def test_recent_items_queue_remove():
ris = RecentItemStack(4)
ris.push(1)
ris.push(2)
eq_(list(ris), [1, 2])
ris.discard(1)
eq_(list(ris), [2])
def test_recent_items_queue_reset():
items = list(range(10))
ris = RecentItemStack(4)
ris.reset(items)
eq_(len(ris), 4)
eq_(list(ris), items[-4:])
ris.reset()
eq_(len(ris), 0)
def test_recent_items_queue_update_and_pop():
ris = RecentItemStack(4)
items = [8, 2, 6, 4, 5, 7]
for item in items:
ris.push(item)
eq_(len(ris), 4)
for item in reversed(items[-4:]):
eq_(ris.pop(), item)
eq_(len(ris), 0)
def test_recent_items_queue_push_existing():
ris = RecentItemStack(4)
ris.push(1)
ris.push(2)
ris.push(3)
eq_(list(ris), [1, 2, 3])
ris.push(1)
eq_(list(ris), [2, 3, 1])
ris.push(3)
eq_(list(ris), [2, 1, 3])
def test_recent_items_pop_empty():
ris = RecentItemStack(4)
eq_(len(ris), 0)
assert ris.pop() is None
def test_recent_items_size_zero():
ris = RecentItemStack(0)
eq_(list(ris), [])
ris.push(1)
eq_(list(ris), [])
eq_(ris.pop(), None)
