Avoid using require in test files

eslint/babel-eslint-parser/test/index.js

@@ -1,10 +1,13 @@
 import path from "path";
 import escope from "eslint-scope";
 import unpad from "dedent";
+import { fileURLToPath } from "url";
+import { createRequire } from "module";
 import { parseForESLint } from "../src";
 
 const BABEL_OPTIONS = {
-  configFile: require.resolve(
+  configFile: path.resolve(
+    path.dirname(fileURLToPath(import.meta.url)),
     "../../babel-eslint-shared-fixtures/config/babel.config.js",
   ),
 };
@@ -73,6 +76,8 @@ describe("Babel and Espree", () => {
   }
 
   beforeAll(async () => {
+    const require = createRequire(import.meta.url);
+
     // Use the version of Espree that is a dependency of
     // the version of ESLint we are testing against.
     const espreePath = require.resolve("espree", {

eslint/babel-eslint-tests/test/helpers/verifyAndAssertMessages.js

@@ -1,5 +1,7 @@
 import eslint from "eslint";
 import unpad from "dedent";
+import path from "path";
+import { fileURLToPath } from "url";
 import * as parser from "../../../babel-eslint-parser";
 
 export default function verifyAndAssertMessages(
@@ -24,7 +26,8 @@ export default function verifyAndAssertMessages(
       sourceType,
       requireConfigFile: false,
       babelOptions: {
-        configFile: require.resolve(
+        configFile: path.resolve(
+          path.dirname(fileURLToPath(import.meta.url)),
           "../../../babel-eslint-shared-fixtures/config/babel.config.js",
         ),
       },

eslint/babel-eslint-tests/test/integration/eslint/config.js

@@ -1,4 +1,6 @@
 import eslint from "eslint";
+import path from "path";
+import { fileURLToPath } from "url";
 import * as parser from "@babel/eslint-parser";
 
 describe("ESLint config", () => {
@@ -10,7 +12,8 @@ describe("ESLint config", () => {
       parser: "@babel/eslint-parser",
       parserOptions: {
         babelOptions: {
-          configFile: require.resolve(
+          configFile: path.resolve(
+            path.dirname(fileURLToPath(import.meta.url)),
             "../../../../babel-eslint-shared-fixtures/config/babel.config.js",
           ),
         },

eslint/babel-eslint-tests/test/integration/eslint/verify.js

@@ -1,4 +1,6 @@
 import verifyAndAssertMessages from "../../helpers/verifyAndAssertMessages";
+import path from "path";
+import { fileURLToPath } from "url";
 
 describe("verify", () => {
   it("arrow function support (issue #1)", () => {
@@ -1080,7 +1082,8 @@ describe("verify", () => {
         parserOptions: {
           sourceType,
           babelOptions: {
-            configFile: require.resolve(
+            configFile: path.resolve(
+              path.dirname(fileURLToPath(import.meta.url)),
               "../../../../babel-eslint-shared-fixtures/config/babel.config.decorators-legacy.js",
             ),
           },

packages/babel-cli/test/index.js

@@ -1,15 +1,18 @@
-const readdir = require("fs-readdir-recursive");
-const helper = require("@babel/helper-fixtures");
-const rimraf = require("rimraf");
-const { sync: makeDirSync } = require("make-dir");
-const child = require("child_process");
-const escapeRegExp = require("lodash/escapeRegExp");
-const merge = require("lodash/merge");
-const path = require("path");
-const fs = require("fs");
-const { chmod } = require("../lib/babel/util");
-
+import readdir from "fs-readdir-recursive";
+import * as helper from "@babel/helper-fixtures";
+import rimraf from "rimraf";
+import { sync as makeDirSync } from "make-dir";
+import child from "child_process";
+import escapeRegExp from "lodash/escapeRegExp";
+import merge from "lodash/merge";
+import path from "path";
+import fs from "fs";
 import { fileURLToPath } from "url";
+import { createRequire } from "module";
+
+import { chmod } from "../lib/babel/util";
+
+const require = createRequire(import.meta.url);
 
 const dirname = path.dirname(fileURLToPath(import.meta.url));
 const fixtureLoc = path.join(dirname, "fixtures");

packages/babel-core/test/api.js

@@ -5,6 +5,10 @@ import Plugin from "../lib/config/plugin";
 import generator from "@babel/generator";
 import { fileURLToPath } from "url";
 
