def test_transfer_bitcoin_dust_change(self):
        outputs = self.generate_outputs([
            (150, b'source', None, 0)
        ])

        spec = openassets.transactions.TransferParameters(outputs, b'target', b'change', 10 - 9 - 150)
        self.assertRaises(
            openassets.transactions.DustOutputError,
            self.target.transfer_bitcoin, spec, 10)
dataset/ETHPy150Open OpenAssets/openassets/tests/test_transactions.py/TransactionBuilderTests.test_transfer_bitcoin_dust_change/swapped operands of `-`