test_clf_pn532.py 文件源码

def test_init_linux_version_ack_err(self, mocker, transport):  # noqa: F811
        mocker.patch('nfc.clf.pn532.Device.__init__').return_value = None
        mocker.patch('nfc.clf.pn532.open').return_value = ["cpuinfo"]
        mocker.patch('os.system').return_value = -1
        sys.platform = "linux"

        transport.write.return_value = None
        transport.read.side_effect = [
            ERR(),                                        # GetFirmwareVersion
        ]
        with pytest.raises(IOError) as excinfo:
            nfc.clf.pn532.init(transport)
        assert excinfo.value.errno == errno.ENODEV
        assert transport.write.mock_calls == [call(_) for _ in [
            HEX(10 * '00') + CMD('02'),                   # GetFirmwareVersion
        ]]