def test_remove_item_stack_with_items():
stack = Stack([{"age": 30, 'name': "Samuel"}, {"age": 18, 'name': "John"}])
assert stack.length == 2
stack.remove()
assert stack.length == 1
stack.remove()
assert stack.length == 0
with pytest.raises(Exception):
stack.remove()
def test_clone_stack_with_items():
stack = Stack([{"name": "Jessica"}])
new_stack = stack.clone()
assert stack != new_stack
assert type(stack) == Stack
assert type(new_stack) == Stack
def test_clone_empty_stack():
stack = Stack()
new_stack = stack.clone()
assert stack != new_stack
assert type(stack) == Stack
assert type(new_stack) == Stack
def test_get_items_stack_with_items():
stack = Stack([{"age": 19}])
assert stack.length == 1
my_items = stack.get_items()
assert my_items == [{"age": 19}]
def test_get_items_empty_stack():
stack = Stack()
assert stack.length == 0
my_items = stack.get_items()
assert my_items == []
def test_get_last_item_stack_with_items():
stack = Stack([{"age": 30, 'name': "Samuel"}, {"age": 18, 'name': "John"}])
assert stack.length == 2
my_last_item = stack.last_item()
assert my_last_item == {"age": 18, 'name': "John"}
def test_create_empty_stack():
stack = Stack()
assert stack.length == 0
assert stack._Stack__array == []
assert type(stack._Stack__array) == list
def test_get_last_item_empty_stack():
stack = Stack()
assert stack.length == 0
with pytest.raises(Exception):
stack.last_item()
def test_remove_item_empty_stack():
stack = Stack()
assert stack.length == 0
with pytest.raises(Exception):
stack.remove()
def test_add_item_stack_with_element():
stack = Stack([{"age": 30}])
assert stack.length == 1
stack.add({"name": "Alex"})
assert stack.length == 2
def test_add_item_empty_stack():
stack = Stack()
stack.add({"age": 30})
assert stack.length == 1
def test_create_stack_with_element():
stack = Stack([{"name": "Anna", "age": 28}])
assert stack.length == 1
assert stack._Stack__array == [{"name": "Anna", "age": 28}]