首页 \ 问答 \ 清理量角器堆栈跟踪(Cleaning up Protractor stack trace)

清理量角器堆栈跟踪(Cleaning up Protractor stack trace)

 问题： 
 

 是否有可能清理堆栈跟踪并仅留下相关的框架，从而消除Protractor ， WebDriverJS和Jasmine特有的所有内容？ 
 

 故事： 
 

 让我们执行这个示例测试： 
 

describe("SO test", function () {
    beforeEach(function () {
        browser.get("https://angularjs.org");
    });

    it("should throw a meaningful error", function () {
        element(by.id("not_found")).click();
    });
});

 

 它会因以下堆栈跟踪而失败： 
 

SO test should throw a meaningful error
  - Failed: No element found using locator: By.id("not_found")
      at new bot.Error (/usr/local/lib/node_modules/protractor/node_modules/selenium-webdriver/lib/atoms/error.js:108:18)
      at /usr/local/lib/node_modules/protractor/lib/element.js:676:15
      at [object Object].promise.Promise.goog.defineClass.invokeCallback_ (/usr/local/lib/node_modules/protractor/node_modules/selenium-webdriver/lib/goog/../webdriver/promise.js:1337:14)
      at [object Object].promise.ControlFlow.goog.defineClass.goog.defineClass.abort_.error.executeNext_.execute_ (/usr/local/lib/node_modules/protractor/node_modules/selenium-webdriver/lib/goog/../webdriver/promise.js:2776:14)
      at [object Object].promise.ControlFlow.goog.defineClass.goog.defineClass.abort_.error.executeNext_ (/usr/local/lib/node_modules/protractor/node_modules/selenium-webdriver/lib/goog/../webdriver/promise.js:2758:21)
      at goog.async.run.processWorkQueue (/usr/local/lib/node_modules/protractor/node_modules/selenium-webdriver/lib/goog/async/run.js:124:15)
      at process._tickCallback (node.js:377:9)
  Error
      at [object Object].ElementArrayFinder.applyAction_ (/usr/local/lib/node_modules/protractor/lib/element.js:382:21)
      at [object Object].ElementArrayFinder.(anonymous function) [as click] (/usr/local/lib/node_modules/protractor/lib/element.js:78:17)
      at [object Object].ElementFinder.(anonymous function) [as click] (/usr/local/lib/node_modules/protractor/lib/element.js:711:7)
      at Object.<anonymous> (/Users/user/job/project/test/e2e/specs/test.spec.js:9:37)
      at /usr/local/lib/node_modules/protractor/node_modules/jasminewd2/index.js:96:23
      at [object Object].promise.Promise.goog.defineClass.constructor (/usr/local/lib/node_modules/protractor/node_modules/selenium-webdriver/lib/goog/../webdriver/promise.js:1056:7)
      at new wrappedCtr (/usr/local/lib/node_modules/protractor/node_modules/selenium-webdriver/lib/goog/base.js:2468:26)
      at controlFlowExecute (/usr/local/lib/node_modules/protractor/node_modules/jasminewd2/index.js:82:18)
      at [object Object].promise.ControlFlow.goog.defineClass.goog.defineClass.abort_.error.executeNext_.execute_ (/usr/local/lib/node_modules/protractor/node_modules/selenium-webdriver/lib/goog/../webdriver/promise.js:2776:14)
      at [object Object].promise.ControlFlow.goog.defineClass.goog.defineClass.abort_.error.executeNext_ (/usr/local/lib/node_modules/protractor/node_modules/selenium-webdriver/lib/goog/../webdriver/promise.js:2758:21)
  From: Task: Run it("should throw a meaningful error") in control flow
      at Object.<anonymous> (/usr/local/lib/node_modules/protractor/node_modules/jasminewd2/index.js:81:14)
      at /usr/local/lib/node_modules/protractor/node_modules/jasminewd2/index.js:18:5
      at [object Object].promise.Promise.goog.defineClass.invokeCallback_ (/usr/local/lib/node_modules/protractor/node_modules/selenium-webdriver/lib/goog/../webdriver/promise.js:1337:14)
      at [object Object].promise.ControlFlow.goog.defineClass.goog.defineClass.abort_.error.executeNext_.execute_ (/usr/local/lib/node_modules/protractor/node_modules/selenium-webdriver/lib/goog/../webdriver/promise.js:2776:14)
      at [object Object].promise.ControlFlow.goog.defineClass.goog.defineClass.abort_.error.executeNext_ (/usr/local/lib/node_modules/protractor/node_modules/selenium-webdriver/lib/goog/../webdriver/promise.js:2758:21)
      at goog.async.run.processWorkQueue (/usr/local/lib/node_modules/protractor/node_modules/selenium-webdriver/lib/goog/async/run.js:124:15)
  From asynchronous test: 
  Error
      at Suite.<anonymous> (/Users/user/job/project/test/e2e/specs/test.spec.js:8:5)
      at Object.<anonymous> (/Users/user/job/project/test/e2e/specs/test.spec.js:3:1)
      at Module._compile (module.js:425:26)
      at Object.Module._extensions..js (module.js:432:10)
      at Module.load (module.js:356:32)

