Use full import specifier path in tests

.eslintrc.cjs

@@ -67,7 +67,10 @@ module.exports = {
         "jest/no-standalone-expect": "off",
         "jest/no-test-callback": "off",
         "jest/valid-describe": "off",
-        "import/extensions": ["error", { json: "always", cjs: "always" }],
+        "import/extensions": [
+          "error",
+          { json: "always", js: "always", cjs: "always", mjs: "always" },
+        ],
       },
     },
     {

eslint/babel-eslint-plugin-development-internal/test/rules/dry-error-messages.js

@@ -1,6 +1,6 @@
 import path from "path";
-import rule from "../../src/rules/dry-error-messages";
-import RuleTester from "../../../babel-eslint-shared-fixtures/utils/RuleTester";
+import rule from "../../lib/rules/dry-error-messages.js";
+import RuleTester from "../../../babel-eslint-shared-fixtures/utils/RuleTester.js";
 import { fileURLToPath } from "url";
 
 const dirname = path.dirname(fileURLToPath(import.meta.url));

eslint/babel-eslint-plugin-development-internal/test/rules/report-error-message-formtat.js

@@ -1,5 +1,5 @@
-import RuleTester from "../../../babel-eslint-shared-fixtures/utils/RuleTester";
-import rule from "../../src/rules/report-error-message-format";
+import RuleTester from "../../../babel-eslint-shared-fixtures/utils/RuleTester.js";
+import rule from "../../lib/rules/report-error-message-format.js";
 
 const ruleTester = new RuleTester();
 

eslint/babel-eslint-plugin-development/test/rules/no-deprecated-clone.js

@@ -1,5 +1,5 @@
-import rule from "../../src/rules/no-deprecated-clone";
-import RuleTester from "../../../babel-eslint-shared-fixtures/utils/RuleTester";
+import rule from "../../lib/rules/no-deprecated-clone.js";
+import RuleTester from "../../../babel-eslint-shared-fixtures/utils/RuleTester.js";
 
 const cloneError = "t.clone() is deprecated. Use t.cloneNode() instead.";
 const cloneDeepError =

eslint/babel-eslint-plugin-development/test/rules/no-undefined-identifier.js

@@ -1,5 +1,5 @@
-import rule from "../../src/rules/no-undefined-identifier";
-import RuleTester from "../../../babel-eslint-shared-fixtures/utils/RuleTester";
+import rule from "../../lib/rules/no-undefined-identifier.js";
+import RuleTester from "../../../babel-eslint-shared-fixtures/utils/RuleTester.js";
 
 const error =
   "Use path.scope.buildUndefinedNode() to create an undefined identifier directly.";

eslint/babel-eslint-plugin-development/test/rules/plugin-name.js

@@ -1,5 +1,5 @@
-import rule from "../../src/rules/plugin-name";
-import RuleTester from "../../../babel-eslint-shared-fixtures/utils/RuleTester";
+import rule from "../../lib/rules/plugin-name.js";
+import RuleTester from "../../../babel-eslint-shared-fixtures/utils/RuleTester.js";
 
 const missingPluginError = "This file does not export a Babel plugin.";
 const missingNameError = "This Babel plugin doesn't have a 'name' property.";

eslint/babel-eslint-plugin/test/rules/new-cap.js

@@ -1,5 +1,5 @@
-import rule from "../../src/rules/new-cap";
-import RuleTester from "../../../babel-eslint-shared-fixtures/utils/RuleTester";
+import rule from "../../lib/rules/new-cap.js";
+import RuleTester from "../../../babel-eslint-shared-fixtures/utils/RuleTester.js";
 
 const ruleTester = new RuleTester();
 ruleTester.run("@babel/new-cap", rule, {

eslint/babel-eslint-plugin/test/rules/no-invalid-this.js

@@ -1,6 +1,6 @@
 import cloneDeep from "clone-deep";
-import rule from "../../src/rules/no-invalid-this";
-import RuleTester from "../../../babel-eslint-shared-fixtures/utils/RuleTester";
+import rule from "../../lib/rules/no-invalid-this.js";
+import RuleTester from "../../../babel-eslint-shared-fixtures/utils/RuleTester.js";
 
 /**
  * A constant value for non strict mode environment.

