next js testing issue with next router

Asked Jun 05 '22 at 13:27

Active Jun 05 '22 at 13:28

Viewed 1,042 times

I am trying to writing unit test with react-testing-library for my project in nextjs but I have trouble with next router specially localization

const t = locale === 'fa' ? fa : en;

I face to this error while I run the test Cannot destructure property 'locale' of 'router' as it is null. any body have idea about this problem ?

edited Jun 05 '22 at 13:28

Ahmed Ashour

asked Jun 05 '22 at 13:27

Hasan Rabiee

have you configured your project for test? [read this](https://nextjs.org/docs/testing) – Moein Moeinnia Jun 05 '22 at 13:36
@Moeinmoeinnia yes I did . some of my test passed – Hasan Rabiee Jun 05 '22 at 13:52
Try mocking `next/router` in your tests. See [Mocking NextJS router events with Jest](https://stackoverflow.com/questions/69125633/mocking-nextjs-router-events-with-jest). – juliomalves Jun 05 '22 at 17:12

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