Changes
→Testing
===Testing===
* Have the timer interrupt print a debug statement, and have timed threads print the times they go to sleep and when they have woken up. Verify that they wake up relatively close to their expected exit time.
* Make sure threads called with illegal times return immediately. Test threads that go to sleep chronologically in order (1, 500, 1050) as well as threads that go to sleep with the same times ( 50, 50) and threads that go to sleep in reverse order (500, 250). Verify they all wake up when they are supposed to.
===Pseudocode===
