envMap.put("HOSTNAME", "yyy");
            assertEquals("yyy", systemHelper.getHostname());
        } finally {
            envMap.remove("HOSTNAME");
        }
    }

    public void test_isEoled() {
        assertEquals(systemHelper.getCurrentTimeAsLong() > systemHelper.eolTime, systemHelper.isEoled());
        final SystemHelper helper1 = new SystemHelper() {
            @Override