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-rw-r--r--changelog.d/11048.misc1
-rw-r--r--tests/rest/admin/test_user.py401
2 files changed, 147 insertions, 255 deletions
diff --git a/changelog.d/11048.misc b/changelog.d/11048.misc
new file mode 100644
index 0000000000..22d3c956f5
--- /dev/null
+++ b/changelog.d/11048.misc
@@ -0,0 +1 @@
+Simplify the user admin API tests.
\ No newline at end of file
diff --git a/tests/rest/admin/test_user.py b/tests/rest/admin/test_user.py
index 6ed9e42173..c9e2754b09 100644
--- a/tests/rest/admin/test_user.py
+++ b/tests/rest/admin/test_user.py
@@ -14,14 +14,13 @@
 
 import hashlib
 import hmac
-import json
 import os
 import urllib.parse
 from binascii import unhexlify
 from typing import List, Optional
 from unittest.mock import Mock, patch
 
-from parameterized import parameterized
+from parameterized import parameterized, parameterized_class
 
 import synapse.rest.admin
 from synapse.api.constants import UserTypes
@@ -104,8 +103,8 @@ class UserRegisterTestCase(unittest.HomeserverTestCase):
         # 59 seconds
         self.reactor.advance(59)
 
-        body = json.dumps({"nonce": nonce})
-        channel = self.make_request("POST", self.url, body.encode("utf8"))
+        body = {"nonce": nonce}
+        channel = self.make_request("POST", self.url, body)
 
         self.assertEqual(400, channel.code, msg=channel.json_body)
         self.assertEqual("username must be specified", channel.json_body["error"])
@@ -113,7 +112,7 @@ class UserRegisterTestCase(unittest.HomeserverTestCase):
         # 61 seconds
         self.reactor.advance(2)
 
-        channel = self.make_request("POST", self.url, body.encode("utf8"))
+        channel = self.make_request("POST", self.url, body)
 
         self.assertEqual(400, channel.code, msg=channel.json_body)
         self.assertEqual("unrecognised nonce", channel.json_body["error"])
@@ -129,18 +128,16 @@ class UserRegisterTestCase(unittest.HomeserverTestCase):
         want_mac.update(b"notthenonce\x00bob\x00abc123\x00admin")
         want_mac = want_mac.hexdigest()
 
-        body = json.dumps(
-            {
-                "nonce": nonce,
-                "username": "bob",
-                "password": "abc123",
-                "admin": True,
-                "mac": want_mac,
-            }
-        )
-        channel = self.make_request("POST", self.url, body.encode("utf8"))
+        body = {
+            "nonce": nonce,
+            "username": "bob",
+            "password": "abc123",
+            "admin": True,
+            "mac": want_mac,
+        }
+        channel = self.make_request("POST", self.url, body)
 
-        self.assertEqual(403, int(channel.result["code"]), msg=channel.result["body"])
+        self.assertEqual(403, channel.code, msg=channel.json_body)
         self.assertEqual("HMAC incorrect", channel.json_body["error"])
 
     def test_register_correct_nonce(self):
@@ -157,17 +154,15 @@ class UserRegisterTestCase(unittest.HomeserverTestCase):
         )
         want_mac = want_mac.hexdigest()
 
-        body = json.dumps(
-            {
-                "nonce": nonce,
-                "username": "bob",
-                "password": "abc123",
-                "admin": True,
-                "user_type": UserTypes.SUPPORT,
-                "mac": want_mac,
-            }
-        )
-        channel = self.make_request("POST", self.url, body.encode("utf8"))
+        body = {
+            "nonce": nonce,
+            "username": "bob",
+            "password": "abc123",
+            "admin": True,
+            "user_type": UserTypes.SUPPORT,
+            "mac": want_mac,
+        }
+        channel = self.make_request("POST", self.url, body)
 
         self.assertEqual(200, channel.code, msg=channel.json_body)
         self.assertEqual("@bob:test", channel.json_body["user_id"])
@@ -183,22 +178,20 @@ class UserRegisterTestCase(unittest.HomeserverTestCase):
         want_mac.update(nonce.encode("ascii") + b"\x00bob\x00abc123\x00admin")
         want_mac = want_mac.hexdigest()
 
