How do I handle async errors in my tests?

How do I handle async errors in my tests?

You can handle async errors in tests by using try-catch blocks or by returning a rejected promise.

Can you give me an example of using try-catch in a test?

Sure! Here's a simple example:

it('should handle async error', async () => {
  try {
    await asyncFunction();
  } catch (error) {
    expect(error).toBeDefined();
  }
});

What about using promises instead?

You can return a promise in your test like this:

it('should handle async error', () => {
  return asyncFunction().catch(error => {
    expect(error).toBeDefined();
  });
});

Are there any libraries that can help with this?

Yes, libraries like Jest and Mocha provide built-in support for handling async tests and errors.