Coffeescript、nodeunit和全局变量

Question

我有一个用Coffeescript编写的web应用程序，我正在使用nodeunit进行测试，但我似乎无法访问在测试中设置的全局变量(应用程序中的“session”变量)：

src/test.cafee

root = exports ? this

this.test_exports = ->
    console.log root.export
    root.export

test/test.cafee

exports["test"] = (test) ->
    exports.export = "test"
    test.equal test_file.test_exports(), "test"
    test.done()

输出结果：

test.coffee
undefined
✖ test

AssertionError: undefined == 'test'

如何跨测试访问全局变量？

Answer 1

为节点创建导出的伪window全局：

src/window.cafee

exports["window"] = {}

src/test.cafee

if typeof(exports) == "object"
    window = require('../web/window')

this.test_exports = ->
    console.log window.export
    window.export

test/test.cafee

test_file = require "../web/test"
window = require "../web/window'"

exports["test"] = (test) ->
    window.export = "test"
    test.equal test_file.test_exports(), "test"
    test.done()

不是很优雅，但很管用。

Answer 2

您可以使用" global“对象共享全局状态。

one.coffee：

console.log "At the top of one.coffee, global.one is", global.one
global.one = "set by one.coffee"

two.coffee：

console.log "At the top of two.coffee, global.one is", global.one
global.two = "set by two.coffee"

从第三个模块加载每个模块(本例中为交互式会话)

$ coffee
coffee> require "./one"; require "./two"
At the top of one.coffee, global.one is undefined
At the top of two.coffee, global.one is set by one.coffee
{}