KentBeck/junit — pull request #569 by Tibor17 (2012-12-09 00:51:08+00:00)
Title: Measure runtime in Stopwatch rule for Performace tests

Follows #552. We would be able assert runtime in performance tests:

`
long delta= 30;
Thread.sleep(300L);
assertEquals(fStopwatch.runtime(MILLISECONDS), 300d, delta);
Thread.sleep(500L);
assertEquals(fStopwatch.runtime(MILLISECONDS), 800d, delta);
`