How can I see tests that do not have a test execution / run assigned?

[Mel]

Hi

I have had a look at the forums for this and there were some old posts but I don't see a solution using JQL (only ZQL which we don't use).

I am trying to see a list of test cases that are not linked to a test run (and it seems test executions are not an issue type so I can't use a Filter query).

One of the posts mentions using "issue in testsWithoutExecution() and project = "Project Name""  but this throws the following error

• Unable to find JQL function 'testsWithoutExecution()'.

Is there some other way to find what I need?

Thanks

Mel