-        body = json.dumps(
-            {
-                "nonce": nonce,
-                "username": "bob",
-                "password": "abc123",
-                "admin": True,
-                "mac": want_mac,
-            }
-        )
-        channel = self.make_request("POST", self.url, body.encode("utf8"))
+        body = {
+            "nonce": nonce,
+            "username": "bob",
+            "password": "abc123",
+            "admin": True,
+            "mac": want_mac,
+        }
+        channel = self.make_request("POST", self.url, body)
 
         self.assertEqual(200, channel.code, msg=channel.json_body)
         self.assertEqual("@bob:test", channel.json_body["user_id"])
 
         # Now, try and reuse it
-        channel = self.make_request("POST", self.url, body.encode("utf8"))
+        channel = self.make_request("POST", self.url, body)
 
         self.assertEqual(400, channel.code, msg=channel.json_body)
         self.assertEqual("unrecognised nonce", channel.json_body["error"])
@@ -218,9 +211,8 @@ class UserRegisterTestCase(unittest.HomeserverTestCase):
         # Nonce check
         #
 
-        # Must be present
-        body = json.dumps({})
-        channel = self.make_request("POST", self.url, body.encode("utf8"))
+        # Must be an empty body present
+        channel = self.make_request("POST", self.url, {})
 
         self.assertEqual(400, channel.code, msg=channel.json_body)
         self.assertEqual("nonce must be specified", channel.json_body["error"])
@@ -230,29 +222,28 @@ class UserRegisterTestCase(unittest.HomeserverTestCase):
         #
 
         # Must be present
-        body = json.dumps({"nonce": nonce()})
-        channel = self.make_request("POST", self.url, body.encode("utf8"))
+        channel = self.make_request("POST", self.url, {"nonce": nonce()})
 
         self.assertEqual(400, channel.code, msg=channel.json_body)
         self.assertEqual("username must be specified", channel.json_body["error"])
 
         # Must be a string
-        body = json.dumps({"nonce": nonce(), "username": 1234})
-        channel = self.make_request("POST", self.url, body.encode("utf8"))
+        body = {"nonce": nonce(), "username": 1234}
+        channel = self.make_request("POST", self.url, body)
 
         self.assertEqual(400, channel.code, msg=channel.json_body)
         self.assertEqual("Invalid username", channel.json_body["error"])
 
         # Must not have null bytes
-        body = json.dumps({"nonce": nonce(), "username": "abcd\u0000"})
-        channel = self.make_request("POST", self.url, body.encode("utf8"))
+        body = {"nonce": nonce(), "username": "abcd\u0000"}
+        channel = self.make_request("POST", self.url, body)
 
         self.assertEqual(400, channel.code, msg=channel.json_body)
         self.assertEqual("Invalid username", channel.json_body["error"])
 
         # Must not have null bytes
-        body = json.dumps({"nonce": nonce(), "username": "a" * 1000})
-        channel = self.make_request("POST", self.url, body.encode("utf8"))
+        body = {"nonce": nonce(), "username": "a" * 1000}
+        channel = self.make_request("POST", self.url, body)
 
         self.assertEqual(400, channel.code, msg=channel.json_body)
         self.assertEqual("Invalid username", channel.json_body["error"])
@@ -262,29 +253,29 @@ class UserRegisterTestCase(unittest.HomeserverTestCase):
         #
 
         # Must be present
-        body = json.dumps({"nonce": nonce(), "username": "a"})
-        channel = self.make_request("POST", self.url, body.encode("utf8"))
+        body = {"nonce": nonce(), "username": "a"}
+        channel = self.make_request("POST", self.url, body)
 
         self.assertEqual(400, channel.code, msg=channel.json_body)
         self.assertEqual("password must be specified", channel.json_body["error"])
 
         # Must be a string
-        body = json.dumps({"nonce": nonce(), "username": "a", "password": 1234})
-        channel = self.make_request("POST", self.url, body.encode("utf8"))
+        body = {"nonce": nonce(), "username": "a", "password": 1234}
+        channel = self.make_request("POST", self.url, body)
 
         self.assertEqual(400, channel.code, msg=channel.json_body)
         self.assertEqual("Invalid password", channel.json_body["error"])
 
         # Must not have null bytes
-        body = json.dumps({"nonce": nonce(), "username": "a", "password": "abcd\u0000"})
-        channel = self.make_request("POST", self.url, body.encode("utf8"))
+        body = {"nonce": nonce(), "username": "a", "password": "abcd\u0000"}
+        channel = self.make_request("POST", self.url, body)
 
         self.assertEqual(400, channel.code, msg=channel.json_body)
         self.assertEqual("Invalid password", channel.json_body["error"])
 
