Using with code coverage [nyc + babel-plugin-istanbul]

[4matic]

How can I use this module to get coverage of my code? (nyc + babel-plugin-istanbul)
I figured out that under the hood you are using mocha-webpack.
I found 🔍 good issue for that
How about using with spinjs?

Also I have found lines where is possible change path for that:
https://github.com/sysgears/spinjs/blob/d76a58b4512ecf3bc6dda5b336eac135d47a1efa/src/executor.ts#L966-L975

[larixer]

@4matic Lets discuss in the chat:
https://gitter.im/sysgears/spinjs

To start, search babelConfig option in spinjs docs:
https://github.com/sysgears/spinjs#concepts

[4matic]

After a little discuss I found a way to apply this in my project:

First I used to try this for babelConfig option in .spinrc.js file as it is described here

{
  "options":{
    "babelConfig": {
      "presets": ["env"],
        "env": {
        "test": {
          "plugins": ["istanbul"]
        }
      }
    }
  }
}

But unfortunately this not worked...

So after that I tried other solution:
For this I used cross-env to set NODE_ENV to test:
nyc cross-env NODE_ENV=test spin test -t 15000 --full-trace --exit \"src/**/*.spec.js\"

And also added some condition to my .spinrc.js file:

if (process.env.NODE_ENV === 'test') {
  config.options.babelConfig = {
    "plugins": ["istanbul"]
  }
}

That's all.
Thanks to @Vlasenko for pointing out the correct direction of the idea.

[larixer]

@4matic Thank you very much for writing the solution here!