135 lines
3.9 KiB
Python
135 lines
3.9 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 tempfile
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import time
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import unittest
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import psutil
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def put_signal_file(path, filename):
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"""Creates file, presence of which is a signal about some event."""
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with open(os.path.join(path, filename), 'wb') as outfile:
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outfile.write(str(time.time()))
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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 = 15
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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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@classmethod
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def setUpClass(cls):
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"""Setup environment and start pybitmessage"""
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cls.home = os.environ['BITMESSAGE_HOME'] = tempfile.gettempdir()
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put_signal_file(cls.home, 'unittest.lock')
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subprocess.call(cls._process_cmd) # nosec
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time.sleep(5)
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cls.pid = int(cls._get_readline('singleton.lock'))
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cls.process = psutil.Process(cls.pid)
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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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return open(pfile, 'rb').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 _cleanup_files(cls):
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for pfile in cls._files:
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try:
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os.remove(os.path.join(cls.home, pfile))
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except OSError:
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pass
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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():
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print(open(os.path.join(cls.home, 'debug.log'), 'rb').read())
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cls.process.kill()
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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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# only count for now
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# because of https://github.com/giampaolo/psutil/issues/613
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# PyBitmessage
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# - addressGenerator
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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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self.assertEqual(
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len(self.process.threads()), self._threads_count)
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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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@classmethod
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def tearDownClass(cls):
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"""Special teardown because pybitmessage is already stopped"""
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cls._cleanup_files()
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class TestProcess(TestProcessProto):
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"""A test case for pybitmessage process"""
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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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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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