@Test
 public void should_try_to_find_drop_down_list_until_it_is_found() {
   showDropDownListWithDelay();
   JList list = finder.findDropDownList();
   assertThat(list).isNotNull();
   assertThatListContains(list, "first", "second", "third");
 }
 @Test
 public void should_find_drop_down_list() {
   showJComboBoxDropDownList();
   JList list = finder.findDropDownList();
   assertThat(list).isNotNull();
   assertThatListContains(list, "first", "second", "third");
 }
 @Test
 public void should_return_null_if_active_drop_down_does_not_belong_to_JComboBox() {
   robot.rightClick(window.textField);
   JList list = finder.findDropDownList();
   assertThat(list).isNull();
 }
 @Test
 public void should_return_null_if_drop_down_was_not_found() {
   JList list = finder.findDropDownList();
   assertThat(list).isNull();
 }