fix: show error message from jest-worker (#203)

src/TaskRunner.js

@@ -34,6 +34,10 @@ export default class TaskRunner {
   async run(tasks) {
     if (this.numberWorkers > 1) {
       this.worker = new Worker(workerPath, { numWorkers: this.numberWorkers });
+
+      // show syntax error from jest-worker
+      // https://github.com/facebook/jest/issues/8872#issuecomment-524822081
+      if (this.worker.getStderr()) this.worker.getStderr().pipe(process.stderr);
     }
 
     return Promise.all(

test/__snapshots__/TerserPlugin.test.js.snap.webpack5

@@ -71,8 +71,8 @@ exports[`TerserPlugin buildWarning method 6`] = `null`;
 exports[`TerserPlugin should regenerate hash: assets 1`] = `
 Object {
   "598.598.f269c88a2945c1fb29a1.js": "(window.webpackJsonp=window.webpackJsonp||[]).push([[598],{598:(s,n,p)=>{\\"use strict\\";p.r(n),p.d(n,{default:()=>w});const w=\\"async-dep\\"}}]);",
-  "AsyncImportExport.d603d450d8015887d00e.js": "(()=>{\\"use strict\\";var e={},r={};function o(t){if(r[t])return r[t].exports;var n=r[t]={exports:{}};return e[t](n,n.exports,o),n.exports}o.m=e,o.d=(e,r)=>{for(var t in r)o.o(r,t)&&!o.o(e,t)&&Object.defineProperty(e,t,{enumerable:!0,get:r[t]})},o.f={},o.e=e=>Promise.all(Object.keys(o.f).reduce((r,t)=>(o.f[t](e,r),r),[])),o.u=e=>e+\\".\\"+e+\\".f269c88a2945c1fb29a1.js\\",o.o=(e,r)=>Object.prototype.hasOwnProperty.call(e,r),o.r=e=>{\\"undefined\\"!=typeof Symbol&&Symbol.toStringTag&&Object.defineProperty(e,Symbol.toStringTag,{value:\\"Module\\"}),Object.defineProperty(e,\\"__esModule\\",{value:!0})},o.p=\\"\\",(()=>{var e={988:0};o.f.j=(r,t)=>{var n=o.o(e,r)?e[r]:void 0;if(0!==n)if(n)t.push(n[2]);else{var a=new Promise((o,t)=>{n=e[r]=[o,t]});t.push(n[2]=a);var i,s=o.p+o.u(r),u=document.createElement(\\"script\\");u.charset=\\"utf-8\\",u.timeout=120,o.nc&&u.setAttribute(\\"nonce\\",o.nc),u.src=s;var p=new Error;i=t=>{i=()=>{},u.onerror=u.onload=null,clearTimeout(c);var a=(()=>{if(o.o(e,r)&&(0!==(n=e[r])&&(e[r]=void 0),n))return n[1]})();if(a){var s=t&&(\\"load\\"===t.type?\\"missing\\":t.type),d=t&&t.target&&t.target.src;p.message=\\"Loading chunk \\"+r+\\" failed.\\\\n(\\"+s+\\": \\"+d+\\")\\",p.name=\\"ChunkLoadError\\",p.type=s,p.request=d,a(p)}};var c=setTimeout(()=>{i({type:\\"timeout\\",target:u})},12e4);u.onerror=u.onload=i,document.head.appendChild(u)}};var r=window.webpackJsonp=window.webpackJsonp||[],t=r.push.bind(r);r.push=function(r){for(var t,a,i=r[0],s=r[1],u=r[3],p=0,c=[];p<i.length;p++)a=i[p],o.o(e,a)&&e[a]&&c.push(e[a][0]),e[a]=0;for(t in s)o.o(s,t)&&(o.m[t]=s[t]);for(u&&u(o),n&&n(r);c.length;)c.shift()()};var n=t})(),o.e(598).then(o.bind(o,598)).then(()=>{console.log(\\"Good\\")})})();",
