diff --git a/tests/sentry/api/endpoints/test_event_committers.py b/tests/sentry/api/endpoints/test_event_committers.py
index be44f1b454a444..0e5c1b3c4911ff 100644
--- a/tests/sentry/api/endpoints/test_event_committers.py
+++ b/tests/sentry/api/endpoints/test_event_committers.py
@@ -161,6 +161,7 @@ def test_with_commit_context(self):
             project_id=self.project.id,
             event_type=EventType.ERROR,
         )
+        assert event.group is not None
 
         GroupOwner.objects.create(
             group=event.group,
@@ -221,6 +222,7 @@ def test_with_commit_context_pull_request(self):
             project_id=self.project.id,
             event_type=EventType.ERROR,
         )
+        assert event.group is not None
 
         GroupOwner.objects.create(
             group=event.group,
diff --git a/tests/sentry/auth/test_helper.py b/tests/sentry/auth/test_helper.py
index dc456f146859bd..a2c1927e1d57c9 100644
--- a/tests/sentry/auth/test_helper.py
+++ b/tests/sentry/auth/test_helper.py
@@ -1,3 +1,6 @@
+from __future__ import annotations
+
+from typing import TypedDict
 from unittest import mock
 
 from django.contrib.auth.models import AnonymousUser
@@ -33,6 +36,13 @@ def _set_up_request():
     return request
 
 
+class _Identity(TypedDict):
+    id: str
+    email: str
+    name: str
+    data: dict[str, str]
+
+
 class AuthIdentityHandlerTest(TestCase):
     def setUp(self):
         self.provider = "dummy"
@@ -42,7 +52,7 @@ def setUp(self):
             organization_id=self.organization.id, provider=self.provider
         )
         self.email = "test@example.com"
-        self.identity = {
+        self.identity: _Identity = {
             "id": "1234",
             "email": self.email,
             "name": "Morty",
diff --git a/tests/sentry/deletions/test_project.py b/tests/sentry/deletions/test_project.py
index e0825303b50a21..103a7c3180da31 100644
--- a/tests/sentry/deletions/test_project.py
+++ b/tests/sentry/deletions/test_project.py
@@ -39,6 +39,7 @@ class DeleteProjectTest(APITestCase, TransactionTestCase, HybridCloudTestMixin):
     def test_simple(self):
         project = self.create_project(name="test")
         event = self.store_event(data={}, project_id=project.id)
+        assert event.group is not None
         group = event.group
         GroupAssignee.objects.create(group=group, project=project, user_id=self.user.id)
         GroupMeta.objects.create(group=group, key="foo", value="bar")
diff --git a/tests/sentry/event_manager/grouping/test_assign_to_group.py b/tests/sentry/event_manager/grouping/test_assign_to_group.py
index 383f9b246d2d23..58f56e41d2c374 100644
--- a/tests/sentry/event_manager/grouping/test_assign_to_group.py
+++ b/tests/sentry/event_manager/grouping/test_assign_to_group.py
@@ -412,6 +412,7 @@ def test_existing_group_new_hash_exists(
         existing_event = save_event_with_grouping_config(
             event_data, project, NEWSTYLE_CONFIG, LEGACY_CONFIG, True
         )
+        assert existing_event.group_id is not None
         assert (
             GroupHash.objects.filter(
                 project_id=project.id, group_id=existing_event.group_id
@@ -420,6 +421,7 @@ def test_existing_group_new_hash_exists(
         )
     else:
         existing_event = save_event_with_grouping_config(event_data, project, NEWSTYLE_CONFIG)
+        assert existing_event.group_id is not None
         assert (
             GroupHash.objects.filter(
                 project_id=project.id, group_id=existing_event.group_id
diff --git a/tests/sentry/event_manager/test_event_manager.py b/tests/sentry/event_manager/test_event_manager.py
index d1ac8c28fdec38..d027fa31c6091f 100644
--- a/tests/sentry/event_manager/test_event_manager.py
+++ b/tests/sentry/event_manager/test_event_manager.py
@@ -1146,6 +1146,7 @@ def test_release_project_slug_long(self) -> None:
     def test_group_release_no_env(self) -> None:
         project_id = self.project.id
         event = self.make_release_event("1.0", project_id)
+        assert event.group_id is not None
 
         release = Release.objects.get(version="1.0", projects=event.project_id)
 
