的NodeJS從VM獲得功能和正常使用

Question

我有這樣的代碼

// hello.js 
var hello = function() { 
    return 'hello world'; 
}; 

var helloDate = function() { 
    console.log(new Date()); 
    return 'hello world'; 
}; 

裝有的NodeJS VM

//test/test_hello.js 
var sinon = require('sinon'); 
var vm = require('vm'); 
var fs = require('fs'); 

var source = fs.readFileSync('./hello.js').toString(); 

var local = new vm.createContext({}); 
var script = new vm.Script(source); 
script.runInContext(local); 

var localModule = {}; 
for (var o in local) { 
    localModule[o] = local[o]; 
} 

before(function() { 
}); 

it('hello', function() { 
    local.hello(); 
}); 

it('helloDate', function() { 
    localModule.helloDate(); 
}); 

但我用localModule.helloDate()我收到此錯誤信息

$ mocha 
    ✓ hello 
    1) helloDate 

    1 passing (7ms) 
    1 failing 

    1) helloDate: 
    ReferenceError: console is not defined 
     at Object.helloDate (evalmachine.<anonymous>:6:3) 
     at Context.<anonymous> (test/test_hello.js:26:15) 

如何在nodejs中「正常」使用helloDate？就像使用模塊的功能一樣。

Answer 1

試圖通過控制檯VM上下文，像這樣：

var local = new vm.createContext({console: console});