[英]Coffeescript unit test failing with Mocha, Should, Node.js
我正在嘗試使用Mocha為CoffeeScript示例類層次結構運行示例CoffeeScript單元測試。 但是我一直在收到錯誤,而且似乎在沒有任何幫助的情況下也無法修復它們。 這是我的示例CoffeeScript文件,位於/ src文件夾中:
#Animal.coffee
class Animal
constructor: (@name) ->
move: (meters) ->
console.log @name + " moved #{meters}m."
class Snake extends Animal
move: ->
console.log "Slithering..."
super 5
class Horse extends Animal
move: ->
console.log "Galloping..."
super 45
#module.exports = new Snake()
module.exports.Snake = Snake
這是/ Tests文件夾中的CoffeeScript單元測試:
#AnimalTest.coffee
should = require 'should'
{ Snake } = require "../src/Animal"
describe 'sample', ->
it 'should pass', ->
snake = new Snake "Venomous python"
snake.should.be.an.instanceOf(Snake)
我已經在全球范圍內安裝了所有這些庫。 因此,當我通過命令行(Windows 7)執行此命令時:
Desktop>mocha --compilerscoffee:coffee-script/register Tests
它拋出了這個錯誤:
desktop\Tests\sampleTest.coffee:15
snake.should.be.an.instanceOf(Snake);
^
ReferenceError: snake is not defined
at Object.<anonymous> (c:\users\ap\desktop\Tests\AnimalTest.coffee:8:3)
at Object.<anonymous> (c:\users\ap\desktop\Tests\AnimalTest.coffee:2:1)
at Module._compile (module.js:456:26)
at Object.loadFile (C:\Users\ap\AppData\Roaming\npm\node_modules\coffee-sc
ript\lib\coffee-script\register.js:16:19)
at Module.load (C:\Users\ap\AppData\Roaming\npm\node_modules\coffee-script
\lib\coffee-script\register.js:45:36)
at Function.Module._load (module.js:312:12)
at Module.require (module.js:364:17)
at require (module.js:380:17)
at C:\Users\ap\AppData\Roaming\npm\node_modules\mocha\lib\mocha.js:172:27
at Array.forEach (native)
at Mocha.loadFiles (C:\Users\ap\AppData\Roaming\npm\node_modules\mocha\lib
\mocha.js:169:14)
at Mocha.run (C:\Users\ap\AppData\Roaming\npm\node_modules\mocha\lib\mocha
.js:356:31)
at Object.<anonymous> (C:\Users\ap\AppData\Roaming\npm\node_modules\mocha\
bin\_mocha:359:16)
at Module._compile (module.js:456:26)
at Object.Module._extensions..js (module.js:474:10)
at Module.load (module.js:356:32)
at Function.Module._load (module.js:312:12)
at Function.Module.runMain (module.js:497:10)
at startup (node.js:119:16)
at node.js:902:3
我正在使用CoffeeScript版本1.7.1,Mocha版本1.18.2和Node版本0.10.26。 我嘗試到處尋找並嘗試了測試之間的所有組合,但是我一生都無法想出如何使它成功創建對象並運行測試的方法。
作為參考,我嘗試了所有其他組合的這些方法: 使用nodejs從另一個CoffeeScript文件中請求CoffeeScript文件
如何在Coffeescript Mocha Test中檢查類繼承?
有人可以指出可能出什么問題嗎?
更新1:修改了dule指出的所有內容,但現在我收到此錯誤:
module.js:340
throw err;
^
Error: Cannot find module 'should'
at Function.Module._resolveFilename (module.js:338:15)
at Function.Module._load (module.js:280:25)
at Module.require (module.js:364:17)
at require (module.js:380:17)
at Object.<anonymous> (C:\Users\ap\Desktop\Tests\AnimalTest.coffee:2:11)
at Object.<anonymous> (C:\Users\ap\Desktop\Tests\AnimalTest.coffee:2:1)
at Module._compile (module.js:456:26)
at Object.loadFile (C:\Users\ap\AppData\Roaming\npm\node_modules\coffee-sc
ript\lib\coffee-script\register.js:16:19)
at Module.load (C:\Users\ap\AppData\Roaming\npm\node_modules\coffee-script
\lib\coffee-script\register.js:45:36)
at Function.Module._load (module.js:312:12)
at Module.require (module.js:364:17)
at require (module.js:380:17)
at C:\Users\ap\AppData\Roaming\npm\node_modules\mocha\lib\mocha.js:172:27
at Array.forEach (native)
at Mocha.loadFiles (C:\Users\ap\AppData\Roaming\npm\node_modules\mocha\lib
\mocha.js:169:14)
at Mocha.run (C:\Users\ap\AppData\Roaming\npm\node_modules\mocha\lib\mocha
.js:356:31)
at Object.<anonymous> (C:\Users\ap\AppData\Roaming\npm\node_modules\mocha\
bin\_mocha:359:16)
at Module._compile (module.js:456:26)
at Object.Module._extensions..js (module.js:474:10)
at Module.load (module.js:356:32)
at Function.Module._load (module.js:312:12)
at Function.Module.runMain (module.js:497:10)
at startup (node.js:119:16)
at node.js:902:3
更新2:我對AnimalTest腳本進行了以下更改,並通過了測試。
should = require ("../npm/node_modules/should/should")
{ Snake } = require ("../src/Animal.coffee")
describe 'sample', ->
it 'should pass', ->
console.log(new Snake "Venomous python")
但是,由於某種原因,創建對象並將其保存以供使用仍然失敗。 和我得到相同的snake not defined
錯誤。
看來您有很多問題。 請嘗試以下操作:
src / animal.coffee:
class Animal
constructor: (@name) ->
move: (meters) ->
console.log @name + " moved #{meters}m."
class Snake extends Animal
move: ->
console.log "Slithering..."
super 5
module.exports.Snake = Snake
測試/animalTest.coffee
should = require "should"
{ Snake } = require "../src/animal"
describe 'sample', ->
it 'should pass', ->
snake = new Snake "Venomous python"
snake.should.be.an.instanceOf(Snake)
然后運行(從項目根目錄開始):
mocha --compilers coffee:coffee-script/register tests
因此,這完全是奇怪的。 一個解釋是非常受歡迎的! 這就是我所做的,測試通過了:
should = require ("../npm/node_modules/should/should")
{ Snake } = require ("../src/Animal.coffee")
describe 'sample', ->
it 'should pass', ->
(new Snake "Venomous python").should.be.an.instanceOf(Snake)
使用CoffeeScript 1.8.0和Mocha 1.21.4時,我的測試用例隨機中斷。
可以手動批准該測試用例,但是它在mocha中失敗,並帶有諸如“ undefined function ...”之類的奇怪異常。 無法復制長久失敗,異常,堆棧跟蹤...
解決方法:
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