@@ -1160,6 +1161,7 @@ def test_group_release_with_env(self) -> None:
         manager = EventManager(make_event(release="1.0", environment="prod", event_id="a" * 32))
         manager.normalize()
         event = manager.save(self.project.id)
+        assert event.group_id is not None
 
         release = Release.objects.get(version="1.0", projects=event.project_id)
 
@@ -1172,6 +1174,7 @@ def test_group_release_with_env(self) -> None:
 
         release = Release.objects.get(version="1.0", projects=event.project_id)
 
+        assert event.group_id is not None
         assert GroupRelease.objects.filter(
             release_id=release.id, group_id=event.group_id, environment="staging"
         ).exists()
@@ -1361,6 +1364,7 @@ def save_event() -> Event:
             return manager.save(self.project.id)
 
         event = save_event()
+        assert event.group_id is not None
 
         # Ensure the `GroupEnvironment` record was created.
         instance = GroupEnvironment.objects.get(
diff --git a/tests/sentry/incidents/endpoints/test_organization_combined_rule_index_endpoint.py b/tests/sentry/incidents/endpoints/test_organization_combined_rule_index_endpoint.py
index 6fbeec0f4ef306..77c5c46496d048 100644
--- a/tests/sentry/incidents/endpoints/test_organization_combined_rule_index_endpoint.py
+++ b/tests/sentry/incidents/endpoints/test_organization_combined_rule_index_endpoint.py
@@ -851,7 +851,7 @@ def test_non_existing_owner(self):
     @freeze_time()
     def test_last_triggered(self):
         self.login_as(user=self.user)
-        rule = Rule.objects.filter(project=self.project).first()
+        rule = Rule.objects.filter(project=self.project).get()
         resp = self.get_success_response(self.organization.slug, expand=["lastTriggered"])
         assert resp.data[0]["lastTriggered"] is None
         RuleFireHistory.objects.create(project=self.project, rule=rule, group=self.group)
diff --git a/tests/sentry/integrations/slack/actions/notification/test_slack_notify_service_action.py b/tests/sentry/integrations/slack/actions/notification/test_slack_notify_service_action.py
index eee33155882c39..7fd54f5aed6abb 100644
--- a/tests/sentry/integrations/slack/actions/notification/test_slack_notify_service_action.py
+++ b/tests/sentry/integrations/slack/actions/notification/test_slack_notify_service_action.py
@@ -50,6 +50,7 @@ def setUp(self) -> None:
             },
             project_id=self.project.id,
         )
+        assert self.event.group is not None
         self.rule_fire_history = RuleFireHistory.objects.create(
             project=self.project,
             rule=self.rule,
diff --git a/tests/sentry/models/test_projectownership.py b/tests/sentry/models/test_projectownership.py
index 1279e3c5edcbfd..c83b80ccc7ff12 100644
--- a/tests/sentry/models/test_projectownership.py
+++ b/tests/sentry/models/test_projectownership.py
@@ -303,6 +303,7 @@ def test_handle_auto_assignment_when_only_codeowners_exists(self):
             data=self.python_event_data(),
             project_id=self.project.id,
         )
+        assert self.event.group is not None
 
         GroupOwner.objects.create(
             group=self.event.group,
@@ -352,6 +353,7 @@ def test_handle_auto_assignment_when_only_suspect_commit_exists_multiple_emails(
             data=self.python_event_data(),
             project_id=self.project2.id,
         )
+        assert self.event.group is not None
 
         GroupOwner.objects.create(
             group=self.event.group,
@@ -384,6 +386,7 @@ def test_handle_skip_auto_assignment(self):
             data=self.python_event_data(),
             project_id=self.project.id,
         )
+        assert self.event.group is not None
 