         # Super long
-        body = json.dumps({"nonce": nonce(), "username": "a", "password": "A" * 1000})
-        channel = self.make_request("POST", self.url, body.encode("utf8"))
+        body = {"nonce": nonce(), "username": "a", "password": "A" * 1000}
+        channel = self.make_request("POST", self.url, body)
 
         self.assertEqual(400, channel.code, msg=channel.json_body)
         self.assertEqual("Invalid password", channel.json_body["error"])
@@ -294,15 +285,13 @@ class UserRegisterTestCase(unittest.HomeserverTestCase):
         #
 
         # Invalid user_type
-        body = json.dumps(
-            {
-                "nonce": nonce(),
-                "username": "a",
-                "password": "1234",
-                "user_type": "invalid",
-            }
-        )
-        channel = self.make_request("POST", self.url, body.encode("utf8"))
+        body = {
+            "nonce": nonce(),
+            "username": "a",
+            "password": "1234",
+            "user_type": "invalid",
+        }
+        channel = self.make_request("POST", self.url, body)
 
         self.assertEqual(400, channel.code, msg=channel.json_body)
         self.assertEqual("Invalid user type", channel.json_body["error"])
@@ -320,10 +309,14 @@ class UserRegisterTestCase(unittest.HomeserverTestCase):
         want_mac.update(nonce.encode("ascii") + b"\x00bob1\x00abc123\x00notadmin")
         want_mac = want_mac.hexdigest()
 
-        body = json.dumps(
-            {"nonce": nonce, "username": "bob1", "password": "abc123", "mac": want_mac}
-        )
-        channel = self.make_request("POST", self.url, body.encode("utf8"))
+        body = {
+            "nonce": nonce,
+            "username": "bob1",
+            "password": "abc123",
+            "mac": want_mac,
+        }
+
+        channel = self.make_request("POST", self.url, body)
 
         self.assertEqual(200, channel.code, msg=channel.json_body)
         self.assertEqual("@bob1:test", channel.json_body["user_id"])
@@ -340,16 +333,14 @@ class UserRegisterTestCase(unittest.HomeserverTestCase):
         want_mac.update(nonce.encode("ascii") + b"\x00bob2\x00abc123\x00notadmin")
         want_mac = want_mac.hexdigest()
 
-        body = json.dumps(
-            {
-                "nonce": nonce,
-                "username": "bob2",
-                "displayname": None,
-                "password": "abc123",
-                "mac": want_mac,
-            }
-        )
-        channel = self.make_request("POST", self.url, body.encode("utf8"))
+        body = {
+            "nonce": nonce,
+            "username": "bob2",
+            "displayname": None,
+            "password": "abc123",
+            "mac": want_mac,
+        }
+        channel = self.make_request("POST", self.url, body)
 
         self.assertEqual(200, channel.code, msg=channel.json_body)
         self.assertEqual("@bob2:test", channel.json_body["user_id"])
@@ -366,22 +357,20 @@ class UserRegisterTestCase(unittest.HomeserverTestCase):
         want_mac.update(nonce.encode("ascii") + b"\x00bob3\x00abc123\x00notadmin")
         want_mac = want_mac.hexdigest()
 
-        body = json.dumps(
-            {
-                "nonce": nonce,
-                "username": "bob3",
-                "displayname": "",
-                "password": "abc123",
-                "mac": want_mac,
-            }
-        )
-        channel = self.make_request("POST", self.url, body.encode("utf8"))
+        body = {
+            "nonce": nonce,
+            "username": "bob3",
+            "displayname": "",
+            "password": "abc123",
+            "mac": want_mac,
+        }
+        channel = self.make_request("POST", self.url, body)
 
         self.assertEqual(200, channel.code, msg=channel.json_body)
         self.assertEqual("@bob3:test", channel.json_body["user_id"])
 
         channel = self.make_request("GET", "/profile/@bob3:test/displayname")
-        self.assertEqual(404, int(channel.result["code"]), msg=channel.result["body"])
+        self.assertEqual(404, channel.code, msg=channel.json_body)
 
