assertEquals(1, filteredEnvMap.size());
        assertEquals("123", filteredEnvMap.get("FESS_ENV_TEST"));
    }

    @Test
    public void test_isUserPermission() {
        assertTrue(systemHelper.isUserPermission("1test"));

        assertFalse(systemHelper.isUserPermission(null));
        assertFalse(systemHelper.isUserPermission(""));