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test_util.py
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test_util.py
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# Copyright (C) 2009-2017 Wander Lairson Costa
# Copyright (C) 2017-2018 Robert Wlodarczyk
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import utils
import unittest
from usb.util import *
from devinfo import *
from usb._debug import methodtrace
import usb.backend
class _ConfigurationDescriptor(object):
def __init__(self, bConfigurationValue):
self.bLength = 9
self.bDescriptorType = DESC_TYPE_CONFIG
self.wTotalLength = 18
self.bNumInterfaces = 0
self.bConfigurationValue = bConfigurationValue
self.iConfiguration = 0
self.bmAttributes = 0xc0
self.bMaxPower = 50
class _DeviceDescriptor(object):
def __init__(self):
self.configurations = (_ConfigurationDescriptor(1), _ConfigurationDescriptor(2))
self.bLength = 18
self.bDescriptorType = usb.util.DESC_TYPE_DEVICE
self.bcdUSB = 0x0200
self.idVendor = ID_VENDOR
self.idProduct = ID_PRODUCT
self.bcdDevice = 0x0001
self.iManufacturer = 0
self.iProduct = 0
self.iSerialNumber = 0
self.bNumConfigurations = len(self.configurations)
self.bMaxPacketSize0 = 64
self.bDeviceClass = 0xff
self.bDeviceSubClass = 0xff
self.bDeviceProtocol = 0xff
class FindDescriptorTest(unittest.TestCase):
@methodtrace(utils.logger)
def runTest(self):
d = usb.core.find(idVendor=ID_VENDOR)
if d is None:
return
self.assertEqual(find_descriptor(d, bConfigurationValue=10), None)
self.assertNotEqual(find_descriptor(d, bConfigurationValue=1), None)
self.assertEqual(len(list(find_descriptor(d, find_all=True, bConfigurationValue=10))), 0)
self.assertEqual(len(list(find_descriptor(d, find_all=True, bConfigurationValue=1))), 1)
self.assertEqual(len(list(find_descriptor(d, find_all=True))), d.bNumConfigurations)
self.assertEqual(find_descriptor(d, custom_match = lambda c: c.bConfigurationValue == 10), None)
self.assertNotEqual(find_descriptor(d, custom_match = lambda c: c.bConfigurationValue == 1), None)
self.assertEqual(len(list(find_descriptor(d, find_all=True, custom_match = lambda c: c.bConfigurationValue == 10))), 0)
self.assertEqual(len(list(find_descriptor(d, find_all=True, custom_match = lambda c: c.bConfigurationValue == 1))), 1)
self.assertEqual(find_descriptor(d, custom_match = lambda c: c.bConfigurationValue == 10, bLength=9), None)
self.assertNotEqual(find_descriptor(d, custom_match = lambda c: c.bConfigurationValue == 1, bLength=9), None)
cfg = find_descriptor(d)
self.assertTrue(isinstance(cfg, usb.core.Configuration))
intf = find_descriptor(cfg)
self.assertTrue(isinstance(intf, usb.core.Interface))
class UtilTest(unittest.TestCase):
@methodtrace(utils.logger)
def test_endpoint_address(self):
self.assertEqual(endpoint_address(0x01), 0x01)
self.assertEqual(endpoint_address(0x81), 0x01)
@methodtrace(utils.logger)
def test_endpoint_direction(self):
self.assertEqual(endpoint_direction(0x01), ENDPOINT_OUT)
self.assertEqual(endpoint_direction(0x81), ENDPOINT_IN)
@methodtrace(utils.logger)
def test_endpoint_type(self):
self.assertEqual(endpoint_type(ENDPOINT_TYPE_CTRL), ENDPOINT_TYPE_CTRL)
self.assertEqual(endpoint_type(ENDPOINT_TYPE_ISO), ENDPOINT_TYPE_ISO)
self.assertEqual(endpoint_type(ENDPOINT_TYPE_INTR), ENDPOINT_TYPE_INTR)
self.assertEqual(endpoint_type(ENDPOINT_TYPE_BULK), ENDPOINT_TYPE_BULK)
@methodtrace(utils.logger)
def test_ctrl_direction(self):
