230 lines
7.0 KiB
Python
230 lines
7.0 KiB
Python
"""
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Common reusable code for tests and tests for pybitmessage process.
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"""
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import os
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import signal
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import subprocess # nosec
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import sys
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import tempfile
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import time
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import unittest
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import psutil
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from .common import cleanup, put_signal_file, skip_python3
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skip_python3()
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class TestProcessProto(unittest.TestCase):
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"""Test case implementing common logic for external testing:
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it starts pybitmessage in setUpClass() and stops it in tearDownClass()
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"""
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_process_cmd = ['pybitmessage', '-d']
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_threads_count_min = 15
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_threads_count_max = 16
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_threads_names = [
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'PyBitmessage',
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'addressGenerato',
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'singleWorker',
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'SQL',
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'objectProcessor',
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'singleCleaner',
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'singleAPI',
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'Asyncore',
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'ReceiveQueue_0',
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'ReceiveQueue_1',
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'ReceiveQueue_2',
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'Announcer',
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'InvBroadcaster',
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'AddrBroadcaster',
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'Downloader',
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'Uploader'
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]
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_files = (
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'keys.dat', 'debug.log', 'messages.dat', 'knownnodes.dat',
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'.api_started', 'unittest.lock'
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)
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home = None
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@classmethod
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def setUpClass(cls):
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"""Setup environment and start pybitmessage"""
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cls.flag = False
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if not cls.home:
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cls.home = tempfile.gettempdir()
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cls._cleanup_files()
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os.environ['BITMESSAGE_HOME'] = cls.home
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put_signal_file(cls.home, 'unittest.lock')
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starttime = int(time.time()) - 0.5
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cls.process = psutil.Popen(
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cls._process_cmd, stderr=subprocess.STDOUT) # nosec
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pidfile = os.path.join(cls.home, 'singleton.lock')
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for _ in range(10):
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time.sleep(1)
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try:
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pstat = os.stat(pidfile)
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if starttime <= pstat.st_mtime and pstat.st_size > 0:
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break # the pidfile is suitable
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except OSError:
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continue
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try:
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pid = int(cls._get_readline('singleton.lock'))
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cls.process = psutil.Process(pid)
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time.sleep(5)
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except (psutil.NoSuchProcess, TypeError):
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cls.flag = True
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def setUp(self):
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if self.flag:
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self.fail("%s is not started ):" % self._process_cmd)
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@classmethod
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def _get_readline(cls, pfile):
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pfile = os.path.join(cls.home, pfile)
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try:
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with open(pfile, 'rb') as p:
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return p.readline().strip()
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except (OSError, IOError):
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pass
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@classmethod
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def _stop_process(cls, timeout=5):
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cls.process.send_signal(signal.SIGTERM)
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try:
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cls.process.wait(timeout)
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except psutil.TimeoutExpired:
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return False
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return True
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@classmethod
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def _kill_process(cls, timeout=5):
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try:
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cls.process.send_signal(signal.SIGKILL)
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cls.process.wait(timeout)
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# Windows or already dead
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except (AttributeError, psutil.NoSuchProcess):
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return True
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# except psutil.TimeoutExpired propagates, it means something is very
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# wrong
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return True
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@classmethod
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def _cleanup_files(cls):
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cleanup(cls.home, cls._files)
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@classmethod
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def tearDownClass(cls):
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"""Ensures that pybitmessage stopped and removes files"""
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try:
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if not cls._stop_process(10):
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processes = cls.process.children(recursive=True)
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processes.append(cls.process)
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for p in processes:
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try:
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p.kill()
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except psutil.NoSuchProcess:
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pass
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except psutil.NoSuchProcess:
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pass
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finally:
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cls._cleanup_files()
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def _test_threads(self):
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"""Test number and names of threads"""
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# pylint: disable=invalid-name
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self.longMessage = True
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try:
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# using ps for posix platforms
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# because of https://github.com/giampaolo/psutil/issues/613
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thread_names = subprocess.check_output([
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"ps", "-L", "-o", "comm=", "--pid",
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str(self.process.pid)
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]).split()
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except subprocess.CalledProcessError:
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thread_names = []
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except: # noqa:E722
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thread_names = []
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running_threads = len(thread_names)
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if 0 < running_threads < 30: # adequacy check
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extra_threads = []
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missing_threads = []
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for thread_name in thread_names:
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if thread_name not in self._threads_names:
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extra_threads.append(thread_name)
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for thread_name in self._threads_names:
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if thread_name not in thread_names:
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missing_threads.append(thread_name)
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msg = "Missing threads: {}, Extra threads: {}".format(
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",".join(missing_threads), ",".join(extra_threads))
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else:
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running_threads = self.process.num_threads()
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if sys.platform.startswith('win'):
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running_threads -= 1 # one extra thread on Windows!
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msg = "Unexpected running thread count"
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self.assertGreaterEqual(
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running_threads,
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self._threads_count_min,
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msg)
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self.assertLessEqual(
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running_threads,
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self._threads_count_max,
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msg)
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class TestProcessShutdown(TestProcessProto):
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"""Separate test case for SIGTERM"""
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def test_shutdown(self):
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"""Send to pybitmessage SIGTERM and ensure it stopped"""
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# longer wait time because it's not a benchmark
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self.assertTrue(
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self._stop_process(20),
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'%s has not stopped in 20 sec' % ' '.join(self._process_cmd))
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class TestProcess(TestProcessProto):
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"""A test case for pybitmessage process"""
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@unittest.skipIf(sys.platform[:5] != 'linux', 'probably needs prctl')
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def test_process_name(self):
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"""Check PyBitmessage process name"""
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self.assertEqual(self.process.name(), 'PyBitmessage')
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@unittest.skipIf(psutil.version_info < (4, 0), 'psutil is too old')
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def test_home(self):
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"""Ensure BITMESSAGE_HOME is used by process"""
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self.assertEqual(
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self.process.environ().get('BITMESSAGE_HOME'), self.home)
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@unittest.skipIf(
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os.getenv('WINEPREFIX'), "process.connections() doesn't work on wine")
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def test_listening(self):
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"""Check that pybitmessage listens on port 8444"""
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for c in self.process.connections():
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if c.status == 'LISTEN':
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self.assertEqual(c.laddr[1], 8444)
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break
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def test_files(self):
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"""Check existence of PyBitmessage files"""
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for pfile in self._files:
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if pfile.startswith('.'):
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continue
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self.assertIsNot(
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self._get_readline(pfile), None,
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'Failed to read file %s' % pfile
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)
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def test_threads(self):
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"""Testing PyBitmessage threads"""
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self._test_threads()
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