Count of all test cases in a Sprint where a sub-task ("xyz") is in "Done" status in each User Story

[SSO]

Please help me to find the JQL to fetch the count of all the test cases (issue of type Test) under all User Stories in a Sprint where a particular sub task ("xyz") is in "Done" status in each User Story.

Thanks

[Alexander Bondarev]

Hi, @SSO !

You can't write this JQL out-of-box. You need any apps(plugins).

Do you have any apps(plugins) in your Jira Cloud?

[SSO]

Could you please guide me which app(plugin) is useful for this requirement. Also the steps to be performed (We use Zephyr tool for managing Test Cases).

Many Thanks