SNOW-943025: improve flaky OOB test (#1782)

Author: sfc-gh-aling

test/unit/test_telemetry_oob.py

@@ -69,7 +69,12 @@ def test_telemetry_oob_simple_flush(telemetry_setup, caplog):
         "Failed to generate a JSON dump from the passed in telemetry OOB events"
         not in caplog.text
     )
-    assert telemetry.size() == 0
+    # since pytests can run test in parallel and TelemetryService is a singleton, other tests
+    # might encounter error logged into the queue of the OOB Telemetry simultaneously
+    # leading to assert telemetry.size() == 0 failure
+    # here we check that the OCSP exception event in the test is flushed
+    for event in list(telemetry.queue.queue):
+        assert "OCSPException" not in event.name
 
 
 @pytest.mark.flaky(reruns=3)