def test_write_bytes(self):
writer = LittleEndianByteArrayByteWriter()
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))
