Goal g3 = createGoal(gss, 3);
PrioritizedElement sg3 = createSelectedGoal(gssQuery, g3, 10);
new UpdatePrioritizedElementPriorityCommand(gssQuery.getSelectedGoalsSet(), sg1, "60" ).runWithoutUnicaseCommand();
assertEquals(3, gssQuery.getSelectedGoalsSet().getPrioritizedElements().size());
assertEquals(0, gssQuery.getSelectedGoalsSet().getPriorizedDecompositionRelations().size());
assertEquals("60", sg1.getGlobalPriority());