How can I improve the performance of my Jest tests?
An example of an AI chatbot conversation about optimizing Jest test performance.
How can I improve the performance of my Jest tests?
To improve Jest test performance, consider using the --runInBand option to run tests serially, which can reduce overhead.
What about using jest --detectOpenHandles?
Using --detectOpenHandles helps identify asynchronous operations that are not properly closed, which can slow down tests.
Are there any specific configurations I should change?
Yes, you can adjust the testTimeout setting and use setupFilesAfterEnv to optimize your test environment.
How can I measure the performance of my tests?
You can use Jest's built-in performance metrics by running tests with the --logHeapUsage flag to monitor memory usage.
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