Non Static driver and screenshot listener in TestNG

[talon]

Hi,

I have a testcase that will invoke the driver as a non static variable. I also have added screenshot listener in my test case. When the test case fails The control is automatically sent to the screenshot listener.. however since my driver is a NON-STATIC variable it could not be accessed in the screenshot listener. So I get nullpointer exception.

Is there a way to globally access the non-static driver in the screenshot listener?

Pls help. Thanks!

[Krishnan Mahadevan]

Maybe you should take a look at ThreadLocal 

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Thanks & Regards
Krishnan Mahadevan

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[Praveen Bhasker]

Hi Krishnan,

I consider all your solutions in the forum as extremely useful one. If you have any implemented code I kindly request you to pls share it. I did some googling and read something about ThreadLocal. but couldn't figure out much. Pls help me. Thanks a lot!

Thanks,

Praveen

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[Krishnan Mahadevan]

This should be a good start : 

https://github.com/freynaud/testng-support/blob/master/src/main/java/org/openqa/selenium/support/testng/WebTestSession.java

[Praveen Bhasker]

Thanks Krishnan. 

Until today I was having the driver variable as a static one so the screenshot listener worked perfectly during a failure. From today we wanted to implement parallel test execution and I faced problem due to the static driver variable. So when I made the driver as non-static screenshot listener got messed up.

So do you think implementing ThreadLocal will help me resolve both the aforementioned conditions?

Thanks,

Praveen

[Krishnan Mahadevan]

Yes it would. ThreadLocal gurantees that every thread would get its own copy of an object and there are no race conditions. 

Initialising the ThreadLocal variable can be done in beforeInvocation()

[Praveen Bhasker]

Awesome. Like always you helped me :)