Robert Ransom authored Jul 15, 2014 and Isis Lovecruft committed Jul 16, 2014

Previously, the test suite checked only that Unscheduled.getInterval would
return a particular value when invoked with no argument.  Now, the test
suite checks the only property of Unscheduled.getInterval that its callers
rely on: that it returns the same string regardless of which time is passed
in to it.