def test_backstage_passes_quality_dropdown_and_increment(self):
'''Test for backstage_passes_quality_dropdown() and
backstage_passes_increment_quality().'''
item = Item("Backstage passes to a TAFKAL80ETC concert", 2, 20)
item.backstage_passes_quality_dropdown()
item.backstage_passes_increment_quality()
self.assertEqual(item.quality, 23)
