@Mayakp.wiki You should now be a member of the data-qa group on Test Wikipedia. You can verify this by viewing your current groups here: https://test.wikipedia.org/w/api.php?action=query&meta=userinfo&uiprop=groups
Please note that, in contrast to most event types, the session length instrument is active anytime you have an active session on the wikis, even without any action by you. The test.qa = 1 artifact will be emitted for session tick events generated on Test Wikipedia beginning as soon as your browser receives the updated script following tomorrow's planned MediaWiki deployment.
Please note that it may take some time for your browser to receive the updated script if an older version has not yet aged out of our edge caching infrastructure. I will follow up after tomorrow's deployment to confirm that the updated version of the instrument is being sent to clients. Also please note that the tick count is shared among browsers and across sites using cookies, so that ticks that are part of the same session but emitted when you are active on a wiki other than Test Wikipedia will not contain the test.qa = 1 artifact.
I am currently also a member of the data-qa group on Test Wikipedia but will plan to revoke my own membership momentarily to avoid polluting your testing data.
Happy testing!