1 # Copyright 2015 The Chromium OS Authors. All rights reserved. 2 # Use of this source code is governed by a BSD-style license that can be 3 # found in the LICENSE file. 4 5 import array 6 import logging 7 import unittest 8 9 import common 10 from autotest_lib.client.cros.cellular.mbim_compliance import mbim_constants 11 from autotest_lib.client.cros.cellular.mbim_compliance import mbim_data_transfer 12 13 class TestMbimDeviceContext(object): 14 """ Dummy device context. """ 15 pass 16 17 class TestMbimDescriptorCache(object): 18 """ Dummy MBIM descriptor cache. """ 19 pass 20 21 class TestMbimEndpointDescriptor(object): 22 """ Dummy MBIM endpoint descriptor. """ 23 pass 24 25 class MBIMMessageTestCase(unittest.TestCase): 26 """ Test cases for verifying MBIMDataTransfer class and MBIMNtb class. """ 27 28 def test_ntb_generation(self): 29 """ Verifies the NTB frame generation from the given payload. """ 30 31 ntb = mbim_data_transfer.MBIMNtb(mbim_constants.NTB_FORMAT_32) 32 payload = [array.array('B', [0x45, 0x00, 0x00, 0x46, 0x00, 0x00, 0x00, 33 0x00, 0x00, 0x01, 0xBC, 0xB4, 0x7F, 0x00, 34 0x00, 0x01, 0x7F, 0x00, 0x00, 0x02, 0x00, 35 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 36 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, 37 0x68, 0x69, 0x6A, 0x6B, 0x6C, 0x6D, 0x6E, 38 0x6F, 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 39 0x76, 0x77, 0x61, 0x62, 0x63, 0x64, 0x65, 40 0x66, 0x67, 0x68, 0x69, 0x00, 0x00, 0x00, 41 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 42 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 43 0x00, 0x00, 0x00])] 44 ntb_frame = ntb.generate_ntb(payload, 1024, 32, 0, 1) 45 verify_ntb_frame = array.array('B', [0x6E, 0x63, 0x6D, 0x68, 0x10, 46 0x00, 0x00, 0x00, 0x90, 0x00, 47 0x00, 0x00, 0x70, 0x00, 0x00, 48 0x00, 0x00, 0x00, 0x00, 0x00, 49 0x00, 0x00, 0x00, 0x00, 0x00, 50 0x00, 0x00, 0x00, 0x00, 0x00, 51 0x00, 0x00, 0x45, 0x00, 0x00, 52 0x46, 0x00, 0x00, 0x00, 0x00, 53 0x00, 0x01, 0xBC, 0xB4, 0x7F, 54 0x00, 0x00, 0x01, 0x7F, 0x00, 55 0x00, 0x02, 0x00, 0x00, 0x00, 56 0x00, 0x00, 0x00, 0x00, 0x01, 57 0x61, 0x62, 0x63, 0x64, 0x65, 58 0x66, 0x67, 0x68, 0x69, 0x6A, 59 0x6B, 0x6C, 0x6D, 0x6E, 0x6F, 60 0x70, 0x71, 0x72, 0x73, 0x74, 61 0x75, 0x76, 0x77, 0x61, 0x62, 62 0x63, 0x64, 0x65, 0x66, 0x67, 63 0x68, 0x69, 0x00, 0x00, 0x00, 64 0x00, 0x00, 0x00, 0x00, 0x00, 65 0x00, 0x00, 0x00, 0x00, 0x00, 66 0x00, 0x00, 0x00, 0x00, 0x00, 67 0x00, 0x00, 0x69, 0x70, 0x73, 68 0x00, 0x20, 0x00, 0x00, 0x00, 69 0x00, 0x00, 0x00, 0x00, 0x00, 70 0x00, 0x00, 0x00, 0x20, 0x00, 71 0x00, 0x00, 0x50, 0x00, 0x00, 72 0x00, 0x00, 0x00, 0x00, 0x00, 73 0x00, 0x00, 0x00, 0x00]) 74 self.assertEqual(ntb_frame, verify_ntb_frame) 75 76 77 def test_ntb_parsing(self): 78 """ Verifies the NTB frame parsing from the given NTB frame. """ 79 80 ntb = mbim_data_transfer.MBIMNtb(mbim_constants.NTB_FORMAT_32) 81 ntb_frame = array.array('B', [0x6E, 0x63, 0x6D, 0x68, 0x10, 82 0x00, 0x01, 0x00, 0x90, 0x00, 83 0x00, 0x00, 0x70, 0x00, 0x00, 84 0x00, 0x00, 0x00, 0x00, 0x00, 85 0x00, 0x00, 0x00, 0x00, 0x00, 86 0x00, 0x00, 0x00, 0x00, 0x00, 87 0x00, 0x00, 0x45, 0x00, 0x00, 88 0x46, 0x00, 0x00, 0x00, 0x00, 89 0x00, 0x01, 0xBC, 0xB4, 0x7F, 90 0x00, 0x00, 0x01, 0x7F, 0x00, 91 0x00, 0x02, 0x00, 0x00, 0x00, 92 0x00, 0x00, 0x00, 0x00, 0x01, 93 0x61, 0x62, 0x63, 0x64, 0x65, 94 0x66, 0x67, 0x68, 0x69, 0x6A, 95 0x6B, 0x6C, 0x6D, 0x6E, 0x6F, 96 0x70, 0x71, 0x72, 0x73, 0x74, 