test: widen scheduling buffer in get_info suppressed-by-history test

bluetoothbot · bluetoothbot · commit a018b33f2e48 · 2026-05-17T15:20:49.000Z
The first send_event.wait() in test_get_info_suppressed_by_question_history
only tolerated 325ms of scheduling delay (_LISTENER_TIME + max random sync
delay + 5ms), which periodically flakes on Windows GitHub runners when the
helper thread + asyncio loop take longer to fire the initial query.

Bump both wait_time formulas by 500ms so loop iteration waits (wait_time *
0.25) absorb CI jitter while still landing every refresh inside the
_DUPLICATE_QUESTION_INTERVAL (999ms) suppression window the test depends on.
diff --git a/tests/services/test_info.py b/tests/services/test_info.py
@@ -441,7 +441,11 @@ def get_service_info_helper(zc, type, name):
                     args=(zc, service_type, service_name),
                 )
                 helper_thread.start()
-                wait_time = (const._LISTENER_TIME + info._AVOID_SYNC_DELAY_RANDOM_INTERVAL[1] + 5) / 1000
+                # 500ms CI buffer absorbs scheduling jitter on slow runners
+                # (notably Windows) without compromising the timing windows
+                # the rest of the test relies on; entries added each loop
+                # iteration must still land inside _DUPLICATE_QUESTION_INTERVAL.
+                wait_time = (const._LISTENER_TIME + info._AVOID_SYNC_DELAY_RANDOM_INTERVAL[1] + 500) / 1000
 
                 # Expect query for SRV, TXT, A, AAAA
                 send_event.wait(wait_time)
@@ -484,7 +488,7 @@ def get_service_info_helper(zc, type, name):
                 assert service_info is None
 
                 wait_time = (
-                    const._DUPLICATE_QUESTION_INTERVAL + info._AVOID_SYNC_DELAY_RANDOM_INTERVAL[1] + 5
+                    const._DUPLICATE_QUESTION_INTERVAL + info._AVOID_SYNC_DELAY_RANDOM_INTERVAL[1] + 500
                 ) / 1000
                 # Expect no queries as all are suppressed by the question history
                 last_sent = None
