webpack.tests.config.js

const webPack = require('./webpack.config')
const fs = require('fs')
const path = require('path')

const readDirRecursiveSync = (folder, filter) => {
  const currentPath = fs.readdirSync(folder).map(f => path.join(folder, f))
  const files = currentPath.filter(filter)

  const directories = currentPath
    .filter(f => fs.statSync(f).isDirectory())
    .map(f => readDirRecursiveSync(f, filter))
    .reduce((cur, next) => [...cur, ...next], [])

  return [...files, ...directories]
}

const getEntries = (folder) =>
  readDirRecursiveSync(folder, f => f.match(/.*(tests|specs)\.tsx?$/))
    .map((file) => {
      return {
        name: path.basename(file, path.extname(file)),
        path: path.resolve(file)
      }
    })
    .reduce((memo, file) => {
      memo[file.name] = file.path
      return memo
    }, {})

module.exports = [
  Object.assign({}, webPack[0], {entry: getEntries('./tests/gui/')}),
  Object.assign({}, webPack[0], {entry: getEntries('./tests/main/')})
].map(s => {
  s.output.path = path.resolve(__dirname, '__tests__')
  return s
})