1 #/usr/bin/env python3.4 2 # 3 # Copyright (C) 2016 The Android Open Source Project 4 # 5 # Licensed under the Apache License, Version 2.0 (the "License"); you may not 6 # use this file except in compliance with the License. You may obtain a copy of 7 # the License at 8 # 9 # http://www.apache.org/licenses/LICENSE-2.0 10 # 11 # Unless required by applicable law or agreed to in writing, software 12 # distributed under the License is distributed on an "AS IS" BASIS, WITHOUT 13 # WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the 14 # License for the specific language governing permissions and limitations under 15 # the License. 16 """ 17 This test script for GATT longevity tests. 18 """ 19 20 from acts.test_decorators import test_tracker_info 21 from acts.test_utils.bt.BluetoothBaseTest import BluetoothBaseTest 22 from acts.test_utils.bt.GattConnectedBaseTest import GattConnectedBaseTest 23 from acts.test_utils.bt.bt_constants import gatt_characteristic 24 from acts.test_utils.bt.bt_constants import gatt_descriptor 25 from acts.test_utils.bt.bt_constants import gatt_event 26 from acts.test_utils.bt.bt_constants import gatt_cb_strings 27 from acts.test_utils.bt.bt_constants import gatt_connection_priority 28 from acts.test_utils.bt.bt_constants import gatt_characteristic_attr_length 29 from acts.test_utils.bt.GattEnum import MtuSize 30 from acts.test_utils.bt.bt_gatt_utils import setup_gatt_mtu 31 32 33 class GattLongevityTest(GattConnectedBaseTest): 34 longevity_iterations = 1100000 35 36 @test_tracker_info(uuid='d7d378f4-89d8-4330-bb80-0054b92020bb') 37 def test_write_characteristic_no_resp_longevity(self): 38 """Longevity test write characteristic value 39 40 Longevity test to write characteristic value for 41 self.longevity_iteration times. This is to test the 42 integrity of written data and the robustness of central 43 and peripheral mode of the Android devices under test. 44 45 1. Central: write WRITABLE_CHAR_UUID characteristic with char_value 46 using write command. 47 2. Central: make sure write callback is called. 48 3. Peripheral: receive the written data. 49 4. Verify data written matches data received. 50 5. Repeat steps 1-4 self.longevity_iterations times. 51 52 Expected Result: 53 Verify that write command is properly delivered. 54 55 Returns: 56 Pass if True 57 Fail if False 58 59 TAGS: LE, GATT, Characteristic, Longevity 60 Priority: 0 61 """ 62 self.cen_ad.droid.gattClientRequestConnectionPriority( 63 self.bluetooth_gatt, gatt_connection_priority['high']) 64 65 self.cen_ad.droid.gattClientCharacteristicSetWriteType( 66 self.bluetooth_gatt, self.discovered_services_index, 67 self.test_service_index, self.WRITABLE_CHAR_UUID, 68 gatt_characteristic['write_type_no_response']) 69 70 for i in range(self.longevity_iterations): 71 self.log.debug("Iteration {} started.".format(i + 1)) 72 char_value = [] 73 for j in range(i, i + self.mtu - 3): 74 char_value.append(j % 256) 75 76 self.cen_ad.droid.gattClientCharacteristicSetValue( 77 self.bluetooth_gatt, self.discovered_services_index, 78 self.test_service_index, self.WRITABLE_CHAR_UUID, char_value) 79 80 self.cen_ad.droid.gattClientWriteCharacteristic( 81 self.bluetooth_gatt, self.discovered_services_index, 82 self.test_service_index, self.WRITABLE_CHAR_UUID) 83 84 # client shall not wait for server, get complete event right away 85 event = self._client_wait(gatt_event['char_write']) 86 if event["data"]["Status"] != 0: 87 self.log.error("Write status should be 0") 88 return False 89 90 event = self._server_wait(gatt_event['char_write_req']) 91 92 self.log.info("{} event found: {}".format(gatt_cb_strings[ 93 'char_write_req'].format(self.gatt_server_callback), event[ 94 'data']['value'])) 95 request_id = event['data']['requestId'] 96 found_value = event['data']['value'] 97 if found_value != char_value: 98 self.log.info("Values didn't match. Found: {}, " 99 "Expected: {}".format(found_value, char_value)) 100 return False 101 102 return True 103
