move to integration test

e2e/explicit-resource-management/__tests__/index.js

@@ -0,0 +1,56 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+('use strict');
+
+if (!Symbol.dispose) {
+  Object.defineProperty(Symbol, 'dispose', {
+    get() {
+      return Symbol.for('nodejs.dispose');
+    },
+  });
+}
+
+const TestClass = require('../');
+const localClass = new TestClass();
+
+it('restores a mock after a test if it is mocked with a `using` declaration', () => {
+  using mock = jest.spyOn(localClass, 'test').mockImplementation(() => 'ABCD');
+  expect(localClass.test()).toBe('ABCD');
+  expect(localClass.test).toHaveBeenCalledTimes(1);
+  expect(jest.isMockFunction(localClass.test)).toBeTruthy();
+});
+
+it('only sees the unmocked class', () => {
+  expect(localClass.test()).toBe('12345');
+  expect(localClass.test.mock).toBeUndefined();
+  expect(jest.isMockFunction(localClass.test)).toBeFalsy();
+});
+
+test('also works just with scoped code blocks', () => {
+  const scopedInstance = new TestClass();
+  {
+    using mock = jest
+      .spyOn(scopedInstance, 'test')
+      .mockImplementation(() => 'ABCD');
+    expect(scopedInstance.test()).toBe('ABCD');
+    expect(scopedInstance.test).toHaveBeenCalledTimes(1);
+    expect(jest.isMockFunction(scopedInstance.test)).toBeTruthy();
+  }
+  expect(scopedInstance.test()).toBe('12345');
+  expect(scopedInstance.test.mock).toBeUndefined();
+  expect(jest.isMockFunction(scopedInstance.test)).toBeFalsy();
+});
+
+it('jest.fn state should be restored with the `using` keyword', () => {
+  const mock = jest.fn();
+  {
+    using inScope = mock.mockReturnValue(2);
+    expect(inScope()).toBe(2);
+    expect(mock()).toBe(2);
+  }
+  expect(mock()).not.toBe(2);
+});

e2e/explicit-resource-management/babel.config.js

@@ -0,0 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+module.exports = {
+  plugins: ['@babel/plugin-proposal-explicit-resource-management'],
+};

e2e/explicit-resource-management/index.js

@@ -0,0 +1,12 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+module.exports = class Test {
+  test() {
+    return '12345';
+  }
+};

e2e/explicit-resource-management/package.json

@@ -0,0 +1,8 @@
+{
+  "jest": {
+    "testEnvironment": "node"
+  },
+  "dependencies": {
+    "@babel/plugin-proposal-explicit-resource-management": "^7.23.9"
+  }
+}

