def test_last():
singly_list = SinglyLinkedList(name='singly list get last')
print(singly_list.last())
singly_list.append_element('l')
print(singly_list.last())
singly_list.append_element('a')
singly_list.append_element('s')
print(singly_list.last())
def test_element_at_index():
singly_list = SinglyLinkedList(name='singly list get element')
# print(singly_list.element_at_index(0))
singly_list.append_element('g')
singly_list.append_element('e')
singly_list.append_element('t')
print(singly_list.element_at_index(0))
print(singly_list.element_at_index(1))
print(singly_list.element_at_index(2))
def test_update_element_at_index():
singly_list = SinglyLinkedList(name='singly list update')
singly_list.append_element('e')
singly_list.append_element('t')
singly_list.append_element('a')
singly_list.update_element_at_index('d', 2)
singly_list.print_all_element()
singly_list.update_element_at_index('u', 0)
singly_list.print_all_element()
singly_list.update_element_at_index('p', 1)
singly_list.print_all_element()
def test_remove_element_at_index():
singly_list_a = SinglyLinkedList(name='singly list remove first')
singly_list_a.append_element('j')
singly_list_a.append_element('k')
singly_list_a.append_element('l')
singly_list_a.remove_element_at_index(0)
singly_list_a.print_all_element()
singly_list_b = SinglyLinkedList(name='singly list remove')
singly_list_b.append_element('j')
singly_list_b.append_element('k')
singly_list_b.append_element('l')
singly_list_b.remove_element_at_index(1)
singly_list_b.print_all_element()
singly_list_c = SinglyLinkedList(name='singly list remove last')
singly_list_c.append_element('j')
singly_list_c.append_element('k')
singly_list_c.append_element('l')
singly_list_c.remove_element_at_index(2)
singly_list_c.print_all_element()
def test_append_element():
singly_list = SinglyLinkedList(name='singly list append')
singly_list.print_all_element()
singly_list.append_element('a')
singly_list.print_all_element()
singly_list.append_element('c')
singly_list.print_all_element()
singly_list.append_element('b')
singly_list.print_all_element()
singly_list.append_element('f')
singly_list.print_all_element()
def test_insert_element_at_index():
singly_list = SinglyLinkedList(name='singly list insert')
singly_list.print_all_element()
# singly_list.insert_element_at_index('a', 10)
# singly_list.print_all_element()
singly_list.insert_element_at_index('a', 0)
singly_list.print_all_element()
singly_list.insert_element_at_index('b', 0)
singly_list.print_all_element()
singly_list.insert_element_at_index('c', 1)
singly_list.print_all_element()
singly_list.insert_element_at_index('d', 2)
singly_list.print_all_element()
def test_index_of_element():
print('index of element test ------------------------')
singly_list = SinglyLinkedList(name='singly list get index')
singly_list.append_element('g')
singly_list.append_element('e')
singly_list.append_element('t')
singly_list.append_element('i')
singly_list.append_element('n')
print(singly_list.index_of_element('g'))
print(singly_list.index_of_element('t'))
print(singly_list.index_of_element('n'))
print(singly_list.index_of_element('not exist'))
print(singly_list.index_of_element(None))