What are the best practices for testing async code in Vue CLI with Jest?

What are the best practices for testing async code in Vue CLI with Jest?

When testing async code in Vue CLI with Jest, it's important to use async/await for better readability. Also, ensure you use the flushPromises utility to wait for all promises to resolve before making assertions.

Can you explain how to use flushPromises in my tests?

Sure! You can import flushPromises from the flush-promises package. After triggering your async action, call await flushPromises() before your assertions to ensure all promises have settled.

What about mocking API calls in my tests?

You can use Jest's jest.mock to mock API calls. This allows you to simulate different responses and test how your component behaves without making real network requests.

Are there any specific Jest matchers I should use for async tests?

Yes! Use matchers like toBeTruthy, toBeNull, or toEqual to assert the expected outcomes of your async operations. They work well with async tests.