better test condition than trying to compare against arbitrary value
better test condition than trying to compare against arbitrary value

The upper limit for threshold in previous condition was causing issues on mac
machines on github runners. It wasn't sustainable to keep increasing the threshold.
Using this test condition now which should make sure Sleep is working as expected.

firebase/firebase-cpp-sdk,firebase/firebase-cpp-sdk,firebase/firebase-cpp-sdk,firebase/firebase-cpp-sdk,firebase/firebase-cpp-sdk,firebase/firebase-cpp-sdk,firebase/firebase-cpp-sdk,firebase/firebase-cpp-sdk