def test_earns_only_unlockable_achievements(self):
ok = FakeAchievement()
not_ok = FakeAchievement(can_unlock=False)
achievements = [ok, not_ok]
sprinter_changes = [SprinterChange()]
processor = Processor(achievements)
earned = processor.earned_achievements(sprinter_changes, [])
expect(earned) == [ok]
