What are the best practices for using Vue 3 Testing Library?

What are the best practices for using Vue 3 Testing Library?

Some best practices include using the screen object for queries, avoiding implementation details, and writing tests that resemble user interactions.

Can you give an example of a test case?

Sure! Here's a simple test case for a button click:

import { render, screen, fireEvent } from '@testing-library/vue';
import MyButton from './MyButton.vue';

test('button click changes text', async () => {
  render(MyButton);
  const button = screen.getByRole('button');
  await fireEvent.click(button);
  expect(screen.getByText('Clicked!')).toBeInTheDocument();
});

What should I avoid when writing tests?

Avoid testing implementation details, using wait unnecessarily, and making tests dependent on each other. Focus on user behavior.

How do I set up Vue 3 Testing Library in my project?

You can set it up by installing the library via npm:

npm install --save-dev @testing-library/vue

Then, configure your test environment to use it.