How do I use async mock functions in Jest?
An example of an AI chatbot conversation about using async mock functions in Jest testing.
How do I use async mock functions in Jest?
You can use jest.fn() to create a mock function and return a promise for async operations. Would you like an example?
Yes, please provide an example of an async mock function.
Sure! Here's a simple example:
const fetchData = jest.fn().mockResolvedValue('data');
fetchData().then(data => console.log(data)); // logs 'data'
What if I want to simulate a rejected promise?
You can use mockRejectedValue to simulate a rejected promise. For example:
const fetchData = jest.fn().mockRejectedValue(new Error('Error!'));
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