refactor: perf-loader and test

lib/builder/builder.js

@@ -466,7 +466,7 @@ export default class Builder {
     // Warmup perfLoader before build
     if (this.options.build.parallel) {
       consola.start('Warming up worker pools')
-      this.perfLoader.warmup()
+      this.perfLoader.warmupAll()
       consola.success('Worker pools ready')
     }
 

lib/builder/webpack/utils/perf-loader.js

@@ -1,6 +1,6 @@
 import path from 'path'
 
-import threadLoader from 'thread-loader'
+import { warmup } from 'thread-loader'
 
 // https://github.com/webpack-contrib/thread-loader
 // https://github.com/webpack-contrib/cache-loader
@@ -8,12 +8,11 @@ import threadLoader from 'thread-loader'
 export default class PerfLoader {
   constructor(options) {
     this.options = options
-    this.threadLoader = threadLoader
+    this.warmup = warmup
     this.workerPools = {
       js: {
         name: 'js',
         poolTimeout: this.options.dev ? Infinity : 2000
-
       },
       css: {
         name: 'css',
@@ -22,9 +21,9 @@ export default class PerfLoader {
     }
   }
 
-  warmup() {
-    this.threadLoader.warmup(this.workerPools.js, ['babel-loader', 'babel-preset-env'])
-    this.threadLoader.warmup(this.workerPools.css, ['css-loader'])
+  warmupAll() {
+    this.warmup(this.workerPools.js, ['babel-loader', 'babel-preset-env'])
+    this.warmup(this.workerPools.css, ['css-loader'])
   }
 
   pool(poolName, _loaders) {

test/fixtures/with-config/nuxt.config.js

@@ -48,6 +48,7 @@ export default {
     publicPath: '/orion/',
     maxChunkSize: 300000,
     cssSourceMap: true,
+    parallel: true,
     analyze: {
       analyzerMode: 'disabled',
       generateStatsFile: true,

test/unit/wp.config.test.js

@@ -15,12 +15,11 @@ describe('webpack configuration', () => {
     const css = { name: 'css', poolTimeout: Infinity }
     expect(perfLoader.workerPools).toMatchObject({ js, css })
 
-    const warmup = jest.fn()
-    perfLoader.threadLoader = { warmup }
-    perfLoader.warmup()
-    expect(warmup).toHaveBeenCalledTimes(2)
-    expect(warmup).toHaveBeenCalledWith(js, ['babel-loader', 'babel-preset-env'])
-    expect(warmup).toHaveBeenCalledWith(css, ['css-loader'])
+    perfLoader.warmup = jest.fn()
+    perfLoader.warmupAll()
+    expect(perfLoader.warmup).toHaveBeenCalledTimes(2)
+    expect(perfLoader.warmup).toHaveBeenCalledWith(js, ['babel-loader', 'babel-preset-env'])
+    expect(perfLoader.warmup).toHaveBeenCalledWith(css, ['css-loader'])
 
     const loaders = perfLoader.pool('js', { loader: 'test-perf-loader' })
     const cacheDirectory = path.resolve('node_modules/.cache/cache-loader')