How do I test Vue.js components effectively?

How do I test Vue.js components effectively?

To test Vue.js components effectively, you can use tools like Vue Test Utils and Jest. Would you like a step-by-step guide?

Yes, please provide a step-by-step guide.

First, install Vue Test Utils and Jest. Then, create a test file for your component. Write tests to check props, emitted events, and rendered output.

Can you show me an example of a test case?

Sure! Here's a simple test case for a button component that emits a click event:

import { mount } from '@vue/test-utils';
import MyButton from './MyButton.vue';

test('emits click event when clicked', async () => {
  const wrapper = mount(MyButton);
  await wrapper.trigger('click');
  expect(wrapper.emitted().click).toBeTruthy();
});