def test_append_one():
test_list = LinkedList()
test_list.insert(2)
test_list.insert(3)
test_list.insert(1)
test_list.append(5)
actual = str(test_list)
expected = "{ 1 } -> { 3 } -> { 2 } -> { 5 } -> NULL"
assert actual == expected
def test_insertBefore_notInList(): test_list = LinkedList() test_list.insert(3) test_list.insert(1) test_list.append(5) test_list.append(11) test_list.append(3) actual = test_list.insertBefore(16,31) expected = "An error has occured" assert actual == expected
def test_insertBefore_begin():
test_list = LinkedList()
test_list.insert(3)
test_list.insert(1)
test_list.append(5)
test_list.append(11)
test_list.append(3)
test_list.insertBefore(1,31)
actual = str(test_list)
expected = "{ 31 } -> { 1 } -> { 3 } -> { 5 } -> { 11 } -> { 3 } -> NULL"
assert actual == expected
def test_insertBefore_middle():
test_list = LinkedList()
test_list.insert(3)
test_list.insert(1)
test_list.append(5)
test_list.append(11)
test_list.append(3)
test_list.insertBefore(5,8)
actual = str(test_list)
expected = "{ 1 } -> { 3 } -> { 8 } -> { 5 } -> { 11 } -> { 3 } -> NULL"
assert actual == expected
def test_append_empty_number():
test_list = LinkedList()
test_list.append(3)
actual = str(test_list)
expected = "{ 3 } -> NULL"
assert actual == expected
def test_append_one_emtpy():
test_list = LinkedList()
test_list.append("only thing")
actual = test_list.head.value
expected = "only thing"
assert actual == expected