,7 +530,6 @@ class UserRestTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "PUT", url, access_token=self.other_user_token, content=b"{}",
         )
-        self.render(request)
 
         self.assertEqual(403, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual("You are not a server admin", channel.json_body["error"])
@@ -585,7 +544,6 @@ class UserRestTestCase(unittest.HomeserverTestCase):
             "/_synapse/admin/v2/users/@unknown_person:test",
             access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(404, channel.code, msg=channel.json_body)
         self.assertEqual("M_NOT_FOUND", channel.json_body["errcode"])
@@ -613,7 +571,6 @@ class UserRestTestCase(unittest.HomeserverTestCase):
             access_token=self.admin_user_tok,
             content=body.encode(encoding="utf_8"),
         )
-        self.render(request)
 
         self.assertEqual(201, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual("@bob:test", channel.json_body["name"])
@@ -626,7 +583,6 @@ class UserRestTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "GET", url, access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual("@bob:test", channel.json_body["name"])
@@ -659,7 +615,6 @@ class UserRestTestCase(unittest.HomeserverTestCase):
             access_token=self.admin_user_tok,
             content=body.encode(encoding="utf_8"),
         )
-        self.render(request)
 
         self.assertEqual(201, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual("@bob:test", channel.json_body["name"])
@@ -672,7 +627,6 @@ class UserRestTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "GET", url, access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual("@bob:test", channel.json_body["name"])
@@ -700,7 +654,6 @@ class UserRestTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "GET", "/sync", access_token=self.admin_user_tok
         )
-        self.render(request)
 
         if channel.code != 200:
             raise HttpResponseException(
@@ -729,7 +682,6 @@ class UserRestTestCase(unittest.HomeserverTestCase):
             access_token=self.admin_user_tok,
             content=body.encode(encoding="utf_8"),
         )
-        self.render(request)
 
         self.assertEqual(201, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual("@bob:test", channel.json_body["name"])
@@ -769,7 +721,6 @@ class UserRestTestCase(unittest.HomeserverTestCase):
             access_token=self.admin_user_tok,
             content=body.encode(encoding="utf_8"),
         )
-        self.render(request)
 
         # Admin user is not blocked by mau anymore
         self.assertEqual(201, int(channel.result["code"]), msg=channel.result["body"])
@@ -807,7 +758,6 @@ class UserRestTestCase(unittest.HomeserverTestCase):
             access_token=self.admin_user_tok,
             content=body.encode(encoding="utf_8"),
         )
-        self.render(request)
 
         self.assertEqual(201, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual("@bob:test", channel.json_body["name"])
@@ -852,7 +802,6 @@ class UserRestTestCase(unittest.HomeserverTestCase):
             access_token=self.admin_user_tok,
             content=body.encode(encoding="utf_8"),
         )
-        self.render(request)
 
         self.assertEqual(201, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual("@bob:test", channel.json_body["name"])
@@ -879,7 +828,6 @@ class UserRestTestCase(unittest.HomeserverTestCase):
             access_token=self.admin_user_tok,
             content=body.encode(encoding="utf_8"),
         )
-        self.render(request)
 
         self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"])
 
@@ -897,7 +845,6 @@ class UserRestTestCase(unittest.HomeserverTestCase):
             access_token=self.admin_user_tok,
             content=body.encode(encoding="utf_8"),
         )
-        self.render(request)
 
         self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual("@user:test", channel.json_body["name"])
@@ -907,7 +854,6 @@ class UserRestTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "GET", self.url_other_user, access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual("@user:test", channel.json_body["name"])
@@ -929,7 +875,6 @@ class UserRestTestCase(unittest.HomeserverTestCase):
             access_token=self.admin_user_tok,
             content=body.encode(encoding="utf_8"),
         )
-        self.render(request)
 
         self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual("@user:test", channel.json_body["name"])
@@ -940,7 +885,6 @@ class UserRestTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "GET", self.url_other_user, access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual("@user:test", channel.json_body["name"])
@@ -961,7 +905,6 @@ class UserRestTestCase(unittest.HomeserverTestCase):
             access_token=self.admin_user_tok,
             content=body.encode(encoding="utf_8"),
         )
-        self.render(request)
 
