How can I use Jest for advanced mocking in Vue 3?

How can I use Jest for advanced mocking in Vue 3?

You can use Jest's mocking capabilities to create mock functions, modules, and even components in Vue 3. Would you like a specific example?

Yes, please provide an example of mocking a Vue component.

Sure! You can use jest.mock() to mock a component. For instance, if you have a component called MyComponent, you can do:

jest.mock('./MyComponent.vue', () => ({
  template: '<div></div>',
  methods: { myMethod: jest.fn() }
}));

This way, you can control its behavior in your tests.

What about mocking Vuex store actions?

To mock Vuex store actions, you can create a mock store using jest.fn() for the actions you want to test. For example:

const actions = {
  fetchData: jest.fn()
};
const store = new Vuex.Store({ actions });

This allows you to test components that rely on Vuex actions without executing the actual logic.

Can I also mock API calls in my tests?

Absolutely! You can use libraries like axios-mock-adapter to mock API calls. This way, you can simulate different responses without hitting the actual API.