How can I improve the performance of async tests in Jest?
An example of an AI chatbot conversation about optimizing async tests in Jest.
How can I improve the performance of async tests in Jest?
To improve async test performance in Jest, consider using jest.runAllTimers() to speed up timer-based tests.
What about using async/await? Does it affect performance?
Using async/await can make your tests more readable, but ensure you're not awaiting unnecessary promises to avoid slowdowns.
Are there any specific configurations I should change in Jest?
Yes, you can adjust the testTimeout setting and use --runInBand to run tests serially, which can help with resource-heavy tests.
Can I mock timers to improve performance?
Absolutely! Mocking timers with jest.useFakeTimers() allows you to control the passage of time and speed up your tests.
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