@Test
    public void port_can_be_configured() {
        ConfigOptions.ConfigServer[] parsed = toConfigServers("myhost:123");
        int port = parsed[0].port.get();
        assertEquals(123, port);
    }
@author Ulf Lilleengen
@author Tony Vaagenes
standalone-container/src/test/java/com/yahoo/container/standalone/ConfigEnvironmentVariablesTest.java