From c760c13c5dc15429dc3d8fb476a456f4a30e498a Mon Sep 17 00:00:00 2001
From: Evilebot Tnawi <evilebottnawi@users.noreply.github.com>
Date: Thu, 20 Aug 2020 20:31:11 +0300
Subject: [PATCH] test: `realContentHash` (#304)

---
 test/TerserPlugin.test.js                     | 49 +++++++++++++++++++
 .../TerserPlugin.test.js.snap.webpack5        | 11 +++++
 2 files changed, 60 insertions(+)

diff --git a/test/TerserPlugin.test.js b/test/TerserPlugin.test.js
index 5e63fb40..99350b2c 100644
--- a/test/TerserPlugin.test.js
+++ b/test/TerserPlugin.test.js
@@ -18,6 +18,7 @@ import {
   getCompiler,
   getErrors,
   getWarnings,
+  readAsset,
   readsAssets,
   removeCache,
 } from './helpers';
@@ -843,4 +844,52 @@ describe('TerserPlugin', () => {
     expect(getErrors(stats)).toMatchSnapshot('errors');
     expect(getWarnings(stats)).toMatchSnapshot('warnings');
   });
+
+  it('should work and generate real content hash', async () => {
+    if (getCompiler.isWebpack4()) {
+      expect(true).toBe(true);
+    } else {
+      const compiler = getCompiler({
+        entry: {
+          app: path.resolve(__dirname, './fixtures/async-import-export/entry'),
+        },
+        output: {
+          pathinfo: false,
+          path: path.resolve(__dirname, 'dist'),
+          filename: '[name].[contenthash].[chunkhash].[fullhash].js',
+          chunkFilename: '[name].[contenthash].[chunkhash].[fullhash].js',
+        },
+        optimization: {
+          minimize: false,
+          realContentHash: true,
+        },
+      });
+
+      new TerserPlugin().apply(compiler);
+
+      const stats = await compile(compiler);
+      const {
+        compilation: {
+          assets,
+          options: { output },
+        },
+      } = stats;
+
+      for (const assetName of Object.keys(assets)) {
+        const [, webpackHash] = assetName.match(/^.+?\.(.+?)\..+$/);
+        const { hashDigestLength, hashDigest, hashFunction } = output;
+        const cryptoHash = crypto
+          .createHash(hashFunction)
+          .update(readAsset(assetName, compiler, stats))
+          .digest(hashDigest)
+          .slice(0, hashDigestLength);
+
+        expect(webpackHash).toBe(cryptoHash);
+      }
+
+      expect(readsAssets(compiler, stats)).toMatchSnapshot('assets');
+      expect(getErrors(stats)).toMatchSnapshot('errors');
+      expect(getWarnings(stats)).toMatchSnapshot('warnings');
+    }
+  });
 });
diff --git a/test/__snapshots__/TerserPlugin.test.js.snap.webpack5 b/test/__snapshots__/TerserPlugin.test.js.snap.webpack5
index ab48ade5..0454521f 100644
--- a/test/__snapshots__/TerserPlugin.test.js.snap.webpack5
+++ b/test/__snapshots__/TerserPlugin.test.js.snap.webpack5
@@ -98,6 +98,17 @@ exports[`TerserPlugin should work (without options): errors 1`] = `Array []`;
 
 exports[`TerserPlugin should work (without options): warnings 1`] = `Array []`;
 
