source: class PlanServiceTest {
  
  	@Mock
  	private PlanRepository planRepository;
  	private Plan plan;
  	private Plan plan2;
  	private PlanService planService;
  	private List<Plan> plans;
  
  	@Test
  	public void testInvalidAddPlan() {
  
target: 			assertEquals(null, planService.addPlan(plan2));
  	}
  
  }