Spock tests in /web/testsrc not executed

Is there maybe an example somwhere for a working Spock test located in /web/testsrc?

My Spock tests are running if located under /testsrc but not in /web/testsrc

According to docs they should be executed:

https://help.sap.com/viewer/d0224eca81e249cb821f2cdf45a82ace/1811/en-US/c7d9fece26644714b94b4755503a8afd.html

From Intellij Spock tests are working from both locations