205 lines
7.0 KiB
Python
205 lines
7.0 KiB
Python
# osmo_ms_driver: Locationg Update Test
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# Create MS's and wait for the Location Update to succeed.
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#
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# Copyright (C) 2018 by Holger Hans Peter Freyther
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as
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# published by the Free Software Foundation, either version 3 of the
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# License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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from osmo_gsm_tester import log
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from .starter import OsmoVirtPhy, OsmoMobile
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from .test_support import imsi_ki_gen, Results
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from datetime import timedelta
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import time
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class LUResult(Results):
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def __init__(self, name):
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super().__init__(name)
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self._time_of_lu = None
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def set_lu_time(self, time):
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assert self._time_of_lu is None
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self._time_of_lu = time
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def has_lu_time(self):
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return self._time_of_lu is not None
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def lu_time(self):
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return self._time_of_lu or 0
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def lu_delay(self):
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return self.lu_time() - self.start_time()
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class MassUpdateLocationTest(log.Origin):
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"""
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A test to launch a configurable amount of MS and make them
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execute a Location Updating Procedure.
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Configure the number of MS to be tested and a function that
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decides how quickly to start them and a timeout.
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"""
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TEMPLATE_LUA = "osmo-mobile-lu.lua"
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TEMPLATE_CFG = "osmo-mobile.cfg"
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def __init__(self, name, number_of_ms, cdf_function, event_server, tmp_dir):
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super().__init__(log.C_RUN, name)
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self._number_of_ms = number_of_ms
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self._cdf = cdf_function
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self._cdf.set_target(number_of_ms)
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self._unstarted = []
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self._phys = []
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self._results = {}
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imsi_gen = imsi_ki_gen()
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self._outstanding = number_of_ms
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for i in range(0, number_of_ms):
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ms_name = "%.5d" % i
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phy = OsmoVirtPhy(ms_name, tmp_dir)
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self._phys.append(phy)
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launcher = OsmoMobile(ms_name, tmp_dir, self.TEMPLATE_LUA,
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self.TEMPLATE_CFG, imsi_gen,
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phy.phy_filename(),
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event_server.server_path())
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self._results[ms_name] = LUResult(ms_name)
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self._unstarted.append(launcher)
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self._event_server = event_server
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self._event_server.register(self.handle_msg)
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def pre_launch(self, loop):
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"""
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We need the virtphy's be ready when the lua script in the
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mobile comes and kicks-off the test. In lua we don't seem to
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be able to just stat/check if a file/socket exists so we need
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to do this from here.
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"""
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self.log("Pre-launching all virtphy's")
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for phy in self._phys:
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phy.start(loop)
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self.log("Checking if sockets are in the filesystem")
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for phy in self._phys:
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phy.verify_ready()
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def prepare(self, loop):
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self.log("Starting testcase")
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self.pre_launch(loop)
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self._start_time = time.clock_gettime(time.CLOCK_MONOTONIC)
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self._end_time = self._start_time + \
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self._cdf.duration().total_seconds() + \
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timedelta(seconds=120).total_seconds()
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self._started = []
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self._too_slow = 0
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def step_once(self, loop, current_time):
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if len(self._unstarted) <= 0:
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return current_time, None
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step_size = self._cdf.step_size().total_seconds()
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# Start
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self._cdf.step_once()
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# Check for timeout
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# start pending MS
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while len(self._started) < self._cdf.current_scaled_value() and len(self._unstarted) > 0:
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ms = self._unstarted.pop(0)
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ms.start(loop)
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launch_time = time.clock_gettime(time.CLOCK_MONOTONIC)
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self._results[ms.name_number()].set_launch_time(launch_time)
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self._started.append(ms)
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now_time = time.clock_gettime(time.CLOCK_MONOTONIC)
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sleep_time = (current_time + step_size) - now_time
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if sleep_time <= 0:
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self.log("Starting too slowly. Moving on",
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target=(current_time + step_size), now=now_time, sleep=sleep_time)
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self._too_slow += 1
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sleep_time = 0
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if len(self._unstarted) == 0:
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end_time = time.clock_gettime(time.CLOCK_MONOTONIC)
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self.log("All started...", too_slow=self._too_slow, duration=end_time - self._start_time)
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return current_time, None
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return current_time + step_size, sleep_time
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def run_test(self, loop, test_duration):
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self.prepare(loop)
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to_complete_time = self._start_time + test_duration.total_seconds()
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tick_time = self._start_time
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while not self.all_completed():
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tick_time, sleep_time = self.step_once(loop, tick_time)
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now_time = time.clock_gettime(time.CLOCK_MONOTONIC)
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if sleep_time is None:
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sleep_time = to_complete_time - now_time
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if sleep_time < 0:
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break
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loop.schedule_timeout(sleep_time)
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loop.select()
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def stop_all(self):
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for launcher in self._started:
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launcher.kill()
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def handle_msg(self, _data, addr, time):
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import json
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data = json.loads(_data.decode())
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if data['type'] == 'register':
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ms = self._results[data['ms']]
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ms.set_start_time(time)
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launch_delay = ms.start_time() - ms.launch_time()
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self.log("MS start registered ", ms=ms, at=time, delay=launch_delay)
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elif data['type'] == 'event':
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if data['data']['lu_done'] == 1:
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ms = self._results[data['ms']]
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if not ms.has_lu_time():
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self._outstanding = self._outstanding - 1
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ms.set_lu_time(time)
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self.log("MS performed LU ", ms=ms, at=time, lu_delay=ms.lu_delay())
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else:
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print(time, data)
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raise Exception("Unknown event type..:" + _data.decode())
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def all_completed(self):
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return self._outstanding == 0
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def results_min_max(self, results):
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min_value = max_value = None
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for result in results:
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if min_value is None or result.lu_delay() < min_value:
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min_value = result.lu_delay()
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if max_value is None or result.lu_delay() > max_value:
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max_value = result.lu_delay()
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return min_value, max_value
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def print_stats(self):
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all_completed = self.all_completed()
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min_value, max_value = self.results_min_max(filter(lambda x: x.has_lu_time(), self._results.values()))
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self.log("Tests done", all_completed=all_completed,
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min=min_value, max=max_value)
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