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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"""
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_utils.bt.BluetoothBaseTest import BluetoothBaseTest
27from acts.test_utils.bt.BleEnum import AdvertiseSettingsAdvertiseMode
28from acts.test_utils.bt.BleEnum import ScanSettingsCallbackType
29from acts.test_utils.bt.BleEnum import ScanSettingsScanMode
30from acts.test_utils.bt.bt_test_utils import BtTestUtilsError
31from acts.test_utils.bt.bt_test_utils import adv_succ
32from acts.test_utils.bt.bt_test_utils import generate_ble_advertise_objects
33from acts.test_utils.bt.bt_test_utils import generate_ble_scan_objects
34from acts.test_utils.bt.bt_test_utils import get_advanced_droid_list
35from acts.test_utils.bt.bt_test_utils import reset_bluetooth
36from acts.test_utils.bt.bt_test_utils import scan_result
37from acts.test_utils.bt.bt_test_utils import setup_n_advertisements
38from acts.test_utils.bt.bt_test_utils import take_btsnoop_logs
39from acts.test_utils.bt.bt_test_utils import teardown_n_advertisements
40from acts.test_utils.bt.bt_test_utils import scan_and_verify_n_advertisements
41
42
43class ConcurrentBleAdvertisementDiscoveryTest(BluetoothBaseTest):
44    default_timeout = 10
45    max_advertisements = -1
46    advertise_callback_list = []
47
48    def __init__(self, controllers):
49        BluetoothBaseTest.__init__(self, controllers)
50        self.droid_list = get_advanced_droid_list(self.android_devices)
51        self.scn_ad = self.android_devices[0]
52        self.adv_ad = self.android_devices[1]
53        self.max_advertisements = self.droid_list[1]['max_advertisements']
54
55    def setup_test(self):
56        return reset_bluetooth(self.android_devices)
57
58    def setup_test(self):
59        super(BluetoothBaseTest, self).setup_test()
60        self.log.info("Setting up advertisements")
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    def test_max_advertisements_defaults(self):
78        """Test scan integrity after BT state is reset
79
80        This test is to verify that LE devices are found
81        successfully after the Bluetooth stack is
82        reset. This is repeated multiple times in order
83        to verify that LE devices are not lost in scanning
84        when the stack is brought back up.
85
86        Steps:
87        1. Pre-Condition: Max advertisements are active
88        2. With the DUT android device, scan for all advertisements
89        and verify that all expected advertisements are found.
90        3. Reset Bluetooth on DUT.
91        4. Repeat steps 2-3 for defined iterations
92
93        Expected Result:
94        All expected advertisements should be found on all iterations.
95
96        Returns:
97          Pass if True
98          Fail if False
99
100        TAGS: LE, Advertising, Concurrency, Scanning
101        Priority: 2
102        """
103        self.scn_ad.droid.bleBuildScanFilter(filter_list)
104        self.scn_ad.droid.bleSetScanSettingsCallbackType(
105            ScanSettingsCallbackType.CALLBACK_TYPE_ALL_MATCHES.value)
106        self.scn_ad.droid.bleSetScanSettingsScanMode(
107            ScanSettingsScanMode.SCAN_MODE_LOW_LATENCY.value)
108        iterations = 20
109        for _ in range(iterations):
110            self.log.info("Verify all advertisements found")
111            try:
112                if not scan_and_verify_n_advertisements(
113                        self.scn_ad, self.max_advertisements):
114                    self.log.error("Failed to find all advertisements")
115                    return False
116            except BtTestUtilsError:
117                return False
118            if not reset_bluetooth([self.scn_ad]):
119                self.log.error("Failed to reset Bluetooth state")
120                return False
121        return True
122