+import presetEnv from "../../babel-preset-env";
+import pluginSyntaxFlow from "../../babel-plugin-syntax-flow";
+import pluginFlowStripTypes from "../../babel-plugin-transform-flow-strip-types";
+
 const cwd = path.dirname(fileURLToPath(import.meta.url));
 
 function assertIgnored(result) {
@@ -307,17 +311,12 @@ describe("api", function () {
           },
 
           // env preset
-          require(cwd + "/../../babel-preset-env"),
+          presetEnv,
 
           // Third preset for Flow.
-          function () {
-            return {
-              plugins: [
-                require(cwd + "/../../babel-plugin-syntax-flow"),
-                require(cwd + "/../../babel-plugin-transform-flow-strip-types"),
-              ],
-            };
-          },
+          () => ({
+            plugins: [pluginSyntaxFlow, pluginFlowStripTypes],
+          }),
         ],
       });
     }

packages/babel-core/test/config-loading.js

@@ -4,6 +4,9 @@ import loadConfigRunner, {
 } from "../lib/config";
 import path from "path";
 import { fileURLToPath } from "url";
+import { createRequire } from "module";
+
+const require = createRequire(import.meta.url);
 
 const loadConfig = loadConfigRunner.sync;
 

packages/babel-core/test/helpers/esm.js

@@ -2,8 +2,11 @@ import cp from "child_process";
 import util from "util";
 import path from "path";
 import { fileURLToPath } from "url";
+import { createRequire } from "module";
+
 import * as babel from "../../lib";
 
+const require = createRequire(import.meta.url);
 const dirname = path.dirname(fileURLToPath(import.meta.url));
 
 // "minNodeVersion": "10.0.0" <-- For Ctrl+F when dropping node 10

packages/babel-core/test/parse.js

@@ -2,6 +2,9 @@ import fs from "fs";
 import path from "path";
 import { parse } from "../lib";
 import { fileURLToPath } from "url";
+import { createRequire } from "module";
+
+const require = createRequire(import.meta.url);
 
 function fixture(...args) {
   return path.join(

packages/babel-helper-compilation-targets/test/targets-supported.js

@@ -1,6 +1,4 @@
-"use strict";
-
-const { targetsSupported } = require("../lib/filter-items");
+import { targetsSupported } from "../lib/filter-items";
 
 describe("targetsSupported", () => {
   const MAX_VERSION = `${Number.MAX_SAFE_INTEGER}.0.0`;

packages/babel-node/test/index.js

@@ -1,14 +1,16 @@
-const includes = require("lodash/includes");
-const readdir = require("fs-readdir-recursive");
-const helper = require("@babel/helper-fixtures");
-const rimraf = require("rimraf");
-const { sync: makeDirSync } = require("make-dir");
-const child = require("child_process");
-const merge = require("lodash/merge");
-const path = require("path");
-const fs = require("fs");
-
+import includes from "lodash/includes";
+import readdir from "fs-readdir-recursive";
+import * as helper from "@babel/helper-fixtures";
+import rimraf from "rimraf";
+import { sync as makeDirSync } from "make-dir";
+import child from "child_process";
+import merge from "lodash/merge";
+import path from "path";
+import fs from "fs";
 import { fileURLToPath } from "url";
+import { createRequire } from "module";
+
+const require = createRequire(import.meta.url);
 
 const dirname = path.dirname(fileURLToPath(import.meta.url));
 const fixtureLoc = path.join(dirname, "fixtures");

packages/babel-plugin-transform-modules-commonjs/test/copied-nodes.js

@@ -2,13 +2,15 @@ import * as babel from "@babel/core";
 import { fileURLToPath } from "url";
 import path from "path";
 
