Jest 按特定路径运行测试

Question

currently I am using the standard testRegex logic to run my tests

  "jest": {
    "moduleFileExtensions": [
      "ts",
      "js"
    ],
    "transform": {
      "^.+\\.ts?$": "<rootDir>/node_modules/ts-jest/preprocessor.js",
      "^.+\\.js?$": "babel-jest"
    },
    "testRegex": "/tests/.*\\.(ts|js)$"
  }

But I would like to split them using specific paths

test-client   "testRegex": "/tests/client/.*\\.(ts|js)$"
test-server   "testRegex": "/tests/server/.*\\.(ts|js)$"

I see that there is a, option --runTestsByPath. but I cannot find any example of it

feedback welcome

UPDATE

I tried to add the script

"test-client": "jest   --runTestsByPath \"tests/client/\""

with a test file : tests/client/test.spec.js

but got an error :

$ jest   --runTestsByPath "tests/client/"
No tests found
No files found in /Users/../myapp.
Make sure Jest's configuration does not exclude this directory.

Answer 1

I use the follow command and works:

jest "/client"

You can see the Jest documentation here: https://jestjs.io/docs/en/22.x/cli

Answer 2

jest someDirectory --collectCoverageFrom=**/someDirectory/**/*.js

Answer 3

--runTestsByPath needs the leading './'

I have got this working for myself:

jest --runTestsByPath "./directory/testFile.js"

and

jest --runTestsByPath "./directory"

Note I'm on WSL1, but should be the same for most flavours of linux.