fixup! test_runner: refactor mock_loader

Author: aduh95

test/parallel/test-runner-module-mocking.js

@@ -10,7 +10,7 @@ const fixtures = require('../common/fixtures');
 const assert = require('node:assert');
 const { relative } = require('node:path');
 const { test } = require('node:test');
-const { fileURLToPath, pathToFileURL } = require('node:url');
+const { pathToFileURL } = require('node:url');
 
 test('input validation', async (t) => {
   await t.test('throws if specifier is not a string', (t) => {
@@ -514,21 +514,41 @@ test('CJS mocks can be used by both module systems', async (t) => {
   const cjsMock = t.mock.module(cjsFixture, {
     namedExports: { fn() { return 42; } },
   });
-  let esmImpl = await import(pathToFileURL(cjsFixture));
+  let esmImpl = await import(cjsFixture);
   let cjsImpl = require(cjsFixture);
 
   assert.strictEqual(esmImpl.fn(), 42);
   assert.strictEqual(cjsImpl.fn(), 42);
 
   cjsMock.restore();
 
-  esmImpl = await import(pathToFileURL(cjsFixture));
+  esmImpl = await import(cjsFixture);
   cjsImpl = require(cjsFixture);
 
   assert.strictEqual(esmImpl.default.string, 'original cjs string');
   assert.strictEqual(cjsImpl.string, 'original cjs string');
 });
 
+test('ESM mocks can be used by both module systems', async (t) => {
+  const esmFixture = fixtures.path('module-mocking', 'basic-esm.mjs');
+  const esmMock = t.mock.module(esmFixture, {
+    namedExports: { fn() { return 42; } },
+  });
+
+  let cjsImpl = require(esmFixture);
+  let esmImpl = await import(esmFixture);
+
+  assert.strictEqual(cjsImpl.fn(), 42);
+  assert.strictEqual(esmImpl.fn(), 42);
+
+  esmMock.restore();
+  cjsImpl = require(esmFixture);
+  esmImpl = await import(esmFixture);
+
+  assert.strictEqual(esmImpl.string, 'original esm string');
+  assert.strictEqual(cjsImpl.string, 'original esm string');
+});
+
 test('relative paths can be used by both module systems', async (t) => {
   const fixture = relative(
     __dirname, fixtures.path('module-mocking', 'basic-esm.mjs')
@@ -566,7 +586,9 @@ test('node_modules can be used by both module systems', async (t) => {
 });
 
 test('file:// imports are supported in ESM only', async (t) => {
-  const fixture = fixtures.fileURL('module-mocking', 'basic-esm.mjs').href;
+  const fixture = pathToFileURL(
+    fixtures.path('module-mocking', 'basic-esm.mjs')
+  ).href;
   const mock = t.mock.module(fixture, {
     namedExports: { fn() { return 42; } },
   });
@@ -582,9 +604,9 @@ test('file:// imports are supported in ESM only', async (t) => {
 });
 
 test('mocked modules do not impact unmocked modules', async (t) => {
-  const mockedFixture = fixtures.fileURL('module-mocking', 'basic-cjs.js');
-  const unmockedFixture = fixtures.fileURL('module-mocking', 'basic-esm.mjs');
-  t.mock.module(`${mockedFixture}`, {
+  const mockedFixture = fixtures.path('module-mocking', 'basic-cjs.js');
+  const unmockedFixture = fixtures.path('module-mocking', 'basic-esm.mjs');
+  t.mock.module(mockedFixture, {
     namedExports: { fn() { return 42; } },
   });
   const mockedImpl = await import(mockedFixture);
@@ -603,18 +625,18 @@ test('defaultExports work with CJS mocks in both module systems', async (t) => {
   assert.strictEqual(original.string, 'original cjs string');
   t.mock.module(fixture, { defaultExport });
   assert.strictEqual(require(fixture), defaultExport);
-  assert.strictEqual((await import(pathToFileURL(fixture))).default, defaultExport);
+  assert.strictEqual((await import(fixture)).default, defaultExport);
 });
 
 test('defaultExports work with ESM mocks in both module systems', async (t) => {
-  const fixture = fixtures.fileURL('module-mocking', 'basic-esm.mjs');
+  const fixture = fixtures.path('module-mocking', 'basic-esm.mjs');
   const original = await import(fixture);
   const defaultExport = Symbol('default');
 
   assert.strictEqual(original.string, 'original esm string');
-  t.mock.module(`${fixture}`, { defaultExport });
+  t.mock.module(fixture, { defaultExport });
   assert.strictEqual((await import(fixture)).default, defaultExport);
-  assert.strictEqual(require(fileURLToPath(fixture)), defaultExport);
+  assert.strictEqual(require(fixture), defaultExport);
 });
 
 test('wrong import syntax should throw error after module mocking.', async () => {