Warning when non-standard-name tsconfig file used - TS151001

🐛 Bug Report

Warning when non-standard-name tsconfig file is used. This does not happen when using the standard tsconfig.json file name.

➜  yarn test
yarn run v1.22.5
$ jest

ts-jest[config] (WARN) message TS151001: If you have issues related to imports, you should consider setting `esModuleInterop` to `true` in your TypeScript configuration file (usually `tsconfig.json`).
See https://blogs.msdn.microsoft.com/typescript/2018/01/31/announcing-typescript-2-7/#easier-ecmascript-module-interoperability for more information.

 PASS  ./main.test.ts
  Something
    ✓ passes (2 ms)

Test Suites: 1 passed, 1 total
Tests:       1 passed, 1 total
Snapshots:   0 total
Time:        1.715 s
Ran all test suites.
✨  Done in 2.57s.

To Reproduce

1. Init a project npm init

2. Set node to latest LTS echo v14.17.2 > .nvmrc nvm install v14.17.2 nvm use

3. Install minimum set of latest packages (as of 05 Jul 2021) yarn add -D typescript@4.3.4 jest@27.0.6 ts-jest@27.0.3 @types/jest@26.0.23

4. Create a test file with an always-true assertion

   Example test file

   main.test.ts

   describe('Something', () => {
     it('passes', () => {
       expect(true).toEqual(true)
     })
   })
   

5. Add test command to package.json scripts "test": "jest"

6. Add non-standard-name tsconfig file with "esModuleInterop": true

   Example TSConfig file

   tsconfig.test.json

   {
     "compilerOptions": {
        "target": "es6",
        "module": "commonjs",
        "rootDir": "./src",
        "strict": true,
        "noImplicitAny": true,
        "esModuleInterop": true
     }
   }
   

7. Add jest config referencing this tsconfig

   Example Jest config file

   jest.config.json

   {
     "preset": "ts-jest",
     "testEnvironment": "node",
     "globals": {
       "ts-jest": {
         "tsConfig": "./tsconfig.test.json"
       }
     }
   }
   

8. Reproduce yarn test

Expected behavior

No warning:

➜  yarn test
yarn run v1.22.5
$ jest
 PASS  ./main.test.ts
  Something
    ✓ passes (2 ms)

Test Suites: 1 passed, 1 total
Tests:       1 passed, 1 total
Snapshots:   0 total
Time:        1.715 s
Ran all test suites.
✨  Done in 2.57s.

Link to repo (highly encouraged)

https://github.com/JamesPeiris/ts-jest-warning

Debug log:

Too big for Github comment character limit - pushed to the linked repo: https://github.com/JamesPeiris/ts-jest-warning/blob/master/ts-jest.log

Snippet:

{"context":{"logLevel":20,"namespace":"config","package":"ts-jest","version":"27.0.3"},"message":"babel is disabled","sequence":14,"time":"2021-07-05T11:43:10.158Z"}
{"context":{"diagnostics":{"exclude":[],"ignoreCodes":[6059,18002,18003],"pretty":true,"throws":true},"logLevel":20,"namespace":"config","package":"ts-jest","version":"27.0.3"},"message":"normalized diagnostics config via ts-jest option","sequence":15,"time":"2021-07-05T11:43:10.158Z"}
{"context":{"diagnosticCodes":[151001],"diagnosticText":"\u001b[94mmessage\u001b[0m\u001b[90m TS151001: \u001b[0mIf you have issues related to imports, you should consider setting `esModuleInterop` to `true` in your TypeScript configuration file (usually `tsconfig.json`). See https://blogs.msdn.microsoft.com/typescript/2018/01/31/announcing-typescript-2-7/#easier-ecmascript-module-interoperability for more information.\n","logLevel":20,"namespace":"TSError","package":"ts-jest","version":"27.0.3"},"message":"created new TSError","sequence":16,"time":"2021-07-05T11:43:10.165Z"}
{"context":{"error":{"diagnosticCodes":[151001],"diagnosticText":"\u001b[94mmessage\u001b[0m\u001b[90m TS151001: \u001b[0mIf you have issues related to imports, you should consider setting `esModuleInterop` to `true` in your TypeScript configuration file (usually `tsconfig.json`). See https://blogs.msdn.microsoft.com/typescript/2018/01/31/announcing-typescript-2-7/#easier-ecmascript-module-interoperability for more information.\n"},"logLevel":40,"namespace":"config","package":"ts-jest","version":"27.0.3"},"message":"\u001b[94mmessage\u001b[0m\u001b[90m TS151001: \u001b[0mIf you have issues related to imports, you should consider setting `esModuleInterop` to `true` in your TypeScript configuration file (usually `tsconfig.json`). See https://blogs.msdn.microsoft.com/typescript/2018/01/31/announcing-typescript-2-7/#easier-ecmascript-module-interoperability for more information.","sequence":17,"time":"2021-07-05T11:43:10.167Z"}
{"context":{"logLevel":20,"namespace":"config","package":"ts-jest","tsconfig":{"compileOnSave":false,"errors":[{"category":3,"code":151001,"messageText":"If you have issues related to imports, you should consider setting `esModuleInterop` to `true` in your TypeScript configuration file (usually `tsconfig.json`). See https://blogs.msdn.microsoft.com/typescript/2018/01/31/announcing-typescript-2-7/#easier-ecmascript-module-interoperability for more information."}],"fileNames":["/Users/james.peiris/Dev/ts-jest-warning/main.test.ts"],"options":{"allowSyntheticDefaultImports":true,"declaration":false,"inlineSourceMap":false,"inlineSources":true,"module":1,"noEmit":false,"removeComments":false,"sourceMap":true,"target":2},"raw":{"compileOnSave":false,"compilerOptions":{}},"typeAcquisition":{"enable":false,"exclude":[],"include":[]},"wildcardDirectories":{"/users/james.peiris/dev/ts-jest-warning":1}},"version":"27.0.3"},"message":"normalized typescript config via ts-jest option","sequence":18,"time":"2021-07-05T11:43:10.167Z"}
{"context":{"customTransformers":{"after":[],"afterDeclarations":[],"before":[{}]},"logLevel":20,"namespace":"config","package":"ts-jest","version":"27.0.3"},"message":"normalized custom AST transformers via ts-jest option","sequence":19,"time":"2021-07-05T11:43:10.168Z"}
{"context":{"cacheDirectory":"/private/var/folders/kj/22ywg46s75j72xsg2n1gxtt0_48bvj/T/jest_5mfnn5/ts-jest/0f/921a7d71e961b755b43a0d703c6193eb39e24d","logLevel":20,"namespace":"config","package":"ts-jest","version":"27.0.3"},"message":"will use file caching","sequence":20,"time":"2021-07-05T11:43:10.192Z"}

envinfo

System:
    OS: Mac OSX 10.14.6 (Mojave)
    Node version: 14.17.2

Npm packages:
    jest: 27.0.6
    ts-jest: 27.0.3
    typescript: 4.3.4

[zachstence]

@JamesPeiris Try using tsconfig with a lowercase ‘c’ instead of tsConfig.

The source code uses a tsconfig: https://github.com/kulshekhar/ts-jest/blob/master/src/types.ts#L66 While the docs use tsConfig: https://huafu.github.io/ts-jest/user/config/tsConfig

[ahnpnl]

The link to doc is not correct 😃 it should be https://kulshekhar.github.io/ts-jest