         # set displayname
         channel = self.make_request("GET", self.url)
@@ -391,16 +380,14 @@ class UserRegisterTestCase(unittest.HomeserverTestCase):
         want_mac.update(nonce.encode("ascii") + b"\x00bob4\x00abc123\x00notadmin")
         want_mac = want_mac.hexdigest()
 
-        body = json.dumps(
-            {
-                "nonce": nonce,
-                "username": "bob4",
-                "displayname": "Bob's Name",
-                "password": "abc123",
-                "mac": want_mac,
-            }
-        )
-        channel = self.make_request("POST", self.url, body.encode("utf8"))
+        body = {
+            "nonce": nonce,
+            "username": "bob4",
+            "displayname": "Bob's Name",
+            "password": "abc123",
+            "mac": want_mac,
+        }
+        channel = self.make_request("POST", self.url, body)
 
         self.assertEqual(200, channel.code, msg=channel.json_body)
         self.assertEqual("@bob4:test", channel.json_body["user_id"])
@@ -440,17 +427,15 @@ class UserRegisterTestCase(unittest.HomeserverTestCase):
         )
         want_mac = want_mac.hexdigest()
 
-        body = json.dumps(
-            {
-                "nonce": nonce,
-                "username": "bob",
-                "password": "abc123",
-                "admin": True,
-                "user_type": UserTypes.SUPPORT,
-                "mac": want_mac,
-            }
-        )
-        channel = self.make_request("POST", self.url, body.encode("utf8"))
+        body = {
+            "nonce": nonce,
+            "username": "bob",
+            "password": "abc123",
+            "admin": True,
+            "user_type": UserTypes.SUPPORT,
+            "mac": want_mac,
+        }
+        channel = self.make_request("POST", self.url, body)
 
         self.assertEqual(200, channel.code, msg=channel.json_body)
         self.assertEqual("@bob:test", channel.json_body["user_id"])
@@ -993,12 +978,11 @@ class DeactivateAccountTestCase(unittest.HomeserverTestCase):
         """
         If parameter `erase` is not boolean, return an error
         """
-        body = json.dumps({"erase": "False"})
 
         channel = self.make_request(
             "POST",
             self.url,
-            content=body.encode(encoding="utf_8"),
+            content={"erase": "False"},
             access_token=self.admin_user_tok,
         )
 
@@ -2201,7 +2185,7 @@ class UserMembershipRestTestCase(unittest.HomeserverTestCase):
         """
         channel = self.make_request("GET", self.url, b"{}")
 
-        self.assertEqual(401, int(channel.result["code"]), msg=channel.result["body"])
+        self.assertEqual(401, channel.code, msg=channel.json_body)
         self.assertEqual(Codes.MISSING_TOKEN, channel.json_body["errcode"])
 
     def test_requester_is_no_admin(self):
@@ -2216,7 +2200,7 @@ class UserMembershipRestTestCase(unittest.HomeserverTestCase):
             access_token=other_user_token,
         )
 
-        self.assertEqual(403, int(channel.result["code"]), msg=channel.result["body"])
+        self.assertEqual(403, channel.code, msg=channel.json_body)
         self.assertEqual(Codes.FORBIDDEN, channel.json_body["errcode"])
 
     def test_user_does_not_exist(self):
@@ -2359,7 +2343,7 @@ class PushersRestTestCase(unittest.HomeserverTestCase):
         """
         channel = self.make_request("GET", self.url, b"{}")
 
-        self.assertEqual(401, int(channel.result["code"]), msg=channel.result["body"])
+        self.assertEqual(401, channel.code, msg=channel.json_body)
         self.assertEqual(Codes.MISSING_TOKEN, channel.json_body["errcode"])
 
     def test_requester_is_no_admin(self):
@@ -2374,7 +2358,7 @@ class PushersRestTestCase(unittest.HomeserverTestCase):
             access_token=other_user_token,
         )
 
-        self.assertEqual(403, int(channel.result["code"]), msg=channel.result["body"])
+        self.assertEqual(403, channel.code, msg=channel.json_body)
         self.assertEqual(Codes.FORBIDDEN, channel.json_body["errcode"])
 
     def test_user_does_not_exist(self):
@@ -3073,7 +3057,7 @@ class UserTokenRestTestCase(unittest.HomeserverTestCase):
         """Try to login as a user without authentication."""
         channel = self.make_request("POST", self.url, b"{}")
 
