What are async assertions in Jest?

Can you explain what async assertions are in Jest?

Async assertions in Jest allow you to test asynchronous code, ensuring that promises resolve as expected.

How do I use async/await with Jest assertions?

You can use async/await by marking your test function as async and using await with your assertions.

Can you give me an example of an async assertion in Jest?

Sure! Here's a simple example: test('fetches data', async () => { const data = await fetchData(); expect(data).toBeDefined(); });

What happens if the promise is rejected?

If the promise is rejected, Jest will automatically fail the test, and you can handle it using try/catch.