A worker process has failed to exit gracefully and has been force exited. This is likely caused by tests leaking due to improper teardown. Try running with --detectOpenHandles to find leaks. Active timers can also cause this, ensure that .unref() was called on them. Test Suites: 1 failed, 5 passed, 6 total Tests: 8 passed, 8 total Snapshots: 0 total Time: 33.761 s Ran all test suites. Cleaning up file based variables ERROR: Job failed: exit code 1