test(e2e): for pathsToModuleNameMapper in esm project

e2e/__tests__/native-esm-ts.test.ts

@@ -8,7 +8,7 @@ onNodeVersions('>=12.16.0', () => {
     })
 
     expect(exitCode).toBe(0)
-    expect(json.numTotalTests).toBe(3)
-    expect(json.numPassedTests).toBe(3)
+    expect(json.numTotalTests).toBe(4)
+    expect(json.numPassedTests).toBe(4)
   })
 })

e2e/native-esm-ts/__tests__/native-esm-ts.spec.ts

@@ -1,6 +1,7 @@
 import { test, expect } from '@jest/globals'
 
-import { double } from '../double'
+import { double } from '../double.js'
+import { quadruple } from '../quadruple/index.js'
 import { triple } from '../triple.mjs'
 
 test('double', () => {
@@ -11,6 +12,10 @@ test('triple', () => {
   expect(triple(2)).toBe(6)
 })
 
+test('quadruple', () => {
+  expect(quadruple(2)).toBe(8)
+})
+
 test('import.meta', () => {
   expect(typeof import.meta.url).toBe('string')
 })

e2e/native-esm-ts/jest-isolated.config.js

@@ -1,7 +1,7 @@
-/** @type {import('../../dist').InitialOptionsTsJest} */
-module.exports = {
-  extensionsToTreatAsEsm: ['.ts'],
-  resolver: '<rootDir>/mjs-resolver.ts',
+import config from './jest.config.js'
+
+export default {
+  ...config,
   transform: {
     '^.+\\.m?tsx?$': [
       '<rootDir>/../../legacy.js',

e2e/native-esm-ts/jest.config.js

@@ -0,0 +1,23 @@
+import { pathsToModuleNameMapper } from '../../dist/index.js'
+import { createRequire } from 'module'
+
+const require = createRequire(import.meta.url)
+const tsConfig = require('./tsconfig.json')
+
+/** @type {import('../../dist').InitialOptionsTsJest} */
+export default {
+  extensionsToTreatAsEsm: ['.ts'],
+  resolver: '<rootDir>/mjs-resolver.ts',
+  moduleNameMapper: pathsToModuleNameMapper(tsConfig.compilerOptions.paths, {
+    prefix: '<rootDir>',
+    removeJsExtension: true,
+  }),
+  transform: {
+    '^.+\\.m?tsx?$': [
+      '<rootDir>/../../legacy.js',
+      {
+        useESM: true,
+      },
+    ],
+  },
+}

e2e/native-esm-ts/package.json

@@ -2,14 +2,5 @@
   "type": "module",
   "devDependencies": {
     "@jest/globals": "^29.0.2"
-  },
-  "jest": {
-    "extensionsToTreatAsEsm": [".ts"],
-    "resolver": "<rootDir>/mjs-resolver.ts",
-    "transform": {
-      "^.+\\.m?tsx?$": ["<rootDir>/../../legacy.js", {
-        "useESM": true
-      }]
-    }
   }
 }

e2e/native-esm-ts/quadruple/calculate.ts

@@ -0,0 +1,2 @@
+const calculate = (x: number) => x * 4
+export default calculate

e2e/native-esm-ts/quadruple/index.ts

@@ -0,0 +1 @@
+export { default as quadruple } from '@quadruple/calculate.js'

e2e/native-esm-ts/tsconfig.json

@@ -3,6 +3,9 @@
     "module": "Node16",
     "target": "ESNext",
     "moduleResolution": "Node16",
-    "esModuleInterop": true
+    "esModuleInterop": true,
+    "paths": {
+      "@quadruple/*": ["quadruple/*"]
+    }
   }
 }