# Copyright (C) 2009-2010 Wander Lairson Costa
#
# The following terms apply to all files associated
# with the software unless explicitly disclaimed in individual files.
#
# The authors hereby grant permission to use, copy, modify, distribute,
# and license this software and its documentation for any purpose, provided
# that existing copyright notices are retained in all copies and that this
# notice is included verbatim in any distributions. No written agreement,
# license, or royalty fee is required for any of the authorized uses.
# Modifications to this software may be copyrighted by their authors
# and need not follow the licensing terms described here, provided that
# the new terms are clearly indicated on the first page of each file where
# they apply.
#
# IN NO EVENT SHALL THE AUTHORS OR DISTRIBUTORS BE LIABLE TO ANY PARTY
# FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
# ARISING OUT OF THE USE OF THIS SOFTWARE, ITS DOCUMENTATION, OR ANY
# DERIVATIVES THEREOF, EVEN IF THE AUTHORS HAVE BEEN ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
#
# THE AUTHORS AND DISTRIBUTORS SPECIFICALLY DISCLAIM ANY WARRANTIES,
# INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE, AND NON-INFRINGEMENT. THIS SOFTWARE
# IS PROVIDED ON AN "AS IS" BASIS, AND THE AUTHORS AND DISTRIBUTORS HAVE
# NO OBLIGATION TO PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR
# MODIFICATIONS.
import utils
import unittest
import array
import devinfo
import usb.util
import usb.backend.libusb01 as libusb01
import usb.backend.libusb10 as libusb10
import usb.backend.openusb as openusb
class BackendTest(unittest.TestCase):
def __init__(self, backend):
unittest.TestCase.__init__(self)
self.backend = backend
def runTest(self):
self.test_enumerate_devices()
self.test_get_device_descriptor()
self.test_get_configuration_descriptor()
self.test_get_interface_descriptor()
self.test_get_endpoint_descriptor()
self.test_open_device()
self.test_set_configuration()
self.test_claim_interface()
self.test_set_interface_altsetting()
self.test_bulk_write_read()
self.test_intr_write_read()
self.test_iso_write_read()
self.test_ctrl_transfer()
self.test_release_interface()
self.test_reset_device()
self.test_close_device()
def test_enumerate_devices(self):
for d in self.backend.enumerate_devices():
desc = self.backend.get_device_descriptor(d)
if desc.idVendor == devinfo.ID_VENDOR and desc.idProduct == devinfo.ID_PRODUCT:
self.dev = d
return
self.fail('PyUSB test device not found')
def test_get_device_descriptor(self):
dsc = self.backend.get_device_descriptor(self.dev)
self.assertEqual(dsc.bLength, 18)
self.assertEqual(dsc.bDescriptorType, usb.util.DESC_TYPE_DEVICE)
self.assertEqual(dsc.bcdUSB, 0x0200)
self.assertEqual(dsc.idVendor, devinfo.ID_VENDOR)
self.assertEqual(dsc.idProduct, devinfo.ID_PRODUCT)
self.assertEqual(dsc.bcdDevice, 0x0001)
self.assertEqual(dsc.iManufacturer, 0x01)
self.assertEqual(dsc.iProduct, 0x02)
self.assertEqual(dsc.iSerialNumber, 0x00)
self.assertEqual(dsc.bNumConfigurations, 0x01)
self.assertEqual(dsc.bMaxPacketSize0, 64)
self.assertEqual(dsc.bDeviceClass, 0x00)
self.assertEqual(dsc.bDeviceSubClass, 0x00)
self.assertEqual(dsc.bDeviceProtocol, 0x00)
def test_get_configuration_descriptor(self):
cfg = self.backend.get_configuration_descriptor(self.dev, 0)
self.assertEqual(cfg.bLength, 9)
self.assertEqual(cfg.bDescriptorType, usb.util.DESC_TYPE_CONFIG)
self.assertEqual(cfg.wTotalLength, 60)
self.assertEqual(cfg.bNumInterfaces, 0x01)
self.assertEqual(cfg.bConfigurationValue, 0x01)
self.assertEqual(cfg.iConfiguration, 0x00)
self.assertEqual(cfg.bmAttributes, 0xC0)
self.assertEqual(cfg.bMaxPower, 50)
