Viewing outstanding requests

问题:

Is there any way to view what requests Protractor are waiting on? I'm trying to debug flaky state testing, but it is hard to tell whether a button didn't trigger a response or if Protractor didn't bother to wait.

TL;DR: How can I view the remaining promises on the Protractor control flow?

回答1:

The usual approach is to start protractor in a debug mode and put browser.debugger() breakpoint before the problem block of code.

See more information at Debugging Protractor Tests.

---

On the other hand, you can catch the chromedriver service logs that look like:

[2.389][INFO]: COMMAND FindElement {
   "sessionId": "b6707ee92a3261e1dc33a53514490663",
   "using": "css selector",
   "value": "input"
}
[2.389][INFO]: Waiting for pending navigations...
[2.389][INFO]: Done waiting for pending navigations
[2.398][INFO]: Waiting for pending navigations...
[2.398][INFO]: Done waiting for pending navigations
[2.398][INFO]: RESPONSE FindElement {
   "ELEMENT": "0.3367185448296368-1"
}

Might also give you a clue of what is happening.

For this, you need to start chrome with --verbose and --log-path arguments:

{
     browserName: "chrome",
     specs: [
         "*.spec.js"
     ],
     chromeOptions: {
         args: [
             "--verbose",
             "--log-path=/path/to/the/log/file"
         ]
     }
 }

^{(not tested)}

For firefox, you can turn on and view logs by setting webdriver.log.driver and webdriver.log.file firefox profile settings.

See also:

• Monitoring JSON wire protocol logs
• How to change firefox profile