def test_remove_all_nodes_with_value_empty():
my_linked_list = LinkedList()
my_linked_list.remove_all_nodes_with_value(0)
assert my_linked_list.get_node_count() == 0
assert my_linked_list.get_head_node() is None
assert my_linked_list.get_value_at_position(0) is None
assert my_linked_list.get_value_at_position(1) is None
def test_remove_all_nodes_with_value_multiple_at_start_and_end():
my_linked_list = LinkedList()
input_values = [0, 0, 0, 0, 0, 1, 0, 2, 3, 0, 4, 5, 6, 0, 7, 8, 9, 0, 0, 0]
expected_output_values = [1, 2, 3, 4, 5, 6, 7, 8, 9]
my_linked_list.append_nodes(input_values)
my_linked_list.remove_all_nodes_with_value(0)
actual_output_values = linked_list_values_to_array(my_linked_list)
assert expected_output_values == actual_output_values
def test_remove_all_nodes_with_value_not_in_list():
my_linked_list = LinkedList()
input_values = [1, 2, 3, 4, 5, 6, 7, 8, 9]
my_linked_list.append_nodes(input_values)
my_linked_list.remove_all_nodes_with_value(0)
expected_output_values = [1, 2, 3, 4, 5, 6, 7, 8, 9]
actual_output_values = linked_list_values_to_array(my_linked_list)
assert expected_output_values == actual_output_values
def test_remove_all_nodes_with_value_length2():
my_linked_list = LinkedList()
my_linked_list.append_nodes([0, 1])
my_linked_list.remove_all_nodes_with_value(1)
assert my_linked_list.get_node_count() == 1
assert my_linked_list.get_head_node().value == 0
my_linked_list.append_node(1)
my_linked_list.remove_all_nodes_with_value(0)
assert my_linked_list.get_node_count() == 1
assert my_linked_list.get_head_node().value == 1
assert my_linked_list.get_value_at_position(2) is None