public static Properties getDistributedSystemProperties() {
    Properties p = new Properties();
    p.setProperty(LOCATORS, getLocatorString());
    p.setProperty(MCAST_PORT, "0");
    p.setProperty(ENABLE_CLUSTER_CONFIGURATION, "false");
    p.setProperty(USE_CLUSTER_CONFIGURATION, "false");
    p.setProperty(VALIDATE_SERIALIZABLE_OBJECTS, "true");
    p.setProperty(LOG_LEVEL, logLevel);
    return p;
  }
Test it see if the eclise dunit environment is launched.
geode-dunit/src/main/java/org/apache/geode/test/dunit/internal/DUnitLauncher.java