摩卡中的describe()是什么 [英] What is describe() in Mocha

问题描述

我正在尝试弄清Mocha，这是我从文档中看到的示例:

I am trying to get my hands dirty with Mocha and here is the example I saw from documentation:

var assert = require("assert")
describe('Array', function(){
  describe('#indexOf()', function(){
    it('should return -1 when the value is not present', function(){
      assert.equal(-1, [1,2,3].indexOf(5));
      assert.equal(-1, [1,2,3].indexOf(0));
    })
  })
})

大多数示例都显示了第二个describe语句

Most of the examples show the second describe statement

  describe('#indexOf()', function(){

从#indexOf()中的#开始. #的意义是什么?为什么不能将其简单地写为indexOf?在哪里可以对描述的工作原理有基本的了解?

starting with # in #indexOf(). What is the significance of this #? Why can this not be written simply as indexOf? Where can I get a fundamental understanding of how the describe works?

PS:我看了 http://visionmedia.github.io/mocha/#上的文档界面，但无法弄清楚它们是如何出现的以及如何处理这些界面.

PS: I looked at the documentation at http://visionmedia.github.io/mocha/#interfaces but can't figure out how these came into picture and how are these interfaces processed.

Thx

推荐答案

mocha的bdd语法是ruby的 RSpec 的启发.会找到Mocha约定搜索RSpec的最佳技巧，这是一个不错的起点:

the bdd syntax of mocha is a inspired in ruby's RSpec, therefore you'd find the best tips for mocha's conventions searching for RSpec, here's a good place to start:

http://betterspecs.org/

特别是其中提到了#:

例如，使用的Ruby文档约定. (或::)表示类方法的名称，#表示实例方法的名称.

For instance, use the Ruby documentation convention of . (or ::) when referring to a class method's name and # when referring to an instance method's name.

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