Update 10-testing.mdx (#54107)

Fixed `next/jest.js` import in documentation. without `.js` it show this error
```
Error [ERR_MODULE_NOT_FOUND]: Cannot find module 'F:\React\my-project\node_modules\next\jest' imported from F:\React\my-project\jest.config.mjs
Did you mean to import next/jest.js?
    at new NodeError (node:internal/errors:399:5)
    at finalizeResolution (node:internal/modules/esm/resolve:326:11)
    at moduleResolve (node:internal/modules/esm/resolve:945:10)
    at defaultResolve (node:internal/modules/esm/resolve:1153:11)
    at nextResolve (node:internal/modules/esm/loader:163:28)
    at ESMLoader.resolve (node:internal/modules/esm/loader:838:30)
    at ESMLoader.getModuleJob (node:internal/modules/esm/loader:424:18)
    at ModuleWrap.<anonymous> (node:internal/modules/esm/module_job:77:40)
    at link (node:internal/modules/esm/module_job:76:36)
 ```
This commit is contained in:
Uzair Ali 2023-08-24 17:02:00 +05:00 committed by GitHub
parent 08b117ac5c
commit 32f11c34e8
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@ -318,7 +318,7 @@ npm install --save-dev jest jest-environment-jsdom @testing-library/react @testi
Create a `jest.config.mjs` file in your project's root directory and add the following:
```js filename="jest.config.mjs"
import nextJest from 'next/jest'
import nextJest from 'next/jest.js'
const createJestConfig = nextJest({
// Provide the path to your Next.js app to load next.config.js and .env files in your test environment