-        self.assertEqual(401, int(channel.result["code"]), msg=channel.result["body"])
+        self.assertEqual(401, channel.code, msg=channel.json_body)
         self.assertEqual(Codes.MISSING_TOKEN, channel.json_body["errcode"])
 
     def test_not_admin(self):
@@ -3082,7 +3066,7 @@ class UserTokenRestTestCase(unittest.HomeserverTestCase):
             "POST", self.url, b"{}", access_token=self.other_user_tok
         )
 
-        self.assertEqual(403, int(channel.result["code"]), msg=channel.result["body"])
+        self.assertEqual(403, channel.code, msg=channel.json_body)
 
     def test_send_event(self):
         """Test that sending event as a user works."""
@@ -3127,7 +3111,7 @@ class UserTokenRestTestCase(unittest.HomeserverTestCase):
 
         # The puppet token should no longer work
         channel = self.make_request("GET", "devices", b"{}", access_token=puppet_token)
-        self.assertEqual(401, int(channel.result["code"]), msg=channel.result["body"])
+        self.assertEqual(401, channel.code, msg=channel.json_body)
 
         # .. but the real user's tokens should still work
         channel = self.make_request(
@@ -3160,7 +3144,7 @@ class UserTokenRestTestCase(unittest.HomeserverTestCase):
         channel = self.make_request(
             "GET", "devices", b"{}", access_token=self.other_user_tok
         )
-        self.assertEqual(401, int(channel.result["code"]), msg=channel.result["body"])
+        self.assertEqual(401, channel.code, msg=channel.json_body)
 
     def test_admin_logout_all(self):
         """Tests that the admin user calling `/logout/all` does expire the
@@ -3181,7 +3165,7 @@ class UserTokenRestTestCase(unittest.HomeserverTestCase):
 
         # The puppet token should no longer work
         channel = self.make_request("GET", "devices", b"{}", access_token=puppet_token)
-        self.assertEqual(401, int(channel.result["code"]), msg=channel.result["body"])
+        self.assertEqual(401, channel.code, msg=channel.json_body)
 
         # .. but the real user's tokens should still work
         channel = self.make_request(
@@ -3242,6 +3226,13 @@ class UserTokenRestTestCase(unittest.HomeserverTestCase):
         self.helper.join(room_id, user=self.other_user, tok=puppet_token)
 
 
+@parameterized_class(
+    ("url_prefix",),
+    [
+        ("/_synapse/admin/v1/whois/%s",),
+        ("/_matrix/client/r0/admin/whois/%s",),
+    ],
+)
 class WhoisRestTestCase(unittest.HomeserverTestCase):
 
     servlets = [
@@ -3254,21 +3245,14 @@ class WhoisRestTestCase(unittest.HomeserverTestCase):
         self.admin_user_tok = self.login("admin", "pass")
 
         self.other_user = self.register_user("user", "pass")
-        self.url1 = "/_synapse/admin/v1/whois/%s" % urllib.parse.quote(self.other_user)
-        self.url2 = "/_matrix/client/r0/admin/whois/%s" % urllib.parse.quote(
-            self.other_user
-        )
+        self.url = self.url_prefix % self.other_user
 
     def test_no_auth(self):
         """
         Try to get information of an user without authentication.
         """
-        channel = self.make_request("GET", self.url1, b"{}")
-        self.assertEqual(401, int(channel.result["code"]), msg=channel.result["body"])
-        self.assertEqual(Codes.MISSING_TOKEN, channel.json_body["errcode"])
-
-        channel = self.make_request("GET", self.url2, b"{}")
-        self.assertEqual(401, int(channel.result["code"]), msg=channel.result["body"])
+        channel = self.make_request("GET", self.url, b"{}")
+        self.assertEqual(401, channel.code, msg=channel.json_body)
         self.assertEqual(Codes.MISSING_TOKEN, channel.json_body["errcode"])
 
     def test_requester_is_not_admin(self):
@@ -3280,38 +3264,21 @@ class WhoisRestTestCase(unittest.HomeserverTestCase):
 
         channel = self.make_request(
             "GET",
-            self.url1,
-            access_token=other_user2_token,
-        )
-        self.assertEqual(403, int(channel.result["code"]), msg=channel.result["body"])
-        self.assertEqual(Codes.FORBIDDEN, channel.json_body["errcode"])
-
-        channel = self.make_request(
-            "GET",
-            self.url2,
+            self.url,
             access_token=other_user2_token,
         )
-        self.assertEqual(403, int(channel.result["code"]), msg=channel.result["body"])
+        self.assertEqual(403, channel.code, msg=channel.json_body)
         self.assertEqual(Codes.FORBIDDEN, channel.json_body["errcode"])
 
