def test_concat_larger_sequences(self):
seq_lst = ['CATTG', 'GTCAT', 'AAGT', 'CAAA']
result = concat_sequences(seq_lst)
assert concat_sequences(seq_lst) == 'CAAAGTCATTG'
def test_concat_even_larger_sequences(self):
seq_lst = ['ATTAGACCTG', 'CCTGCCGGAA', 'AGACCTGCCG', 'GCCGGAATAC']
result = concat_sequences(seq_lst)
assert concat_sequences(seq_lst) == 'ATTAGACCTGCCGGAATAC'
def test_concat_sequences_out_of_order(self):
seq_lst = ['CATT', 'GTCA', 'AAGT']
result = concat_sequences(seq_lst)
assert concat_sequences(seq_lst) == 'AAGTCATT'