fc2489503f54d6ca607286510540a3ba3acbb98d,tests/storages_tests/rdb_tests/test_storage.py,,test_fail_stale_trials,#,329

Before Change

        storage.record_heartbeat(trial._trial_id)
        time.sleep(grace_period + 1)

        t = study.trials[0]
        assert t.state is TrialState.RUNNING

        // Exceptions raised in spawned threads are caught by `_TestableThread`.
        with patch("optuna._optimize.Thread", _TestableThread):

After Change

        storage.heartbeat_interval = heartbeat_interval
        storage.grace_period = grace_period
        study1 = create_study(storage=storage)
        study2 = create_study(storage=storage)

        trial = study1.ask()
        storage.record_heartbeat(trial._trial_id)
        time.sleep(grace_period + 1)

Instances