GProst/webpack-clean-obsolete-chunks

'use strict'

const fs = require('fs')
const del = require('del')
const {
  JSFileToChange, outsideOutputDirectory, JSFileInitialContent, JSFileNewContent
} = require('./test-config').common

const webpackVersion = require('minimist')(process.argv.slice(2)).webpack
if (!webpackVersion)
  throw Error('No webpack version provided!')

const {testFunctions: {checkFilesLength}, getWebpackConfig, startWebpackWatch} = require('./helper-functions')

if (webpackVersion > 2) {
  describe(`webpack-clean-obsolete-chunks plugin in webpack${webpackVersion} watch mode (child compilation)`, () => {
    let fileToChange //the file we are going to change
    let changedFileInitialContent //initial content of the file we are going to change
    let newContent //new content in file we are going to change

    let config

    afterEach(() => {
      //restore initial file content
      fs.writeFileSync(fileToChange, changedFileInitialContent)
      //removing created directory after tests
      del.sync(outsideOutputDirectory + '/**', {force: true})
    })

    it('SHOULD remove all obsolete js files and their maps in main and child compilations if {deep: true} option provided', (done) => {
      fileToChange = JSFileToChange
      changedFileInitialContent = JSFileInitialContent
      newContent = changedFileInitialContent + JSFileNewContent
      config = getWebpackConfig({webpackVersion, deep: true})
      const testFunction = checkFilesLength({fileToChange, newContent})
      startWebpackWatch({webpackVersion, config, testFunction, withChildCompilation: true}, done)
    })

    it('SHOULD remove all obsolete js files and their maps only in main compilation', (done) => {
      fileToChange = JSFileToChange
      changedFileInitialContent = JSFileInitialContent
      newContent = changedFileInitialContent + JSFileNewContent
      config = getWebpackConfig({webpackVersion})
      const testFunction = checkFilesLength({fileToChange, newContent, sameLength: false})
      startWebpackWatch({webpackVersion, config, testFunction, withChildCompilation: true}, done)
    })
  })
}