'use strict'; var assert = require('assert'); var spawn = require('child_process').spawn; if (process.argv[2] === 'child') { process.stdout.write(JSON.stringify(process.execArgv)); } else { var execArgv = ['--harmony_proxies', '--stack-size=256']; var args = [__filename, 'child', 'arg0']; var child = spawn(process.execPath, execArgv.concat(args)); var out = ''; child.stdout.on('data', function(chunk) { out += chunk; }); child.on('exit', function() { assert.deepEqual(JSON.parse(out), execArgv); }); }