Migrate test_utils from acts to acts_contrib

This change will allow the ACTS framework to be packaged independently
of its test_utils. This facilitates the usage of ACTS within test suites
outside of tools/test/connectivity.

Re-submission of ag/13029169.
This reverts commit a4913cd4087bb09bf192de6ef819657aa6e082bd.

Reason for revert: Submit once references in acts_power are fixed.

Change-Id: I2d60f8ccaf936a80820a7b4387c23bbce1293dcf
diff --git a/acts_tests/acts_contrib/test_utils/coex/CoexPerformanceBaseTest.py b/acts_tests/acts_contrib/test_utils/coex/CoexPerformanceBaseTest.py
new file mode 100644
index 0000000..3180660
--- /dev/null
+++ b/acts_tests/acts_contrib/test_utils/coex/CoexPerformanceBaseTest.py
@@ -0,0 +1,508 @@
+#!/usr/bin/env python3
+#
+# Copyright (C) 2018 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License"); you may not
+# use this file except in compliance with the License. You may obtain a copy of
+# the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+# License for the specific language governing permissions and limitations under
+# the License.
+
+import json
+import os
+import time
+from collections import defaultdict
+
+from acts.metrics.loggers.blackbox import BlackboxMetricLogger
+from acts_contrib.test_utils.bt.bt_test_utils import disable_bluetooth
+from acts_contrib.test_utils.coex.audio_test_utils import AudioCaptureResult
+from acts_contrib.test_utils.coex.audio_test_utils import get_audio_capture_device
+from acts_contrib.test_utils.coex.CoexBaseTest import CoexBaseTest
+from acts_contrib.test_utils.coex.coex_test_utils import bokeh_chart_plot
+from acts_contrib.test_utils.coex.coex_test_utils import collect_bluetooth_manager_dumpsys_logs
+from acts_contrib.test_utils.coex.coex_test_utils import multithread_func
+from acts_contrib.test_utils.coex.coex_test_utils import wifi_connection_check
+from acts_contrib.test_utils.wifi.wifi_test_utils import wifi_connect
+from acts_contrib.test_utils.wifi.wifi_test_utils import wifi_test_device_init
+from acts.utils import get_current_epoch_time
+
+RSSI_POLL_RESULTS = 'Monitoring , Handle: 0x0003, POLL'
+RSSI_RESULTS = 'Monitoring , Handle: 0x0003, '
+
+
+def get_atten_range(start, stop, step):
+    """Function to derive attenuation range for tests.
+
+    Args:
+        start: Start attenuation value.
+        stop: Stop attenuation value.
+        step: Step attenuation value.
+    """
+    temp = start
+    while temp < stop:
+        yield temp
+        temp += step
+
+
+class CoexPerformanceBaseTest(CoexBaseTest):
+    """Base test class for performance tests.
+
+    Attributes:
+        rvr : Dict to save attenuation, throughput, fixed_attenuation.
+        a2dp_streaming : Used to denote a2dp test cases.
+    """
+
+    def __init__(self, controllers):
+        super().__init__(controllers)
+        self.a2dp_streaming = False
+        self.rvr = {}
+        self.bt_range_metric = BlackboxMetricLogger.for_test_case(
+            metric_name='bt_range')
+        self.wifi_max_atten_metric = BlackboxMetricLogger.for_test_case(
+            metric_name='wifi_max_atten')
+        self.wifi_min_atten_metric = BlackboxMetricLogger.for_test_case(
+            metric_name='wifi_min_atten')
+        self.wifi_range_metric = BlackboxMetricLogger.for_test_case(
+            metric_name='wifi_range_metric')
+
+    def setup_class(self):
+        req_params = ['test_params', 'Attenuator']
+        opt_params = ['audio_params']
+        self.unpack_userparams(req_params, opt_params)
+        if hasattr(self, 'Attenuator'):
+            self.num_atten = self.attenuators[0].instrument.num_atten
+        else:
+            self.log.error('Attenuator should be connected to run tests.')
