chore: remove support for browser field in config

CHANGELOG.md

@@ -4,6 +4,8 @@
 
 ### Fixes
 
+- `[jest-config, jest-resolve]` [**BREAKING**] Remove support for `browser` field ([#9943](https://github.com/facebook/jest/pull/9943))
+
 ### Chore & Maintenance
 
 ### Performance

TestUtils.ts

@@ -67,7 +67,6 @@ const DEFAULT_GLOBAL_CONFIG: Config.GlobalConfig = {
 
 const DEFAULT_PROJECT_CONFIG: Config.ProjectConfig = {
   automock: false,
-  browser: false,
   cache: false,
   cacheDirectory: '/test_cache_dir/',
   clearMocks: false,

docs/Configuration.md

@@ -105,12 +105,6 @@ Default: `0`
 
 By default, Jest runs all tests and produces all errors into the console upon completion. The bail config option can be used here to have Jest stop running tests after `n` failures. Setting bail to `true` is the same as setting bail to `1`.
 
-### `browser` [boolean]
-
-Default: `false`
-
-Respect Browserify's [`"browser"` field](https://github.com/substack/browserify-handbook#browser-field) in `package.json` when resolving modules. Some modules export different versions based on whether they are operating in Node or a browser.
-
 ### `cacheDirectory` [string]
 
