python refactoring

python/tests/test_gilded_rose.py

@@ -5,11 +5,88 @@ from gilded_rose import Item, GildedRose
 
 
 class GildedRoseTest(unittest.TestCase):
-    def test_foo(self):
-        items = [Item("foo", 0, 0)]
-        gilded_rose = GildedRose(items)
-        gilded_rose.update_quality()
-        self.assertEqual("fixme", items[0].name)
+    def test_normal_item_before_sell_in(self):
+        items = [Item("Normal", 5, 10)]
+        gilded = GildedRose(items)
+        gilded.update_quality()
+        self.assertEqual(items[0].quality, 9)
+        self.assertEqual(items[0].sell_in, 4)
+
+    def test_normal_item_after_sell_in(self):
+        items = [Item("Normal", 0, 10)]
+        gilded = GildedRose(items)
+        gilded.update_quality()
+        self.assertEqual(items[0].quality, 8)
+        self.assertEqual(items[0].sell_in, -1)
+
+    def test_aged_brie_increases_quality(self):
+        items = [Item("Aged Brie", 2, 0)]
+        gilded = GildedRose(items)
+        gilded.update_quality()
+        self.assertEqual(items[0].quality, 1)
+        self.assertEqual(items[0].sell_in, 1)
+
+    def test_aged_brie_never_exceeds_50(self):
+        items = [Item("Aged Brie", 2, 50)]
+        gilded = GildedRose(items)
+        gilded.update_quality()
+        self.assertEqual(items[0].quality, 50)
+        self.assertEqual(items[0].sell_in, 1)
+
+    def test_backstage_passes_increases_by_1_when_sell_in_more_than_10(self):
+        items = [Item("Backstage passes to a TAFKAL80ETC concert", 15, 20)]
+        gilded = GildedRose(items)
+        gilded.update_quality()
+        self.assertEqual(items[0].quality, 21)
+        self.assertEqual(items[0].sell_in, 14)
+
+    def test_backstage_passes_increases_by_2_when_sell_in_10_or_less(self):
+        items = [Item("Backstage passes to a TAFKAL80ETC concert", 10, 20)]
+        gilded = GildedRose(items)
+        gilded.update_quality()
+        self.assertEqual(items[0].quality, 22)
+        self.assertEqual(items[0].sell_in, 9)
+
+    def test_backstage_passes_increases_by_3_when_sell_in_5_or_less(self):
+        items = [Item("Backstage passes to a TAFKAL80ETC concert", 5, 20)]
+        gilded = GildedRose(items)
+        gilded.update_quality()
+        self.assertEqual(items[0].quality, 23)
+        self.assertEqual(items[0].sell_in, 4)
+
+    def test_backstage_passes_quality_drops_to_zero_after_concert(self):
+        items = [Item("Backstage passes to a TAFKAL80ETC concert", 0, 20)]
+        gilded = GildedRose(items)
+        gilded.update_quality()
+        self.assertEqual(items[0].quality, 0)
+        self.assertEqual(items[0].sell_in, -1)
+
+    def test_sulfuras_never_changes(self):
+        items = [Item("Sulfuras, Hand of Ragnaros", 0, 80)]
+        gilded = GildedRose(items)
+        gilded.update_quality()
+        self.assertEqual(items[0].quality, 80)
+        self.assertEqual(items[0].sell_in, 0)
+
+    def test_sulfuras_with_positive_sell_in_also_unchanged(self):
+        items = [Item("Sulfuras, Hand of Ragnaros", 5, 80)]
+        gilded = GildedRose(items)
+        gilded.update_quality()
+        self.assertEqual(items[0].quality, 80)
+        self.assertEqual(items[0].sell_in, 5)
+
+    def test_quality_never_negative(self):
+        items = [Item("Normal", 0, 0)]
+        gilded = GildedRose(items)
+        gilded.update_quality()
+        self.assertEqual(items[0].quality, 0)
+
+    def test_conjured_items_are_not_supported_yet_but_work_as_normal(self):
+        items = [Item("Conjured Mana Cake", 3, 6)]
+        gilded = GildedRose(items)
+        gilded.update_quality()
+        self.assertEqual(items[0].quality, 5)
+        self.assertEqual(items[0].sell_in, 2)
 
         
 if __name__ == '__main__':