private void testStartClientOnWindows(String suffix, String os) throws IOException {
    String dir = getServerPath();
    final String output =
        "If you want to change this configuration, please check conf/windows/datanode-env.bat.";
    String cmd =
        dir
            + File.separator
            + "conf"
            + File.separator
            + "windows"
            + File.separator
            + "datanode-env"
            + suffix;
    ProcessBuilder startBuilder = new ProcessBuilder("cmd.exe", "/c", cmd);
    testOutput(dir, suffix, startBuilder, output, os);
  }
This test case is strange that it relies on the maven output files
iotdb-core/datanode/src/test/java/org/apache/iotdb/db/script/EnvScriptIT.java