334 lines
12 KiB
Python
334 lines
12 KiB
Python
# osmo_gsm_tester: context for individual test runs
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#
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# Copyright (C) 2016-2017 by sysmocom - s.f.m.c. GmbH
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#
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# Author: Neels Hofmeyr <neels@hofmeyr.de>
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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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# These will be initialized before each test run.
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# A test script can thus establish its context by doing:
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# from osmo_gsm_tester.testenv import *
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import sys
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from .core import process
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from .core import log as log_module
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from .core import process as process_module
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from .core import resource
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from .core.event_loop import MainLoop
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from .obj import nitb_osmo, hlr_osmo, mgcpgw_osmo, mgw_osmo, msc_osmo, bsc_osmo, stp_osmo, ggsn_osmo, sgsn_osmo, esme, osmocon, ms_driver, iperf3
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from .obj import run_node
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from .obj import epc
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from .obj import enb
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from .obj import bts
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from .obj import ms
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suite = None
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test = None
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resources = None
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log = None
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dbg = None
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err = None
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wait = None
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wait_no_raise = None
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sleep = None
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poll = None
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prompt = None
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Sms = None
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process = None
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class Timeout(Exception):
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pass
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class TestEnv(log_module.Origin):
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def __init__(self, suite_run, test):
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super().__init__(log_module.C_TST, test.name())
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self.suite_run = suite_run
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self._test = test
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self._processes = []
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self.test_import_modules_to_clean_up = []
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self.objects_to_clean_up = None
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MainLoop.register_poll_func(self.poll)
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def test(self):
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return self._test
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def suite(self):
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return self.suite_run
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def remember_to_stop(self, process, respawn=False):
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'''Ask suite to monitor and manage lifecycle of the Process object. If a
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process managed by suite finishes before cleanup time, the current test
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will be marked as FAIL and end immediatelly. If respwan=True, then suite
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will respawn() the process instead.'''
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self._processes.insert(0, (process, respawn))
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def stop_processes(self):
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if len(self._processes) == 0:
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return
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strategy = process_module.ParallelTerminationStrategy()
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while self._processes:
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proc, _ = self._processes.pop()
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strategy.add_process(proc)
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strategy.terminate_all()
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def stop_process(self, process):
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'Remove process from monitored list and stop it'
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for proc_respawn in self._processes:
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proc, respawn = proc_respawn
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if proc == process:
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self._processes.remove(proc_respawn)
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proc.terminate()
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def register_for_cleanup(self, *obj):
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assert all([hasattr(o, 'cleanup') for o in obj])
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self.objects_to_clean_up = self.objects_to_clean_up or []
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self.objects_to_clean_up.extend(obj)
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def objects_cleanup(self):
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while self.objects_to_clean_up:
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obj = self.objects_to_clean_up.pop()
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try:
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obj.cleanup()
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except Exception:
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log_module.log_exn()
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def test_import_modules_register_for_cleanup(self, mod):
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'''
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Tests are required to call this API for any module loaded from its own
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lib subdir, because they are loaded in the global namespace. Otherwise
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later tests importing modules with the same name will re-use an already
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loaded module.
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'''
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if mod not in self.test_import_modules_to_clean_up:
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self.dbg('registering module %r for cleanup' % mod)
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self.test_import_modules_to_clean_up.append(mod)
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def test_import_modules_cleanup(self):
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while self.test_import_modules_to_clean_up:
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mod = self.test_import_modules_to_clean_up.pop()
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try:
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self.dbg('Cleaning up module %r' % mod)
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del sys.modules[mod.__name__]
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del mod
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except Exception:
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log_module.log_exn()
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def poll(self):
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for proc, respawn in self._processes:
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if proc.terminated():
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if respawn == True:
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proc.respawn()
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else:
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proc.log_stdout_tail()
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proc.log_stderr_tail()
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log_module.ctx(proc)
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raise log_module.Error('Process ended prematurely: %s' % proc.name())
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def stop(self):
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# if sys.exit() called from signal handler (e.g. SIGINT), SystemExit
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# base exception is raised. Make sure to stop processes in this
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# finally section. Resources are automatically freed with 'atexit'.
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self.stop_processes()
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self.objects_cleanup()
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self.suite_run.reserved_resources.put_all()
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MainLoop.unregister_poll_func(self.poll)
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self.test_import_modules_cleanup()
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def prompt(self, *msgs, **msg_details):
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'ask for user interaction. Do not use in tests that should run automatically!'
