def test_remove_head(self):
seq_lst = ["AB", "BC", "CD"]
s = SeqList(seq_lst)
s.remove(s.head_node)
new_seq_lst = ["BC", "CD"]
for i, seq in enumerate(s):
assert new_seq_lst[i] == str(seq)
assert len(new_seq_lst) == len(s)
def test_remove_tail(self):
seq_lst = ["AB", "BC", "CD"]
s = SeqList(seq_lst)
tail = s.head_node.next_node.next_node
s.remove(tail)
new_seq_lst = ["AB", "BC"]
for i, seq in enumerate(s):
assert new_seq_lst[i] == str(seq)
assert len(new_seq_lst) == len(s)