-  "importExport.8deb6b94a7f006da83b9.js": "(()=>{\\"use strict\\"})();",
+  "AsyncImportExport.20dd5a01f5bf08dbc6c1.js": "(()=>{\\"use strict\\";var e={},r={};function o(t){if(r[t])return r[t].exports;var n=r[t]={exports:{}};return e[t](n,n.exports,o),n.exports}o.m=e,o.d=(e,r)=>{for(var t in r)o.o(r,t)&&!o.o(e,t)&&Object.defineProperty(e,t,{enumerable:!0,get:r[t]})},o.f={},o.e=e=>Promise.all(Object.keys(o.f).reduce((r,t)=>(o.f[t](e,r),r),[])),o.u=e=>e+\\".\\"+e+\\".f269c88a2945c1fb29a1.js\\",o.o=(e,r)=>Object.prototype.hasOwnProperty.call(e,r),o.r=e=>{\\"undefined\\"!=typeof Symbol&&Symbol.toStringTag&&Object.defineProperty(e,Symbol.toStringTag,{value:\\"Module\\"}),Object.defineProperty(e,\\"__esModule\\",{value:!0})},o.p=\\"\\",(()=>{var e={988:0};o.f.j=(r,t)=>{var n=o.o(e,r)?e[r]:void 0;if(0!==n)if(n)t.push(n[2]);else{var a=new Promise((o,t)=>{n=e[r]=[o,t]});t.push(n[2]=a);var i,s=o.p+o.u(r),u=document.createElement(\\"script\\");u.charset=\\"utf-8\\",u.timeout=120,o.nc&&u.setAttribute(\\"nonce\\",o.nc),u.src=s;var p=new Error;i=t=>{i=()=>{},u.onerror=u.onload=null,clearTimeout(c);var a=(()=>{if(o.o(e,r)&&(0!==(n=e[r])&&(e[r]=void 0),n))return n[1]})();if(a){var s=t&&(\\"load\\"===t.type?\\"missing\\":t.type),d=t&&t.target&&t.target.src;p.message=\\"Loading chunk \\"+r+\\" failed.\\\\n(\\"+s+\\": \\"+d+\\")\\",p.name=\\"ChunkLoadError\\",p.type=s,p.request=d,a(p)}};var c=setTimeout(()=>{i({type:\\"timeout\\",target:u})},12e4);u.onerror=u.onload=i,document.head.appendChild(u)}};var r=window.webpackJsonp=window.webpackJsonp||[],t=r.push.bind(r);r.push=function(r){for(var t,a,i=r[0],s=r[1],u=r[3],p=0,c=[];p<i.length;p++)a=i[p],o.o(e,a)&&e[a]&&c.push(e[a][0]),e[a]=0;for(t in s)o.o(s,t)&&(o.m[t]=s[t]);for(u&&u(o),n&&n(r);c.length;)c.shift()()};var n=t})(),o.e(598).then(o.bind(o,598)).then(()=>{console.log(\\"Good\\")})})();",
+  "importExport.d938eb9e9df24afaa8d2.js": "(()=>{\\"use strict\\"})();",
   "js.0ec4c136cd66a3cda54a.js": "(()=>{var r={791:r=>{r.exports=function(){console.log(7)}}},o={};!function t(e){if(o[e])return o[e].exports;var n=o[e]={exports:{}};return r[e](n,n.exports,t),n.exports}(791)})();",
   "mjs.d62bda6aebbfc0328d92.js": "(()=>{var r={631:r=>{r.exports=function(){console.log(7)}}},o={};!function t(e){if(o[e])return o[e].exports;var n=o[e]={exports:{}};return r[e](n,n.exports,t),n.exports}(631)})();",
 }
@@ -210,7 +210,7 @@ Object {
   "assetEmitted": 0,
   "beforeCompile": 0,
   "beforeRun": 1,
-  "compilation": 45,
+  "compilation": 47,
   "compile": 0,
   "contextModuleFactory": 0,
   "done": 1,