jestjs · SimenB · Mar 25, 2021 · Mar 20, 2021 · Mar 20, 2021 · Mar 20, 2021
diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -38,7 +38,7 @@
 - `[babel-plugin-jest-hoist]` Add `__dirname` and `__filename` to whitelisted globals ([#10903](https://github.com/facebook/jest/pull/10903))
 - `[expect]` [**BREAKING**] Revise `expect.not.objectContaining()` to be the inverse of `expect.objectContaining()`, as documented. ([#10708](https://github.com/facebook/jest/pull/10708))
 - `[expect]` [**BREAKING**] Make `toContain` more strict with the received type ([#10119](https://github.com/facebook/jest/pull/10119) & [#10929](https://github.com/facebook/jest/pull/10929))
-- `[expect]` [**BREAKING**] `matcherResult` on `JestAssertionError` are now strings rather than functions ([#10989] (https://github.com/facebook/jest/pull/10989))
+- `[expect]` [**BREAKING**] `matcherResult` on `JestAssertionError` are now strings rather than functions ([#10989](https://github.com/facebook/jest/pull/10989))
 - `[jest-circus]` Fixed the issue of beforeAll & afterAll hooks getting executed even if it is inside a skipped `describe` block [#10451](https://github.com/facebook/jest/issues/10451)
 - `[jest-circus]` Fix `testLocation` on Windows when using `test.each` ([#10871](https://github.com/facebook/jest/pull/10871))
 - `[jest-cli]` Use testFailureExitCode when bailing from a failed test ([#10958](https://github.com/facebook/jest/pull/10958))
@@ -49,10 +49,11 @@
 - `[jest-each]` [**BREAKING**] Ignore excess words in headings ([#8766](https://github.com/facebook/jest/pull/8766))
 - `[jest-environment]` [**BREAKING**] Drop support for `runScript` for test environments ([#11155](https://github.com/facebook/jest/pull/11155))
 - `[jest-environment-jsdom]` Use inner realm’s `ArrayBuffer` constructor ([#10885](https://github.com/facebook/jest/pull/10885))
+- `[jest-environment-jsdom]` [**BREAKING**] Remove Node globals `setImmediate` and `clearImmediate` [#11222](https://github.com/facebook/jest/pull/11222)
 - `[jest-globals]` [**BREAKING**] Disallow return values other than a `Promise` from hooks and tests ([#10512](https://github.com/facebook/jest/pull/10512))
 - `[jest-globals]` [**BREAKING**] Disallow mixing a done callback and returning a `Promise` from hooks and tests ([#10512](https://github.com/facebook/jest/pull/10512))
 - `[jest-haste-map]` Vendor `NodeWatcher` from `sane` ([#10919](https://github.com/facebook/jest/pull/10919))
-- `[jest-jasmine2]` Fixed the issue of beforeAll & afterAll hooks getting executed even if it is inside a skipped `describe` block when it has child `tests` marked as either `only` or `todo` [#10451](https://github.com/facebook/jest/issues/10451)
+- `[jest-jasmine2]` Fixed the issue of `beforeAll` & `afterAll` hooks getting executed even if it is inside a skipped `describe` block when it has child `tests` marked as either `only` or `todo` [#10451](https://github.com/facebook/jest/issues/10451)
 - `[jest-jasmine2]` Fixed the issues of child `tests` marked with `only` or `todo` getting executed even if it is inside a skipped parent `describe` block [#10451](https://github.com/facebook/jest/issues/10451)
 - `[jest-reporter]` Handle empty files when reporting code coverage with V8 ([#10819](https://github.com/facebook/jest/pull/10819))
 - `[jest-resolve]` Replace read-pkg-up with escalade package ([#10781](https://github.com/facebook/jest/pull/10781))

diff --git a/e2e/env-test/__tests__/equivalent.test.js b/e2e/env-test/__tests__/equivalent.test.js
@@ -10,7 +10,9 @@ const {isArrayBuffer} = require('util').types;
 const isJSDOM =
   typeof window !== 'undefined' && typeof document !== 'undefined';
 
