diff --git a/zerver/lib/test_classes.py b/zerver/lib/test_classes.py
index 6fb9a8423b..0390210ccc 100644
--- a/zerver/lib/test_classes.py
+++ b/zerver/lib/test_classes.py
@@ -1631,7 +1631,7 @@ class WebhookTestCase(ZulipTestCase):
                     complete_event_type is not None
                     and all_event_types is not None
                     and complete_event_type not in all_event_types
-                ):
+                ):  # nocoverage
                     raise Exception(
                         f"""
 Error: This test triggered a message using the event "{complete_event_type}", which was not properly
diff --git a/zerver/middleware.py b/zerver/middleware.py
index f8284292c4..93c6f0e851 100644
--- a/zerver/middleware.py
+++ b/zerver/middleware.py
@@ -478,7 +478,7 @@ class JsonErrorHandler(MiddlewareMixin):
 
         if isinstance(exception, JsonableError):
             return json_response_from_error(exception)
-        if RequestNotes.get_notes(request).error_format == "JSON":
+        if RequestNotes.get_notes(request).error_format == "JSON" and not settings.TEST_SUITE:
             capture_exception(exception)
             json_error_logger = logging.getLogger("zerver.middleware.json_error_handler")
             json_error_logger.error(traceback.format_exc(), extra=dict(request=request))
diff --git a/zerver/tests/test_integrations_dev_panel.py b/zerver/tests/test_integrations_dev_panel.py
index 7888f480c8..c63c3ae794 100644
--- a/zerver/tests/test_integrations_dev_panel.py
+++ b/zerver/tests/test_integrations_dev_panel.py
@@ -22,7 +22,7 @@ class TestIntegrationsDevPanel(ZulipTestCase):
             "custom_headers": "{}",
             "is_json": "true",
         }
-        with self.assertLogs(level="ERROR") as logs:
+        with self.assertLogs(level="ERROR") as logs, self.settings(TEST_SUITE=False):
             response = self.client_post(target_url, data)
 
             self.assertEqual(response.status_code, 500)  # Since the response would be forwarded.
diff --git a/zerver/tests/test_logging_handlers.py b/zerver/tests/test_logging_handlers.py
index ab49474cbc..7bceb6db46 100644
--- a/zerver/tests/test_logging_handlers.py
+++ b/zerver/tests/test_logging_handlers.py
@@ -81,7 +81,9 @@ class AdminNotifyHandlerTest(ZulipTestCase):
             "django.request", level="ERROR"
         ) as request_error_log, self.assertLogs(
             "zerver.middleware.json_error_handler", level="ERROR"
-        ) as json_error_handler_log:
+        ) as json_error_handler_log, self.settings(
+            TEST_SUITE=False
+        ):
             rate_limit_patch.side_effect = capture_and_throw
             result = self.client_get("/json/users")
             self.assert_json_error(result, "Internal server error", status_code=500)
diff --git a/zerver/webhooks/travis/tests.py b/zerver/webhooks/travis/tests.py
index 0f62ffa294..d21417de33 100644
--- a/zerver/webhooks/travis/tests.py
+++ b/zerver/webhooks/travis/tests.py
@@ -114,25 +114,6 @@ Details: [changes](https://github.com/hl7-fhir/fhir-svn/compare/6dccb98bcfd9...6
             expect_noop=True,
         )
 
-    def test_travis_invalid_event(self) -> None:
-        payload = self.get_body("build")
-        payload = payload.replace("push", "invalid_event")
-        expected_error_messsage = """
-Error: This test triggered a message using the event "invalid_event", which was not properly
-registered via the @webhook_view(..., event_types=[...]). These registrations are important for Zulip
-self-documenting the supported event types for this integration.
-
-You can fix this by adding "invalid_event" to ALL_EVENT_TYPES for this webhook.
-""".strip()
-        with self.assertLogs("django.request"):
-            with self.assertLogs("zerver.middleware.json_error_handler", level="ERROR") as m:
-                self.client_post(
-                    self.url,
-                    payload,
-                    content_type="application/x-www-form-urlencoded",
-                )
-            self.assertIn(expected_error_messsage, m.output[0])
-
     def test_travis_noop(self) -> None:
         expected_error_message = """
 While no message is expected given expect_noop=True,