     def test_user_is_not_local(self):
         """
         Tests that a lookup for a user that is not a local returns a 400
         """
-        url1 = "/_synapse/admin/v1/whois/@unknown_person:unknown_domain"
-        url2 = "/_matrix/client/r0/admin/whois/@unknown_person:unknown_domain"
-
-        channel = self.make_request(
-            "GET",
-            url1,
-            access_token=self.admin_user_tok,
-        )
-        self.assertEqual(400, channel.code, msg=channel.json_body)
-        self.assertEqual("Can only whois a local user", channel.json_body["error"])
+        url = self.url_prefix % "@unknown_person:unknown_domain"
 
         channel = self.make_request(
             "GET",
-            url2,
+            url,
             access_token=self.admin_user_tok,
         )
         self.assertEqual(400, channel.code, msg=channel.json_body)
@@ -3323,16 +3290,7 @@ class WhoisRestTestCase(unittest.HomeserverTestCase):
         """
         channel = self.make_request(
             "GET",
-            self.url1,
-            access_token=self.admin_user_tok,
-        )
-        self.assertEqual(200, channel.code, msg=channel.json_body)
-        self.assertEqual(self.other_user, channel.json_body["user_id"])
-        self.assertIn("devices", channel.json_body)
-
-        channel = self.make_request(
-            "GET",
-            self.url2,
+            self.url,
             access_token=self.admin_user_tok,
         )
         self.assertEqual(200, channel.code, msg=channel.json_body)
@@ -3347,16 +3305,7 @@ class WhoisRestTestCase(unittest.HomeserverTestCase):
 
         channel = self.make_request(
             "GET",
-            self.url1,
-            access_token=other_user_token,
-        )
-        self.assertEqual(200, channel.code, msg=channel.json_body)
-        self.assertEqual(self.other_user, channel.json_body["user_id"])
-        self.assertIn("devices", channel.json_body)
-
-        channel = self.make_request(
-            "GET",
-            self.url2,
+            self.url,
             access_token=other_user_token,
         )
         self.assertEqual(200, channel.code, msg=channel.json_body)
@@ -3388,7 +3337,7 @@ class ShadowBanRestTestCase(unittest.HomeserverTestCase):
         Try to get information of an user without authentication.
         """
         channel = self.make_request("POST", self.url)
-        self.assertEqual(401, int(channel.result["code"]), msg=channel.result["body"])
+        self.assertEqual(401, channel.code, msg=channel.json_body)
         self.assertEqual(Codes.MISSING_TOKEN, channel.json_body["errcode"])
 
     def test_requester_is_not_admin(self):
@@ -3398,7 +3347,7 @@ class ShadowBanRestTestCase(unittest.HomeserverTestCase):
         other_user_token = self.login("user", "pass")
 
         channel = self.make_request("POST", self.url, access_token=other_user_token)
-        self.assertEqual(403, int(channel.result["code"]), msg=channel.result["body"])
+        self.assertEqual(403, channel.code, msg=channel.json_body)
         self.assertEqual(Codes.FORBIDDEN, channel.json_body["errcode"])
 
     def test_user_is_not_local(self):
@@ -3447,84 +3396,41 @@ class RateLimitTestCase(unittest.HomeserverTestCase):
             % urllib.parse.quote(self.other_user)
         )
 
-    def test_no_auth(self):
+    @parameterized.expand(["GET", "POST", "DELETE"])
+    def test_no_auth(self, method: str):
         """
         Try to get information of a user without authentication.
         """
-        channel = self.make_request("GET", self.url, b"{}")
-
-        self.assertEqual(401, int(channel.result["code"]), msg=channel.result["body"])
-        self.assertEqual(Codes.MISSING_TOKEN, channel.json_body["errcode"])
-
-        channel = self.make_request("POST", self.url, b"{}")
+        channel = self.make_request(method, self.url, b"{}")
 
