feat: pass defaultResolver into custom resolvers

CHANGELOG.md

@@ -2,6 +2,8 @@
 
 ### Features
 
+- `[jest-resolve]`: Pass default resolver into custom resolvers ([#7714](https://github.com/facebook/jest/pull/7714))
+
 ### Fixes
 
 ### Chore & Maintenance

e2e/__tests__/__snapshots__/moduleNameMapper.test.js.snap

@@ -30,6 +30,6 @@ FAIL __tests__/index.js
       12 | module.exports = () => 'test';
       13 | 
 
-      at createNoMappedModuleFoundError (../../packages/jest-resolve/build/index.js:435:17)
+      at createNoMappedModuleFoundError (../../packages/jest-resolve/build/index.js:436:17)
       at Object.require (index.js:10:1)
 `;

e2e/__tests__/__snapshots__/resolveNoFileExtensions.test.js.snap

@@ -33,6 +33,6 @@ FAIL __tests__/test.js
         |                  ^
       4 | 
 
-      at Resolver.resolveModule (../../packages/jest-resolve/build/index.js:202:17)
+      at Resolver.resolveModule (../../packages/jest-resolve/build/index.js:203:17)
       at Object.require (index.js:3:18)
 `;

packages/jest-resolve/src/__tests__/resolve.test.js

@@ -8,14 +8,16 @@
 
 'use strict';
 
-jest.mock('../__mocks__/userResolver');
+import fs from 'fs';
+import path from 'path';
+import {ModuleMap} from 'jest-haste-map';
+// eslint-disable-next-line import/default
+import Resolver from '../';
+import userResolver from '../__mocks__/userResolver';
+import nodeModulesPaths from '../nodeModulesPaths';
+import defaultResolver from '../defaultResolver';
 
-const fs = require('fs');
-const path = require('path');
-const ModuleMap = require('jest-haste-map').ModuleMap;
-const Resolver = require('../');
-const userResolver = require('../__mocks__/userResolver');
-const nodeModulesPaths = require('../nodeModulesPaths').default;
+jest.mock('../__mocks__/userResolver');
 
 beforeEach(() => {
   userResolver.mockClear();
@@ -69,12 +71,14 @@ describe('findNodeModule', () => {
 
     expect(newPath).toBe('module');
     expect(userResolver.mock.calls[0][0]).toBe('test');
-    expect(userResolver.mock.calls[0][1]).toEqual({
+    expect(userResolver.mock.calls[0][1]).toStrictEqual({
       basedir: '/',
       browser: true,
+      defaultResolver,
       extensions: ['js'],
       moduleDirectory: ['node_modules'],
       paths: (nodePaths || []).concat(['/something']),
+      rootDir: undefined,
     });
   });
 });

packages/jest-resolve/src/defaultResolver.js

@@ -19,6 +19,7 @@ import nodeModulesPaths from './nodeModulesPaths';
 type ResolverOptions = {|
   basedir: Path,
   browser?: boolean,
+  defaultResolver: typeof defaultResolver,
   extensions?: Array<string>,
   moduleDirectory?: Array<string>,
   paths?: ?Array<Path>,
@@ -33,6 +34,7 @@ export default function defaultResolver(
 
   return resolve(path, {
     basedir: options.basedir,
+    defaultResolver,
     extensions: options.extensions,
     moduleDirectory: options.moduleDirectory,
     paths: options.paths,

packages/jest-resolve/src/index.js

@@ -103,6 +103,7 @@ class Resolver {
       return resolver(path, {
         basedir: options.basedir,
         browser: options.browser,
+        defaultResolver,
         extensions: options.extensions,
         moduleDirectory: options.moduleDirectory,
         paths: paths ? (nodePaths || []).concat(paths) : nodePaths,

yarn.lock

@@ -3692,6 +3692,11 @@ core-js@^2.2.0, core-js@^2.2.2, core-js@^2.4.0, core-js@^2.4.1, core-js@^2.5.0,
   resolved "https://registry.yarnpkg.com/core-js/-/core-js-2.6.3.tgz#4b70938bdffdaf64931e66e2db158f0892289c49"
   integrity sha512-l00tmFFZOBHtYhN4Cz7k32VM7vTn3rE2ANjQDxdEN6zmXZ/xq1jQuutnmHvMG1ZJ7xd72+TA5YpUK8wz3rWsfQ==
 
+core-js@^2.5.0:
+  version "2.6.3"
+  resolved "https://registry.yarnpkg.com/core-js/-/core-js-2.6.3.tgz#4b70938bdffdaf64931e66e2db158f0892289c49"
+  integrity sha512-l00tmFFZOBHtYhN4Cz7k32VM7vTn3rE2ANjQDxdEN6zmXZ/xq1jQuutnmHvMG1ZJ7xd72+TA5YpUK8wz3rWsfQ==
+
 [email protected], core-util-is@~1.0.0:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/core-util-is/-/core-util-is-1.0.2.tgz#b5fd54220aa2bc5ab57aab7140c940754503c1a7"