         self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual("@user:test", channel.json_body["name"])
@@ -972,7 +915,6 @@ class UserRestTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "GET", self.url_other_user, access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual("@user:test", channel.json_body["name"])
@@ -990,7 +932,6 @@ class UserRestTestCase(unittest.HomeserverTestCase):
             access_token=self.admin_user_tok,
             content=json.dumps({"deactivated": True}).encode(encoding="utf_8"),
         )
-        self.render(request)
         self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"])
         self._is_erased("@user:test", False)
         d = self.store.mark_user_erased("@user:test")
@@ -1004,7 +945,6 @@ class UserRestTestCase(unittest.HomeserverTestCase):
             access_token=self.admin_user_tok,
             content=json.dumps({"deactivated": False}).encode(encoding="utf_8"),
         )
-        self.render(request)
         self.assertEqual(400, int(channel.result["code"]), msg=channel.result["body"])
 
         # Reactivate the user.
@@ -1016,14 +956,12 @@ class UserRestTestCase(unittest.HomeserverTestCase):
                 encoding="utf_8"
             ),
         )
-        self.render(request)
         self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"])
 
         # Get user
         request, channel = self.make_request(
             "GET", self.url_other_user, access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual("@user:test", channel.json_body["name"])
@@ -1044,7 +982,6 @@ class UserRestTestCase(unittest.HomeserverTestCase):
             access_token=self.admin_user_tok,
             content=body.encode(encoding="utf_8"),
         )
-        self.render(request)
 
         self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual("@user:test", channel.json_body["name"])
@@ -1054,7 +991,6 @@ class UserRestTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "GET", self.url_other_user, access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual("@user:test", channel.json_body["name"])
@@ -1076,7 +1012,6 @@ class UserRestTestCase(unittest.HomeserverTestCase):
             access_token=self.admin_user_tok,
             content=body.encode(encoding="utf_8"),
         )
-        self.render(request)
 
         self.assertEqual(201, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual("@bob:test", channel.json_body["name"])
@@ -1086,7 +1021,6 @@ class UserRestTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "GET", url, access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual("@bob:test", channel.json_body["name"])
@@ -1102,7 +1036,6 @@ class UserRestTestCase(unittest.HomeserverTestCase):
             access_token=self.admin_user_tok,
             content=body.encode(encoding="utf_8"),
         )
-        self.render(request)
 
         self.assertEqual(400, int(channel.result["code"]), msg=channel.result["body"])
 
@@ -1110,7 +1043,6 @@ class UserRestTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "GET", url, access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual("@bob:test", channel.json_body["name"])
@@ -1153,7 +1085,6 @@ class UserMembershipRestTestCase(unittest.HomeserverTestCase):
         Try to list rooms of an user without authentication.
         """
         request, channel = self.make_request("GET", self.url, b"{}")
-        self.render(request)
 
         self.assertEqual(401, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual(Codes.MISSING_TOKEN, channel.json_body["errcode"])
@@ -1167,7 +1098,6 @@ class UserMembershipRestTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "GET", self.url, access_token=other_user_token,
         )
-        self.render(request)
 
         self.assertEqual(403, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual(Codes.FORBIDDEN, channel.json_body["errcode"])
@@ -1180,7 +1110,6 @@ class UserMembershipRestTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "GET", url, access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(404, channel.code, msg=channel.json_body)
         self.assertEqual(Codes.NOT_FOUND, channel.json_body["errcode"])
@@ -1194,7 +1123,6 @@ class UserMembershipRestTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "GET", url, access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(400, channel.code, msg=channel.json_body)
         self.assertEqual("Can only lookup local users", channel.json_body["error"])
@@ -1208,7 +1136,6 @@ class UserMembershipRestTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "GET", self.url, access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(200, channel.code, msg=channel.json_body)
         self.assertEqual(0, channel.json_body["total"])
@@ -1228,7 +1155,6 @@ class UserMembershipRestTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "GET", self.url, access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(200, channel.code, msg=channel.json_body)
         self.assertEqual(number_rooms, channel.json_body["total"])
@@ -1258,7 +1184,6 @@ class PushersRestTestCase(unittest.HomeserverTestCase):
         Try to list pushers of an user without authentication.
         """
         request, channel = self.make_request("GET", self.url, b"{}")
-        self.render(request)
 
