assertEquals("0", fessEnv.getTimeAdjustTimeMillis());
        assertEquals(Long.valueOf(0), fessEnv.getTimeAdjustTimeMillisAsLong());

        // Test getMailSendMock and isMailSendMock
        assertEquals("true", fessEnv.getMailSendMock());
        assertTrue(fessEnv.isMailSendMock());

        // Test getMailSmtpServerMainHostAndPort
        assertEquals("localhost:25", fessEnv.getMailSmtpServerMainHostAndPort());