self.assertEqual(ctrl_direction(CTRL_OUT), CTRL_OUT)
self.assertEqual(ctrl_direction(CTRL_IN), CTRL_IN)
@methodtrace(utils.logger)
def test_build_request_type(self):
self.assertEqual(build_request_type(CTRL_OUT, CTRL_TYPE_STANDARD, CTRL_RECIPIENT_DEVICE), 0x00)
self.assertEqual(build_request_type(CTRL_OUT, CTRL_TYPE_STANDARD, CTRL_RECIPIENT_INTERFACE), 0x01)
self.assertEqual(build_request_type(CTRL_OUT, CTRL_TYPE_STANDARD, CTRL_RECIPIENT_ENDPOINT), 0x02)
self.assertEqual(build_request_type(CTRL_OUT, CTRL_TYPE_STANDARD, CTRL_RECIPIENT_OTHER), 0x03)
self.assertEqual(build_request_type(CTRL_OUT, CTRL_TYPE_CLASS, CTRL_RECIPIENT_DEVICE), 0x20)
self.assertEqual(build_request_type(CTRL_OUT, CTRL_TYPE_CLASS, CTRL_RECIPIENT_INTERFACE), 0x21)
self.assertEqual(build_request_type(CTRL_OUT, CTRL_TYPE_CLASS, CTRL_RECIPIENT_ENDPOINT), 0x22)
self.assertEqual(build_request_type(CTRL_OUT, CTRL_TYPE_CLASS, CTRL_RECIPIENT_OTHER), 0x23)
self.assertEqual(build_request_type(CTRL_OUT, CTRL_TYPE_VENDOR, CTRL_RECIPIENT_DEVICE), 0x40)
self.assertEqual(build_request_type(CTRL_OUT, CTRL_TYPE_VENDOR, CTRL_RECIPIENT_INTERFACE), 0x41)
self.assertEqual(build_request_type(CTRL_OUT, CTRL_TYPE_VENDOR, CTRL_RECIPIENT_ENDPOINT), 0x42)
self.assertEqual(build_request_type(CTRL_OUT, CTRL_TYPE_VENDOR, CTRL_RECIPIENT_OTHER), 0x43)
self.assertEqual(build_request_type(CTRL_OUT, CTRL_TYPE_RESERVED, CTRL_RECIPIENT_DEVICE), 0x60)
self.assertEqual(build_request_type(CTRL_OUT, CTRL_TYPE_RESERVED, CTRL_RECIPIENT_INTERFACE), 0x61)
self.assertEqual(build_request_type(CTRL_OUT, CTRL_TYPE_RESERVED, CTRL_RECIPIENT_ENDPOINT), 0x62)
self.assertEqual(build_request_type(CTRL_OUT, CTRL_TYPE_RESERVED, CTRL_RECIPIENT_OTHER), 0x63)
self.assertEqual(build_request_type(CTRL_IN, CTRL_TYPE_STANDARD, CTRL_RECIPIENT_DEVICE), 0x80)
self.assertEqual(build_request_type(CTRL_IN, CTRL_TYPE_STANDARD, CTRL_RECIPIENT_INTERFACE), 0x81)
self.assertEqual(build_request_type(CTRL_IN, CTRL_TYPE_STANDARD, CTRL_RECIPIENT_ENDPOINT), 0x82)
self.assertEqual(build_request_type(CTRL_IN, CTRL_TYPE_STANDARD, CTRL_RECIPIENT_OTHER), 0x83)
self.assertEqual(build_request_type(CTRL_IN, CTRL_TYPE_CLASS, CTRL_RECIPIENT_DEVICE), 0xa0)
self.assertEqual(build_request_type(CTRL_IN, CTRL_TYPE_CLASS, CTRL_RECIPIENT_INTERFACE), 0xa1)
self.assertEqual(build_request_type(CTRL_IN, CTRL_TYPE_CLASS, CTRL_RECIPIENT_ENDPOINT), 0xa2)
self.assertEqual(build_request_type(CTRL_IN, CTRL_TYPE_CLASS, CTRL_RECIPIENT_OTHER), 0xa3)
self.assertEqual(build_request_type(CTRL_IN, CTRL_TYPE_VENDOR, CTRL_RECIPIENT_DEVICE), 0xc0)
self.assertEqual(build_request_type(CTRL_IN, CTRL_TYPE_VENDOR, CTRL_RECIPIENT_INTERFACE), 0xc1)
self.assertEqual(build_request_type(CTRL_IN, CTRL_TYPE_VENDOR, CTRL_RECIPIENT_ENDPOINT), 0xc2)
self.assertEqual(build_request_type(CTRL_IN, CTRL_TYPE_VENDOR, CTRL_RECIPIENT_OTHER), 0xc3)
self.assertEqual(build_request_type(CTRL_IN, CTRL_TYPE_RESERVED, CTRL_RECIPIENT_DEVICE), 0xe0)
self.assertEqual(build_request_type(CTRL_IN, CTRL_TYPE_RESERVED, CTRL_RECIPIENT_INTERFACE), 0xe1)
self.assertEqual(build_request_type(CTRL_IN, CTRL_TYPE_RESERVED, CTRL_RECIPIENT_ENDPOINT), 0xe2)
self.assertEqual(build_request_type(CTRL_IN, CTRL_TYPE_RESERVED, CTRL_RECIPIENT_OTHER), 0xe3)
def get_suite():
suite = unittest.TestSuite()
suite.addTest(FindDescriptorTest())
suite.addTest(unittest.defaultTestLoader.loadTestsFromTestCase(UtilTest))
return suite
if __name__ == '__main__':
utils.run_tests(get_suite())