eslint/babel-eslint-plugin/test/rules/no-unused-expressions.js

@@ -1,5 +1,5 @@
-import rule from "../../src/rules/no-unused-expressions";
-import RuleTester from "../../../babel-eslint-shared-fixtures/utils/RuleTester";
+import rule from "../../lib/rules/no-unused-expressions.js";
+import RuleTester from "../../../babel-eslint-shared-fixtures/utils/RuleTester.js";
 
 const ruleTester = new RuleTester();
 ruleTester.run("@babel/no-unused-expressions", rule, {

eslint/babel-eslint-plugin/test/rules/object-curly-spacing.js

@@ -1,5 +1,5 @@
-import rule from "../../src/rules/object-curly-spacing";
-import RuleTester from "../../../babel-eslint-shared-fixtures/utils/RuleTester";
+import rule from "../../lib/rules/object-curly-spacing.js";
+import RuleTester from "../../../babel-eslint-shared-fixtures/utils/RuleTester.js";
 
 const ruleTester = new RuleTester();
 ruleTester.run("@babel/object-curly-spacing", rule, {

eslint/babel-eslint-plugin/test/rules/semi.js

@@ -1,5 +1,5 @@
-import rule from "../../src/rules/semi";
-import RuleTester from "../../../babel-eslint-shared-fixtures/utils/RuleTester";
+import rule from "../../lib/rules/semi.js";
+import RuleTester from "../../../babel-eslint-shared-fixtures/utils/RuleTester.js";
 
 const ruleTester = new RuleTester();
 

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

@@ -1,4 +1,4 @@
-import verifyAndAssertMessages from "../../helpers/verifyAndAssertMessages";
+import verifyAndAssertMessages from "../../helpers/verifyAndAssertMessages.js";
 import path from "path";
 import { fileURLToPath } from "url";
 

packages/babel-cli/test/index.js

@@ -7,7 +7,7 @@ import fs from "fs";
 import { fileURLToPath } from "url";
 import { createRequire } from "module";
 
-import { chmod } from "../lib/babel/util";
+import { chmod } from "../lib/babel/util.js";
 
 const require = createRequire(import.meta.url);
 

packages/babel-core/test/api.js

@@ -1,13 +1,13 @@
-import * as babel from "../lib/index";
+import * as babel from "../lib/index.js";
 import sourceMap from "source-map";
 import path from "path";
-import Plugin from "../lib/config/plugin";
+import Plugin from "../lib/config/plugin.js";
 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";
+import presetEnv from "../../babel-preset-env/lib/index.js";
+import pluginSyntaxFlow from "../../babel-plugin-syntax-flow/lib/index.js";
+import pluginFlowStripTypes from "../../babel-plugin-transform-flow-strip-types/lib/index.js";
 
 const cwd = path.dirname(fileURLToPath(import.meta.url));
 

packages/babel-core/test/assumptions.js

@@ -1,6 +1,6 @@
 import path from "path";
 import { fileURLToPath } from "url";
-import { loadOptions as loadOptionsOrig, transformSync } from "../lib";
+import { loadOptions as loadOptionsOrig, transformSync } from "../lib/index.js";
 import pluginCommonJS from "@babel/plugin-transform-modules-commonjs";
 
 const cwd = path.dirname(fileURLToPath(import.meta.url));

packages/babel-core/test/async.js

@@ -6,7 +6,7 @@ import {
   spawnTransformAsync,
   spawnTransformSync,
   supportsESM,
-} from "./helpers/esm";
+} from "./helpers/esm.js";
 
 const nodeGte8 = (...args) => {
   // "minNodeVersion": "8.0.0" <-- For Ctrl+F when dropping node 6

packages/babel-core/test/caching-api.js

@@ -1,6 +1,6 @@
 import gensync from "gensync";
-import { makeStrongCacheSync, makeStrongCache } from "../lib/config/caching";
-import { waitFor } from "../lib/gensync-utils/async";
+import { makeStrongCacheSync, makeStrongCache } from "../lib/config/caching.js";
+import { waitFor } from "../lib/gensync-utils/async.js";
 
 describe("caching API", () => {
   it("should allow permacaching with .forever()", () => {

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

@@ -2,12 +2,12 @@ import fs from "fs";
 import os from "os";
 import path from "path";
 import { fileURLToPath } from "url";
-import * as babel from "../lib";
+import * as babel from "../lib/index.js";
 import getTargets from "@babel/helper-compilation-targets";
 
 const dirname = path.dirname(fileURLToPath(import.meta.url));
 
-import { isMJS, loadOptionsAsync, skipUnsupportedESM } from "./helpers/esm";
+import { isMJS, loadOptionsAsync, skipUnsupportedESM } from "./helpers/esm.js";
 
 // TODO: In Babel 8, we can directly uses fs.promises which is supported by
 // node 8+

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

@@ -1,7 +1,7 @@
 import loadConfigRunner, {
   loadPartialConfig,
   createConfigItem,
-} from "../lib/config";
+} from "../lib/config/index.js";
 import path from "path";
 import { fileURLToPath } from "url";
 import { createRequire } from "module";
@@ -38,10 +38,10 @@ describe("@babel/core config loading", () => {
       filename: FILEPATH,
       presets: skipProgrammatic
         ? null
-        : [[require("./fixtures/config-loading/preset3"), {}]],
+        : [[require("./fixtures/config-loading/preset3.js"), {}]],
       plugins: skipProgrammatic
         ? null
-        : [[require("./fixtures/config-loading/plugin6"), {}]],
+        : [[require("./fixtures/config-loading/plugin6.js"), {}]],
     };
   }
 

