From 76b2b750712973106731172dd0c5d24250f9f63b Mon Sep 17 00:00:00 2001
From: Simen Bekkhus <sbekkhus91@gmail.com>
Date: Sun, 14 Mar 2021 11:07:36 +0100
Subject: [PATCH] fix repl

---
 packages/jest-repl/src/__tests__/jest_repl.test.js | 2 +-
 packages/jest-repl/src/cli/repl.ts                 | 3 ++-
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/packages/jest-repl/src/__tests__/jest_repl.test.js b/packages/jest-repl/src/__tests__/jest_repl.test.js
index b94a29b606c0..ebf51b028caf 100644
--- a/packages/jest-repl/src/__tests__/jest_repl.test.js
+++ b/packages/jest-repl/src/__tests__/jest_repl.test.js
@@ -5,7 +5,6 @@
  * LICENSE file in the root directory of this source tree.
  *
  */
-'use strict';
 
 import {spawnSync} from 'child_process';
 import path from 'path';
@@ -29,6 +28,7 @@ describe('Repl', () => {
         encoding: 'utf8',
         env: process.env,
       });
+      expect(output.stderr.trim()).toBe('');
       expect(output.stdout.trim()).toMatch(/›/);
     });
   });
diff --git a/packages/jest-repl/src/cli/repl.ts b/packages/jest-repl/src/cli/repl.ts
index 6dde9dad8c18..313b4988b36a 100644
--- a/packages/jest-repl/src/cli/repl.ts
+++ b/packages/jest-repl/src/cli/repl.ts
@@ -13,6 +13,7 @@ import * as repl from 'repl';
 import {runInThisContext} from 'vm';
 import type {SyncTransformer} from '@jest/transform';
 import type {Config} from '@jest/types';
+import {interopRequireDefault} from 'jest-util';
 
 // TODO: support async as well
 let transformer: SyncTransformer;
@@ -77,7 +78,7 @@ if (jestProjectConfig.transform) {
     }
   }
   if (transformerPath) {
-    transformer = require(transformerPath);
+    transformer = interopRequireDefault(require(transformerPath)).default;
     if (typeof transformer.process !== 'function') {
       throw new TypeError(
         'Jest: a transformer must export a `process` function.',