def test_aged_brie_quality_increases_by_two_after_sell_date(self):
items = [Item("Aged Brie", -1, 47)]
update_quality(items)
self.assertEqual(49, items[0].quality)
def test_after_sell_date_quality_decreases_by_2(self):
items = [Item('something', -1, 35)]
update_quality(items)
self.assertEqual((-2, 33), (items[0].sell_in, items[0].quality))
def test_conjured_before_sell_date(self):
items = [Item('Conjured', 10, 20)]
update_quality(items)
self.assertEqual(18, items[0].quality)
def test_sulfuras_never_changes(self):
items = [Item('Sulfuras', 10, 40)]
update_quality(items)
self.assertEqual((10, 40), (items[0].sell_in, items[0].quality))
def test_backstage_pass_less_than_5_days_before_concert(self):
items = [Item('Backstage passes', 5, 45)]
update_quality(items)
self.assertEqual(48, items[0].quality)
def test_backstage_pass_10_days_before_concert(self):
items = [Item('Backstage passes', 10, 45)]
update_quality(items)
self.assertEqual(47, items[0].quality)
def test_backstage_pass_after_concert(self):
items = [Item('Backstage passes', -1, 49)]
update_quality(items)
self.assertEqual(0, items[0].quality)
def test_aged_brie_before_sell_date_increase_by_one(self):
item = [Item("Aged Brie", 10, 40)]
update_quality(item)
self.assertEqual(41, item[0].quality)
