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5 Replies Last post: Jul 7, 2008 5:35 AM by jeff  
jeff Beginner
jeff
6 posts since
Jun 30, 2008
Currently Being Moderated

Jul 4, 2008 8:36 AM

How do debug Javascript code from a Selenium Java Junit test?

Hello all,

 

I'm being driven nuts by Selenium at the moment, I hope someone out there can help me.

 

My test run fine from the Selenium IDE, but not when calling it directly from Java code.

 

I know the problem is somewhere in my JS code. Specifically when making a calls to...

 

getElementsByName

and

getElementById

 

They both result in the method calls never returning.

 

I think its a combination of cross script browser problem & selenium starting up my app in a frame.

(and maybe Selenium trying to be smart and find my property in a sub frame and looping off to infinite)

 

I would love to use a JS debugger like Venkman, but its not enabled as a Add-on when Firefox is started up from Java.

So how do I enable it?

 

Thanks

Jeff Porter

Andras Hatvani Almighty
Andras Hatvani
567 posts since
Oct 16, 2006
Currently Being Moderated
1. Jul 5, 2008 3:20 AM in response to: jeff
Re: How do debug Javascript code from a Selenium Java Junit test?

Hello,

 

the thread title doesn't match your real problem, because it's about using prepared

Firefox profiles.

 

"-firefoxProfileTemplate <dir>: normally, we generate a fresh empty Firefox profile every time we launch. You can specify a directory to make us copy your profile directory instead."

as in http://selenium-rc.openqa.org/options.html.

 

Andras

p.s. It would be nice if you could use the search feature of the forum as this question has been posted very often.

jeff Beginner
jeff
6 posts since
Jun 30, 2008
Currently Being Moderated
2. Jul 7, 2008 3:16 AM in response to: Andras Hatvani
Re: How do debug Javascript code from a Selenium Java Junit test?

Hi Andras,

 

Thanks for the response.

I did have a quick search for "firefoxProfileTemplate" but nothing came back.

 

Thanks for the advice though! You're a star.

 

Jeff

jeff Beginner
jeff
6 posts since
Jun 30, 2008
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3. Jul 7, 2008 4:29 AM in response to: jeff
Re: How do debug Javascript code from a Selenium Java Junit test?

My final thoughts on my problem.

 

The problem occurs because Selenium starts my application in a frame when started from Java code.

 

My JS code trys to be smart an loop over all frames looking for a specific property.  The code is...

 

currFrame.document.getElementsByName("synchronizeRequest")

 

In this case currFrame is "top", which is the Selenium master frame and I don't have crossdomain privilages to access this frame.

 

Trying to call getElementsByName causes a "Permission denied to get property" exception in the Javascript.

 

To solve this I have added an extra check. So that I catch the exception and carry on. i.e.

 

try {
            // If window outside out domain, then except will occur. i.e. selenium frame.
            currFrame.name;
      } catch (err) {
            return false;
      }
      synchroField = currFrame.document.getElementsByName("synchronizeRequest");

 

 

To debug the Javascript I set a program arguement in Eclipse when starting the Selenium Server.

The argument...

 

-firefoxProfileTemplate "C:/Documents and Settings/porterj/Application Data/Mozilla/Firefox/Profiles/nbyn5kon.default/"

 

I hope this information might help someone else out, or me in 6 months when I'm having a 'senior moment'

 

Thanks

Jeff Porter

Andras Hatvani Almighty
Andras Hatvani
567 posts since
Oct 16, 2006
Currently Being Moderated
4. Jul 7, 2008 5:14 AM in response to: jeff
Re: How do debug Javascript code from a Selenium Java Junit test?

You should not get this error if you use Selenium via Chrome (*chrome).

 

Andras

jeff Beginner
jeff
6 posts since
Jun 30, 2008
Currently Being Moderated
5. Jul 7, 2008 5:35 AM in response to: Andras Hatvani
Re: How do debug Javascript code from a Selenium Java Junit test?

Hi Andras,

 

I thought I was.

 

TestClient.java

 

public void setUp() throws Exception {
        setUp("http://localhost:8080/store", "*chrome");
    }

 

Jeff

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