Mock `window.location.search`

search.tests.js

it('mocks search', () => {
   delete window.location;
   window.location = { search: '?query=phone' };

  expect(window.location.search).toEqual('?query=phone');

});

👍

Absolute lifesaver

Thanks.
Not that easy to make it work with typescript 😅

Not working with React Testing Library

        window.location.search = '?slug=test&token=resetToken'
        const { findByText } = render(<Component />)

Then in my <Component, I console.log(window.location.search) and it shows up undefined

  console.log
    search query:

Mock window.location.search in a TypeScript React project using React Testing Library and Jest, you can follow these steps:

1. Install the necessary packages if you haven't already:

   npm install @testing-library/react @testing-library/jest-dom jest @types/jest --save-dev

2. Create a setup file for Jest to configure the global window.location.search mock. In the root of your project, create a jest.setup.js file (or jest.setup.ts if you are using TypeScript).

3. In the jest.setup.js (or jest.setup.ts) file, define the mock for window.location.search:

   // jest.setup.js (or jest.setup.ts)
   Object.defineProperty(window, 'location', {
     writable: true,
     value: { search: '' },
   });

   This code snippet sets up a mock for window.location with an initial value for the search property as an empty string. This allows you to override this value during your tests.

4. Update your Jest configuration in the package.json (or jest.config.js for a separate configuration file) to include the setup file:

   // package.json
   {
     "jest": {
       "setupFilesAfterEnv": ["<rootDir>/jest.setup.js"]
     }
   }

   This tells Jest to execute the setup file before running the tests.

5. Now, in your test files, you can use React Testing Library and Jest as usual. To mock the window.location.search for a specific test, you can set the desired value before rendering your component:

   // YourComponent.test.tsx (or .test.ts, .spec.ts, etc.)
   import React from 'react';
   import { render } from '@testing-library/react';
   import YourComponent from './YourComponent';
   
   describe('YourComponent', () => {
     it('should render with a custom search query', () => {
       // Set the desired value for window.location.search
       Object.defineProperty(window, 'location', {
         writable: true,
         value: { search: '?query=test' },
       });
   
       // Now, render your component
       const { getByText } = render(<YourComponent />);
   
       // Add your assertions
       const element = getByText('Your Component Content');
       expect(element).toBeInTheDocument();
     });
   });

   In this example, the window.location.search is mocked with a custom query string (?query=test) before rendering the YourComponent.

By following these steps, you should be able to mock window.location.search in your TypeScript React project using React Testing Library and Jest. Remember to customize the value of window.location.search according to your test scenarios.

Mock window.location.search in a TypeScript React project using React Testing Library and Jest, you can follow these steps:

1. Install the necessary packages if you haven't already:

   npm install @testing-library/react @testing-library/jest-dom jest @types/jest --save-dev

2. Create a setup file for Jest to configure the global window.location.search mock. In the root of your project, create a jest.setup.js file (or jest.setup.ts if you are using TypeScript).

3. In the jest.setup.js (or jest.setup.ts) file, define the mock for window.location.search:

   // jest.setup.js (or jest.setup.ts)
   Object.defineProperty(window, 'location', {
     writable: true,
     value: { search: '' },
   });

   This code snippet sets up a mock for window.location with an initial value for the search property as an empty string. This allows you to override this value during your tests.

4. Update your Jest configuration in the package.json (or jest.config.js for a separate configuration file) to include the setup file:

   // package.json
   {
     "jest": {
       "setupFilesAfterEnv": ["<rootDir>/jest.setup.js"]
     }
   }

   This tells Jest to execute the setup file before running the tests.

5. Now, in your test files, you can use React Testing Library and Jest as usual. To mock the window.location.search for a specific test, you can set the desired value before rendering your component:

   // YourComponent.test.tsx (or .test.ts, .spec.ts, etc.)
   import React from 'react';
   import { render } from '@testing-library/react';
   import YourComponent from './YourComponent';
   
   describe('YourComponent', () => {
     it('should render with a custom search query', () => {
       // Set the desired value for window.location.search
       Object.defineProperty(window, 'location', {
         writable: true,
         value: { search: '?query=test' },
       });
   
       // Now, render your component
       const { getByText } = render(<YourComponent />);
   
       // Add your assertions
       const element = getByText('Your Component Content');
       expect(element).toBeInTheDocument();
     });
   });

   In this example, the window.location.search is mocked with a custom query string (?query=test) before rendering the YourComponent.

By following these steps, you should be able to mock window.location.search in your TypeScript React project using React Testing Library and Jest. Remember to customize the value of window.location.search according to your test scenarios.

thanks chatGPT? 😂🤣

Thanks. Not that easy to make it work with typescript 😅

Mock window.location.search in TypeScript:

global.window = Object.create(window);
Object.defineProperty(window, 'location', {
  value: {
    search: '?query=phone',
  },
});