Misc typing fixes for tests, part 2 of N (#11330)

tests/unittest.py

@@ -44,6 +44,7 @@ from twisted.python.threadpool import ThreadPool
 from twisted.test.proto_helpers import MemoryReactor
 from twisted.trial import unittest
 from twisted.web.resource import Resource
+from twisted.web.server import Request
 
 from synapse import events
 from synapse.api.constants import EventTypes, Membership
@@ -95,16 +96,13 @@ def around(target):
     return _around
 
 
-T = TypeVar("T")
-
-
 class TestCase(unittest.TestCase):
     """A subclass of twisted.trial's TestCase which looks for 'loglevel'
     attributes on both itself and its individual test methods, to override the
     root logger's logging level while that test (case|method) runs."""
 
-    def __init__(self, methodName, *args, **kwargs):
-        super().__init__(methodName, *args, **kwargs)
+    def __init__(self, methodName: str):
+        super().__init__(methodName)
 
         method = getattr(self, methodName)
 
@@ -220,16 +218,16 @@ class HomeserverTestCase(TestCase):
     Attributes:
         servlets: List of servlet registration function.
         user_id (str): The user ID to assume if auth is hijacked.
-        hijack_auth (bool): Whether to hijack auth to return the user specified
+        hijack_auth: Whether to hijack auth to return the user specified
         in user_id.
     """
 
-    hijack_auth = True
-    needs_threadpool = False
+    hijack_auth: ClassVar[bool] = True
+    needs_threadpool: ClassVar[bool] = False
     servlets: ClassVar[List[RegisterServletsFunc]] = []
 
-    def __init__(self, methodName, *args, **kwargs):
-        super().__init__(methodName, *args, **kwargs)
+    def __init__(self, methodName: str):
+        super().__init__(methodName)
 
         # see if we have any additional config for this test
         method = getattr(self, methodName)
@@ -301,9 +299,10 @@ class HomeserverTestCase(TestCase):
                         None,
                     )
 
-                self.hs.get_auth().get_user_by_req = get_user_by_req
-                self.hs.get_auth().get_user_by_access_token = get_user_by_access_token
-                self.hs.get_auth().get_access_token_from_request = Mock(
+                # Type ignore: mypy doesn't like us assigning to methods.
+                self.hs.get_auth().get_user_by_req = get_user_by_req  # type: ignore[assignment]
+                self.hs.get_auth().get_user_by_access_token = get_user_by_access_token  # type: ignore[assignment]
+                self.hs.get_auth().get_access_token_from_request = Mock(  # type: ignore[assignment]
                     return_value="1234"
                 )
 
@@ -417,7 +416,7 @@ class HomeserverTestCase(TestCase):
         path: Union[bytes, str],
         content: Union[bytes, str, JsonDict] = b"",
         access_token: Optional[str] = None,
-        request: Type[T] = SynapseRequest,
+        request: Type[Request] = SynapseRequest,
         shorthand: bool = True,
         federation_auth_origin: Optional[bytes] = None,
         content_is_form: bool = False,
@@ -596,7 +595,7 @@ class HomeserverTestCase(TestCase):
             nonce_str += b"\x00notadmin"
 
         want_mac.update(nonce.encode("ascii") + b"\x00" + nonce_str)
-        want_mac = want_mac.hexdigest()
+        want_mac_digest = want_mac.hexdigest()
 
         body = json.dumps(
             {
@@ -605,7 +604,7 @@ class HomeserverTestCase(TestCase):
                 "displayname": displayname,
                 "password": password,
                 "admin": admin,
-                "mac": want_mac,
+                "mac": want_mac_digest,
                 "inhibit_login": True,
             }
         )