def test_insert():
dl = DiskList(range(10))
dl.insert(-1, 9)
dl.insert(-100, 0)
dl.insert(100, 10)
dl.destroy()
dl = DiskList()
dl.insert(0, 5)
dl.destroy()
dl = DiskList(range(5, 15))
for rpt in range(8):
dl.insert(0, 4)
dl.destroy()
dl = DiskList(range(10))
dl.insert(8, 8)
dl.destroy()
def test_insert_insert2():
dl = DiskList(range(10))
dl.insert(0, 10)
dl.destroy()
def test_insert_insert1():
dl = DiskList(range(10))
dl.insert(10, 5)
dl.destroy()