fix: call custom resolver with node.js modules

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

@@ -399,6 +399,21 @@ describe('resolveModule', () => {
     expect(resolvedWithSlash).toBe(fooSlashIndex);
     expect(resolvedWithSlash).toBe(resolvedWithDot);
   });
+
+  it('custom resolver can resolve node modules', () => {
+    userResolver.mockImplementation(() => 'module');
+
+    const moduleMap = ModuleMap.create('/');
+    const resolver = new Resolver(moduleMap, {
+      extensions: ['.js'],
+      resolver: require.resolve('../__mocks__/userResolver'),
+    } as ResolverConfig);
+    const src = require.resolve('../');
+    resolver.resolveModule(src, 'fs');
+
+    expect(userResolver).toHaveBeenCalled();
+    expect(userResolver.mock.calls[0][0]).toBe('fs');
+  });
 });
 
 describe('resolveModuleAsync', () => {

packages/jest-resolve/src/resolver.ts

@@ -216,9 +216,9 @@ export default class Resolver {
     // ignore all modules that look like node modules (ie. are not relative
     // requires). This enables us to speed up resolution when we build a
     // dependency graph because we don't have to look at modules that may not
-    // exist and aren't mocked.
+    // exist and aren't mocked.waq
     const resolveNodeModule = (name: string, throwIfNotFound = false) => {
-      if (this.isCoreModule(name)) {
+      if (this.isCoreModule(name) && !this._options.resolver) {
         return name;
       }
 
@@ -292,7 +292,7 @@ export default class Resolver {
     // dependency graph because we don't have to look at modules that may not
     // exist and aren't mocked.
     const resolveNodeModule = async (name: string, throwIfNotFound = false) => {
-      if (this.isCoreModule(name)) {
+      if (this.isCoreModule(name) && !this._options.resolver) {
         return name;
       }