Learn React Hooks

Testing the useUserState Hook

Using the StateContextWrapper and the Dispatch Hook, we can now test the useUserState Hook by dispatching LOGIN and REGISTER actions and checking the result. To dispatch these actions, we use the act function from the testing library.

Let's test the useUserState Hook:

1. Create a new src/hooks/useUserState.test.js file.
2. Import the necessary functions, the useDispatch and useUserState Hooks, and the StateContextWrapper:

import { renderHook, act } from '@testing-library/react-hooks'import { StateContextWrapper } from './testUtils'import useDispatch from './useDispatch'import useUserState from './useUserState'

3. Next, we write a test that checks the initial user state:

test('should use user state', () => { const ...