97 0x75, 0x76, 0x77, 0x61, 0x62, 98 0x63, 0x64, 0x65, 0x66, 0x67, 99 0x68, 0x69, 0x00, 0x00, 0x00, 100 0x00, 0x00, 0x00, 0x00, 0x00, 101 0x00, 0x00, 0x00, 0x00, 0x00, 102 0x00, 0x00, 0x00, 0x00, 0x00, 103 0x00, 0x00, 0x69, 0x70, 0x73, 104 0x00, 0x20, 0x00, 0x00, 0x00, 105 0x00, 0x00, 0x00, 0x00, 0x00, 106 0x00, 0x00, 0x00, 0x20, 0x00, 107 0x00, 0x00, 0x50, 0x00, 0x00, 108 0x00, 0x00, 0x00, 0x00, 0x00, 109 0x00, 0x00, 0x00, 0x00]) 110 nth, ndp, ndp_entries, payload = ntb.parse_ntb(ntb_frame) 111 verify_payload = [array.array('B', [0x45, 0x00, 0x00, 0x46, 0x00, 0x00, 112 0x00, 0x00, 0x00, 0x01, 0xBC, 0xB4, 113 0x7F, 0x00, 0x00, 0x01, 0x7F, 0x00, 114 0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 115 0x00, 0x00, 0x00, 0x01, 0x61, 0x62, 116 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 117 0x69, 0x6A, 0x6B, 0x6C, 0x6D, 0x6E, 118 0x6F, 0x70, 0x71, 0x72, 0x73, 0x74, 119 0x75, 0x76, 0x77, 0x61, 0x62, 0x63, 120 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 121 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 122 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 123 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 124 0x00, 0x00])] 125 # Verify the fields of the headers and payload 126 self.assertEqual(nth.signature, mbim_data_transfer.NTH_SIGNATURE_32) 127 self.assertEqual(nth.header_length, 16) 128 self.assertEqual(nth.sequence_number, 1) 129 self.assertEqual(nth.block_length, 144) 130 self.assertEqual(nth.fp_index, 112) 131 self.assertEqual(ndp.signature, mbim_data_transfer.NDP_SIGNATURE_IPS_32) 132 self.assertEqual(ndp.length, 32) 133 self.assertEqual(ndp.next_ndp_index, 0) 134 self.assertEqual(ndp_entries[0].datagram_index, 32) 135 self.assertEqual(ndp_entries[0].datagram_length, 80) 136 self.assertEqual(ndp_entries[1].datagram_index, 0) 137 self.assertEqual(ndp_entries[1].datagram_length, 0) 138 self.assertEqual(payload, verify_payload) 139 140 141 def test_data_transfer_object_creation(self): 142 """ Verifies the Data transfer object creation. """ 143 device_context = TestMbimDeviceContext() 144 device_context.device = 1 145 device_context.max_out_data_transfer_size = 100 146 device_context.max_in_data_transfer_size = 100 147 device_context.out_data_transfer_divisor = 32 148 device_context.out_data_transfer_payload_remainder = 0 149 device_context.descriptor_cache = TestMbimDescriptorCache() 150 device_context.descriptor_cache.mbim_data_interface = ( 151 TestMbimDescriptorCache()) 152 device_context.descriptor_cache.bulk_in_endpoint = ( 153 TestMbimDescriptorCache()) 154 device_context.descriptor_cache.bulk_out_endpoint = ( 155 TestMbimDescriptorCache()) 156 device_context.descriptor_cache.mbim_data_interface.bInterfaceNumber = 0 157 device_context.descriptor_cache.bulk_in_endpoint.bEndpointAddress = 0 158 device_context.descriptor_cache.bulk_out_endpoint.bEndpointAddress = 0 159 data_transfer = mbim_data_transfer.MBIMDataTransfer(device_context) 160 161 162 def test_data_transfer_send(self): 163 """ Verifies the send_data_packets API in data transfer. """ 164 #TODO(rpius): Need to come up with a way to unittest the data transfer 165 166 167 def test_data_transfer_received(self): 168 """ Verifies the receive_data_packets API in data transfer. """ 169 #TODO(rpius): Need to come up with a way to unittest the data transfer 170 171 172 if __name__ == '__main__': 173 logging.basicConfig(level=logging.DEBUG) 174 unittest.main() 175
