feat: upgrade to JSDOM 16

CHANGELOG.md

@@ -2,6 +2,8 @@
 
 ### Features
 
+- `[jest-environment-jsdom]` [**BREAKING**] Upgrade `jsdom` to v16 ([#9606](https://github.com/facebook/jest/pull/9606))
+
 ### Fixes
 
 - `[jest-circus]` [**BREAKING**] Fail tests if a test takes a done callback and have return values ([#9129](https://github.com/facebook/jest/pull/9129))

e2e/__tests__/__snapshots__/consoleLogOutputWhenRunInBand.test.ts.snap

@@ -20,6 +20,6 @@ exports[`prints console.logs when run with forceExit 3`] = `
   console.log
     Hey
 
-      at Object.<anonymous> (__tests__/a-banana.js:1:1)
+      at Object.log (__tests__/a-banana.js:1:30)
 
 `;

e2e/__tests__/consoleLogOutputWhenRunInBand.test.ts

@@ -15,8 +15,6 @@ const DIR = path.resolve(__dirname, '../console-log-output-when-run-in-band');
 beforeEach(() => cleanup(DIR));
 afterAll(() => cleanup(DIR));
 
-const nodeMajorVersion = Number(process.versions.node.split('.')[0]);
-
 test('prints console.logs when run with forceExit', () => {
   writeFiles(DIR, {
     '__tests__/a-banana.js': `
@@ -25,26 +23,14 @@ test('prints console.logs when run with forceExit', () => {
     'package.json': '{}',
   });
 
-  const {stderr, exitCode, ...res} = runJest(DIR, [
+  const {stderr, stdout, exitCode} = runJest(DIR, [
     '-i',
     '--ci=false',
     '--forceExit',
   ]);
-  let {stdout} = res;
 
   const {rest, summary} = extractSummary(stderr);
 
-  if (nodeMajorVersion < 12) {
-    expect(stdout).toContain(
-      'at Object.<anonymous>.test (__tests__/a-banana.js:1:1)',
-    );
-
-    stdout = stdout.replace(
-      'at Object.<anonymous>.test (__tests__/a-banana.js:1:1)',
-      'at Object.<anonymous> (__tests__/a-banana.js:1:1)',
-    );
-  }
-
   expect(exitCode).toBe(0);
   expect(wrap(rest)).toMatchSnapshot();
   expect(wrap(summary)).toMatchSnapshot();

e2e/__tests__/jestEnvironmentJsdom.test.ts

@@ -0,0 +1,28 @@
+/**
+ * Copyright (c) Facebook, Inc. and its affiliates. All Rights Reserved.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+import * as path from 'path';
+import {tmpdir} from 'os';
+import {cleanup, writeFiles} from '../Utils';
+import runJest from '../runJest';
+
+const DIR = path.resolve(tmpdir(), 'jest_environment_jsdom_test');
+
+beforeEach(() => cleanup(DIR));
+afterAll(() => cleanup(DIR));
+
+test('check is not leaking memory', () => {
+  writeFiles(DIR, {
+    '__tests__/a.test.js': `test('a', () => console.log('a'));`,
+    '__tests__/b.test.js': `test('b', () => console.log('b'));`,
+    'package.json': JSON.stringify({jest: {testEnvironment: 'jsdom'}}),
+  });
+
+  const {stderr} = runJest(DIR, ['--detect-leaks', '--runInBand']);
+  expect(stderr).toMatch(/PASS\s__tests__\/a.test.js/);
+  expect(stderr).toMatch(/PASS\s__tests__\/b.test.js/);
+});

packages/jest-environment-jsdom/package.json

@@ -15,10 +15,10 @@
     "@jest/types": "^25.5.0",
     "jest-mock": "^25.5.0",
     "jest-util": "^25.5.0",
-    "jsdom": "^15.2.1"
+    "jsdom": "^16.2.2"
   },
   "devDependencies": {
-    "@types/jsdom": "^12.2.4"
+    "@types/jsdom": "^16.2.1"
   },
   "engines": {
     "node": ">= 10.14.2"

packages/jest-environment-jsdom/src/index.ts

@@ -47,6 +47,10 @@ class JSDOMEnvironment implements JestEnvironment {
       throw new Error('JSDOM did not return a Window object');
     }
 
+    // In the `jsdom@16`, ArrayBuffer was not added to Window, ref: https://github.com/jsdom/jsdom/commit/3a4fd6258e6b13e9cf8341ddba60a06b9b5c7b5b
+    // Install ArrayBuffer to Window to fix it. Make sure the test is passed, ref: https://github.com/facebook/jest/pull/7626
+    global.ArrayBuffer = ArrayBuffer;
+
     // Node's error-message stack size is limited at 10, but it's pretty useful
     // to see more than that when a test fails.
     this.global.Error.stackTraceLimit = 100;
@@ -126,7 +130,14 @@ class JSDOMEnvironment implements JestEnvironment {
 
   runScript<T = unknown>(script: Script): T | null {
     if (this.dom) {
-      return this.dom.runVMScript(script) as any;
+      return script.runInContext(this.dom.getInternalVMContext());
+    }
+    return null;
+  }
+
+  getVmContext() {
+    if (this.dom) {
+      return this.dom.getInternalVMContext();
     }
     return null;
   }