e2e/explicit-resource-management/yarn.lock

@@ -0,0 +1,52 @@
+# This file is generated by running "yarn install" inside your project.
+# Manual changes might be lost - proceed with caution!
+
+__metadata:
+  version: 6
+  cacheKey: 8
+
+"@babel/helper-plugin-utils@npm:^7.22.5":
+  version: 7.22.5
+  resolution: "@babel/helper-plugin-utils@npm:7.22.5"
+  checksum: c0fc7227076b6041acd2f0e818145d2e8c41968cc52fb5ca70eed48e21b8fe6dd88a0a91cbddf4951e33647336eb5ae184747ca706817ca3bef5e9e905151ff5
+  languageName: node
+  linkType: hard
+
+"@babel/plugin-proposal-explicit-resource-management@npm:^7.23.9":
+  version: 7.23.9
+  resolution: "@babel/plugin-proposal-explicit-resource-management@npm:7.23.9"
+  dependencies:
+    "@babel/helper-plugin-utils": ^7.22.5
+    "@babel/plugin-syntax-explicit-resource-management": ^7.23.3
+  peerDependencies:
+    "@babel/core": ^7.0.0-0
+  checksum: d7a37ea28178e251fe289895cf4a37fee47195122a3e172eb088be9b0a55d16d2b2ac3cd6569e9f94c9f9a7744a812f3eba50ec64e3d8f7a48a4e2b0f2caa959
+  languageName: node
+  linkType: hard
+
+"@babel/plugin-syntax-explicit-resource-management@npm:^7.23.3":
+  version: 7.23.3
+  resolution: "@babel/plugin-syntax-explicit-resource-management@npm:7.23.3"
+  dependencies:
+    "@babel/helper-plugin-utils": ^7.22.5
+  peerDependencies:
+    "@babel/core": ^7.0.0-0
+  checksum: 60306808e4680b180a2945d13d4edc7aba91bbd43b300271b89ebd3d3d0bc60f97c6eb7eaa7b9e2f7b61bb0111c24469846f636766517da5385351957c264eb9
+  languageName: node
+  linkType: hard
+
+"core-js@npm:^3.35.1":
+  version: 3.35.1
+  resolution: "core-js@npm:3.35.1"
+  checksum: e246af6b634be3763ffe3ce6ac4601b4dc5b928006fb6c95e5d08ecd82a2413bf36f00ffe178b89c9a8e94000288933a78a9881b2c9498e6cf312b031013b952
+  languageName: node
+  linkType: hard
+
+"root-workspace-0b6124@workspace:.":
+  version: 0.0.0-use.local
+  resolution: "root-workspace-0b6124@workspace:."
+  dependencies:
+    "@babel/plugin-proposal-explicit-resource-management": ^7.23.9
+    core-js: ^3.35.1
+  languageName: unknown
+  linkType: soft

e2e/global-setup/package.json

@@ -10,6 +10,7 @@
     "@babel/core": "^7.0.0",
     "@babel/preset-env": "^7.0.0",
     "@babel/preset-flow": "^7.0.0",
+    "@babel/plugin-proposal-explicit-resource-management": "^7.23.9",
     "jest-util": "*"
   }
 }

package.json

@@ -4,7 +4,6 @@
   "version": "0.0.0",
   "devDependencies": {
     "@babel/core": "^7.11.6",
-    "@babel/plugin-proposal-explicit-resource-management": "^7.23.9",
     "@babel/plugin-transform-modules-commonjs": "^7.1.0",
     "@babel/preset-env": "^7.1.0",
     "@babel/preset-react": "^7.12.1",

packages/jest-mock/src/__tests__/index.test.ts

@@ -10,17 +10,8 @@
 
 import * as util from 'util';
 import {type Context, createContext, runInContext, runInNewContext} from 'vm';
-import {onNodeVersions} from '@jest/test-utils';
 import {ModuleMocker, fn, mocked, spyOn} from '../';
 
-if (!Symbol.dispose) {
-  Object.defineProperty(Symbol, 'dispose', {
-    get() {
-      return Symbol.for('nodejs.dispose');
-    },
-  });
-}
-
 describe('moduleMocker', () => {
   let moduleMocker: ModuleMocker;
   let mockContext: Context;
@@ -2441,28 +2432,3 @@ test('`fn` and `spyOn` do not throw', () => {
     spyOn({apple: () => {}}, 'apple');
   }).not.toThrow();
 });
-
-onNodeVersions('>=18.0.0', () => {
-  describe('Explicit Resource Management', () => {
-    it('jest.fn state should be restored with the `using` keyword', () => {
-      const mock = jest.fn();
-      {
-        using inScope = mock.mockReturnValue(2);
-        expect(inScope()).toBe(2);
-        expect(mock()).toBe(2);
-      }
-      expect(mock()).not.toBe(2);
-    });
-
-    it('should be restored with the `using` keyword', () => {
-      {
-        using mockedLog = jest.spyOn(console, 'log');
-        expect(jest.isMockFunction(console.log)).toBeTruthy();
-
-        console.log('test');
-        expect(mockedLog).toHaveBeenCalled();
-      }
-      expect(jest.isMockFunction(console.log)).toBeFalsy();
-    });
-  });
-});

