It is entirely possible that the difference between the specified
sleep time and the actual sleep time is greater than 15 seconds.
https://developer.mozilla.org/en-US/docs/Web/API/setTimeout#Notes
> Note that in either case, the actual delay may be longer than
> intended; see Reasons for delays longer than specified below.
It is however an error for the delay to be shorter.
⎯⎯⎯⎯⎯⎯⎯ Failed Tests 1 ⎯⎯⎯⎯⎯⎯⎯
FAIL web_src/js/utils.test.js > sleep
AssertionError: expected false to be truthy
❯ testSleep web_src/js/utils.test.js:192:48
190| const endTime = Date.now(); // Record the end time
191| const actualSleepTime = endTime - startTime;
192| expect(Math.abs(actualSleepTime - ms) <= 15).toBeTruthy();
| ^
193| }
194|
❯ web_src/js/utils.test.js:184:3
a0d9d8d576