+            return False
+        for i in range(self.num_atten):
+            self.attenuators[i].set_atten(0)
+        super().setup_class()
+        self.performance_files_list = []
+        if "performance_result_path" in self.user_params["test_params"]:
+            self.performance_files_list = [
+                os.path.join(self.test_params["performance_result_path"],
+                             files) for files in os.listdir(
+                                 self.test_params["performance_result_path"])
+            ]
+        self.bt_atten_range = list(get_atten_range(
+                            self.test_params["bt_atten_start"],
+                            self.test_params["bt_atten_stop"],
+                            self.test_params["bt_atten_step"]))
+        self.wifi_atten_range = list(get_atten_range(
+                            self.test_params["attenuation_start"],
+                            self.test_params["attenuation_stop"],
+                            self.test_params["attenuation_step"]))
+
+    def setup_test(self):
+        if ('a2dp_streaming' in self.current_test_name and
+                hasattr(self, 'audio_params')):
+            self.audio = get_audio_capture_device(self.sec_ad, self.audio_params)
+            self.a2dp_streaming = True
+        for i in range(self.num_atten):
+            self.attenuators[i].set_atten(0)
+        if not wifi_connection_check(self.pri_ad, self.network["SSID"]):
+            wifi_connect(self.pri_ad, self.network, num_of_tries=5)
+        super().setup_test()
+
+    def teardown_test(self):
+        self.performance_baseline_check()
+        for i in range(self.num_atten):
+            self.attenuators[i].set_atten(0)
+            current_atten = int(self.attenuators[i].get_atten())
+            self.log.debug(
+                "Setting attenuation to zero : Current atten {} : {}".format(
+                    self.attenuators[i], current_atten))
+        self.a2dp_streaming = False
+        if not disable_bluetooth(self.pri_ad.droid):
+            self.log.info("Failed to disable bluetooth")
+            return False
+        self.destroy_android_and_relay_object()
+        self.rvr = {}
+
+    def teardown_class(self):
+        self.reset_wifi_and_store_results()
+
+    def set_attenuation_and_run_iperf(self, called_func=None):
+        """Sets attenuation and runs iperf for Attenuation max value.
+
+        Args:
+            called_func : Function object to run.
+
+        Returns:
+            True if Pass
+            False if Fail
+        """
+        self.attenuators[self.num_atten - 1].set_atten(0)
+        self.rvr["bt_attenuation"] = []
+        self.rvr["test_name"] = self.current_test_name
+        self.rvr["bt_gap_analysis"] = {}
+        self.rvr["bt_range"] = []
+        status_flag = True
+        for bt_atten in self.bt_atten_range:
+            self.rvr[bt_atten] = {}
+            self.rvr[bt_atten]["fixed_attenuation"] = (
+                self.test_params["fixed_attenuation"][str(
+                    self.network["channel"])])
+            self.log.info('Setting bt attenuation to: {} dB'.format(bt_atten))
+            self.attenuators[self.num_atten - 1].set_atten(bt_atten)
+            for i in range(self.num_atten - 1):
+                self.attenuators[i].set_atten(0)
+            if not wifi_connection_check(self.pri_ad, self.network["SSID"]):
+                wifi_test_device_init(self.pri_ad)
+                wifi_connect(self.pri_ad, self.network, num_of_tries=5)
+            adb_rssi_results = self.pri_ad.search_logcat(RSSI_RESULTS)
+            if adb_rssi_results:
+                self.log.debug(adb_rssi_results[-1])
+                self.log.info('Android device: {}'.format(
+                    (adb_rssi_results[-1]['log_message']).split(',')[5]))
+            (self.rvr[bt_atten]["throughput_received"],
+             self.rvr[bt_atten]["a2dp_packet_drop"],
+             status_flag) = self.rvr_throughput(bt_atten, called_func)
+            self.wifi_max_atten_metric.metric_value = max(self.rvr[bt_atten]
+                                                          ["attenuation"])
+            self.wifi_min_atten_metric.metric_value = min(self.rvr[bt_atten]
+                                                          ["attenuation"])
+
+            if self.rvr[bt_atten]["throughput_received"]:
+                for i, atten in enumerate(self.rvr[bt_atten]["attenuation"]):
+                    if self.rvr[bt_atten]["throughput_received"][i] < 1.0:
+                        self.wifi_range_metric.metric_value = (
+                            self.rvr[bt_atten]["attenuation"][i-1])
+                        break
+                else:
+                    self.wifi_range_metric.metric_value = max(
+                        self.rvr[bt_atten]["attenuation"])
+            else:
+                self.wifi_range_metric.metric_value = max(
+                    self.rvr[bt_atten]["attenuation"])
+            if self.a2dp_streaming:
+                if not any(x > 0 for x in self.a2dp_dropped_list):
+                    self.rvr[bt_atten]["a2dp_packet_drop"] = []
+        if not self.rvr["bt_range"]:
+            self.rvr["bt_range"].append(0)
+        return status_flag
+
+    def rvr_throughput(self, bt_atten, called_func=None):
+        """Sets attenuation and runs the function passed.
