};
        envMap.clear();
        systemHelper.init();
        systemHelper.addShutdownHook(() -> {});
        ComponentUtil.register(systemHelper, "systemHelper");
    }

    @Test
    public void test_getUsername() {
        assertEquals("guest", systemHelper.getUsername());
    }

    @Test
    public void test_getCurrentTimeAsLocalDateTime() {
        final long current =