Getbydisplayvalue React: Testing Library

import render, screen from '@testing-library/react'; import userEvent from '@testing-library/user-event'; import UserForm from './UserForm';

fireEvent.change(input, target: value: 'Hello World' );

| Pitfall | Solution | |---------|----------| | | Use getAllByDisplayValue + index, or refine with within or additional attributes. | | Select element fails to match | Match the display text of the <option> , not its value attribute. | | Whitespace differences | Use normalizer or trim: true option. | | Case mismatch | Use RegExp with i flag: /value/i . | getbydisplayvalue react testing library

import React from 'react'; import render, getByDisplayValue, fireEvent from '@testing-library/react'; import MyForm from './MyForm';

getByDisplayValue is a query method in React Testing Library that searches for an element that matches the given displayValue . This is especially handy when testing form inputs, selects, and textareas. | | Case mismatch | Use RegExp with i flag: /value/i

Sometimes, you might have a more complex component tree and you need to find an element within a specific context or nested deeper within your component hierarchy. For such cases, you can use the within function provided by @testing-library/react to scope your query.

fireEvent.change(input, target: value: 'John Doe' ); fireEvent.click(submitButton); Sometimes, you might have a more complex component

// Component renders with default value "John Doe" expect(screen.getByDisplayValue('John Doe')).toBeInTheDocument();

: Checking which option is currently selected in a element. Basic Usage and Syntax