ts-jest fails to work with TS 3.7.2

Issue :

When I’ve updated my deps, the tests stopped working. I have a custom monorepo setup with TS references, Jest projects and ttypescript compiler to rewrite @paths on compile.

 FAIL  packages/core/tests/functional/bar.ts
  ● Test suite failed to run

    Cannot find module '@typegraphql/core' from 'bar.ts'  

    > 1 | import { bar } from "@typegraphql/core";        
        | ^
      2 | 
      3 | describe("bar", () => {
      4 |   it("should return 'bar'", () => {

      at Resolver.resolveModule (../../node_modules/jest-resolve/build/index.js:259:17)

When I’ve downgraded the TS deps to 3.6.3, it works as earlier:

 PASS  tests/functional/bar.ts
 PASS  tests/functional/foo.ts

Test Suites: 2 passed, 2 total
Tests:       2 passed, 2 total

I’ve created two branches that you can checkout and reproduce: https://github.com/MichalLytek/type-graphql/tree/ts-jest-3.7.2 https://github.com/MichalLytek/type-graphql/tree/ts-jest-3.6.3

Expected behavior :

It should work as before upgrade.

Minimal repo :

https://github.com/MichalLytek/type-graphql/tree/ts-jest-3.7.2 https://github.com/MichalLytek/type-graphql/tree/ts-jest-3.6.3

git clone
npm i (on root folder)
npm run bootstrap
cd packages/core
npx jest --watch

[jasonkuhrt]

Hey @MichalLytek 😃

I’m hitting a similar-seeming issue. In my project I do not have this error in VSCode, just from ts-jest.

But It might not be related as I downgraded to 3.6 and still have this error. My case doesn’t seem to be tied to 3.7.

[ahnpnl]

please do these following steps:

• Create a tsconfig.spec.json which extends tsconfig.json
• Specifying ts-jest config to use that tsconfig.spec.json
• Add module: commonjs and target: es2020 (don’t use target: esnext) to this tsconfig.spec.json.
• Clear jest cache
• Rerun tests