test: refactor

babel.config.js

@@ -11,8 +11,7 @@ module.exports = (api) => {
       [
         "@babel/preset-env",
         {
-          exclude:
-            process.env.NODE_ENV === "test" ? [] : ["proposal-dynamic-import"],
+          exclude: ["proposal-dynamic-import"],
           targets: {
             node: "18.12.0",
           },

jest.config.js

@@ -2,17 +2,5 @@
 
 module.exports = {
   testEnvironment: "node",
-  moduleNameMapper: {
-    "^imagemin$": "<rootDir>/test/bundled/imagemin/index.js",
-    "^imagemin-svgo$": "<rootDir>/test/bundled/imagemin-svgo/index.js",
-    "^node:buffer$": "<rootDir>/test/helpers/built-in-modules/buffer.js",
-    "^node:fs$": "<rootDir>/test/helpers/built-in-modules/fs.js",
-    "^node:util$": "<rootDir>/test/helpers/built-in-modules/util.js",
-    "^node:path$": "<rootDir>/test/helpers/built-in-modules/path.js",
-    "^node:stream$": "<rootDir>/test/helpers/built-in-modules/stream.js",
-    "^node:url$": "<rootDir>/test/helpers/built-in-modules/url.js",
-    "^node:process$": "<rootDir>/test/helpers/built-in-modules/url.js",
-  },
   collectCoverageFrom: ["src/**/*.{js,mjs,jsx}"],
-  globalSetup: "<rootDir>/globalSetup.js",
 };

package.json

@@ -33,7 +33,7 @@
     "fix:js": "npm run lint:js -- --fix",
     "fix:prettier": "npm run lint:prettier -- --write",
     "fix": "npm-run-all -l fix:js fix:prettier",
-    "test:only": "cross-env NODE_ENV=test jest --runInBand",
+    "test:only": "cross-env NODE_ENV=test node --experimental-vm-modules node_modules/jest/bin/jest.js  --runInBand",
     "test:watch": "npm run test:only -- --watch",
     "test:coverage": "npm run test:only -- --collectCoverageFrom=\"src/**/*.js\" --coverage",
     "pretest": "npm run lint",

test/helpers.js

@@ -1,11 +1,9 @@
 import fs from "fs";
 import path from "path";
 
-import imagemin from "imagemin";
 import imageminGifsicle from "imagemin-gifsicle";
 import imageminMozjpeg from "imagemin-mozjpeg";
 import imageminPngquant from "imagemin-pngquant";
-import imageminSvgo from "imagemin-svgo";
 import pify from "pify";
 import tempy from "tempy";
 import webpack from "webpack";
@@ -244,7 +242,7 @@ function runWebpack(maybeOptions, getCompiler = false) {
   return pify(webpack)(configs.length === 1 ? configs[0] : configs);
 }
 
-function isOptimized(originalPath, compilation) {
+async function isOptimized(originalPath, compilation) {
   const { assets } = compilation;
   let name = originalPath;
   let realName = originalPath;
@@ -263,6 +261,9 @@ function isOptimized(originalPath, compilation) {
   const pathToOriginal = path.join(fixturesPath, realName);
   const pathToEmitted = path.join(outputPath, name);
 
+  const imagemin = (await import("imagemin")).default;
+  const imageminSvgo = (await import("imagemin-svgo")).default;
+
   return Promise.resolve()
     .then(() => pify(fs.readFile)(pathToOriginal))
     .then((data) =>

test/worker.test.js

@@ -1,10 +1,8 @@
 import fs from "fs";
 import path from "path";
 
-import imagemin from "imagemin";
 import imageminMozjpeg from "imagemin-mozjpeg";
 import imageminWebp from "imagemin-webp";
-import imageminSvgo from "imagemin-svgo";
 import pify from "pify";
 import sharp from "sharp";
 import { ifit, needSquooshTest } from "./helpers";
@@ -22,7 +20,15 @@ function isPromise(obj) {
   );
 }
 
+let imagemin;
+let imageminSvgo;
+
 describe("minify", () => {
+  beforeAll(async () => {
+    imagemin = (await import("imagemin")).default;
+    imageminSvgo = (await import("imagemin-svgo")).default;
+  });
+
   it("minify should be is function", () =>
     expect(worker).toBeInstanceOf(Function));