Generating js in filesystem with ts-jest

[roman0x58]

Hi guys! I'm writing webpack loader in TypeScript, and I need reference to it as physical javascript file in my tests. For now I'm manually triggering "tsc" to turning my loader into js, afterwards I run jest task. For watching I run these task separately with watch flag. So I'm wondering if I could generate that js with ts-jest somehow without using tsc task each time.

[ahnpnl]

Currently ts-jest doesn’t write files to disk, ts-jest is a Jest transformer so writing compiled js to disk isn’t its functionality.

Im curious why you can’t use your webpack ts file in test?

[roman0x58]

Ok, got it. I can't because I'm testing it using webpack compiler, and it takes the loader in configuration as a path to js module:

  const compiler: webpack.Compiler = webpack({
        context: __dirname,
        .... 
        module: {
           rules: [
                 {
                    loader: path.resolve(__dirname, '../../index.js')
                 }
             ]
        }
   })

[ahnpnl]

interesting use case I haven't seen before. Do you mind sharing an example repo for your scenario? There is actually a similar request #1159

Anyways writing output js file to disk is not really difficult to implement so at some points it will be available .

[roman0x58]

Yep, seems #1159 is quite similar to my scenario. You can take a look to this repo https://github.com/roman0x58/gql-webpack-loader.

Anyways writing output js file to disk is not really difficult to implement so at some points it will be available .

Agreed, so I'll wait when this feature comes, thanks