yarn.lock

@@ -690,18 +690,6 @@ __metadata:
   languageName: node
   linkType: hard
 
-"@babel/plugin-proposal-explicit-resource-management@npm:^7.23.9":
-  version: 7.23.9
-  resolution: "@babel/plugin-proposal-explicit-resource-management@npm:7.23.9"
-  dependencies:
-    "@babel/helper-plugin-utils": ^7.22.5
-    "@babel/plugin-syntax-explicit-resource-management": ^7.23.3
-  peerDependencies:
-    "@babel/core": ^7.0.0-0
-  checksum: d7a37ea28178e251fe289895cf4a37fee47195122a3e172eb088be9b0a55d16d2b2ac3cd6569e9f94c9f9a7744a812f3eba50ec64e3d8f7a48a4e2b0f2caa959
-  languageName: node
-  linkType: hard
-
 "@babel/plugin-proposal-export-default-from@npm:^7.0.0":
   version: 7.23.3
   resolution: "@babel/plugin-proposal-export-default-from@npm:7.23.3"
@@ -853,17 +841,6 @@ __metadata:
   languageName: node
   linkType: hard
 
-"@babel/plugin-syntax-explicit-resource-management@npm:^7.23.3":
-  version: 7.23.3
-  resolution: "@babel/plugin-syntax-explicit-resource-management@npm:7.23.3"
-  dependencies:
-    "@babel/helper-plugin-utils": ^7.22.5
-  peerDependencies:
-    "@babel/core": ^7.0.0-0
-  checksum: 60306808e4680b180a2945d13d4edc7aba91bbd43b300271b89ebd3d3d0bc60f97c6eb7eaa7b9e2f7b61bb0111c24469846f636766517da5385351957c264eb9
-  languageName: node
-  linkType: hard
-
 "@babel/plugin-syntax-export-default-from@npm:^7.0.0, @babel/plugin-syntax-export-default-from@npm:^7.23.3":
   version: 7.23.3
   resolution: "@babel/plugin-syntax-export-default-from@npm:7.23.3"
@@ -3023,7 +3000,6 @@ __metadata:
   resolution: "@jest/monorepo@workspace:."
   dependencies:
     "@babel/core": ^7.11.6
-    "@babel/plugin-proposal-explicit-resource-management": ^7.23.9
     "@babel/plugin-transform-modules-commonjs": ^7.1.0
     "@babel/preset-env": ^7.1.0
     "@babel/preset-react": ^7.12.1
@@ -3101,7 +3077,7 @@ __metadata:
     tempy: ^1.0.0
     ts-node: ^10.5.0
     tstyche: ^1.0.0-beta.9
-    typescript: ^5.2.2
+    typescript: ^5.0.4
     webpack: ^5.68.0
     webpack-node-externals: ^3.0.0
     which: ^4.0.0
@@ -20358,7 +20334,7 @@ __metadata:
   languageName: node
   linkType: hard
 
-"typescript@npm:5.3.3, typescript@npm:^5.0.4, typescript@npm:^5.2.2":
+"typescript@npm:5.3.3, typescript@npm:^5.0.4":
   version: 5.3.3
   resolution: "typescript@npm:5.3.3"
   bin:
@@ -20368,7 +20344,7 @@ __metadata:
   languageName: node
   linkType: hard
 
-"typescript@patch:[email protected]#~builtin<compat/typescript>, typescript@patch:typescript@^5.0.4#~builtin<compat/typescript>, typescript@patch:typescript@^5.2.2#~builtin<compat/typescript>":
+"typescript@patch:[email protected]#~builtin<compat/typescript>, typescript@patch:typescript@^5.0.4#~builtin<compat/typescript>":
   version: 5.3.3
   resolution: "typescript@patch:typescript@npm%3A5.3.3#~builtin<compat/typescript>::version=5.3.3&hash=e012d7"
   bin: