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1#!/usr/bin/env python3
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"""
17Test script to test the integrity of LE scan results upon resetting the
18Bluetooth stack.
19"""
20
21import concurrent
22import os
23import time
24
25from queue import Empty
26from acts.test_decorators import test_tracker_info
27from acts_contrib.test_utils.bt.BluetoothBaseTest import BluetoothBaseTest
28from acts_contrib.test_utils.bt.bt_constants import ble_advertise_settings_modes
29from acts_contrib.test_utils.bt.bt_constants import ble_scan_settings_callback_types
30from acts_contrib.test_utils.bt.bt_constants import ble_scan_settings_modes
31from acts_contrib.test_utils.bt.bt_constants import adv_succ
32from acts_contrib.test_utils.bt.bt_constants import scan_result
33from acts_contrib.test_utils.bt.bt_test_utils import BtTestUtilsError
34from acts_contrib.test_utils.bt.bt_test_utils import generate_ble_advertise_objects
35from acts_contrib.test_utils.bt.bt_test_utils import generate_ble_scan_objects
36from acts_contrib.test_utils.bt.bt_test_utils import get_advanced_droid_list
37from acts_contrib.test_utils.bt.bt_test_utils import reset_bluetooth
38from acts_contrib.test_utils.bt.bt_test_utils import setup_n_advertisements
39from acts_contrib.test_utils.bt.bt_test_utils import take_btsnoop_logs
40from acts_contrib.test_utils.bt.bt_test_utils import teardown_n_advertisements
41from acts_contrib.test_utils.bt.bt_test_utils import scan_and_verify_n_advertisements
42
43
44class ConcurrentBleAdvertisementDiscoveryTest(BluetoothBaseTest):
45    default_timeout = 10
46    droid_list = []
47    max_advertisements = -1
48    advertise_callback_list = []
49
50    def setup_class(self):
51        super().setup_class()
52        self.scn_ad = self.android_devices[0]
53        self.adv_ad = self.android_devices[1]
54        self.droid_list = get_advanced_droid_list(self.android_devices)
55        self.max_advertisements = self.droid_list[1]['max_advertisements']
56
57    def setup_test(self):
58        super().setup_test()
59        self.log.info("Setting up advertisements")
60        reset_bluetooth(self.android_devices)
61        try:
62            self.advertise_callback_list = setup_n_advertisements(
63                self.adv_ad, self.max_advertisements)
64        except BtTestUtilsError:
65            return False
66        return True
67
68    def teardown_test(self):
69        super(BluetoothBaseTest, self).teardown_test()
70        self.log.info("Tearing down advertisements")
71        teardown_n_advertisements(self.adv_ad,
72                                  len(self.advertise_callback_list),
73                                  self.advertise_callback_list)
74        return True
75
76    @BluetoothBaseTest.bt_test_wrap
77    @test_tracker_info(uuid='e02d6ca6-4db3-4a1d-adaf-98db7c7c2c7a')
78    def test_max_advertisements_defaults(self):
79        """Test scan integrity after BT state is reset
80
81        This test is to verify that LE devices are found
82        successfully after the Bluetooth stack is
83        reset. This is repeated multiple times in order
84        to verify that LE devices are not lost in scanning
85        when the stack is brought back up.
86
87        Steps:
88        1. Pre-Condition: Max advertisements are active
89        2. With the DUT android device, scan for all advertisements
90        and verify that all expected advertisements are found.
91        3. Reset Bluetooth on DUT.
92        4. Repeat steps 2-3 for defined iterations
93
94        Expected Result:
95        All expected advertisements should be found on all iterations.
96
97        Returns:
98          Pass if True
99          Fail if False
100
101        TAGS: LE, Advertising, Concurrency, Scanning
102        Priority: 2
103        """
104        filter_list = self.scn_ad.droid.bleGenFilterList()
105        self.scn_ad.droid.bleBuildScanFilter(filter_list)
106        self.scn_ad.droid.bleSetScanSettingsCallbackType(
107            ble_scan_settings_callback_types['all_matches'])
108        self.scn_ad.droid.bleSetScanSettingsScanMode(ble_scan_settings_modes[
109            'low_latency'])
110        iterations = 20
111        for _ in range(iterations):
112            self.log.info("Verify all advertisements found")
113            try:
114                if not scan_and_verify_n_advertisements(
115                        self.scn_ad, self.max_advertisements):
116                    self.log.error("Failed to find all advertisements")
117                    return False
118            except BtTestUtilsError:
119                return False
120            if not reset_bluetooth([self.scn_ad]):
121                self.log.error("Failed to reset Bluetooth state")
122                return False
123        return True
124