Otto JS Test in Go

otto-test.go

package main

import (
	"log"
	"time"

	"github.com/robertkrimen/otto"
)

const (
	script = `
	var messages = ["We're doing something", "horrible", "here!"];

	for (var i = 0; i < messages.length; i++) {
		console.log(messages[i]);
	}

	while (true) {}
`
)

func execUnsafe(script string) {
	defer func() {
		if r := recover(); r != nil {
			log.Println(r)
		}
	}()

	vm := otto.New()
	vm.Interrupt = make(chan func(), 1)

	go func() {
		<-time.After(time.Second * 2)
		vm.Interrupt <- func() {
			panic("timeout")
		}
	}()

	if _, err := vm.Run(script); err != nil {
		log.Println(err)
	}
}

func main() {
	execUnsafe(script)
}