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

@@ -4,7 +4,7 @@ import path from "path";
 import { fileURLToPath } from "url";
 import { createRequire } from "module";
 
-import * as babel from "../../lib";
+import * as babel from "../../lib/index.js";
 
 const require = createRequire(import.meta.url);
 const dirname = path.dirname(fileURLToPath(import.meta.url));

packages/babel-core/test/option-manager.js

@@ -1,4 +1,4 @@
-import { loadOptions as loadOptionsOrig } from "../lib";
+import { loadOptions as loadOptionsOrig } from "../lib/index.js";
 import path from "path";
 import { fileURLToPath } from "url";
 

packages/babel-core/test/parse.js

@@ -1,6 +1,6 @@
 import fs from "fs";
 import path from "path";
-import { parse } from "../lib";
+import { parse } from "../lib/index.js";
 import { fileURLToPath } from "url";
 import { createRequire } from "module";
 

packages/babel-core/test/path.js

@@ -1,5 +1,5 @@
-import { transform } from "../lib/index";
-import Plugin from "../lib/config/plugin";
+import { transform } from "../lib/index.js";
+import Plugin from "../lib/config/plugin.js";
 import { fileURLToPath } from "url";
 import path from "path";
 

packages/babel-core/test/resolution.js

@@ -1,4 +1,4 @@
-import * as babel from "../lib/index";
+import * as babel from "../lib/index.js";
 import path from "path";
 import { fileURLToPath } from "url";
 

packages/babel-core/test/targets.js

@@ -1,4 +1,4 @@
-import { loadOptions as loadOptionsOrig } from "../lib";
+import { loadOptions as loadOptionsOrig } from "../lib/index.js";
 import { join, dirname } from "path";
 import { fileURLToPath } from "url";
 

packages/babel-generator/test/arrow-functions.js

@@ -1,4 +1,4 @@
-import generate from "../lib";
+import generate from "../lib/index.js";
 import { parse } from "@babel/parser";
 
 describe("parameter parentheses", () => {

packages/babel-generator/test/index.js

@@ -1,5 +1,5 @@
-import Printer from "../lib/printer";
-import generate, { CodeGenerator } from "../lib";
+import Printer from "../lib/printer.js";
+import generate, { CodeGenerator } from "../lib/index.js";
 import { parse } from "@babel/parser";
 import * as t from "@babel/types";
 import fs from "fs";

packages/babel-helper-annotate-as-pure/test/index.js

@@ -1,4 +1,4 @@
-import annotateAsPure from "../";
+import annotateAsPure from "../lib/index.js";
 
 describe("@babel/helper-annotate-as-pure", () => {
   it("will add leading comment", () => {

packages/babel-helper-compilation-targets/test/browserslist-extends/browserslist-extends.spec.js

@@ -1,6 +1,6 @@
 import { dirname, resolve } from "path";
 import { fileURLToPath } from "url";
-import getTargets from "../../lib";
+import getTargets from "../../lib/index.js";
 
 const currentDir = dirname(fileURLToPath(import.meta.url));
 

packages/babel-helper-compilation-targets/test/custom-browserslist-env/custom-browserslist-env.spec.js

@@ -1,4 +1,4 @@
-import getTargets from "../..";
+import getTargets from "../../lib/index.js";
 import { fileURLToPath } from "url";
 import path from "path";
 

packages/babel-helper-compilation-targets/test/load-browserslist-package-json/load-browserslist-package-json.spec.js

@@ -1,4 +1,4 @@
-import getTargets from "../..";
+import getTargets from "../../lib/index.js";
 import { fileURLToPath } from "url";
 import path from "path";
 

packages/babel-helper-compilation-targets/test/load-browserslistrc/load-browserslistrc.spec.js

@@ -1,4 +1,4 @@
-import getTargets from "../..";
+import getTargets from "../../lib/index.js";
 import { fileURLToPath } from "url";
 import path from "path";
 

packages/babel-helper-compilation-targets/test/pretty.spec.js

@@ -1,4 +1,4 @@
-import { prettifyTargets, prettifyVersion } from "../lib/pretty";
+import { prettifyTargets, prettifyVersion } from "../lib/pretty.js";
 
 describe("pretty", () => {
   describe("prettifyVersion", () => {

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

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

packages/babel-helper-compilation-targets/test/utils.spec.js

@@ -1,4 +1,4 @@
-import { semverify } from "../lib/utils";
+import { semverify } from "../lib/utils.js";
 
 describe("utils", () => {
   describe("semverify", () => {

packages/babel-helper-module-imports/test/index.js

@@ -2,7 +2,7 @@ import * as babel from "@babel/core";
 import { fileURLToPath } from "url";
 import path from "path";
 
