Can I filter testscripts by those that are NOT linked to a test suite using the REST API?
As the title says, I'm trying to filter the results of a test script query to only include scripts that are not linked to a test suite. I know I can filter by the test suite (testsuite/href@=), but haven't been able to figure out if there's a way to set this filter equal to some kind of 'null' or 'undefined' value to only return unlinked scripts.
I've tried setting testsuite/href@= to 'undefined' and empty string, without and without quote marks, as well as using not equal to '*' wildcard, but to no avail.
Bascially, does anyone know if it's possible to filter artifacts that do not have a specific defined attribute?
Thanks in advance!