+exports[`TerserPlugin should work and generate real content hash: assets 1`] = `
+Object {
+  "598.ce0b7cde053504e39acf.6deaf1ba7f53eff889b0.d40767e553c518550dec.js": "(window.webpackJsonpterser_webpack_plugin=window.webpackJsonpterser_webpack_plugin||[]).push([[598],{598:(e,p,s)=>{\\"use strict\\";s.r(p),s.d(p,{default:()=>n});const n=\\"async-dep\\"}}]);",
+  "app.d1f36e00a3e46fd652ec.11a095fd3ecd51f2f6b2.d40767e553c518550dec.js": "(()=>{\\"use strict\\";var e,r,t={},o={};function n(e){if(o[e])return o[e].exports;var r=o[e]={exports:{}};return t[e](r,r.exports,n),r.exports}n.m=t,n.d=(e,r)=>{for(var t in r)n.o(r,t)&&!n.o(e,t)&&Object.defineProperty(e,t,{enumerable:!0,get:r[t]})},n.f={},n.e=e=>Promise.all(Object.keys(n.f).reduce((r,t)=>(n.f[t](e,r),r),[])),n.u=e=>e+\\".ce0b7cde053504e39acf.6deaf1ba7f53eff889b0.\\"+n.h()+\\".js\\",n.h=()=>\\"d40767e553c518550dec\\",n.o=(e,r)=>Object.prototype.hasOwnProperty.call(e,r),e={},r=\\"terser-webpack-plugin:\\",n.l=(t,o,a)=>{if(e[t])e[t].push(o);else{var i,u;if(void 0!==a)for(var d=document.getElementsByTagName(\\"script\\"),l=0;l<d.length;l++){var s=d[l];if(s.getAttribute(\\"src\\")==t||s.getAttribute(\\"data-webpack\\")==r+a){i=s;break}}i||(u=!0,(i=document.createElement(\\"script\\")).charset=\\"utf-8\\",i.timeout=120,n.nc&&i.setAttribute(\\"nonce\\",n.nc),i.setAttribute(\\"data-webpack\\",r+a),i.src=t),e[t]=[o];var p=(r,o)=>{i.onerror=i.onload=null,clearTimeout(c);var n=e[t];if(delete e[t],i.parentNode&&i.parentNode.removeChild(i),n&&n.forEach(e=>e(o)),r)return r(o)},c=setTimeout(p.bind(null,void 0,{type:\\"timeout\\",target:i}),12e4);i.onerror=p.bind(null,i.onerror),i.onload=p.bind(null,i.onload),u&&document.head.appendChild(i)}},n.r=e=>{\\"undefined\\"!=typeof Symbol&&Symbol.toStringTag&&Object.defineProperty(e,Symbol.toStringTag,{value:\\"Module\\"}),Object.defineProperty(e,\\"__esModule\\",{value:!0})},n.p=\\"\\",(()=>{var e={143:0};n.f.j=(r,t)=>{var o=n.o(e,r)?e[r]:void 0;if(0!==o)if(o)t.push(o[2]);else{var a=new Promise((t,n)=>{o=e[r]=[t,n]});t.push(o[2]=a);var i=n.p+n.u(r),u=new Error;n.l(i,t=>{if(n.o(e,r)&&(0!==(o=e[r])&&(e[r]=void 0),o)){var a=t&&(\\"load\\"===t.type?\\"missing\\":t.type),i=t&&t.target&&t.target.src;u.message=\\"Loading chunk \\"+r+\\" failed.\\\\n(\\"+a+\\": \\"+i+\\")\\",u.name=\\"ChunkLoadError\\",u.type=a,u.request=i,o[1](u)}},\\"chunk-\\"+r)}};var r=window.webpackJsonpterser_webpack_plugin=window.webpackJsonpterser_webpack_plugin||[],t=r.push.bind(r);r.push=function(r){for(var t,a,i=r[0],u=r[1],d=r[3],l=0,s=[];l<i.length;l++)a=i[l],n.o(e,a)&&e[a]&&s.push(e[a][0]),e[a]=0;for(t in u)n.o(u,t)&&(n.m[t]=u[t]);for(d&&d(n),o&&o(r);s.length;)s.shift()()};var o=t})(),n.e(598).then(n.bind(n,598)).then(()=>{console.log(\\"Good\\")})})();",
+}
+`;
+
+exports[`TerserPlugin should work and generate real content hash: errors 1`] = `Array []`;
+
+exports[`TerserPlugin should work and generate real content hash: warnings 1`] = `Array []`;
+
 exports[`TerserPlugin should work and respect "terser" errors (the "parallel" option is "false"): errors 1`] = `
 Array [
   "Error: main.js from Terser