diff --git a/zerver/tests/test_events.py b/zerver/tests/test_events.py
index c4e55020c7..ad2effea90 100644
--- a/zerver/tests/test_events.py
+++ b/zerver/tests/test_events.py
@@ -21,53 +21,53 @@ from zerver.models import (
 from zerver.lib.actions import (
     bulk_add_subscriptions,
     bulk_remove_subscriptions,
-    do_add_alert_words,
     check_add_realm_emoji,
     check_send_typing_notification,
-    notify_realm_custom_profile_fields,
-    do_add_realm_filter,
+    do_add_alert_words,
+    do_add_default_stream,
     do_add_reaction,
-    do_remove_reaction,
+    do_add_realm_domain,
+    do_add_realm_filter,
     do_change_avatar_fields,
+    do_change_bot_owner,
     do_change_default_all_public_streams,
     do_change_default_events_register_stream,
     do_change_default_sending_stream,
     do_change_full_name,
-    do_change_bot_owner,
+    do_change_icon_source,
     do_change_is_admin,
+    do_change_notification_settings,
+    do_change_realm_domain,
     do_change_stream_description,
     do_change_subscription_property,
     do_create_user,
     do_deactivate_stream,
     do_deactivate_user,
+    do_delete_message,
     do_mark_hotspot_as_read,
     do_reactivate_user,
     do_refer_friend,
     do_regenerate_api_key,
     do_remove_alert_words,
+    do_remove_default_stream,
+    do_remove_reaction,
+    do_remove_realm_domain,
     do_remove_realm_emoji,
     do_remove_realm_filter,
     do_rename_stream,
-    do_add_default_stream,
-    do_remove_default_stream,
     do_set_muted_topics,
-    do_set_realm_property,
     do_set_realm_authentication_methods,
     do_set_realm_message_editing,
+    do_set_realm_property,
+    do_set_user_display_setting,
     do_update_embedded_data,
     do_update_message,
     do_update_message_flags,
     do_update_muted_topic,
     do_update_pointer,
     do_update_user_presence,
-    do_set_user_display_setting,
-    do_change_notification_settings,
-    do_add_realm_domain,
-    do_change_realm_domain,
-    do_remove_realm_domain,
-    do_change_icon_source,
     log_event,
-    do_delete_message,
+    notify_realm_custom_profile_fields,
 )
 from zerver.lib.events import (
     apply_events,