def test_partially_sort_sequence_using_top_down_merge_sort():
assert_equal(
MergeSort.top_down_mergesort([2, 1, 7, 4, 5, 6], delimeter=1), [1, 2, 7, 4, 5, 6])
assert_equal(
MergeSort.top_down_mergesort([45, 51, 92, 25, 93, 22, 35, 27, 29, 49, 80, 19],
delimeter=7),
[22, 25, 45, 51, 92, 93, 27, 29, 35, 49, 80, 19])
