assertEquals(2, course.getInstructors().size());
Instructor newIns = new Instructor("John", "Smith", "John.Smith");
newIns.setId(new Long(42L));
newIns.setDomainAccount(newIns.getWebID());
course.addInstructor(newIns);
assertTrue(instance.isOpen());
Course result = instance.update(course);
assertEquals(new Long(1L), result.getId());
assertEquals("CS110", result.getName());