Course course = new Course("CS110");
course.setId(new Long(1L));
gradedEvent.setCourse(course);
Question question = new Question();
question.setId(new Long(1L));
question.setName("Sequencer");
instance.removeQuestionFromGradedEvent(gradedEvent, question);
gradedEvent = instance.find(new Long(5L));
assertEquals(1, gradedEvent.getQuestions().size());
EntityManager em = testDb.getConnection();
Question testQuestion = em.find(Question.class, new Long(1L));
assertNotNull(testQuestion);
assertTrue(instance.isOpen());
}