@Test
 public void testModificarClassroomAddResource() {
   FixedResource resource = new FixedResource("PC", 5);
   department.createClassroom("Aula 2", 40);
   department.modifyClassroomAddResource("Aula 2", resource);
   assertEquals(resource, department.searchClassroom("Aula 2").getResource("PC"));
 }
 @Test(expected = ClassroomException.class)
 public void testSearchClassroomInexistente() {
   department.createClassroom("Aula 2", 40);
   department.searchClassroom("Aula 5");
 }
 @Test
 public void testSearchClassroom() {
   Classroom classroom = department.createClassroom("Aula 2", 40);
   Classroom foundClassroom = department.searchClassroom("Aula 2");
   assertSame(foundClassroom, classroom);
 }