def test_write_bytes(self):
writer = BigEndianByteArrayByteWriter()
bytes_to_write = [1, 2, 3, 4, 5, 6]
writer.write_bytes(bytes_to_write)
self.assertEqual(writer.get_n_bytes_written(), len(bytes_to_write))
self.assertEqual(writer.data, bytearray(bytes_to_write))
