Scheduling: Unit tests for Scheduling refactoring

Added new unit tests for the Scheduling package refactored API. They match
version RC4 of the "Scheduling Package Refactoring API" publication
(Technical Journal url: http://hdl.handle.net/10909/47)

Fixed unit tests failures when time is multiple of 10 minutes.

Change-Id: I167f0020b2e87adca647408a1d577e533c58ba04
Merge "Scheduling: Unit tests for Scheduling refactoring"