+import transformCommonJS from "..";
+
 test("Doesn't use the same object for two different nodes in the AST", function () {
   const code = 'import Foo from "bar"; Foo; Foo;';
 
   const ast = babel.transform(code, {
     cwd: path.dirname(fileURLToPath(import.meta.url)),
     ast: true,
-    plugins: [[require("../"), { loose: true }]],
+    plugins: [[transformCommonJS, { loose: true }]],
   }).ast;
 
   expect(ast.program.body[0].declarations[0].id.type).toBe("Identifier");

packages/babel-plugin-transform-modules-commonjs/test/esmodule-flag.js

@@ -3,6 +3,8 @@ import vm from "vm";
 import { fileURLToPath } from "url";
 import path from "path";
 
+import transformCommonJS from "..";
+
 test("Re-export doesn't overwrite __esModule flag", function () {
   let code = 'export * from "./dep";';
   const depStub = {
@@ -15,14 +17,14 @@ test("Re-export doesn't overwrite __esModule flag", function () {
     },
     require: function (id) {
       if (id === "./dep") return depStub;
-      return require(id);
+      throw new Error("Unexpected dependency: " + id);
     },
   };
   context.exports = context.module.exports;
 
   code = babel.transform(code, {
     cwd: path.dirname(fileURLToPath(import.meta.url)),
-    plugins: [[require("../"), { loose: true }]],
+    plugins: [[transformCommonJS, { loose: true }]],
     ast: false,
   }).code;
 

packages/babel-plugin-transform-typeof-symbol/test/helper.spec.js

@@ -1,8 +1,11 @@
 import * as babel from "@babel/core";
 import fs from "fs";
+import { createRequire } from "module";
 
 import transformTypeofSymbol from "..";
 
+const require = createRequire(import.meta.url);
+
 const readFile = path =>
   new Promise((resolve, reject) =>
     fs.readFile(path, "utf8", (err, contents) => {

packages/babel-preset-env/test/get-option-specific-excludes.spec.js

@@ -1,7 +1,4 @@
-"use strict";
-
-const getOptionSpecificExcludesFor = require("../lib/get-option-specific-excludes")
-  .default;
+import getOptionSpecificExcludesFor from "../lib/get-option-specific-excludes";
 
 describe("defaults", () => {
   describe("getOptionSpecificExcludesFor", () => {

packages/babel-preset-env/test/index.spec.js

@@ -1,17 +1,17 @@
-"use strict";
+import compatData from "@babel/compat-data/plugins";
 
-const babelPresetEnv = require("../lib/index");
-const removeRegeneratorEntryPlugin = require("../lib/polyfills/regenerator")
-  .default;
-const pluginCoreJS2 = require("babel-plugin-polyfill-corejs2").default;
-const pluginCoreJS3 = require("babel-plugin-polyfill-corejs3").default;
-const pluginRegenerator = require("babel-plugin-polyfill-regenerator").default;
-const pluginLegacyBabelPolyfill = require("../lib/polyfills/babel-polyfill")
-  .default;
-const transformations = require("../lib/module-transformations").default;
+import * as babelPresetEnv from "../lib/index";
+import removeRegeneratorEntryPlugin from "../lib/polyfills/regenerator/entry-plugin";
+import pluginLegacyBabelPolyfill from "../lib/polyfills/babel-polyfill";
+import transformations from "../lib/module-transformations";
+import availablePlugins from "../lib/available-plugins";
 
-const compatData = require("@babel/compat-data/plugins");
-const availablePlugins = require("../lib/available-plugins").default;
+import _pluginCoreJS2 from "babel-plugin-polyfill-corejs2";
+import _pluginCoreJS3 from "babel-plugin-polyfill-corejs3";
+import _pluginRegenerator from "babel-plugin-polyfill-regenerator";
+const pluginCoreJS2 = _pluginCoreJS2.default;
+const pluginCoreJS3 = _pluginCoreJS3.default;
+const pluginRegenerator = _pluginRegenerator.default;
 
 describe("babel-preset-env", () => {
   describe("transformIncludesAndExcludes", () => {