         GroupOwner.objects.create(
             group=self.event.group,
@@ -427,6 +430,7 @@ def test_handle_skip_auto_assignment_same_assignee(self, mock_assign):
             data=self.python_event_data(),
             project_id=self.project.id,
         )
+        assert self.event.group is not None
 
         GroupOwner.objects.create(
             group=self.event.group,
@@ -466,6 +470,7 @@ def test_handle_auto_assignment_when_codeowners_and_issueowners_exists(self):
             data=self.python_event_data(),
             project_id=self.project2.id,
         )
+        assert self.event.group is not None
 
         GroupOwner.objects.create(
             group=self.event.group,
@@ -549,6 +554,7 @@ def test_handle_auto_assignment_when_suspect_committer_and_codeowners_and_issueo
             data=self.python_event_data(),
             project_id=self.project2.id,
         )
+        assert self.event.group is not None
 
         GroupOwner.objects.create(
             group=self.event.group,
diff --git a/tests/sentry/monitors/endpoints/test_organization_monitor_index.py b/tests/sentry/monitors/endpoints/test_organization_monitor_index.py
index 7c70ae7fc1daec..a764b1f3158f7b 100644
--- a/tests/sentry/monitors/endpoints/test_organization_monitor_index.py
+++ b/tests/sentry/monitors/endpoints/test_organization_monitor_index.py
@@ -443,7 +443,7 @@ def test_simple_with_alert_rule(self):
         response = self.get_success_response(self.organization.slug, **data)
 
         monitor = Monitor.objects.get(slug=response.data["slug"])
-        alert_rule_id = monitor.config.get("alert_rule_id")
+        alert_rule_id = monitor.config["alert_rule_id"]
         rule = Rule.objects.get(
             project_id=monitor.project_id, id=alert_rule_id, source=RuleSource.CRON_MONITOR
         )
diff --git a/tests/sentry/notifications/utils/test_participants.py b/tests/sentry/notifications/utils/test_participants.py
index 0f50c66713dbdb..f3d111721ac7fc 100644
--- a/tests/sentry/notifications/utils/test_participants.py
+++ b/tests/sentry/notifications/utils/test_participants.py
@@ -488,6 +488,7 @@ def test_send_to_suspect_committers(self):
             data={"stacktrace": STACKTRACE},
             project_id=self.project.id,
         )
+        assert event.group is not None
 
         GroupOwner.objects.create(
             group=event.group,
@@ -535,6 +536,7 @@ def test_send_to_suspect_committers_no_owners(self):
             },
             project_id=project_suspect_committer.id,
         )
+        assert event.group is not None
 
         GroupOwner.objects.create(
             group=event.group,
@@ -565,6 +567,7 @@ def test_send_to_suspect_committers_dupe(self):
             data={"stacktrace": STACKTRACE},
             project_id=self.project.id,
         )
+        assert event.group is not None
 
         GroupOwner.objects.create(
             group=event.group,
@@ -588,6 +591,7 @@ def test_send_to_suspect_committers_exception(self):
             data={"stacktrace": STACKTRACE},
             project_id=self.project.id,
         )
+        assert event.group is not None
 
         GroupOwner.objects.create(
             group=event.group,
@@ -614,6 +618,7 @@ def test_send_to_suspect_committers_not_project_member(self):
             data={"stacktrace": STACKTRACE},
             project_id=self.project.id,
         )
+        assert event.group is not None
 
