How do I test Vue components effectively?

How do I test Vue components effectively?

To test Vue components effectively, you can use tools like Vue Test Utils and Jest. They allow you to create unit tests for your components.

Can you give me an example of a unit test for a Vue component?

Sure! Here's a simple example:

import { shallowMount } from '@vue/test-utils';
import MyComponent from '@/components/MyComponent.vue';

describe('MyComponent.vue', () => {
  it('renders props.msg when passed', () => {
    const msg = 'new message';
    const wrapper = shallowMount(MyComponent, {
      props: { msg }
    });
    expect(wrapper.text()).toMatch(msg);
  });
});

What are some best practices for testing Vue components?

Some best practices include:

1. Test the component's public API.
2. Use shallow rendering to isolate components.
3. Write tests for both props and emitted events.

How can I test Vuex store actions in my components?

You can mock the Vuex store in your tests and dispatch actions to test how your component reacts to state changes.