def METHOD_NAME(self):
    """Pad the sequence with 0 if the sequence is smaller than the block size."""
    sequence = [1, 2, 3, 4]
    expected_output = [1, 2, 3, 4, 0, 0, 0, 0, 0, 0]
    self.assertEqual(truncate_or_pad(sequence, self.block_size, 0), expected_output)