I'm using a testing setup with Mocha.js and a lot of promises within the tests. The tests depend on setting up stuff in the DOM, and between tests, the DOM is cleared. However, sometimes the tests run slowly and time out. In this case, their promises continue to execute but the DOM is cleared before the next test, so the promise may incorrectly throw errors into the next test. Is there a way to cancel or destroy all outstanding promises in-between tests? We are using when.js promises.
'Zombie promises' continuing after a mocha.js test timeout
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when.jssupports acancel()method. You could call it from aafterEachorafterblock in mocha. You might need to create an array at the top of each mocha file (or as global) to track your outstanding promises.