how to separate files for mocha-webpack

What's happening is that when I run my tests, my coverage only shows bundle.js which isn't that helpful.

I have the following webpack file setup and wanted to know what I should change to make it so that each file is covered individually

webpack.config-test.js

var nodeExternals = require("webpack-node-externals")
const path = require("path")

module.exports = {
    context: path.resolve(__dirname),
    resolve: {
        extensions: [".js"],
        alias: {
            "@": path.join(__dirname, "../../src/server"),
        }
    },
    output: {
        path: "./",
        filename: "[name].js",
    },    
    target: "node", // webpack should compile node compatible code
    externals: [nodeExternals()], // in order to ignore all modules in node_modules folder
}

running the command via npm:

nyc mocha-webpack --webpack-config test/server/webpack.config-test.js --glob \"*spec.js\" test/server/unit

The output currently is:

All files  |    90.38 |    70.83 |    90.91 |     90.2 |                   |
 bundle.js |    90.38 |    70.83 |    90.91 |     90.2 |... 78,280,282,306

whereas I'm expecting the output to be

All files     |       80 |    68.75 |       80 |       80 |                   |
 functions.js |    78.79 |    68.75 |       80 |    78.79 |... 59,60,62,64,88 |
 mixin.js     |      100 |      100 |      100 |      100 | 

In the non mocha-webpack version, I also added the filename to each test, and I would like that to also happen in the webpack version. So without webpack, I run on an index.js, i.e.

index.js

const fs = require("fs")
const path = require("path")

const files = fs.readdirSync(__dirname)
files.forEach(file => 
{
    if (!file.match(/\.spec\.js$/))
        return

    console.log(file)

    describe(file, function () 
    {
        require(path.join(__dirname, file))
    })
})

which then outputs something like:

  sql.spec.js
    Some SQL tests
      ✓ should be 10

  test.spec.js
    generateRandomString
      ✓ should generate a 20 length string
      ✓ should generate a 40 length string
      ✓ should throw error for -10
      ✓ should throw error for length
    getRequiredProps
      ✓ should get prop
      ✓ should throw error
    toTime
      ✓ 1 seconds should return 1000
      ✓ 1 minutes should return 60000
      ✓ 1 hours should return 3600000
      ✓ 1 days should return 86400000

Update

There's source-mapping, but it's showing a lot more than I'd like: https://github.com/zinserjan/mocha-webpack/blob/master/docs/installation/webpack-configuration.md

------------------------------------------|----------|----------|----------|----------|-------------------|
File                                      |  % Stmts | % Branch |  % Funcs |  % Lines | Uncovered Line #s |
------------------------------------------|----------|----------|----------|----------|-------------------|
All files                                 |     78.8 |    54.72 |    87.27 |     78.7 |                   |
 .tmp/mocha-webpack/1532582562486/webpack |    95.45 |       75 |    83.33 |    95.24 |                   |
  bootstrap 4e654663ecc955703de0          |    95.45 |       75 |    83.33 |    95.24 |                49 |
 node_modules/mocha-webpack/lib           |      100 |      100 |      100 |      100 |                   |
  entry.js                                |      100 |      100 |      100 |      100 |                   |
 src/server                               |       64 |    48.65 |       70 |       64 |                   |
  db.js                                   |    45.61 |    26.32 |    45.45 |    45.61 |... 20,122,126,138 |
  functions.js                            |    84.85 |    72.22 |      100 |    84.85 |    42,58,59,60,87 |
  mixin.js                                |      100 |      100 |      100 |      100 |                   |
  mock.js                                 |      100 |      100 |      100 |      100 |                   |
 src/server/post                          |       75 |     62.5 |      100 |       75 |                   |
  maptool.js                              |       75 |     62.5 |      100 |       75 |... 41,148,158,159 |
 test/server/unit                         |    98.33 |      100 |      100 |    98.33 |                   |
  functions.spec.js                       |    96.97 |      100 |      100 |    96.97 |                67 |
  maptool.spec.js                         |      100 |      100 |      100 |      100 |                   |
  mock.spec.js                            |      100 |      100 |      100 |      100 |                   |
  sql.spec.js                             |      100 |      100 |      100 |      100 |                   |
------------------------------------------|----------|----------|----------|----------|-------------------|

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