Function test_linked_list_len

python/pathway/tests/test_examples.py:104–135

()

def test_linked_list_len():
    nodes = T(
        """
      | next
    1 | 2
    2 | 3
    3 | 4
    4 | 5
    5 | 6
    6 | 7
    7 | 8
    8 |
    """,
    )
    nodes = nodes.select(next=nodes.pointer_from(this.next, optional=True))
    expected = T(
        """
      | len
    1 | 8
    2 | 7
    3 | 6
    4 | 5
    5 | 4
    6 | 3
    7 | 2
    8 | 1
    """
    )

    ret = linked_list_transformer(linked_list=nodes).linked_list

    assert_table_equality_wo_types(ret.select(ret.len), expected)


def test_linked_list_reversal():