javascript 需要外部 js 文件进行 mocha 测试
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Requiring external js file for mocha testing
提问by Msencenb
So I'm playing around with BDD and mocha with my express.js project. I'm just getting started so here is what I have as my first test case:
所以我在我的 express.js 项目中玩弄 BDD 和 mocha。我刚刚开始，所以这是我的第一个测试用例：
should = require "should"
require "../lib/models/skill.js"
describe 'Skill', ->
describe '#constructor()', ->
it 'should return an instance of class skill', ->
testSkill = new Skill "iOS", "4 years", 100
testSkill.constructor.name.should.equal 'Skill'
(also this coffeescript generates some odd looking js since it inserts returns to last statement.. is this the correct way to setup a test with coffeescript?)
（这个coffeescript也会生成一些看起来很奇怪的js，因为它插入了返回到最后一条语句。这是使用coffeescript设置测试的正确方法吗？）
Now when I run mocha I get this error:
现在，当我运行 mocha 时，出现此错误：
1) Skill #constructor() should return an instance of class skill:
ReferenceError: Skill is not defined
Which I assume means skill.js was not imported correctly. My skill class is very simple at this point, just a constructor:
我认为这意味着未正确导入 Skill.js。我的技能类在这一点上很简单，只是一个构造函数：
class Skill
constructor: (@name,@years,@width) ->
How do I import my models so my mocha test can access them?
如何导入我的模型以便我的 mocha 测试可以访问它们？
采纳答案by Vadim Baryshev
You need to export your Skill class like this:
你需要像这样导出你的技能类：
class Skill
constructor: (@name,@years,@width) ->
module.exports = Skill
And assign it to variable in your test:
并将其分配给测试中的变量：
should = require "should"
Skill = require "../lib/models/skill.js"
describe 'Skill', ->
describe '#constructor()', ->
it 'should return an instance of class skill', ->
testSkill = new Skill "iOS", "4 years", 100
testSkill.constructor.name.should.equal 'Skill'
回答by Mil0R3
if skill.js is in the same path of your test code, try this.
如果 Skill.js 与您的测试代码在同一路径中，请尝试此操作。
require "./skill.js"
