mocha.js - 如何订阅 mocha 套件事件？

Question

我希望能够扩展 mocha 测试结果并从可用的 mocha 对象中收听它们。首先，我正在寻找“通过”结果。

看起来他们可能是从套件中订阅的，但我不确定如何......

我尝试了以下我认为会听到我所有测试结束的方法:

var suite = mocha.suite.suites[0];
suite.on("end", function(e){ console.log(e, "mocha - heard the end of my test suite"); } );

我的简单技巧有效但一点也不优雅 - 真的很伤心:

setTimeout(function(){ 
        var passes = $(".passes").find("em").text();
        console.log("ui - heard the end of my test suite - passes: " + passes); 
    }, 500);

Answer 1

我在 mocha.js 中进行了更多挖掘，最后发现 mocha.run() 实际上返回了发出我正在寻找的所有事件的运行者。

我使用的原始示例只有: mocha.run()

因此，如果 Mocha.run() 返回一个运行者，那么我意识到我可以订阅它:

 var runner = mocha.run();
 var testsPassed = 0;

 var onTestPassedHandler = function(e){
      testsPassed++;
      console.log("onTestPassedHandler - title: " + e.title + " - total:" + testsPassed);

    };

 runner.on("pass", onTestPassedHandler);


    /**
     *  These are all the events you can subscribe to:
     *   - `start`  execution started
     *   - `end`  execution complete
     *   - `suite`  (suite) test suite execution started
     *   - `suite end`  (suite) all tests (and sub-suites) have finished
     *   - `test`  (test) test execution started
     *   - `test end`  (test) test completed
     *   - `hook`  (hook) hook execution started
     *   - `hook end`  (hook) hook complete
     *   - `pass`  (test) test passed
     *   - `fail`  (test, err) test failed
     */ 

好多了!