nodejs/test/parallel/test-permission-allow-wasi-cli.js

// Flags: --permission --allow-wasi --allow-fs-read=*
'use strict';

const common = require('../common');
const { isMainThread } = require('worker_threads');

if (!isMainThread) {
  common.skip('This test only works on a main thread');
}

const assert = require('assert');
const { WASI } = require('wasi');

// Guarantee the initial state
{
  assert.ok(process.permission.has('wasi'));
}

// When a permission is set by cli, the process shouldn't be able
// to create WASI instance unless --allow-wasi is sent
{
  // doesNotThrow
  new WASI({
    version: 'preview1',
  });
}