test_clf_transport.py 文件源码

def test_write(self, usb):
        usb.write(b'12')
        usb.usb_dev.bulkWrite.assert_called_with(0x04, b'12', 0)

        usb.write(b'12', 100)
        usb.usb_dev.bulkWrite.assert_called_with(0x04, b'12', 100)

        usb.write(64 * b'1', 100)
        usb.usb_dev.bulkWrite.assert_has_calls([
            call(0x04, 64 * b'1', 100),
            call(0x04, b'', 100),
        ])

        usb.usb_dev.bulkWrite.side_effect = [
            nfc.clf.transport.libusb.USBErrorTimeout,
            nfc.clf.transport.libusb.USBErrorNoDevice,
            nfc.clf.transport.libusb.USBError,
        ]
        with pytest.raises(IOError) as excinfo:
            usb.write(b'12')
        assert excinfo.value.errno == errno.ETIMEDOUT

        with pytest.raises(IOError) as excinfo:
            usb.write(b'12')
        assert excinfo.value.errno == errno.ENODEV

        with pytest.raises(IOError) as excinfo:
            usb.write(b'12')
        assert excinfo.value.errno == errno.EIO

        usb.usb_out = None
        assert usb.write(b'12') is None