import path from 'path'

import PerfLoader from '../../packages/webpack/src/utils/perf-loader'

describe('webpack configuration', () => {

test('performance loader', () => {

const js = { name: 'js', poolTimeout: Infinity }

const css = { name: 'css', poolTimeout: Infinity }

PerfLoader.warmup = jest.fn()

PerfLoader.warmupAll({ dev: true })

expect(PerfLoader.warmup).toHaveBeenCalledTimes(2)

expect(PerfLoader.warmup).toHaveBeenCalledWith(js, [

require.resolve('babel-loader'),

require.resolve('@babel/preset-env')

])

expect(PerfLoader.warmup).toHaveBeenCalledWith(css, ['css-loader'])

const perfLoader = new PerfLoader(

'test-perf',

{

options: {

dev: true

},

buildOptions: {

parallel: true,

cache: true

}

}

)

expect(perfLoader.workerPools).toMatchObject({ js, css })

const loaders = perfLoader.use('js')

const cacheDirectory = path.resolve('node_modules/.cache/cache-loader/test-perf')

expect(loaders).toMatchObject([

{ loader: 'cache-loader', options: { cacheDirectory } },

{ loader: 'thread-loader', options: js }

])

})

})