def test_merge_list_values(short_ll, long_ll):
"""test merged list with lists of varying lengths"""
ml(short_ll, long_ll)
assert long_ll.head.val == 8
assert long_ll.head._next.val == 16
def test_merge_list_empty_first_values(empty_ll, short_ll):
"""test merged list when one list is empty"""
ml(empty_ll, short_ll)
assert short_ll.head.val == 8
assert short_ll.head._next.val == 7
def test_merge_list_empty_first(empty_ll, short_ll):
"""test merged list when one list is empty"""
assert ml(empty_ll, short_ll) == 8
assert len(short_ll) == 4
def test_merge_list_same_values(short_ll, small_ll):
"""test merged list with lists of same length"""
ml(short_ll, small_ll)
assert small_ll.head.val == 8
assert small_ll.head._next.val == 4
assert small_ll.head._next._next._next._next._next._next._next.val == 1
def test_merge_list(short_ll, long_ll):
"""test merged list with lists of varying lengths"""
assert ml(short_ll, long_ll) == 8
assert len(long_ll) == 10
def test_merge_list_same(short_ll, small_ll):
"""test merged list with lists of same length"""
assert ml(short_ll, small_ll) == 8
assert len(small_ll) == 8