         GroupOwner.objects.create(
             group=event.group,
diff --git a/tests/sentry/relay/config/test_metric_extraction.py b/tests/sentry/relay/config/test_metric_extraction.py
index cadd05808a0a61..dbbe1d8e85d0d9 100644
--- a/tests/sentry/relay/config/test_metric_extraction.py
+++ b/tests/sentry/relay/config/test_metric_extraction.py
@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 from collections.abc import Sequence
 from datetime import timedelta
 from unittest import mock
@@ -2091,29 +2093,13 @@ def test_widget_modifed_after_on_demand(default_project: Project) -> None:
 def test_get_current_widget_specs(
     default_project: Project, current_version: SpecVersion, expected: set[str]
 ) -> None:
-    for i, spec in enumerate(
-        [
-            {
-                "version": 1,
-                "hashes": ["abcd", "defg"],
-                "state": "enabled:manual",
-            },
-            {
-                "version": 2,
-                "hashes": ["1234", "5678"],
-                "state": "enabled:manual",
-            },
-            {
-                "version": 2,
-                "hashes": ["ab12", "cd78"],
-                "state": "disabled:high-cardinality",
-            },
-            {
-                "version": 2,
-                "hashes": ["1234"],
-                "state": "enabled:manual",
-            },
-        ]
+    for i, (version, hashes, state) in enumerate(
+        (
+            (1, ["abcd", "defg"], "enabled:manual"),
+            (2, ["1234", "5678"], "enabled:manual"),
+            (2, ["ab12", "cd78"], "disabled:high-cardinality"),
+            (2, ["1234"], "enabled:manual"),
+        )
     ):
         widget_query, _, _ = create_widget(
             ["epm()"],
@@ -2124,9 +2110,9 @@ def test_get_current_widget_specs(
         )
         DashboardWidgetQueryOnDemand.objects.create(
             dashboard_widget_query=widget_query,
-            spec_version=spec["version"],
-            spec_hashes=spec["hashes"],
-            extraction_state=spec["state"],
+            spec_version=version,
+            spec_hashes=hashes,
+            extraction_state=state,
         )
     with mock.patch(
         "sentry.snuba.metrics.extraction.OnDemandMetricSpecVersioning.get_query_spec_version",
diff --git a/tests/sentry/tasks/integrations/github/test_pr_comment.py b/tests/sentry/tasks/integrations/github/test_pr_comment.py
index 83f8f71b0cb956..fd40e17ef7dcfb 100644
--- a/tests/sentry/tasks/integrations/github/test_pr_comment.py
+++ b/tests/sentry/tasks/integrations/github/test_pr_comment.py
@@ -135,6 +135,7 @@ def add_groupowner_to_commit(self, commit: Commit, project, user):
             },
             project_id=project.id,
         )
+        assert event.group is not None
         self.fingerprint += 1
         groupowner = GroupOwner.objects.create(
             group=event.group,
diff --git a/tests/sentry/tasks/test_commit_context.py b/tests/sentry/tasks/test_commit_context.py
index 3201a46db5fdec..d6a700368c563b 100644
--- a/tests/sentry/tasks/test_commit_context.py
+++ b/tests/sentry/tasks/test_commit_context.py
@@ -1165,7 +1165,7 @@ def test_gh_comment_debounces(self, get_jwt, mock_comment_workflow, mock_get_com
         groupowner = GroupOwner.objects.create(
             group_id=self.event.group_id,
             type=GroupOwnerType.SUSPECT_COMMIT.value,
-            user_id="1",
+            user_id=1,
             project_id=self.event.project_id,
             organization_id=self.project.organization_id,
             context={"commitId": self.commit.id},
@@ -1200,7 +1200,7 @@ def test_gh_comment_multiple_comments(
         groupowner = GroupOwner.objects.create(
             group_id=self.event.group_id,
             type=GroupOwnerType.SUSPECT_COMMIT.value,
-            user_id="1",
+            user_id=1,
             project_id=self.event.project_id,
             organization_id=self.project.organization_id,
             context={"commitId": self.commit.id},
diff --git a/tests/sentry/utils/test_committers.py b/tests/sentry/utils/test_committers.py
index 437cdfa71a48bd..ceb6a679c46dfd 100644
--- a/tests/sentry/utils/test_committers.py
+++ b/tests/sentry/utils/test_committers.py
@@ -841,7 +841,7 @@ def test_no_author(self):
             group_id=event.group.id, project_id=self.project.id, release_id=self.release.id
         )
         GroupOwner.objects.create(
-            group_id=event.group_id,
+            group_id=event.group.id,
             project=self.project,
             organization_id=self.organization.id,
             type=GroupOwnerType.SUSPECT_COMMIT.value,