}

    @Test
    public void test_constructor() {
        LogNotificationTarget target = new LogNotificationTarget();
        assertNotNull(target);
    }

    @Test
    public void test_expired_emptyBuffer() {
        // expired() with empty buffer is no-op (no exception)
        logNotificationTarget.expired();
    }

    @Test
    public void test_flush_callsExpired() {