+
+        Args:
+            bt_atten: Bluetooth attenuation.
+            called_func: Functions object to run parallely.
+
+        Returns:
+            Throughput, a2dp_drops and True/False.
+        """
+        self.iperf_received = []
+        self.iperf_variables.received = []
+        self.a2dp_dropped_list = []
+        self.rvr["bt_attenuation"].append(bt_atten)
+        self.rvr[bt_atten]["audio_artifacts"] = {}
+        self.rvr[bt_atten]["attenuation"] = []
+        self.rvr["bt_gap_analysis"][bt_atten] = {}
+        for atten in self.wifi_atten_range:
+            tag = '{}_{}'.format(bt_atten, atten)
+            self.rvr[bt_atten]["attenuation"].append(
+                atten + self.rvr[bt_atten]["fixed_attenuation"])
+            self.log.info('Setting wifi attenuation to: {} dB'.format(atten))
+            for i in range(self.num_atten - 1):
+                self.attenuators[i].set_atten(atten)
+            if not wifi_connection_check(self.pri_ad, self.network["SSID"]):
+                self.iperf_received.append(0)
+                return self.iperf_received, self.a2dp_dropped_list, False
+            time.sleep(5)  # Time for attenuation to set.
+            begin_time = get_current_epoch_time()
+            if self.a2dp_streaming:
+                self.audio.start()
+            if called_func:
+                if not multithread_func(self.log, called_func):
+                    self.iperf_received.append(float(str(
+                        self.iperf_variables.received[-1]).strip("Mb/s")))
+                    return self.iperf_received, self.a2dp_dropped_list, False
+            else:
+                self.run_iperf_and_get_result()
+
+            adb_rssi_poll_results = self.pri_ad.search_logcat(
+                RSSI_POLL_RESULTS, begin_time)
+            adb_rssi_results = self.pri_ad.search_logcat(
+                RSSI_RESULTS, begin_time)
+            if adb_rssi_results:
+                self.log.debug(adb_rssi_poll_results)
+                self.log.debug(adb_rssi_results[-1])
+                self.log.info('Android device: {}'.format((
+                    adb_rssi_results[-1]['log_message']).split(',')[5]))
+            if self.a2dp_streaming:
+                self.path = self.audio.stop()
+                analysis_path = AudioCaptureResult(
+                    self.path).audio_quality_analysis(self.audio_params)
+                with open(analysis_path) as f:
+                    self.rvr[bt_atten]["audio_artifacts"][atten] = f.readline()
+                content = json.loads(self.rvr[bt_atten]["audio_artifacts"][atten])
+                self.rvr["bt_gap_analysis"][bt_atten][atten] = {}
+                for idx, data in enumerate(content["quality_result"]):
+                    if data['artifacts']['delay_during_playback']:
+                        self.rvr["bt_gap_analysis"][bt_atten][atten][idx] = (
+                                data['artifacts']['delay_during_playback'])
+                        self.rvr["bt_range"].append(bt_atten)
+                    else:
+                        self.rvr["bt_gap_analysis"][bt_atten][atten][idx] = 0
+                file_path = collect_bluetooth_manager_dumpsys_logs(
+                    self.pri_ad, self.current_test_name)
+                self.a2dp_dropped_list.append(
+                    self.a2dp_dumpsys.parse(file_path))
+            self.iperf_received.append(
+                    float(str(self.iperf_variables.throughput[-1]).strip("Mb/s")))
+        for i in range(self.num_atten - 1):
+            self.attenuators[i].set_atten(0)
+        return self.iperf_received, self.a2dp_dropped_list, True
+
+    def performance_baseline_check(self):
+        """Checks for performance_result_path in config. If present, plots
+        comparision chart else plot chart for that particular test run.
+
+        Returns:
+            True if success, False otherwise.
+        """
+        if self.rvr:
+            with open(self.json_file, 'a') as results_file:
+                json.dump({str(k): v for k, v in self.rvr.items()},
+                          results_file, indent=4, sort_keys=True)
+            self.bt_range_metric.metric_value = self.rvr["bt_range"][0]
+            self.log.info('First occurrence of audio gap in bt '
+                          'range: {}'.format(self.bt_range_metric.metric_value))
+            self.log.info('Bluetooth min range: '
+                          '{} dB'.format(min(self.rvr['bt_attenuation'])))
+            self.log.info('Bluetooth max range: '
+                          '{} dB'.format(max(self.rvr['bt_attenuation'])))
+            self.plot_graph_for_attenuation()
+            if not self.performance_files_list:
+                self.log.warning('Performance file list is empty. Could not '
+                                 'calculate throughput limits')
+                return
+            self.throughput_pass_fail_check()
+        else:
+            self.log.error("Throughput dict empty!")