-        self.assertEqual(401, int(channel.result["code"]), msg=channel.result["body"])
-        self.assertEqual(Codes.MISSING_TOKEN, channel.json_body["errcode"])
-
-        channel = self.make_request("DELETE", self.url, b"{}")
-
-        self.assertEqual(401, int(channel.result["code"]), msg=channel.result["body"])
+        self.assertEqual(401, channel.code, msg=channel.json_body)
         self.assertEqual(Codes.MISSING_TOKEN, channel.json_body["errcode"])
 
-    def test_requester_is_no_admin(self):
+    @parameterized.expand(["GET", "POST", "DELETE"])
+    def test_requester_is_no_admin(self, method: str):
         """
         If the user is not a server admin, an error is returned.
         """
         other_user_token = self.login("user", "pass")
 
         channel = self.make_request(
-            "GET",
-            self.url,
-            access_token=other_user_token,
-        )
-
-        self.assertEqual(403, int(channel.result["code"]), msg=channel.result["body"])
-        self.assertEqual(Codes.FORBIDDEN, channel.json_body["errcode"])
-
-        channel = self.make_request(
-            "POST",
-            self.url,
-            access_token=other_user_token,
-        )
-
-        self.assertEqual(403, int(channel.result["code"]), msg=channel.result["body"])
-        self.assertEqual(Codes.FORBIDDEN, channel.json_body["errcode"])
-
-        channel = self.make_request(
-            "DELETE",
+            method,
             self.url,
             access_token=other_user_token,
         )
 
-        self.assertEqual(403, int(channel.result["code"]), msg=channel.result["body"])
+        self.assertEqual(403, channel.code, msg=channel.json_body)
         self.assertEqual(Codes.FORBIDDEN, channel.json_body["errcode"])
 
-    def test_user_does_not_exist(self):
+    @parameterized.expand(["GET", "POST", "DELETE"])
+    def test_user_does_not_exist(self, method: str):
         """
         Tests that a lookup for a user that does not exist returns a 404
         """
         url = "/_synapse/admin/v1/users/@unknown_person:test/override_ratelimit"
 
         channel = self.make_request(
-            "GET",
-            url,
-            access_token=self.admin_user_tok,
-        )
-
-        self.assertEqual(404, channel.code, msg=channel.json_body)
-        self.assertEqual(Codes.NOT_FOUND, channel.json_body["errcode"])
-
-        channel = self.make_request(
-            "POST",
-            url,
-            access_token=self.admin_user_tok,
-        )
-
-        self.assertEqual(404, channel.code, msg=channel.json_body)
-        self.assertEqual(Codes.NOT_FOUND, channel.json_body["errcode"])
-
-        channel = self.make_request(
-            "DELETE",
+            method,
             url,
             access_token=self.admin_user_tok,
         )
@@ -3532,7 +3438,14 @@ class RateLimitTestCase(unittest.HomeserverTestCase):
         self.assertEqual(404, channel.code, msg=channel.json_body)
         self.assertEqual(Codes.NOT_FOUND, channel.json_body["errcode"])
 
-    def test_user_is_not_local(self):
+    @parameterized.expand(
+        [
+            ("GET", "Can only look up local users"),
+            ("POST", "Only local users can be ratelimited"),
+            ("DELETE", "Only local users can be ratelimited"),
+        ]
+    )
+    def test_user_is_not_local(self, method: str, error_msg: str):
         """
         Tests that a lookup for a user that is not a local returns a 400
         """
@@ -3541,35 +3454,13 @@ class RateLimitTestCase(unittest.HomeserverTestCase):
         )
 
         channel = self.make_request(
-            "GET",
-            url,
-            access_token=self.admin_user_tok,
-        )
-
-        self.assertEqual(400, channel.code, msg=channel.json_body)
-        self.assertEqual("Can only look up local users", channel.json_body["error"])
-
-        channel = self.make_request(
-            "POST",
-            url,
-            access_token=self.admin_user_tok,
-        )
-
-        self.assertEqual(400, channel.code, msg=channel.json_body)
-        self.assertEqual(
-            "Only local users can be ratelimited", channel.json_body["error"]
-        )
-
-        channel = self.make_request(
-            "DELETE",
+            method,
             url,
             access_token=self.admin_user_tok,
         )
 
         self.assertEqual(400, channel.code, msg=channel.json_body)
-        self.assertEqual(
-            "Only local users can be ratelimited", channel.json_body["error"]
-        )
+        self.assertEqual(error_msg, channel.json_body["error"])
 
     def test_invalid_parameter(self):
         """