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if msg_details:
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msgs = list(msgs)
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msgs.append('{%s}' %
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(', '.join(['%s=%r' % (k,v)
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for k,v in sorted(msg_details.items())])))
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msg = ' '.join(msgs) or 'Hit Enter to continue'
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self.log('prompt:', msg)
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sys.__stdout__.write('\n\n--- PROMPT ---\n')
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sys.__stdout__.write(msg)
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sys.__stdout__.write('\n')
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sys.__stdout__.flush()
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entered = util.input_polling('> ', MainLoop.poll)
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self.log('prompt entered:', repr(entered))
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return entered
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def get_reserved_resource(self, resource_class_str, specifics=None):
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return self.suite_run.get_reserved_resource(resource_class_str, specifics)
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def ip_address(self, specifics=None):
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return self.get_reserved_resource(resource.R_IP_ADDRESS, specifics)
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def nitb(self, ip_address=None):
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if ip_address is None:
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ip_address = self.ip_address()
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return nitb_osmo.OsmoNitb(self, ip_address)
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def hlr(self, ip_address=None):
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if ip_address is None:
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ip_address = self.ip_address()
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return hlr_osmo.OsmoHlr(self, ip_address)
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def ggsn(self, ip_address=None):
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if ip_address is None:
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ip_address = self.ip_address()
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return ggsn_osmo.OsmoGgsn(self, ip_address)
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def sgsn(self, hlr, ggsn, ip_address=None):
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if ip_address is None:
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ip_address = self.ip_address()
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return sgsn_osmo.OsmoSgsn(self, hlr, ggsn, ip_address)
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def mgcpgw(self, ip_address=None, bts_ip=None):
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if ip_address is None:
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ip_address = self.ip_address()
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return mgcpgw_osmo.OsmoMgcpgw(self, ip_address, bts_ip)
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def mgw(self, ip_address=None):
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if ip_address is None:
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ip_address = self.ip_address()
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return mgw_osmo.OsmoMgw(self, ip_address)
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def msc(self, hlr, mgcpgw, stp, ip_address=None):
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if ip_address is None:
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ip_address = self.ip_address()
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return msc_osmo.OsmoMsc(self, hlr, mgcpgw, stp, ip_address)
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def bsc(self, msc, mgw, stp, ip_address=None):
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if ip_address is None:
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ip_address = self.ip_address()
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return bsc_osmo.OsmoBsc(self, msc, mgw, stp, ip_address)
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def stp(self, ip_address=None):
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if ip_address is None:
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ip_address = self.ip_address()
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return stp_osmo.OsmoStp(self, ip_address)
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def ms_driver(self):
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ms = ms_driver.MsDriver(self)
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self.register_for_cleanup(ms)
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return ms
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def bts(self, specifics=None):
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bts_obj = bts.Bts.get_instance_by_type(self, self.get_reserved_resource(resource.R_BTS, specifics=specifics))
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bts_obj.set_lac(self.lac())
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bts_obj.set_rac(self.rac())
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bts_obj.set_cellid(self.cellid())
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bts_obj.set_bvci(self.bvci())
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self.register_for_cleanup(bts_obj)
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return bts_obj
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def modem(self, specifics=None):
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conf = self.get_reserved_resource(resource.R_MODEM, specifics=specifics)
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ms_obj = ms.MS.get_instance_by_type(self, conf)
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self.register_for_cleanup(ms_obj)
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return ms_obj
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def modems(self, count):
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l = []
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for i in range(count):
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l.append(self.modem())
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return l
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def all_resources(self, resource_func):
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"""Returns all yielded resource."""
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l = []
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while True:
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try:
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l.append(resource_func())
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except resource.NoResourceExn:
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return l
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def esme(self):
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esme_obj = esme.Esme(self.msisdn())
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self.register_for_cleanup(esme_obj)
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return esme_obj
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def run_node(self, specifics=None):
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return run_node.RunNode.from_conf(self.get_reserved_resource(resource.R_RUN_NODE, specifics=specifics))
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def enb(self, specifics=None):
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enb_obj = enb.eNodeB.get_instance_by_type(self, self.get_reserved_resource(resource.R_ENB, specifics=specifics))
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self.register_for_cleanup(enb_obj)
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return enb_obj
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def epc(self, run_node=None):
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if run_node is None:
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run_node = self.run_node()
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epc_obj = epc.EPC.get_instance_by_type(self, run_node)
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self.register_for_cleanup(epc_obj)
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return epc_obj
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def osmocon(self, specifics=None):
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conf = self.get_reserved_resource(resource.R_OSMOCON, specifics=specifics)
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osmocon_obj = osmocon.Osmocon(self, conf=conf)
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self.register_for_cleanup(osmocon_obj)
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return osmocon_obj
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def iperf3srv(self, ip_address=None):
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if ip_address is None:
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ip_address = self.ip_address()
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iperf3srv_obj = iperf3.IPerf3Server(self, ip_address)
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return iperf3srv_obj
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def msisdn(self):
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msisdn = self.suite_run.resource_pool().next_msisdn(self)
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self.log('using MSISDN', msisdn)
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return msisdn
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def lac(self):
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lac = self.suite_run.resource_pool().next_lac(self)
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self.log('using LAC', lac)
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return lac
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def rac(self):
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rac = self.suite_run.resource_pool().next_rac(self)
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self.log('using RAC', rac)
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return rac
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def cellid(self):
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cellid = self.suite_run.resource_pool().next_cellid(self)
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self.log('using CellId', cellid)
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return cellid
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def bvci(self):
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bvci = self.suite_run.resource_pool().next_bvci(self)
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self.log('using BVCI', bvci)
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return bvci
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def setup(suite_run, _test):
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from .core.event_loop import MainLoop
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from .obj.sms import Sms as Sms_class
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global suite, test, resources, log, dbg, err, wait, wait_no_raise, sleep, poll, prompt, Sms, process
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test = _test
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resources = suite_run.reserved_resources # TODO: remove this global, only used in selftest
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log = test.log
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dbg = test.dbg
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err = test.err
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wait = lambda *args, **kwargs: MainLoop.wait(suite_run, *args, **kwargs)
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wait_no_raise = lambda *args, **kwargs: MainLoop.wait_no_raise(suite_run, *args, **kwargs)
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sleep = lambda *args, **kwargs: MainLoop.sleep(suite_run, *args, **kwargs)
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poll = MainLoop.poll
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Sms = Sms_class
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process = process_module
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suite = TestEnv(suite_run, _test) # stored in "suite" for backward compatibility
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prompt = suite.prompt
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return suite
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# vim: expandtab tabstop=4 shiftwidth=4
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