+            return False
+        return True
+
+    def plot_graph_for_attenuation(self):
+        """Plots graph and add as JSON formatted results for attenuation with
+        respect to its iperf values.
+        """
+        data_sets = defaultdict(dict)
+        legends = defaultdict(list)
+
+        x_label = 'WIFI Attenuation (dB)'
+        y_label = []
+
+        fig_property = {
+            "title": self.current_test_name,
+            "x_label": x_label,
+            "linewidth": 3,
+            "markersize": 10
+        }
+
+        for bt_atten in self.rvr["bt_attenuation"]:
+            y_label.insert(0, 'Throughput (Mbps)')
+            legends[bt_atten].insert(
+                0, str("BT Attenuation @ %sdB" % bt_atten))
+            data_sets[bt_atten]["attenuation"] = (
+                self.rvr[bt_atten]["attenuation"])
+            data_sets[bt_atten]["throughput_received"] = (
+                self.rvr[bt_atten]["throughput_received"])
+
+        if self.a2dp_streaming:
+            for bt_atten in self.bt_atten_range:
+                legends[bt_atten].insert(
+                    0, ('Packet drops(in %) @ {}dB'.format(bt_atten)))
+                data_sets[bt_atten]["a2dp_attenuation"] = (
+                    self.rvr[bt_atten]["attenuation"])
+                data_sets[bt_atten]["a2dp_packet_drops"] = (
+                    self.rvr[bt_atten]["a2dp_packet_drop"])
+            y_label.insert(0, "Packets Dropped")
+        fig_property["y_label"] = y_label
+        shaded_region = None
+
+        if "performance_result_path" in self.user_params["test_params"]:
+            shaded_region = self.comparision_results_calculation(data_sets, legends)
+
+        output_file_path = os.path.join(self.pri_ad.log_path,
+                                        self.current_test_name,
+                                        "attenuation_plot.html")
+        bokeh_chart_plot(list(self.rvr["bt_attenuation"]),
+                         data_sets,
+                         legends,
+                         fig_property,
+                         shaded_region=shaded_region,
+                         output_file_path=output_file_path)
+
+    def comparision_results_calculation(self, data_sets, legends):
+        """Compares rvr results with baseline values by calculating throughput
+        limits.
+
+        Args:
+            data_sets: including lists of x_data and lists of y_data.
+                ex: [[[x_data1], [x_data2]], [[y_data1],[y_data2]]]
+            legends: list of legend for each curve.
+
+        Returns:
+            None if test_file is not found, otherwise shaded_region
+            will be returned.
+        """
+        try:
+            attenuation_path = next(
+                file_name for file_name in self.performance_files_list
+                if self.current_test_name in file_name
+            )
+        except StopIteration:
+            self.log.warning("Test_file not found. "
+                             "No comparision values to calculate")
+            return
+        with open(attenuation_path, 'r') as throughput_file:
+            throughput_results = json.load(throughput_file)
+        for bt_atten in self.bt_atten_range:
+            throughput_received = []
+            user_attenuation = []
+            legends[bt_atten].insert(
+                0, ('Performance Results @ {}dB'.format(bt_atten)))
+            for att in self.rvr[bt_atten]["attenuation"]:
+                attenuation = att - self.rvr[bt_atten]["fixed_attenuation"]
+                throughput_received.append(throughput_results[str(bt_atten)]
+                    ["throughput_received"][attenuation])
+                user_attenuation.append(att)
+            data_sets[bt_atten][
+                "user_attenuation"] = user_attenuation
+            data_sets[bt_atten]["user_throughput"] = throughput_received
+        throughput_limits = self.get_throughput_limits(attenuation_path)
+        shaded_region = defaultdict(dict)
+        for bt_atten in self.bt_atten_range:
+            shaded_region[bt_atten] = {
+                "x_vector": throughput_limits[bt_atten]["attenuation"],
+                "lower_limit":
+                throughput_limits[bt_atten]["lower_limit"],
+                "upper_limit":
+                throughput_limits[bt_atten]["upper_limit"]
+            }
+        return shaded_region
+
+    def total_attenuation(self, performance_dict):
+        """Calculates attenuation with adding fixed attenuation.