         self.assertEqual(401, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual(Codes.MISSING_TOKEN, channel.json_body["errcode"])
@@ -1272,7 +1197,6 @@ class PushersRestTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "GET", self.url, access_token=other_user_token,
         )
-        self.render(request)
 
         self.assertEqual(403, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual(Codes.FORBIDDEN, channel.json_body["errcode"])
@@ -1285,7 +1209,6 @@ class PushersRestTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "GET", url, access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(404, channel.code, msg=channel.json_body)
         self.assertEqual(Codes.NOT_FOUND, channel.json_body["errcode"])
@@ -1299,7 +1222,6 @@ class PushersRestTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "GET", url, access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(400, channel.code, msg=channel.json_body)
         self.assertEqual("Can only lookup local users", channel.json_body["error"])
@@ -1313,7 +1235,6 @@ class PushersRestTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "GET", self.url, access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(200, channel.code, msg=channel.json_body)
         self.assertEqual(0, channel.json_body["total"])
@@ -1343,7 +1264,6 @@ class PushersRestTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "GET", self.url, access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(200, channel.code, msg=channel.json_body)
         self.assertEqual(1, channel.json_body["total"])
@@ -1383,7 +1303,6 @@ class UserMediaRestTestCase(unittest.HomeserverTestCase):
         Try to list media of an user without authentication.
         """
         request, channel = self.make_request("GET", self.url, b"{}")
-        self.render(request)
 
         self.assertEqual(401, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual(Codes.MISSING_TOKEN, channel.json_body["errcode"])
@@ -1397,7 +1316,6 @@ class UserMediaRestTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "GET", self.url, access_token=other_user_token,
         )
-        self.render(request)
 
         self.assertEqual(403, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual(Codes.FORBIDDEN, channel.json_body["errcode"])
@@ -1410,7 +1328,6 @@ class UserMediaRestTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "GET", url, access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(404, channel.code, msg=channel.json_body)
         self.assertEqual(Codes.NOT_FOUND, channel.json_body["errcode"])
@@ -1424,7 +1341,6 @@ class UserMediaRestTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "GET", url, access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(400, channel.code, msg=channel.json_body)
         self.assertEqual("Can only lookup local users", channel.json_body["error"])
@@ -1441,7 +1357,6 @@ class UserMediaRestTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "GET", self.url + "?limit=5", access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual(channel.json_body["total"], number_media)
@@ -1461,7 +1376,6 @@ class UserMediaRestTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "GET", self.url + "?from=5", access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual(channel.json_body["total"], number_media)
@@ -1481,7 +1395,6 @@ class UserMediaRestTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "GET", self.url + "?from=5&limit=10", access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual(channel.json_body["total"], number_media)
@@ -1497,7 +1410,6 @@ class UserMediaRestTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "GET", self.url + "?limit=-5", access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(400, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual(Codes.INVALID_PARAM, channel.json_body["errcode"])
@@ -1510,7 +1422,6 @@ class UserMediaRestTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "GET", self.url + "?from=-5", access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(400, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual(Codes.INVALID_PARAM, channel.json_body["errcode"])
@@ -1529,7 +1440,6 @@ class UserMediaRestTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "GET", self.url + "?limit=20", access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual(channel.json_body["total"], number_media)
@@ -1541,7 +1451,6 @@ class UserMediaRestTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "GET", self.url + "?limit=21", access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual(channel.json_body["total"], number_media)
@@ -1553,7 +1462,6 @@ class UserMediaRestTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "GET", self.url + "?limit=19", access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual(channel.json_body["total"], number_media)
@@ -1566,7 +1474,6 @@ class UserMediaRestTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "GET", self.url + "?from=19", access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual(channel.json_body["total"], number_media)
@@ -1582,7 +1489,6 @@ class UserMediaRestTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "GET", self.url, access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(200, channel.code, msg=channel.json_body)
         self.assertEqual(0, channel.json_body["total"])
@@ -1600,7 +1506,6 @@ class UserMediaRestTestCase(unittest.HomeserverTestCase):
         request, channel = self.make_request(
             "GET", self.url, access_token=self.admin_user_tok,
         )
-        self.render(request)
 
         self.assertEqual(200, channel.code, msg=channel.json_body)
         self.assertEqual(number_media, channel.json_body["total"])