def test_push_back_in_empty_list():
list = LinkedList()
list.push_back(10)
assert list.size == 1
assert list.is_empty == False
assert len(list) == 1
def value_at_fixture():
list = LinkedList()
for i in range(10):
list.push_back(i)
return list
def search_fixture():
list = LinkedList()
for i in range(5):
list.push_front(i)
return list
def test_front():
list = LinkedList()
list.push_front(1)
assert list.front == 1
assert list.size == 1
assert list.is_empty == False
assert len(list) == 1
def test_push_back_using_back():
list = LinkedList()
list.back = 1
assert list.front == 1
assert list.back == 1
assert list.size == 1
assert list.is_empty == False
assert len(list) == 1
def test_back_and_push():
list = LinkedList()
list.push_back(11)
assert list.back == 11
assert list.front == 11
assert list.size == 1
assert list.is_empty == False
assert len(list) == 1
def test_change_front_element():
list = LinkedList()
for i in range(5):
list.push_front(i)
assert list.front == 4
assert list.back == 0
list.front = 100
assert list.front == 100
assert list.back == 0
def test_make_list():
list = LinkedList()
assert list.size == 0
assert list.is_empty == True
assert len(list) == 0
def test_back_from_empty():
list = LinkedList()
with pytest.raises(CollectionIsEmptyExeption) as exception_info:
value = list.back
assert str(exception_info.value) == list_is_empty()
def test_remove_from_empty_list():
list = LinkedList()
assert list.remove_value(100) is False
def test_pop_front_negative(value_at_fixture):
list = LinkedList()
with pytest.raises(CollectionIsEmptyExeption) as exception_info:
value = list.pop_back()
assert str(exception_info.value) == list_is_empty()
def test_value_at_empty_list():
list = LinkedList()
with pytest.raises(CollectionIsEmptyExeption) as exception_info:
value = list.value_at(list.size)
assert str(exception_info.value) == list_is_empty()
def test_search_in_empty_list_using_in():
list = LinkedList()
assert (10 in list) == False
def test_search_in_empty_list():
list = LinkedList()
assert list.contains(10) == False