def test_delete_element():
l_list = LinkedList()
l_list.add_element(index=0, data="Hi!")
assert len(l_list) == 1
l_list.delete_element(index=0)
assert len(l_list) == 0
with pytest.raises(LinkedList.WrongIndexException):
l_list.get_element_data(index=0)
def test_delete_many_elements():
l_list = LinkedList()
for i in range(10):
l_list.add_element(index=i, data=i)
assert len(l_list) == 10
l_list.delete_element(len(l_list) - 1)
assert len(l_list) == 9
l_list.delete_element(0)
assert len(l_list) == 8
l_list.delete_element(5)
assert len(l_list) == 7
l_list.add_element(index=5, data="wubbalubbadubdub")
assert len(l_list) == 8
assert l_list.to_list() == [1, 2, 3, 4, 5, "wubbalubbadubdub", 7, 8]
def test_getting_element():
l_list = LinkedList()
l_list.add_element(index=0, data=1)
assert l_list.get_element_data(index=0) == 1
assert len(l_list) == 1
l_list.add_element(index=0, data=5)
assert l_list.get_element_data(index=0) == 5
assert len(l_list) == 2
l_list.add_element(index=2, data=7)
assert l_list.get_element_data(index=2) == 7
assert l_list.get_element_data(index=1) == 1
assert len(l_list) == 3
def test_to_list():
l_list = LinkedList()
for i in range(10):
l_list.add_element(index=i, data=i)
assert l_list.to_list() == list(range(10))
def test_list_with_one_element():
l_list = LinkedList()
l_list.add_element(index=0, data=123)
assert len(l_list) == 1
assert l_list.get_element_data(0) == 123
