test/parallel/test-cli-bad-options.js


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'use strict';
require('../common');

// Tests that node exits consistently on bad option syntax.

const assert = require('assert');
const spawn = require('child_process').spawnSync;

requiresArgument('--inspect-port');
requiresArgument('--inspect-port=');
requiresArgument('--debug-port');
requiresArgument('--debug-port=');
requiresArgument('--eval');

function requiresArgument(option) {
  const r = spawn(process.execPath, [option], {encoding: 'utf8'});

  assert.strictEqual(r.status, 9);

  const msg = r.stderr.split(/\r?\n/)[0];
  assert.strictEqual(
    msg,
    `${process.execPath}: ${option} requires an argument`
  );
}