 

 正如您所看到的，在测试中找到错误实际发生的位置并不容易。 它隐藏在由Protractor ， WebDriverJS和Jasmine堆栈框架覆盖的堆栈跟踪内部。 这使得调试和开发端到端测试变得困难。 
 

 期望的输出： 
 

SO test should throw a meaningful error
  - Failed: No element found using locator: By.id("not_found")
      at Object.<anonymous> (/Users/user/job/project/test/e2e/specs/test.spec.js:9:37)
  From asynchronous test: 
  Error
      at Suite.<anonymous> (/Users/user/job/project/test/e2e/specs/test.spec.js:8:5)
      at Object.<anonymous> (/Users/user/job/project/test/e2e/specs/test.spec.js:3:1)
      at Module._compile (module.js:425:26)
      at Object.Module._extensions..js (module.js:432:10)
      at Module.load (module.js:356:32)
      at Function.Module._load (module.js:311:12)

 

 使用protractor 3.0.0和jasmine2 。 
 

 

 在mocha世界中，有一个相关的mocha-clean软件包可以过滤掉来自node_modules和mocha本身的所有内容，留下一个易于阅读的干净堆栈跟踪。 

The Question:
 

Is it possible to clean up the stack trace and leave only relevant frames eliminating everything Protractor, WebDriverJS and Jasmine specific?
 

The Story:
 

Let's execute this example test:
 

describe("SO test", function () {
    beforeEach(function () {
        browser.get("https://angularjs.org");
    });

    it("should throw a meaningful error", function () {
        element(by.id("not_found")).click();
    });
});

 

It would fail with a following stacktrace:
 

SO test should throw a meaningful error
  - Failed: No element found using locator: By.id("not_found")
      at new bot.Error (/usr/local/lib/node_modules/protractor/node_modules/selenium-webdriver/lib/atoms/error.js:108:18)
      at /usr/local/lib/node_modules/protractor/lib/element.js:676:15
      at [object Object].promise.Promise.goog.defineClass.invokeCallback_ (/usr/local/lib/node_modules/protractor/node_modules/selenium-webdriver/lib/goog/../webdriver/promise.js:1337:14)
      at [object Object].promise.ControlFlow.goog.defineClass.goog.defineClass.abort_.error.executeNext_.execute_ (/usr/local/lib/node_modules/protractor/node_modules/selenium-webdriver/lib/goog/../webdriver/promise.js:2776:14)
      at [object Object].promise.ControlFlow.goog.defineClass.goog.defineClass.abort_.error.executeNext_ (/usr/local/lib/node_modules/protractor/node_modules/selenium-webdriver/lib/goog/../webdriver/promise.js:2758:21)
      at goog.async.run.processWorkQueue (/usr/local/lib/node_modules/protractor/node_modules/selenium-webdriver/lib/goog/async/run.js:124:15)
      at process._tickCallback (node.js:377:9)
  Error
      at [object Object].ElementArrayFinder.applyAction_ (/usr/local/lib/node_modules/protractor/lib/element.js:382:21)
      at [object Object].ElementArrayFinder.(anonymous function) [as click] (/usr/local/lib/node_modules/protractor/lib/element.js:78:17)
      at [object Object].ElementFinder.(anonymous function) [as click] (/usr/local/lib/node_modules/protractor/lib/element.js:711:7)
      at Object.<anonymous> (/Users/user/job/project/test/e2e/specs/test.spec.js:9:37)
      at /usr/local/lib/node_modules/protractor/node_modules/jasminewd2/index.js:96:23
      at [object Object].promise.Promise.goog.defineClass.constructor (/usr/local/lib/node_modules/protractor/node_modules/selenium-webdriver/lib/goog/../webdriver/promise.js:1056:7)
      at new wrappedCtr (/usr/local/lib/node_modules/protractor/node_modules/selenium-webdriver/lib/goog/base.js:2468:26)
      at controlFlowExecute (/usr/local/lib/node_modules/protractor/node_modules/jasminewd2/index.js:82:18)
      at [object Object].promise.ControlFlow.goog.defineClass.goog.defineClass.abort_.error.executeNext_.execute_ (/usr/local/lib/node_modules/protractor/node_modules/selenium-webdriver/lib/goog/../webdriver/promise.js:2776:14)
      at [object Object].promise.ControlFlow.goog.defineClass.goog.defineClass.abort_.error.executeNext_ (/usr/local/lib/node_modules/protractor/node_modules/selenium-webdriver/lib/goog/../webdriver/promise.js:2758:21)
  From: Task: Run it("should throw a meaningful error") in control flow
      at Object.<anonymous> (/usr/local/lib/node_modules/protractor/node_modules/jasminewd2/index.js:81:14)
      at /usr/local/lib/node_modules/protractor/node_modules/jasminewd2/index.js:18:5
      at [object Object].promise.Promise.goog.defineClass.invokeCallback_ (/usr/local/lib/node_modules/protractor/node_modules/selenium-webdriver/lib/goog/../webdriver/promise.js:1337:14)
      at [object Object].promise.ControlFlow.goog.defineClass.goog.defineClass.abort_.error.executeNext_.execute_ (/usr/local/lib/node_modules/protractor/node_modules/selenium-webdriver/lib/goog/../webdriver/promise.js:2776:14)
      at [object Object].promise.ControlFlow.goog.defineClass.goog.defineClass.abort_.error.executeNext_ (/usr/local/lib/node_modules/protractor/node_modules/selenium-webdriver/lib/goog/../webdriver/promise.js:2758:21)
      at goog.async.run.processWorkQueue (/usr/local/lib/node_modules/protractor/node_modules/selenium-webdriver/lib/goog/async/run.js:124:15)
  From asynchronous test: 
  Error
      at Suite.<anonymous> (/Users/user/job/project/test/e2e/specs/test.spec.js:8:5)
      at Object.<anonymous> (/Users/user/job/project/test/e2e/specs/test.spec.js:3:1)
      at Module._compile (module.js:425:26)
      at Object.Module._extensions..js (module.js:432:10)
      at Module.load (module.js:356:32)

