CODEWITHSUNDEEP
reactjsunit-testingtestingenzymenext.js
iamhuynq
iamhuynq

Reputation: 5539

How do I test next/link (Nextjs) getting page redirect after onClick in React?

I want to test the page get redirected after click on div, but I dont know how, this is my code. Thank you so much

<div className="bellTest">
   <NextLink href="/notifications">
       <Bell />
   </NextLink>
 </div>

test.tsx

jest.mock('next/link', () => {
     return ({ children }) => {
            return children;
     };
});

describe('Test of <HeaderContainer>', () => {
    test('Test the page redirect after click', async done => {
        const wrapper = mount( <HeaderComponent /> );
        await wrapper
            .find('.bellTest')
            .at(0)
            .simulate('click');
        // expect the page getting redirect
    });
});

Upvotes: 7

Views: 12271

Answers (1)

felixmosh
felixmosh

Reputation: 35553

Instead of mocking next/link you can register a spy on router events, and check if it was called.

The test will look like this:

import Router from 'next/router';

describe('Test of <HeaderContainer>', () => {
  const spies: any = {};

  beforeEach(() => {
    spies.routerChangeStart = jest.fn();
    Router.events.on('routeChangeStart', spies.routerChangeStart);
  });

  afterEach(() => {
    Router.events.off('routeChangeStart', spies.routerChangeStart);
  });

  test('Test the page redirect after click', async done => {
    const wrapper = mount(<HeaderComponent />);
    await wrapper
      .find('.bellTest')
      .at(0)
      .simulate('click');

    expect(spies.routerChangeStart).toHaveBeenCalledWith('expect-url-here');
  });
});

Upvotes: 3

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