Task SW-381: Mocking needs the path to the object not the source

Reminder for myself:
Mocking is odd and does not follow common sense.  When I want to mock out a
function joe that is imported into foo.bar like this:
from there.here.willy import joe
then I have to mock it like so:
@mock.patch("foo.bar.joe")

Common sense would tell to mock it like so:
@mock.patch("there.here.willy.joe")

SAS/ResourceAssignment/ResourceAssigner/test/t_schedulechecker.py

@@ -84,7 +84,7 @@ class ScheduleCheckerTest(unittest.TestCase):
 
         self.assert_all_services_closed()
 
-    @mock.patch('lofar.sas.resourceassignment.common.specification.movePipelineAfterItsPredecessors')
+    @mock.patch('lofar.sas.resourceassignment.resourceassigner.schedulechecker.movePipelineAfterItsPredecessors')
     def test_checkScheduledAndQueuedPipelines(self, movePipeline_mock):
         """ Test whether all scheduled/queued pipelines get a move request. """