declaration files are not emitted

[sandangel]

Issue :

I want to author jest.config in ts file. Could you please add declaration: true?

Expected behavior :

this should work:

// jest.config.ts
import { pathToModuleNameMapper } from 'ts-jest';

Debug log:

log file content

# content of ts-jest.log :

Minimal repo :

[huafu]

@sandangel thanks for reporting this. Unfortunately I don't think having your Jest config in ts will work. Or are you compiling it first?

Update: anyway, the declaration not generated is indeed an issue

[sandangel]

I have it run with ts-node and gulp, I don' use jest directly. I just need pathToModuleNameMapper auto completion

[huafu]

@sandangel are you on our Slack channel? Would love to learn more about your test pipeline for informational purpose.

[sandangel]

No I'm not on your Slack channel. I use this gulp plugin https://github.com/alansouzati/gulp-jest
to call jest in gulp script. I only have to pass configuration object there. which mean, no jest.config.js needed. I just want to have type completion with ts-jest to provide type check for ts-jest config and some helper method like pathsToModuleNameMapper

[huafu]

Yeah I understood what you wanted ;-)
For your pipeline, do you have a watch option so that jest runs in watch mode while you edit your source and test files?

[sandangel]

I use watch: true option in jest.InitialOptions. I don't use gulp.watch