def test_enqueue(new_queue):
"""Test that unique enqueued item is dequeued after all other items."""
val = make_unique_value()
new_queue.instance.enqueue(val)
for _ in range(new_queue.size):
new_queue.instance.dequeue()
assert new_queue.instance.dequeue() == val
def test_append_popleft(new_deque):
"""Test that unique appended item is popped after all other items."""
val = make_unique_value()
new_deque.instance.append(val)
for _ in new_deque.sequence:
new_deque.instance.popleft()
assert new_deque.instance.popleft() == val
def test_push_shift(new_dll):
"""Test that unique pushed item is shifted after all other items."""
val = make_unique_value()
new_dll.instance.push(val)
for _ in new_dll.sequence:
new_dll.instance.shift()
assert new_dll.instance.shift() == val
def test_insert_pop_bottom_priority(new_priorityq):
"""Test unique item insertd with low priority is popped last."""
val = make_unique_value()
priority = MIN_INT if MAX else MAX_INT
new_priorityq.instance.insert(val, priority)
for _ in new_priorityq.sorted_sequence:
new_priorityq.instance.pop()
assert new_priorityq.instance.pop() == val
def test_push(new_ll):
"""Test that unique pushed item is popped befire all other items."""
val = make_unique_value()
new_ll.instance.push(val)
assert new_ll.instance.pop() == val
def test_remove_fake_node(new_ll):
"""Test that attempt to remove a node not in list raises an error."""
val = make_unique_value()
fake_node = Node(val)
with pytest.raises(REMOVE_ERROR):
new_ll.instance.remove(fake_node)
def test_search_not_present(new_ll):
"""Test what happens when searching for something not in the list."""
val = make_unique_value()
assert new_ll.instance.search(val) is None
def test_insert_pop_top_priority(new_priorityq):
"""Test unique item inserted with top priority is immediately popped."""
val = make_unique_value()
priority = MAX_INT if MAX else MIN_INT
new_priorityq.instance.insert(val, priority)
assert new_priorityq.instance.pop() == val
def test_appendleft_popleft(new_deque):
"""Test that unique appendlefted item is popped."""
val = make_unique_value()
new_deque.instance.appendleft(val)
assert new_deque.instance.popleft() == val
def test_remove_error(new_dll):
"""Test remove throws ValueError when asked to remove a value not in DLL."""
val = make_unique_value()
with pytest.raises(new_dll.remove_error):
new_dll.instance.remove(val)
def test_append_shift(new_dll):
"""Test that unique appended item is popped after all other items."""
val = make_unique_value()
new_dll.instance.append(val)
assert new_dll.instance.shift() == val
def test_push_pop(new_dll):
"""Test that unique pushed item is popped."""
val = make_unique_value()
new_dll.instance.push(val)
assert new_dll.instance.pop() == val