def test_get_interface_descriptor(self):
intf = self.backend.get_interface_descriptor(self.dev, 0, 0, 0)
self.assertEqual(intf.bLength, 9)
self.assertEqual(intf.bDescriptorType, usb.util.DESC_TYPE_INTERFACE)
self.assertEqual(intf.bInterfaceNumber, 0)
self.assertEqual(intf.bAlternateSetting, 0)
self.assertEqual(intf.bNumEndpoints, 6)
self.assertEqual(intf.bInterfaceClass, 0xFF)
self.assertEqual(intf.bInterfaceSubClass, 0xFF)
self.assertEqual(intf.bInterfaceProtocol, 0xFF)
self.assertEqual(intf.iInterface, 0x00)
def test_get_endpoint_descriptor(self):
ep = self.backend.get_endpoint_descriptor(self.dev, 0, 0, 0, 0)
self.assertEqual(ep.bLength, 7)
self.assertEqual(ep.bDescriptorType, usb.util.DESC_TYPE_ENDPOINT)
self.assertEqual(ep.bEndpointAddress, 0x01)
self.assertEqual(ep.bmAttributes, 0x02)
self.assertEqual(ep.wMaxPacketSize, 64)
self.assertEqual(ep.bInterval, 32)
def test_open_device(self):
self.handle = self.backend.open_device(self.dev)
def test_close_device(self):
self.backend.close_device(self.handle)
def test_set_configuration(self):
cfg = self.backend.get_configuration_descriptor(self.dev, 0)
self.backend.set_configuration(self.handle, cfg.bConfigurationValue)
def test_set_interface_altsetting(self):
intf = self.backend.get_interface_descriptor(self.dev, 0, 0, 0)
self.backend.set_interface_altsetting(self.handle,
intf.bInterfaceNumber,
intf.bAlternateSetting)
def test_claim_interface(self):
intf = self.backend.get_interface_descriptor(self.dev, 0, 0, 0)
self.backend.claim_interface(self.handle, intf.bInterfaceNumber)
def test_release_interface(self):
intf = self.backend.get_interface_descriptor(self.dev, 0, 0, 0)
self.backend.release_interface(self.handle, intf.bInterfaceNumber)
def test_bulk_write_read(self):
self.__write_read(self.backend.bulk_write,
self.backend.bulk_read,
devinfo.EP_BULK_OUT,
devinfo.EP_BULK_IN)
def test_intr_write_read(self):
self.__write_read(self.backend.intr_write,
self.backend.intr_read,
devinfo.EP_INTR_OUT,
devinfo.EP_INTR_IN)
def test_iso_write_read(self):
pass
def test_ctrl_transfer(self):
for data in (utils.get_array_data1(), utils.get_array_data2()):
ret = self.backend.ctrl_transfer(self.handle,
0x40,
devinfo.CTRL_LOOPBACK_WRITE,
0,
0,
data,
1000)
self.assertEqual(ret,
len(data),
'Failed to write data: ' + str(data))
ret = self.backend.ctrl_transfer(self.handle,
0xC0,
devinfo.CTRL_LOOPBACK_READ,
0,
0,
len(data),
1000)
self.assertEqual(ret,
data,
'Failed to read data: ' + str(data))
def test_reset_device(self):
self.backend.reset_device(self.handle)
utils.delay_after_reset()
def __write_read(self, write_fn, read_fn, ep_out, ep_in):
intf = self.backend.get_interface_descriptor(self.dev, 0, 0, 0).bInterfaceNumber
for data in (utils.get_array_data1(), utils.get_array_data2()):
ret = write_fn(self.handle, ep_out, intf, data, 1000)
self.assertEqual(ret,
len(data),
'Failed to write data: ' + \
str(data) + \
', in EP = ' + \
str(ep_out))
ret = read_fn(self.handle, ep_in, intf, len(data), 1000)
self.assertEqual(ret,
data,
'Failed to read data: ' + \
str(data) + \
', in EP = ' + \
str(ep_in))
def get_suite():
suite = unittest.TestSuite()
if utils.is_test_hw_present():
for m in (libusb10, libusb01, openusb):
b = m.get_backend()
if b is not None:
utils.logger.info('Adding %s(%s) to test suite...', BackendTest.__name__, m.__name__)
suite.addTest(BackendTest(b))
else:
utils.logger.warning('%s(%s) is not available', BackendTest.__name__, m.__name__)
else:
utils.logger.warning('Test hardware not connected')
return suite
if __name__ == '__main__':
utils.run_tests(get_suite())
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