scheduled operation api includes 'create', 'list', 'get' and 'delete'
operations, it also includes another process 'scheduled' need to test,
here, only add use cases for 'create', 'list', 'get' and 'delete', another
patch for 'scheduled'.
Change-Id: I493c466e6d2a5f5ba25d503f4e90b3ed4756ad62