Jest waitfor timeout However, I'm testing using Jest, waitFor doesn't work as expected. I could understand if waitFor and timer mocks were fundamentally incompatible, but I wanted to seek out if that is the case. The documentation states that waitFor fails on timeout: The default timeout is 1000ms which will keep you under Jest's default timeout of 5000ms. In some cases, when your code uses timers (setTimeout, setInterval, clearTimeout, clearInterval), your tests may become unpredictable, slow and flaky. I think its better to use waitFor than findBy which is in my opinion is more self explanatory that it is async/needs to be waited waitFor than findBy. The call to jest. For example this code will wait for 2 real seconds (if want to mock time check jest docs): Jest will wait until the done callback is called before finishing the test. 0; react version: 17. If you are calling a real endpoint without mocking (mocking is recommended, for example using msw), this might take more than 1 second to execute. この記事は コネヒト Advent Calendar 2021 19日目の記事です。. tsinxhbzjutorztumtgyhgjefwozjefdmmceejuppbgbjaiquujkqcpiuetzxsrprbqewflkcj