Running sls invoke test results in: the "path" argument must be of type string

[ldgarcia]

I am currently using "serverless-jest-plugin": "^0.1.6" and "jest": "^22.2.2".

This is my config in serverless.yml:

custom:
  jest:
     roots:
      - '<rootDir>/tests'   

Running either sls invoke test or sls invoke test --path tests it outputs:

 FAIL  tests/customMessage.test.js
  ● Test suite failed to run

    TypeError [ERR_INVALID_ARG_TYPE]: The "path" argument must be of type string
      
      at assertPath (path.js:28:11)
      at Object.relative (path.js:1259:5)

 FAIL  tests/postConfirmation.test.js
  ● Test suite failed to run

    TypeError [ERR_INVALID_ARG_TYPE]: The "path" argument must be of type string
      
      at assertPath (path.js:28:11)
      at Object.relative (path.js:1259:5)

Test Suites: 2 failed, 2 total
Tests:       0 total
Snapshots:   0 total
Time:        0.483s
Ran all test suites.

[TakaGoto]

+1

[BWoodfork]

Also running into this issue

[hmshoaib]

Any fix for this?

[abhishek-nair]

Hi Any update on this?

[brafdlog]

This seems to be a problem in jest that was solved in version 21.x (see this).
I forked the repo and tried updating the jest version but then some of the tests failed with obscure errors. Tried bumping to version 23 and still didn't work.

[dhm116]

This should be fixed now that Jest v23 is supported (I had been running into the same issues previously).