> backend@1.5.1 test
> jest --forceExit modules/document-numbering/document-numbering.service.spec.ts

PASS src/modules/document-numbering/document-numbering.service.spec.ts
  DocumentNumberingService
    √ should be defined (13 ms)
    generateNextNumber
      √ should generate a new number successfully (6 ms)
      √ should throw error when increment fails (12 ms)

Test Suites: 1 passed, 1 total
Tests:       3 passed, 3 total
Snapshots:   0 total
Time:        1.449 s, estimated 2 s
Ran all test suites matching modules/document-numbering/document-numbering.service.spec.ts.
Force exiting Jest: Have you considered using `--detectOpenHandles` to detect async operations that kept running after all tests finished?