 Default: `"/tmp/<path>"`
@@ -689,7 +683,6 @@ This option allows the use of a custom resolver. This resolver must be a node mo
 ```json
 {
   "basedir": string,
-  "browser": bool,
   "defaultResolver": "function(request, options)",
   "extensions": [string],
   "moduleDirectory": [string],

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

@@ -5,7 +5,6 @@ exports[`--showConfig outputs config info and exits 1`] = `
   "configs": [
     {
       "automock": false,
-      "browser": false,
       "cache": false,
       "cacheDirectory": "/tmp/jest",
       "clearMocks": false,

packages/jest-config/src/Defaults.ts

@@ -15,7 +15,6 @@ const NODE_MODULES_REGEXP = replacePathSepForRegex(NODE_MODULES);
 const defaultOptions: Config.DefaultOptions = {
   automock: false,
   bail: 0,
-  browser: false,
   cache: true,
   cacheDirectory: getCacheDirectory(),
   changedFilesWithAncestor: false,

packages/jest-config/src/Deprecated.ts

@@ -11,6 +11,18 @@ import prettyFormat = require('pretty-format');
 const format = (value: unknown) => prettyFormat(value, {min: true});
 
 export default {
+  browser: () => `  Option ${chalk.bold(
+    '"browser"',
+  )} has been deprecated. Please install \`browser-resolve\` and use the \`resolver\` option.
+
+  Jest now treats your current configuration as:
+  {
+    ${chalk.bold('"resolve"')}: ${chalk.bold('"browser-resolve"')}
+  }
+
+  Please update your configuration.
+  `,
+
   mapCoverage: () => `  Option ${chalk.bold(
     '"mapCoverage"',
   )} has been removed, as it's no longer necessary.

packages/jest-config/src/Descriptions.ts

@@ -10,7 +10,6 @@ import type {Config} from '@jest/types';
 const descriptions: {[key in keyof Config.InitialOptions]: string} = {
   automock: 'All imported modules in your tests should be mocked automatically',
   bail: 'Stop running tests after `n` failures',
-  browser: 'Respect "browser" field in package.json when resolving modules',
   cacheDirectory:
     'The directory where Jest should store its cached dependency information',
   clearMocks: 'Automatically clear mock calls and instances between every test',

packages/jest-config/src/ValidConfig.ts

@@ -15,7 +15,6 @@ const NODE_MODULES_REGEXP = replacePathSepForRegex(NODE_MODULES);
 const initialOptions: Config.InitialOptions = {
   automock: false,
   bail: multipleValidOptions(false, 0),
-  browser: false,
   cache: true,
   cacheDirectory: '/tmp/user/jest',
   changedFilesWithAncestor: false,

packages/jest-config/src/__tests__/normalize.test.js

@@ -154,20 +154,6 @@ describe('automock', () => {
   });
 });
 
-describe('browser', () => {
-  it('falsy browser is not overwritten', () => {
-    const {options} = normalize(
-      {
-        browser: true,
-        rootDir: '/root/path/foo',
-      },
-      {},
-    );
-
-    expect(options.browser).toBe(true);
-  });
-});
-
 describe('collectCoverageOnlyFrom', () => {
   it('normalizes all paths relative to rootDir', () => {
     const {options} = normalize(

packages/jest-config/src/index.ts

@@ -163,7 +163,6 @@ const groupOptions = (
   }),
   projectConfig: Object.freeze({
     automock: options.automock,
-    browser: options.browser,
     cache: options.cache,
     cacheDirectory: options.cacheDirectory,
     clearMocks: options.clearMocks,

packages/jest-config/src/normalize.ts

@@ -869,7 +869,6 @@ export default function normalize(
         break;
       }
       case 'automock':
-      case 'browser':
       case 'cache':
       case 'changedSince':
       case 'changedFilesWithAncestor':

packages/jest-resolve/package.json

@@ -18,7 +18,6 @@
   },
   "dependencies": {
     "@jest/types": "^25.5.0",
-    "browser-resolve": "^1.11.3",
     "chalk": "^3.0.0",
     "graceful-fs": "^4.2.4",
     "jest-pnp-resolver": "^1.2.1",
@@ -28,7 +27,6 @@
     "slash": "^3.0.0"
   },
   "devDependencies": {
-    "@types/browser-resolve": "^1.11.0",
     "@types/graceful-fs": "^4.1.3",
     "@types/resolve": "^1.14.0",
     "jest-haste-map": "^25.5.1"

packages/jest-resolve/src/defaultResolver.ts

@@ -7,7 +7,6 @@
 
 import * as fs from 'graceful-fs';
 import {sync as resolveSync} from 'resolve';
-import {sync as browserResolve} from 'browser-resolve';
 import {sync as realpath} from 'realpath-native';
 import pnpResolver from 'jest-pnp-resolver';
 import type {Config} from '@jest/types';
@@ -31,9 +30,7 @@ export default function defaultResolver(
     return pnpResolver(path, options);
   }
 
-  const resolve = options.browser ? browserResolve : resolveSync;
-
-  const result = resolve(path, {
+  const result = resolveSync(path, {
     basedir: options.basedir,
     extensions: options.extensions,
     isDirectory,

packages/jest-resolve/src/index.ts

@@ -62,7 +62,6 @@ class Resolver {
 
   constructor(moduleMap: ModuleMap, options: ResolverConfig) {
     this._options = {
-      browser: options.browser,
       defaultPlatform: options.defaultPlatform,
