react-testing-library VS formik

React Testing Library

After searching for a workaround, I found this issue thread on the React-testing-library Github page, which gave me a clear solution.

yeeeesss and as an advice use testID in most of matcher cases. also do not rely only on detox matcher try https://github.com/testing-library/react-testing-library

React Testing Library: This library provides simple and complete React DOM testing utilities that encourage good testing practices. It helps you write tests that are more focused on the behavior of your components rather than the implementation details. https://github.com/testing-library/react-testing-library

I've had a number of issues since the upgrate to React 18, notably this one.

For more information see: - The PR implementing 'renderHook' in React Testing Library

Really? It seems like it's already been replaced. Can you link to where it's not quite deprecated yet? https://github.com/testing-library/react-testing-library/releases/tag/v13.1.0

expect(wrapper.find('FetchNextPageButton').props()).toMatchObject({ query: NEWS\_QUERY, path: "viewer.news"}) So I'm wondering what's the best approach to test it by using React testing library instead.

^ jest for running the tests & @types/jest to help with IDE auto-complete when writing tests. @testing-library/react to render components in the testing environment & test them in a way that tries to mimic how users interact with them. @testing-library/jest-dom for additional DOM-related assertions.

There are many ways to test component UIs and some testing frameworks help us achieve that, to mention but a few react-testing-library, where we write tests to check what a component has, for example, if we are testing a form component, we will write tests to check it a button is rendered, if there are input and/or select tags, etc and we usually see the results in our terminals but with React cosmos, we have a visual way to test our components (Visual TDD) which makes testing easier.

GitHub Repository: https://github.com/formium/formik) Installation:

Additionally, there are more npm packages such as Formik and zod that come equipped with a range of features that can enhance the form validation process.

7. Formik and Yup

Forms are often tricky to get right with React. While there are great libraries like formik or React Final Form to do the heavy lefting for us, handling file upload still isn't always straightforward.

Formik is a well known React library that allows to create forms, manage, and validate their state. It comes with built-in support for Yup, a schema builder for value parsing and validation.

Formik is a small group of React components and hooks for building forms in React and React Native. Formik helps with the three most annoying parts: Getting values in and out of form state. Validation and error messages. Handling form submission. npm i formik

Formik

In the first part of this tutorial, we took a look at how to build React forms with custom HTML elements and form state and logic provided by Formik. In the second part, we switched to Formik components and build form with them. In this final part we will make another change, a small step back.