node/test/parallel/test-repl-harmony.js

27 строки
682 B
JavaScript

var common = require('../common');
var assert = require('assert');
var spawn = require('child_process').spawn;
var args = ['--harmony', '--harmony_scoping', '--use-strict', '-i'];
var child = spawn(process.execPath, args);
var input = '(function(){const y=1;y=2})()\n';
var expectOut = /^> TypeError: Assignment to constant variable.\n/;
child.stderr.setEncoding('utf8');
child.stderr.on('data', function(c) {
throw new Error('child.stderr be silent');
});
child.stdout.setEncoding('utf8');
var out = '';
child.stdout.on('data', function(c) {
out += c;
});
child.stdout.on('end', function() {
assert(expectOut.test(out));
console.log('ok');
});
child.stdin.end(input);