differentiate tests of optional behavior from undefined behavior#361

Closed

notEthan wants to merge 1 commit intojson-schema-org:mainfrom

notEthan:undefined_behavior

Commits on Feb 3, 2021

move test of undefined behavior (ref of unknown keyword) from /tests/draft2019-09/optional to new directory /tests_undefined/draft2019-09
notEthan
committed