tools/usb_gadget/hid_descriptors_test.py

   1 #!/usr/bin/python
   2 # Copyright 2014 The Chromium Authors. All rights reserved.
   3 # Use of this source code is governed by a BSD-style license that can be
   4 # found in the LICENSE file.
   5
   6 import unittest
   7
   8 import hid_descriptors
   9 import keyboard_gadget
  10 import mouse_gadget
  11
  12
  13 class HidTest(unittest.TestCase):
  14
  15   def test_keyboard_example(self):
  16     expected = ''.join(chr(x) for x in [
  17         0x05, 0x01, 0x09, 0x06, 0xA1, 0x01, 0x05, 0x07, 0x19, 0xE0, 0x29,
  18         0xE7, 0x15, 0x00, 0x25, 0x01, 0x75, 0x01, 0x95, 0x08, 0x81, 0x02,
  19         0x95, 0x01, 0x75, 0x08, 0x81, 0x01, 0x95, 0x05, 0x75, 0x01, 0x05,
  20         0x08, 0x19, 0x01, 0x29, 0x05, 0x91, 0x02, 0x95, 0x01, 0x75, 0x03,
  21         0x91, 0x01, 0x95, 0x06, 0x75, 0x08, 0x15, 0x00, 0x25, 0x65, 0x05,
  22         0x07, 0x19, 0x00, 0x29, 0x65, 0x81, 0x00, 0xC0
  23     ])
  24     self.assertEquals(keyboard_gadget.KeyboardFeature.REPORT_DESC, expected)
  25
  26   def test_mouse_example(self):
  27     expected = ''.join(chr(x) for x in [
  28         0x05, 0x01, 0x09, 0x02, 0xA1, 0x01, 0x09, 0x01, 0xA1, 0x00, 0x05, 0x09,
  29         0x19, 0x01, 0x29, 0x03, 0x15, 0x00, 0x25, 0x01, 0x95, 0x03, 0x75, 0x01,
  30         0x81, 0x02, 0x95, 0x01, 0x75, 0x05, 0x81, 0x01, 0x05, 0x01, 0x09, 0x30,
  31         0x09, 0x31, 0x15, 0x81, 0x25, 0x7F, 0x75, 0x08, 0x95, 0x02, 0x81, 0x06,
  32         0xC0, 0xC0
  33     ])
  34     self.assertEquals(mouse_gadget.MouseFeature.REPORT_DESC, expected)
  35
  36   def test_tag(self):
  37     self.assertEquals(hid_descriptors.Push(), '\xa4')
  38
  39   def test_2byte_tag(self):
  40     self.assertEquals(hid_descriptors.LogicalMaximum(0xFF00), '\x26\x00\xFF')
  41
  42   def test_4byte_tag(self):
  43     self.assertEquals(hid_descriptors.LogicalMaximum(0xFF884400),
  44                       '\x27\x00\x44\x88\xFF')
  45
  46   def test_long_tag(self):
  47     with self.assertRaises(NotImplementedError):
  48       hid_descriptors.LogicalMaximum(0xFFFFFFFFFFFFFFFF)
  49
  50 if __name__ == '__main__':
  51   unittest.main()