+
+        Args:
+            performance_dict: dict containing attenuation and fixed attenuation.
+
+        Returns:
+            Total attenuation is returned.
+        """
+        if "fixed_attenuation" in self.test_params:
+            total_atten = [
+                att + performance_dict["fixed_attenuation"]
+                for att in performance_dict["attenuation"]
+            ]
+            return total_atten
+
+    def throughput_pass_fail_check(self):
+        """Check the test result and decide if it passed or failed
+        by comparing with throughput limits.The pass/fail tolerances are
+        provided in the config file.
+
+        Returns:
+            None if test_file is not found, True if successful,
+            False otherwise.
+        """
+        try:
+            performance_path = next(
+                file_name for file_name in self.performance_files_list
+                if self.current_test_name in file_name
+            )
+        except StopIteration:
+            self.log.warning("Test_file not found. Couldn't "
+                             "calculate throughput limits")
+            return
+        throughput_limits = self.get_throughput_limits(performance_path)
+
+        failure_count = 0
+        for bt_atten in self.bt_atten_range:
+            for idx, current_throughput in enumerate(
+                    self.rvr[bt_atten]["throughput_received"]):
+                current_att = self.rvr[bt_atten]["attenuation"][idx]
+                if (current_throughput <
+                        (throughput_limits[bt_atten]["lower_limit"][idx]) or
+                        current_throughput >
+                        (throughput_limits[bt_atten]["upper_limit"][idx])):
+                    failure_count = failure_count + 1
+                    self.log.info(
+                        "Throughput at {} dB attenuation is beyond limits. "
+                        "Throughput is {} Mbps. Expected within [{}, {}] Mbps.".
+                        format(
+                            current_att, current_throughput,
+                            throughput_limits[bt_atten]["lower_limit"][idx],
+                            throughput_limits[bt_atten]["upper_limit"][
+                                idx]))
+            if failure_count >= self.test_params["failure_count_tolerance"]:
+                self.log.error(
+                    "Test failed. Found {} points outside throughput limits.".
+                    format(failure_count))
+                return False
+            self.log.info(
+                "Test passed. Found {} points outside throughput limits.".
+                format(failure_count))
+            return True
+
+    def get_throughput_limits(self, performance_path):
+        """Compute throughput limits for current test.
+
+        Checks the RvR test result and compares to a throughput limits for
+        the same configuration. The pass/fail tolerances are provided in the
+        config file.
+
+        Args:
+            performance_path: path to baseline file used to generate limits
+
+        Returns:
+            throughput_limits: dict containing attenuation and throughput
+            limit data
+        """
+        with open(performance_path, 'r') as performance_file:
+            performance_results = json.load(performance_file)
+        throughput_limits = defaultdict(dict)
+        for bt_atten in self.bt_atten_range:
+            performance_attenuation = (self.total_attenuation(
+                performance_results[str(bt_atten)]))
+            attenuation = []
+            lower_limit = []
+            upper_limit = []
+            for idx, current_throughput in enumerate(
+                    self.rvr[bt_atten]["throughput_received"]):
+                current_att = self.rvr[bt_atten]["attenuation"][idx]
+                att_distances = [
+                    abs(current_att - performance_att)
+                    for performance_att in performance_attenuation
+                ]
+                sorted_distances = sorted(
+                    enumerate(att_distances), key=lambda x: x[1])
+                closest_indeces = [dist[0] for dist in sorted_distances[0:3]]
+                closest_throughputs = [
+                    performance_results[str(bt_atten)]["throughput_received"][
+                        index] for index in closest_indeces
+                ]
+                closest_throughputs.sort()
+                attenuation.append(current_att)
+                lower_limit.append(
+                    max(closest_throughputs[0] -
+                        max(self.test_params["abs_tolerance"],
+                            closest_throughputs[0] *
+                            self.test_params["pct_tolerance"] / 100), 0))
+                upper_limit.append(closest_throughputs[-1] + max(
+                    self.test_params["abs_tolerance"], closest_throughputs[-1] *
+                    self.test_params["pct_tolerance"] / 100))
+            throughput_limits[bt_atten]["attenuation"] = attenuation
+            throughput_limits[bt_atten]["lower_limit"] = lower_limit
+            throughput_limits[bt_atten]["upper_limit"] = upper_limit
+        return throughput_limits
+