-import { ImportInjector } from "../";
+import { ImportInjector } from "../lib/index.js";
 
 const cwd = path.dirname(fileURLToPath(import.meta.url));
 

packages/babel-helpers/test/helpers/define-helper.js

@@ -1,6 +1,6 @@
 import path from "path";
 import template from "@babel/template";
-import helpers from "../../lib/helpers";
+import helpers from "../../lib/helpers.js";
 
 function getHelperId(dir, name) {
   const testName = path.basename(dir);

packages/babel-parser/test/attachComment-false.js

@@ -1,6 +1,6 @@
 import path from "path";
-import { runFixtureTestsWithoutExactASTMatch } from "./helpers/runFixtureTests";
-import { parseExpression } from "../lib";
+import { runFixtureTestsWithoutExactASTMatch } from "./helpers/runFixtureTests.js";
+import { parseExpression } from "../lib/index.js";
 import { fileURLToPath } from "url";
 
 runFixtureTestsWithoutExactASTMatch(

packages/babel-parser/test/error-codes.js

@@ -1,4 +1,4 @@
-import { parse } from "../lib";
+import { parse } from "../lib/index.js";
 
 describe("error codes", function () {
   it("raises an error with BABEL_PARSER_SOURCETYPE_MODULE_REQUIRED and reasonCode", function () {

packages/babel-parser/test/estree-throws.js

@@ -1,6 +1,6 @@
 import path from "path";
-import { runFixtureTestsWithoutExactASTMatch } from "./helpers/runFixtureTests";
-import { parse } from "../lib";
+import { runFixtureTestsWithoutExactASTMatch } from "./helpers/runFixtureTests.js";
+import { parse } from "../lib/index.js";
 import { fileURLToPath } from "url";
 
 runFixtureTestsWithoutExactASTMatch(

packages/babel-parser/test/expressions.js

@@ -1,6 +1,6 @@
 import path from "path";
-import { runFixtureTests } from "./helpers/runFixtureTests";
-import { parseExpression } from "../lib";
+import { runFixtureTests } from "./helpers/runFixtureTests.js";
+import { parseExpression } from "../lib/index.js";
 import { fileURLToPath } from "url";
 
 const fixtures = path.join(

packages/babel-parser/test/index.js

@@ -1,6 +1,6 @@
 import path from "path";
-import { runFixtureTests } from "./helpers/runFixtureTests";
-import { parse } from "../lib";
+import { runFixtureTests } from "./helpers/runFixtureTests.js";
+import { parse } from "../lib/index.js";
 import { fileURLToPath } from "url";
 
 const fixtures = path.join(

packages/babel-parser/test/options.js

@@ -1,4 +1,4 @@
-import { parse } from "../lib";
+import { parse } from "../lib/index.js";
 
 describe("options", () => {
   describe("strictMode", () => {

packages/babel-parser/test/plugin-options.js

@@ -1,4 +1,4 @@
-import { parse } from "../lib";
+import { parse } from "../lib/index.js";
 
 function getParser(code, plugins) {
   return () => parse(code, { plugins, sourceType: "module" });

packages/babel-parser/test/unit/tokenizer/types.js

@@ -1,4 +1,4 @@
-import { tt, tokenOperatorPrecedence } from "../../../src/tokenizer/types";
+import { tt, tokenOperatorPrecedence } from "../../../src/tokenizer/types.js";
 
 describe("token types", () => {
   it("should check if the binOp for relational === in", () => {

packages/babel-parser/test/unit/util/identifier.js

@@ -1,7 +1,7 @@
 import {
   isKeyword,
   keywordRelationalOperator,
-} from "../../../src/util/identifier";
+} from "../../../src/util/identifier.js";
 
 describe("identifier", () => {
   describe("isKeyword", () => {

packages/babel-parser/test/unit/util/location.js

@@ -1,4 +1,4 @@
-import { getLineInfo } from "../../../src/util/location";
+import { getLineInfo } from "../../../src/util/location.js";
 
 describe("getLineInfo", () => {
   const input = "a\nb\nc\nd\ne\nf\ng\nh\ni";

packages/babel-plugin-proposal-object-rest-spread/test/hasMoreThanOneBinding.test.js

@@ -1,5 +1,5 @@
 import { parse } from "@babel/parser";
-import shouldStoreRHSInTemporaryVariable from "../lib/shouldStoreRHSInTemporaryVariable";
+import shouldStoreRHSInTemporaryVariable from "../lib/shouldStoreRHSInTemporaryVariable.js";
 
 function getFistObjectPattern(program) {
   return parse(program, { sourceType: "module" }).program.body[0]