无法使用 CoffeeScript 运行 Mocha [英] Cannot run Mocha with CoffeeScript

问题描述

Makefile - 内容:

Makefile - Content:

REPORTER = dot

all: build

build:
    @./node_modules/coffee-script/bin/coffee 
        -c 
        -o lib src

clean:
    rm -rf lib
    mkdir lib

watch:
    @./node_modules/coffee-script/bin/coffee 
        -o lib 
        -cw src

test:
    @./node_modules/mocha/bin/mocha 
        --reporter $(REPORTER) 
        test/*.coffee

.PHONY: build clean watch test

项目根目录有一个test文件夹，里面有两个文件:mocha.opts和example.coffee

The project root directory has a test folder with two files: mocha.opts and example.coffee

example.coffee - 内容

example.coffee - Content

describe "feature", ->
   it "should add two numbers", ->
       (2+2).should.equal 4

在运行make test，得到如下错误:

On running make test, getting the following error:

cribe 'feature',
      ^^^^^^^^^

node.js:201
        throw e; // process.nextTick error, or 'error' event on first tick
              ^
SyntaxError: Unexpected string
    at Module._compile (module.js:429:25)
    at Object..js (module.js:459:10)
    at Module.load (module.js:348:31)
    at Function._load (module.js:308:12)
    at Module.require (module.js:354:17)
    at require (module.js:370:17)
    at /home/my_username/testcode/coffeepress/node_modules/mocha/bin/_mocha:261:27
    at Array.forEach (native)
    at load (/home/my_username/testcode/coffeepress/node_modules/mocha/bin/_mocha:258:9)
    at Object.<anonymous> (/home/my_username/testcode/coffeepress/node_modules/mocha/bin/_mocha:249:1)
    at Module._compile (module.js:441:26)
    at Object..js (module.js:459:10)
    at Module.load (module.js:348:31)
    at Function._load (module.js:308:12)
    at Array.0 (module.js:479:10)
    at EventEmitter._tickCallback (node.js:192:40)

使用 js 文件运行 Mocha 成功，但无法使用 CoffeeScript 运行.我真的很想 - 为了代码简洁.

Running Mocha with js files succeeds, but cannot get it to run with CoffeeScript. I really want to - for code brevity.

请指导.

推荐答案

从 Mocha 1.0 开始:

As of Mocha 1.0:

开箱即用不再支持咖啡脚本.可以通过映射文件扩展名(与 --watch 一起使用)和模块名称来使用 CS 和类似的转译器.例如 --compilers coffee:coffee-script 和 CoffeeScript 1.6- 或 --compilers coffee:coffee-script/register 和 CoffeeScript 1.7+.

coffee-script is no longer supported out of the box. CS and similar transpilers may be used by mapping the file extensions (for use with --watch) and the module name. For example --compilers coffee:coffee-script with CoffeeScript 1.6- or --compilers coffee:coffee-script/register with CoffeeScript 1.7+.

(引用 http://visionmedia.github.io/mocha/#compilers-option) 所以，你需要添加一行

(Quoting http://visionmedia.github.io/mocha/#compilers-option) So, you need to add the line

--compilers coffee:coffee-script/register

或者，对于 CS <= 1.6.x，

or, for CS <= 1.6.x,

--compilers coffee:coffee-script

到您的 mocha.opts 文件.

这篇关于无法使用 CoffeeScript 运行 Mocha的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！