feat: add default exportConditions for both jsdom and node environments

CHANGELOG.md

@@ -2,6 +2,9 @@
 
 ### Features
 
+- `[jest-environment-jsdom]` [**BREAKING**] Add default `browser` condtion to `exportConditions` for `jsdom` environment ([#11924](https://github.com/facebook/jest/pull/11924))
+- `[jest-environment-node]` [**BREAKING**] Add default `node` and `node-addon` conditions to `exportConditions` for `node` environment ([#11924](https://github.com/facebook/jest/pull/11924))
+
 ### Fixes
 
 ### Chore & Maintenance

e2e/resolve-conditions/__tests__/browser.test.mjs

@@ -4,7 +4,7 @@
  * This source code is licensed under the MIT license found in the
  * LICENSE file in the root directory of this source tree.
  *
- * @jest-environment <rootDir>/browser-env.js
+ * @jest-environment jest-environment-jsdom
  */
 
 import {fn} from 'fake-dual-dep';

e2e/resolve-conditions/browser-env.js → e2e/resolve-conditions/__tests__/deno.test.mjs

@@ -3,14 +3,12 @@
  *
  * This source code is licensed under the MIT license found in the
  * LICENSE file in the root directory of this source tree.
+ *
+ * @jest-environment <rootDir>/deno-env.js
  */
 
-'use strict';
-
-const BrowserEnv = require('jest-environment-jsdom');
+import {fn} from 'fake-dual-dep';
 
-module.exports = class BrowserEnvWithConditions extends BrowserEnv {
-  exportConditions() {
-    return ['browser'];
-  }
-};
+test('returns correct message', () => {
+  expect(fn()).toEqual('hello from deno');
+});

e2e/resolve-conditions/__tests__/node.test.mjs

@@ -4,7 +4,7 @@
  * This source code is licensed under the MIT license found in the
  * LICENSE file in the root directory of this source tree.
  *
- * @jest-environment <rootDir>/node-env.js
+ * @jest-environment jest-environment-node
  */
 
 import {fn} from 'fake-dual-dep';

e2e/resolve-conditions/node-env.js → e2e/resolve-conditions/deno-env.js

@@ -9,8 +9,8 @@
 
 const NodeEnv = require('jest-environment-node');
 
-module.exports = class NodeEnvWithConditions extends NodeEnv {
+module.exports = class DenoEnvWithConditions extends NodeEnv {
   exportConditions() {
-    return ['node'];
+    return ['deno'];
   }
 };

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

@@ -149,6 +149,10 @@ class JSDOMEnvironment implements JestEnvironment<number> {
     this.fakeTimersModern = null;
   }
 
+  exportConditions(): Array<string> {
+    return ['browser'];
+  }
+
   getVmContext(): Context | null {
     if (this.dom) {
       return this.dom.getInternalVMContext();

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

@@ -133,6 +133,10 @@ class NodeEnvironment implements JestEnvironment<Timer> {
     this.fakeTimersModern = null;
   }
 
+  exportConditions(): Array<string> {
+    return ['node', 'node-addons'];
+  }
+
   getVmContext(): Context | null {
     return this.context;
   }