How do I test async functions in Node.js?

How do I test async functions in Node.js?

You can use testing frameworks like Mocha or Jest. They provide utilities to handle async code.

Can you show me an example using Jest?

Sure! You can use async and await in your test cases. Here's a simple example:

test('async function test', async () => {
  const data = await asyncFunction();
  expect(data).toBe('expected value');
});

What if I want to test multiple async functions?

You can chain your async calls or use Promise.all to handle multiple async functions in your tests.

Are there any best practices for testing async functions?

Yes, always handle errors properly, use timeouts if necessary, and ensure your tests are isolated.