[xwiki-devs] [Proposal] Best practice: tests must not output anything outside of the target directory

Hi devs, I was pretty sure that this was discussed before but I can’t find it so I’m posting it again since I noticed that we continue to have tests (and even add new ones) that use the OS tmp directory to output test data. Tests must not generate anything outside of the target/ directory as this will cause several problems: * not clean generated test data after the test * create a state that can make other tests fail * generate errors in jenkins since jenkins monitors created files and doesn't allow to remove files outside of the worskspace WDYT? If ok I’ll add it to https://dev.xwiki.org/xwiki/bin/view/Community/Testing/JavaUnitTesting/#HBe… Thanks -Vincent PS: Ideally we should have a automatic verification in the build but it doesn’t seem easy to implement, so right now, I’m only proposing it as a best practice.