How can I improve my async tests in JavaScript?

How can I improve my async tests in JavaScript?

You can improve your async tests by using tools like Jest or Mocha, which provide better handling for promises.

What are some common pitfalls in async testing?

Common pitfalls include not waiting for promises to resolve, using incorrect assertions, and not cleaning up after tests.

Can you give me an example of a good async test?

Sure! Here's a simple example using Jest:

test('fetches data', async () => {
  const data = await fetchData();
  expect(data).toEqual(expectedData);
});

How do I mock async functions in my tests?

You can use libraries like Jest to mock async functions. For example:

jest.mock('./api');
api.fetchData.mockResolvedValue(expectedData);