GildedRose-Refactoring-Kata/python/test_gilded_rose.py

66 lines
2.7 KiB
Python

# -*- coding: utf-8 -*-
import unittest
from gilded_rose import Item, GildedRose
class GildedRoseTest(unittest.TestCase):
def test_regular_item(self):
items = [Item("+5 Dexterity Vest", sell_in=10, quality=20)]
GildedRose(items).update_quality()
self.assertEqual(items[0].sell_in, 9)
self.assertEqual(items[0].quality, 19)
def test_aged_brie_increases_in_quality(self):
items = [Item("Aged Brie", sell_in=2, quality=0)]
GildedRose(items).update_quality()
self.assertEqual(items[0].sell_in, 1)
self.assertEqual(items[0].quality, 1)
def test_sulfuras_does_not_decrease(self):
items = [Item("Sulfuras, Hand of Ragnaros", sell_in=0, quality=80)]
GildedRose(items).update_quality()
self.assertEqual(items[0].sell_in, 0)
self.assertEqual(items[0].quality, 80)
def test_backstage_passes_increase_in_quality(self):
items = [Item("Backstage passes to a TAFKAL80ETC concert", sell_in=10, quality=20)]
GildedRose(items).update_quality()
self.assertEqual(items[0].sell_in, 9)
self.assertEqual(items[0].quality, 22) # Increases by 2 when sell_in <= 10
def test_backstage_passes_drop_to_zero_after_concert(self):
items = [Item("Backstage passes to a TAFKAL80ETC concert", sell_in=0, quality=30)]
GildedRose(items).update_quality()
self.assertEqual(items[0].sell_in, -1)
self.assertEqual(items[0].quality, 0)
def test_quality_never_exceeds_50(self):
items = [Item("Aged Brie", sell_in=5, quality=50)]
GildedRose(items).update_quality()
self.assertEqual(items[0].quality, 50)
def test_quality_never_goes_below_zero(self):
items = [Item("+5 Dexterity Vest", sell_in=5, quality=0)]
GildedRose(items).update_quality()
self.assertEqual(items[0].quality, 0)
def test_expired_item_degrades_twice_as_fast(self):
items = [Item("+5 Dexterity Vest", sell_in=0, quality=10)]
GildedRose(items).update_quality()
self.assertEqual(items[0].sell_in, -1)
self.assertEqual(items[0].quality, 8) # Decreases by 2 after expiry
def test_conjured_item_degrades_twice_as_fast(self):
items = [Item("Conjured Mana Cake", sell_in=3, quality=6)]
GildedRose(items).update_quality()
self.assertEqual(items[0].sell_in, 2)
self.assertEqual(items[0].quality, 5)
def test_conjured_item_degrades_four_times_as_fast_when_expired(self):
items = [Item("Conjured Mana Cake", sell_in=0, quality=6)]
GildedRose(items).update_quality()
self.assertEqual(items[0].sell_in, -1)
self.assertEqual(items[0].quality, 4)
if __name__ == '__main__':
unittest.main()