-test('Buffer', () => {
+const skipTestJSDOM = isJSDOM ? test.skip : test;
+
+skipTestJSDOM('Buffer', () => {
   const bufFromArray = Buffer.from([0x62, 0x75, 0x66, 0x66, 0x65, 0x72]);
   expect(isArrayBuffer(bufFromArray.buffer)).toBeTruthy();
   const bufFromArrayBuffer = Buffer.from(new ArrayBuffer(6));

diff --git a/packages/jest-environment-jsdom/src/index.ts b/packages/jest-environment-jsdom/src/index.ts
@@ -53,6 +53,9 @@ class JSDOMEnvironment implements JestEnvironment {
     this.global.Error.stackTraceLimit = 100;
     installCommonGlobals(global as any, config.globals);
 
+    // TODO: remove this ASAP, but it currntly causes tests to run really slow
+    global.Buffer = Buffer;
+
     // Report uncaught errors.
     this.errorEventListener = event => {
       if (userErrorListenerCount === 0 && event.error) {

diff --git a/packages/jest-environment-node/src/index.ts b/packages/jest-environment-node/src/index.ts
@@ -36,6 +36,9 @@ class NodeEnvironment implements JestEnvironment {
     global.clearTimeout = clearTimeout;
     global.setInterval = setInterval;
     global.setTimeout = setTimeout;
+    global.Buffer = Buffer;
+    global.setImmediate = setImmediate;
+    global.clearImmediate = clearImmediate;
     global.ArrayBuffer = ArrayBuffer;
     // TextEncoder (global or via 'util') references a Uint8Array constructor
     // different than the global one used by users in tests. This makes sure the
@@ -64,6 +67,7 @@ class NodeEnvironment implements JestEnvironment {
       global.AbortController = AbortController;
     }
     installCommonGlobals(global, config.globals);
+
     this.moduleMocker = new ModuleMocker(global);
 
     const timerIdToRef = (id: number) => ({

diff --git a/packages/jest-matcher-utils/src/deepCyclicCopyReplaceable.ts b/packages/jest-matcher-utils/src/deepCyclicCopyReplaceable.ts
@@ -7,9 +7,8 @@
 
 import {plugins} from 'pretty-format';
 
-const builtInObject = [
+const builtInObject: Array<unknown> = [
   Array,
-  Buffer,
   Date,
   Float32Array,
   Float64Array,
@@ -25,6 +24,10 @@ const builtInObject = [
   Uint8ClampedArray,
 ];
 
+if (typeof Buffer !== 'undefined') {
+  builtInObject.push(Buffer);
+}
+
 const isBuiltInObject = (object: any) =>
   builtInObject.includes(object.constructor);
 

diff --git a/packages/jest-util/src/installCommonGlobals.ts b/packages/jest-util/src/installCommonGlobals.ts
@@ -62,10 +62,5 @@ export default function (
     };
   });
 
-  // Forward some others (this breaks the sandbox but for now it's OK).
-  globalObject.Buffer = global.Buffer;
-  globalObject.setImmediate = global.setImmediate;
-  globalObject.clearImmediate = global.clearImmediate;
-
   return Object.assign(globalObject, deepCyclicCopy(globals));
 }
diff --git a/yarn.lock b/yarn.lock
@@ -4287,8 +4287,8 @@ __metadata:
   linkType: hard
 
 "@testing-library/dom@npm:^7.28.1":
-  version: 7.29.6
-  resolution: "@testing-library/dom@npm:7.29.6"
+  version: 7.30.1
+  resolution: "@testing-library/dom@npm:7.30.1"
   dependencies:
     "@babel/code-frame": ^7.10.4
     "@babel/runtime": ^7.12.5
@@ -4298,7 +4298,7 @@ __metadata:
     dom-accessibility-api: ^0.5.4
     lz-string: ^1.4.4
     pretty-format: ^26.6.2
-  checksum: 6102dabce8526f9ccfd4c4e08d60d1c7f2bd125482587cb4664cd652b9c00dd430faf5e08701513f3d5bfa90e89fdcca26313b9ffe644fd1936bbf449ac62a14
+  checksum: a886bdb20955e5f029fa10932184128dd701dac866dc8016e66f339d89ab5b63185c3584ea5eb2a5ffbcb779bad6952f1f0933cc47f6772450211cd85b55861e
   languageName: node
   linkType: hard