@Test
    public void parseOSName() {
        String old = System.getProperty("os.name");
        try {
            System.setProperty("os.name", "windows7");
            Assert.assertTrue(SystemInfo.parseOSName()[0]);
            System.setProperty("os.name", "linux123");
            Assert.assertTrue(SystemInfo.parseOSName()[1]);
            System.setProperty("os.name", "mac osx123");
            Assert.assertTrue(SystemInfo.parseOSName()[2]);
        } finally {
            if (old == null) {
                System.clearProperty("os.name");
            } else {
                System.setProperty("os.name", old);
            }
        }
    }
@author <a href="mailto:zhanggeng.zg@antfin.com">GengZhang</a>
core/api/src/test/java/com/alipay/sofa/rpc/common/SystemInfoTest.java