API Reference React Hooks Testing Library
React hooks testing library exports the following methods renderHook act cleanup addCleanup removeCleanup suppressErrorOutput renderHook function renderHook callback props any gt any options RenderHookOptions RenderHookResult
GitHub Testing library react hooks testing library Simple , The react hooks testing library allows you to create a simple test harness for React hooks that handles running them within the body of a function component as well as providing various useful utility functions for updating the inputs and retrieving the outputs of your amazing custom hook
API Testing Library
import renderHook from testing library react test returns logged in user gt const result rerender renderHook props gt props initialProps name Alice expect result current toEqual name Alice rerender expect result current toEqual name undefined
How To Test React Hooks LogRocket Blog, This article provides a practical guide to testing React Hooks using tools such as React Testing Library Jest and Enzyme What are React Hooks React Hooks essentially provide a way to create components with features like state without the need for class components
Complete Guide To React Hooks Testing Toptal 174
Complete Guide To React Hooks Testing Toptal 174 , Here is how we render a hook in React hooks testing library Notice the hook is passed in the form of a callback This callback is run every time the test component re renders const result wait rerender renderHook url gt useStaleRefresh url defaultValue initialProps url quot url1 quot
React Testing Tutorial With React Testing Library And Jest YouTube
Reactjs React Hook Testing With RenderHook Stack Overflow
Reactjs React Hook Testing With RenderHook Stack Overflow If you want to test a component that uses useState or any hook you need to render the component itself and assert the result of that hook in the rendered component E g it test count update gt const wrapper mount lt ComponentToTest gt act gt wrapper find button simulate click assuming the result is rendered in a
How To Use React Testing Library
This library aims to provide a testing experience as close as possible to natively using your hook from within a real component Using this library you do not have to concern yourself with how to construct render or interact with the testing library react hooks Npm. React Testing Library is a testing utility tool that s built to test the actual DOM tree rendered by React on the browser The goal of the library is to help you write tests that resemble how a user would use your application This can give you more confidence that your application works as intended when a real user does use it We can use the wrapper option for renderHook to do just that Let s change the useCounter example from the Basic Hooks section to get a step value from context and build a CounterStepProvider that allows us to set the value import React useState useContext useCallback from react
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