How do I write unit tests for Vue 3 components?

How do I write unit tests for Vue 3 components?

To write unit tests for Vue 3 components, you can use tools like Jest and Vue Test Utils. Would you like a step-by-step guide?

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

1. Install Jest and Vue Test Utils. 2. Create a test file for your component. 3. Import the component and set up the test environment. 4. Write tests using describe and it blocks. 5. Run your tests using the Jest command.

Can you show me an example of a test case?

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

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

describe('MyButton.vue', () => {
  it('renders props.label when passed', () => {
    const label = 'Click me!';
    const wrapper = mount(MyButton, {
      props: { label },
    });
    expect(wrapper.text()).toMatch(label);
  });
});