Jest + Typescript Error (Code 2)

[rap0so]

Describe the bug

I'm following the doc, but when i run bit test

Steps to Reproduce

1. bit import bit.envs/testers/jest -t
2. bit import -c bit.envs/compilers/typescript
3. bit add src/project --main src/project/index.ts --tests specs/hello-world.spec.ts --id project
4. bit test project

Expected Behavior

Result of tests

Screenshots, exceptions and logs

Specifications

• Bit version: 14.7.1
• Node version: v10.16.3
• npm / yarn version: yarn 1.19.1
• Platform: Windows 10 Pro
• Compiler / Tester (include version): Jest + Ts

Additional context

I've already cleaned the project and restarted from scratch by running git init --reset-hard and still doesnt work

[vatsalm-scaleup]

Hi, I am also facing the same issue., However I am working on React app (with typescript) also I noticed you are using only typescript compiler. In case you also have a react app with typescript you need to use another compiler, react-typescript.

[rap0so]

Hi, I am also facing the same issue., However I am working on React app (with typescript) also I noticed you are using only typescript compiler. In case you also have a react app with typescript you need to use another compiler, react-typescript.

Actually there´s no problem by using typescript compiler, as u can see in the doc it can handle react components too, anyway it happens on both compilers :(

[rapowell9]

Running bit build on the component provides a more detailed error message, and at least for my component it appears to be a problem with the compiler not finding the jest type definitions. "Cannot find name 'test'. Do you need to install type definitions for a test runner? Try npm i @types/jest or npm i @types/mocha." Adding an overrides clause to the bit config to add @types/jest to the dependencies fixed the error

[GiladShoham]

you should add the jest types using the overrides feature. read more here

[wannadream]

@GiladShoham I added overrides but another error pops up.

Here is the reproducible repo. I was simply adding one component and did a 'bit test'. https://github.com/wannadream/bit-dev-bug

Looks like tester cannot find React module?

[GiladShoham]

Try changing the target and module props for the compiler as described in the bottom of this page https://bit.dev/bit/envs/compilers/typescript

[wannadream]

I am using https://bit.dev/bit/envs/compilers/react-typescript, but I believe the TS compiler is the same as I see the dependency. Jest was not configured properly?

[saltman424]

@itaymendel or anyone else, any updates/workarounds?

[alextuppen]

@itaymendel I'd also appreciate any updates or workarounds if you've got them, I'm having the same problem as @wannadream

[rotimi-babalola]

I'm also having this problem as well. Are there any work arounds now?

[wannadream]

What I am doing is to ignore test files when pushing component to Bit. We have CI with GitLab to handle unit testing. Awkward.

[GiladShoham]

@saltman424 @Exitialis1 @rotimi-babalola @wannadream Have you tried to configure the target and module in the compiler config? Also, soon a much better version of the extensions infrastructure (along with a new jest version based on the new infra), is coming. I don't have an exact eta, but it will be much more powerful, extendable, performing and stable. I estimate it will take a few more weeks.

[alextuppen]

@GiladShoham Thank you for the update, I am not sure if I have or not, but I am happy waiting for the new version and running tests else where for now if the new version is only a few weeks away.

[GiladShoham]

@Exitialis1 Sound like a good plan:) it will be really awesome with the new version. stay tuned:)

[speelbarrow]

Any update on the new version?

[GrmpyPmpkin]

Are there any updates on this at all?

[ldelia]

Any update on the new version? Thanks