 

As you can see, it's not easy to find on which line in the test the error actually happened. It's hidden somewhere inside the stack trace covered by Protractor, WebDriverJS and Jasmine stack frames. This makes it difficult to debug and develop end-to-end tests.
 

Desired output:
 

SO test should throw a meaningful error
  - Failed: No element found using locator: By.id("not_found")
      at Object.<anonymous> (/Users/user/job/project/test/e2e/specs/test.spec.js:9:37)
  From asynchronous test: 
  Error
      at Suite.<anonymous> (/Users/user/job/project/test/e2e/specs/test.spec.js:8:5)
      at Object.<anonymous> (/Users/user/job/project/test/e2e/specs/test.spec.js:3:1)
      at Module._compile (module.js:425:26)
      at Object.Module._extensions..js (module.js:432:10)
      at Module.load (module.js:356:32)
      at Function.Module._load (module.js:311:12)

 

Using protractor 3.0.0 and jasmine2.
 

 

In mocha world, there is a relevant mocha-clean package that filters out everything coming from inside node_modules and mocha itself leaving a clean stack trace that is easy to read.

原文：https://stackoverflow.com/questions/34049365
更新时间：2023-12-28 11:12

最满意答案

 它不能是你的问题或错误的来源，但我认为所有出现的行[： - 2]都应该被行[： - 1]取代，如果你想要除了一个所有索引（Python不包括索引） row[begin:end]类的范围内给出的row[begin:end] 
 

 你应该有： 
 

y_ = tf.placeholder(tf.float32,[None,numberOFClasses])
...
sess.run(train_step,feed_dict={x:batch_xs[i],y_:np.reshape(batch_ys[i],(batchSize, numberOFClasses ))})
...
print(sess.run(accuracy,feed_dict={x:batch_txs[i],y_:np.reshape(batch_tys[i],(batchSize, numberOFClasses ))}))

 

 无论如何，您应该batch_size != numberOFClasses使用batch_size != numberOFClasses ，因为它会抛出一个错误，您可以使用它来理解代码中的错误。 如果不这样做，则会丢失异常消息，但错误仍然存​​在，隐藏（您的网络仍然无法学习您想要的内容）。 当你得到重新检查问题的错误外观，并试图理解为什么（看看形状是什么，应该是什么） 

It can't be the source of your problem or errors, but I think all occurrences of row[:-2] should be replaced by row[:-1], if you want to take all indices but one (Python excludes the index end given in a range like row[begin:end]) 
 

You should have:
 

y_ = tf.placeholder(tf.float32,[None,numberOFClasses])
...
sess.run(train_step,feed_dict={x:batch_xs[i],y_:np.reshape(batch_ys[i],(batchSize, numberOFClasses ))})
...
print(sess.run(accuracy,feed_dict={x:batch_txs[i],y_:np.reshape(batch_tys[i],(batchSize, numberOFClasses ))}))

 

Anyway, you should definetly use batch_size != numberOFClasses, because it throws an error that you can use to understand what is wrong in your code. If you don't, you lose the exception message but the error is still there, hidden (you network still does not learn what you want). When you get the error look which reshapecauses a problem, and try to understand why (look what the shapes are and should be)

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