       extensions: options.extensions,
       hasCoreModules:
@@ -184,7 +183,6 @@ class Resolver {
     const resolveNodeModule = (name: Config.Path, throwIfNotFound = false) =>
       Resolver.findNodeModule(name, {
         basedir: dirname,
-        browser: this._options.browser,
         extensions,
         moduleDirectory,
         paths,
@@ -438,7 +436,6 @@ class Resolver {
               this.getModule(updatedName) ||
               Resolver.findNodeModule(updatedName, {
                 basedir: dirname,
-                browser: this._options.browser,
                 extensions,
                 moduleDirectory,
                 paths,

packages/jest-resolve/src/types.ts

@@ -8,7 +8,6 @@
 import type {Config} from '@jest/types';
 
 export type ResolverConfig = {
-  browser?: boolean;
   defaultPlatform?: string | null;
   extensions: Array<string>;
   hasCoreModules: boolean;

packages/jest-runtime/src/index.ts

@@ -303,7 +303,6 @@ class Runtime {
     moduleMap: HasteMap.ModuleMap,
   ): Resolver {
     return new Resolver(moduleMap, {
-      browser: config.browser,
       defaultPlatform: config.haste.defaultPlatform,
       extensions: config.moduleFileExtensions.map(extension => '.' + extension),
       hasCoreModules: true,

packages/jest-types/src/Config.ts

@@ -34,7 +34,6 @@ export interface ConfigGlobals {
 export type DefaultOptions = {
   automock: boolean;
   bail: number;
-  browser: boolean;
   cache: boolean;
   cacheDirectory: Path;
   changedFilesWithAncestor: boolean;
@@ -99,7 +98,6 @@ export type InitialOptionsWithRootDir = InitialOptions &
 export type InitialOptions = Partial<{
   automock: boolean;
   bail: boolean | number;
-  browser: boolean;
   cache: boolean;
   cacheDirectory: Path;
   clearMocks: boolean;
@@ -301,7 +299,6 @@ export type GlobalConfig = {
 
 export type ProjectConfig = {
   automock: boolean;
-  browser: boolean;
   cache: boolean;
   cacheDirectory: Path;
   clearMocks: boolean;
@@ -360,7 +357,6 @@ export type Argv = Arguments<
     all: boolean;
     automock: boolean;
     bail: boolean | number;
-    browser: boolean;
     cache: boolean;
     cacheDirectory: string;
     changedFilesWithAncestor: boolean;

yarn.lock

@@ -2217,13 +2217,6 @@
   resolved "https://registry.yarnpkg.com/@types/braces/-/braces-3.0.0.tgz#7da1c0d44ff1c7eb660a36ec078ea61ba7eb42cb"
   integrity sha512-TbH79tcyi9FHwbyboOKeRachRq63mSuWYXOflsNO9ZyE5ClQ/JaozNKl+aWUq87qPNsXasXxi2AbgfwIJ+8GQw==
 
-"@types/browser-resolve@^1.11.0":
-  version "1.11.0"
-  resolved "https://registry.yarnpkg.com/@types/browser-resolve/-/browser-resolve-1.11.0.tgz#28c427182a6e340b3d7082b62da8128c562f04d6"
-  integrity sha512-fI2q5j/5w2TuO+lIGj7bMcvOQQCo5Eq71OLiWttohpp4xW6xhA9ltN2ielMSvl5ochAIY0Z3E8LtVRMIGLYy2w==
-  dependencies:
-    "@types/resolve" "*"
-
 "@types/cheerio@^0.22.8":
   version "0.22.17"
   resolved "https://registry.yarnpkg.com/@types/cheerio/-/cheerio-0.22.17.tgz#e54f71c3135f71ebc16c8dc62edad533872c9e72"
@@ -2514,7 +2507,7 @@
     "@types/prop-types" "*"
     csstype "^2.2.0"
 
-"@types/resolve@*", "@types/resolve@^1.14.0":
+"@types/resolve@^1.14.0":
   version "1.14.0"
   resolved "https://registry.yarnpkg.com/@types/resolve/-/resolve-1.14.0.tgz#c95d696264f8e53e764a7c0b83e9317b458b76c3"
   integrity sha512-bmjNBW6tok+67iOsASeYSJxSgY++BIR35nGyGLORTDirhra9reJ0shgGL3U7KPDUbOBCx8JrlCjd4d/y5uiMRQ==
@@ -3818,13 +3811,6 @@ browser-process-hrtime@^1.0.0:
   resolved "https://registry.yarnpkg.com/browser-process-hrtime/-/browser-process-hrtime-1.0.0.tgz#3c9b4b7d782c8121e56f10106d84c0d0ffc94626"
   integrity sha512-9o5UecI3GhkpM6DrXr69PblIuWxPKk9Y0jHBRhdocZ2y7YECBFCsHm79Pr3OyR2AvjhDkabFJaDJMYRazHgsow==
 
-browser-resolve@^1.11.3:
-  version "1.11.3"
-  resolved "https://registry.yarnpkg.com/browser-resolve/-/browser-resolve-1.11.3.tgz#9b7cbb3d0f510e4cb86bdbd796124d28b5890af6"
-  integrity sha512-exDi1BYWB/6raKHmDTCicQfTkqwN5fioMFV4j8BsfMU4R2DK/QfZfK7kOVkmWCNANf0snkBzqGqAJBao9gZMdQ==
-  dependencies:
-    resolve "1.1.7"
-
 browser-stdout@1.3.1:
   version "1.3.1"
   resolved "https://registry.yarnpkg.com/browser-stdout/-/browser-stdout-1.3.1.tgz#baa559ee14ced73452229bad7326467c61fabd60"
@@ -12731,11 +12717,6 @@ resolve-url@^0.2.1:
   resolved "https://registry.yarnpkg.com/resolve-url/-/resolve-url-0.2.1.tgz#2c637fe77c893afd2a663fe21aa9080068e2052a"
   integrity sha1-LGN/53yJOv0qZj/iGqkIAGjiBSo=
 
-resolve@1.1.7:
-  version "1.1.7"
-  resolved "https://registry.yarnpkg.com/resolve/-/resolve-1.1.7.tgz#203114d82ad2c5ed9e8e0411b3932875e889e97b"
-  integrity sha1-IDEU2CrSxe2ejgQRs5ModeiJ6Xs=
-
 resolve@^1.1.6, resolve@^1.10.0, resolve@^1.12.0, resolve@^1.13.1, resolve@^1.15.0, resolve@^1.15.1, resolve@^1.17.0, resolve@^1.3.2, resolve@^1.5.0, resolve@^1.8.1:
   version "1.17.0"
   resolved "https://registry.yarnpkg.com/resolve/-/resolve-1.17.0.tgz#b25941b54968231cc2d1bb76a79cb7f2c0bf8444"