@Test
  public void shouldSetHigherView() {
    storage.setView(5);
    assertEquals(5, storage.getView());

    storage.setView(9);
    assertEquals(9, storage.getView());
  }
 @Test
 public void shouldNotSetEqualView() {
   storage.setView(5);
   assertEquals(5, storage.getView());
   try {
     storage.setView(5);
   } catch (IllegalArgumentException e) {
     return;
   }
   fail();
 }
 @Test
 public void initialViewNumberShouldEqualZero() {
   assertEquals(0, storage.getView());
 }