Backbone.Deferred.Model：为什么unittest没有运行？

这是有问题的代码。Backbone.Deferred.Model：为什么unittest没有运行？

define (require) -> 

    Backbone = require 'backbone' 

    require 'backbone-deferred' 

    class Data extends Backbone.Deferred.Model 

    urlRoot: 'data' 

    parse: (resp) -> 
     resp.record or resp 

    isValid: -> 
     @get 'valid' 

    # Newly introduced 
    dataUrl: -> 
     @get('data_url')?.replace /abc/, ''

这里是单元测试

define (require) -> 

    Data   = require 'model/Data' 

    describe 'dataurl', -> 

    describe 'No change', -> 
     data = new Data id: '123', name: 'Dummy', data_url: 'https://m/a.png' 
     expect(data.dataUrl()).to.equal('https://m/a.png')

出于某种原因，测试并非由摩卡运行。

我使用这个网站来驱动测试

<!DOCTYPE html> 
<html> 
<head> 
    <meta charset="utf-8"> 
    <title>Mocha Tests</title> 
    <link rel="stylesheet" href="../bower_components/mocha/mocha.css" type="text/css" media="screen" title="Tests for {%= name %}" charset="utf-8"> 
</head> 
<body> 
    <div id="mocha"></div> 
    <script src="../bower_components/mocha/mocha.js" type="text/javascript" charset="utf-8"></script> 
    <script src="../bower_components/chai/chai.js" type="text/javascript" charset="utf-8"></script> 

    <script src="../bower_components/requirejs/require.js" type="text/javascript" charset="utf-8"></script> 
    <!-- Requirejs configuration --> 
    <script src="../temp/local/scripts/config.js" type="text/javascript" charset="utf-8"></script> 

    <script type="text/javascript" charset="utf-8"> 
    // Dumping console messages to /dev/null to avoid parsing error 
    // when grunt:mocha_phantomjs is run 
    if (navigator.userAgent.indexOf('PhantomJS') >= 0) { 
     var log = console.log 
     console.log = function(message) { 
     if (message.indexOf('<') === 0) { 
      log.apply(this, Array.prototype.slice.call(arguments)) 
     } 
     } 
    } 

    // Mixpanel is not loaded for unit testing. 
    // Redirecting mixpanel to /dev/null. 
    window.mixpanel = { 
     track: function() {} 
    }; 

    require.config({ 
     baseUrl: "../temp/local/scripts", 
     shim: { 
     'chai-jquery': { 
      deps: ['jquery'] 
     }, 
     'sinon': { 
      exports: 'sinon' 
     } 
     }, 
     paths: { 
     // Aliasing path to find the specs 
     'specs': '../../specs', 

     'sinon'  : '../../../bower_components/sinon/lib/sinon', 
     'sinon-chai' : '../../../bower_components/sinon-chai/lib/sinon-chai', 
     'chai-jquery': '../../../bower_components/chai-jquery/chai-jquery', 
     'handlebars' : '../../../bower_components/handlebars/handlebars', 

     } 
    }); 

    runTests = function() { 

     // Ensuring that jquery and chai-jquery are loaded 
     require(
      ['jquery', 'chai-jquery', 'sinon-chai', 'handlebars'], 
      function($, jqueryChai, sinonChai, Handlebars) { 
     // Registering testing style in globals for easy access 
     window.expect = chai.expect; 
     chai.use(jqueryChai); 
     chai.use(sinonChai) 

     mocha.setup({ 
      ui: 'bdd', 
      ignoreLeaks: true 
     }); 

     // Protect from barfs 
     console = window.console || function() {}; 

     // Don't track 
     window.notrack = true; 

     // Helper... not really needed but in case we want to do something fancy 
     var runMocha = function() { 
      mocha.run(); 
     }; 

     require([ 
      // Many other tests; removed for clarity 
      'specs/data.spec' 
     ], function() { 
      // For xUnit and code coverage reports, we run the tests 
      // using mocha-phantomjs runner. 
      if (window.mochaPhantomJS) { 
      mochaPhantomJS.run(); 
      } 
      else { 
      mocha.run(); 
      } 
     }); 
     }); 

    } 

    </script> 
</body> 
</html>

这里是繁重的测试任务的输出

Running "mocha:default" (mocha) task 
Testing: test/index.html 


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    ․․․․․․․․․․․ 

    1081 passing (9s) 

>> 1081 passed! (9.17s)

我的问题是：

1）测试的数目是在添加新测试后完全改变。新测试没有被拿起的可能原因是什么？

2）如果我故意在我的单元测试引入误差就会造成这在测试失败的情况下：

Warning: PhantomJS timed out, possibly due to a missing Mocha run() call. Use --force to continue.

我相信这是关系到测试，但没有足够的信息来诊断问题。我如何开启日志记录或获取更多信息？

来源

2015-06-12 Anthony Kong

你的测试用例应该用it函数，而不是describe（这是用来测试分组）

define (require) ->  
    Data = require 'model/Data'  
    describe 'dataurl', ->  
    it 'No change', -> 
     data = new Data id: '123', name: 'Dummy', data_url: 'https://m/a.png' 
     expect(data.dataUrl()).to.equal('https://m/a.png')

我创造了this jdfiddle所以你可以看到你的原始定义的不同定义。

如果在测试中引入错误，如果在it函数内没有定义测试，则会影响整个测试运行。您可以在other fiddle（您会注意到第二次测试在错误定义的测试错误后不运行）

来源

2015-06-12 13:30:42

Backbone.Deferred.Model：为什么unittest没有运行？

回答

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