1#!/usr/bin/python3.4 2# 3# Copyright 2017 - The Android Open Source Project 4# 5# Licensed under the Apache License, Version 2.0 (the "License"); 6# you may not use this file except in compliance with the License. 7# You may obtain a copy of 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, 13# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14# See the License for the specific language governing permissions and 15# limitations under the License. 16 17from acts import asserts 18from acts.base_test import BaseTestClass 19from acts.test_utils.wifi.rtt import rtt_test_utils as rutils 20from acts.test_utils.wifi.rtt.RttBaseTest import RttBaseTest 21 22 23class StressRangeApTest(RttBaseTest): 24 """Test class for stress testing of RTT ranging to Access Points""" 25 26 def __init__(self, controllers): 27 BaseTestClass.__init__(self, controllers) 28 29 ############################################################################# 30 31 def test_rtt_supporting_ap_only(self): 32 """Scan for APs and perform RTT only to those which support 802.11mc. 33 34 Stress test: repeat ranging to the same AP. Verify rate of success and 35 stability of results. 36 """ 37 dut = self.android_devices[0] 38 rtt_supporting_aps = rutils.scan_with_rtt_support_constraint(dut, True, 39 repeat=10) 40 dut.log.debug("RTT Supporting APs=%s", rtt_supporting_aps) 41 42 num_iter = self.stress_test_min_iteration_count 43 44 max_peers = dut.droid.wifiRttMaxPeersInRequest() 45 asserts.assert_true( 46 len(rtt_supporting_aps) > 0, 47 "Need at least one AP which supports 802.11mc!") 48 if len(rtt_supporting_aps) > max_peers: 49 rtt_supporting_aps = rtt_supporting_aps[0:max_peers] 50 51 events = rutils.run_ranging(dut, rtt_supporting_aps, num_iter, 0, 52 self.stress_test_target_run_time_sec) 53 stats = rutils.analyze_results(events, self.rtt_reference_distance_mm, 54 self.rtt_reference_distance_margin_mm, 55 self.rtt_min_expected_rssi_dbm, 56 self.lci_reference, self.lcr_reference, 57 summary_only=True) 58 dut.log.debug("Stats=%s", stats) 59 60 for bssid, stat in stats.items(): 61 asserts.assert_true(stat['num_no_results'] == 0, 62 "Missing (timed-out) results", extras=stats) 63 asserts.assert_false(stat['any_lci_mismatch'], 64 "LCI mismatch", extras=stats) 65 asserts.assert_false(stat['any_lcr_mismatch'], 66 "LCR mismatch", extras=stats) 67 asserts.assert_equal(stat['num_invalid_rssi'], 0, "Invalid RSSI", 68 extras=stats) 69 asserts.assert_true(stat['num_failures'] <= 70 self.rtt_max_failure_rate_two_sided_rtt_percentage 71 * stat['num_results'] / 100, 72 "Failure rate is too high", extras=stats) 73 asserts.assert_true(stat['num_range_out_of_margin'] <= 74 self.rtt_max_margin_exceeded_rate_two_sided_rtt_percentage 75 * stat['num_success_results'] / 100, 76 "Results exceeding error margin rate is too high", 77 extras=stats) 78 asserts.explicit_pass("RTT test done", extras=stats) 79 80