721872e051
There was an issue when tests crashed and weren't properly retried. Change-Id: Id5ef828ecc9a8dc0f08c50183721db06e162e6c3 Signed-off-by: juraj.linkes <juraj.linkes@pantheon.tech>
695 lines
27 KiB
Python
695 lines
27 KiB
Python
#!/usr/bin/env python
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import sys
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import shutil
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import os
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import select
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import unittest
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import argparse
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import time
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import threading
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import signal
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import psutil
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from multiprocessing import Process, Pipe, cpu_count
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from multiprocessing.queues import Queue
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from multiprocessing.managers import BaseManager
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from framework import VppTestRunner, running_extended_tests, VppTestCase, \
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get_testcase_doc_name, get_test_description
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from debug import spawn_gdb
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from log import get_parallel_logger, double_line_delim, RED, YELLOW, GREEN, \
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colorize
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from discover_tests import discover_tests
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from subprocess import check_output, CalledProcessError
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from util import check_core_path
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# timeout which controls how long the child has to finish after seeing
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# a core dump in test temporary directory. If this is exceeded, parent assumes
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# that child process is stuck (e.g. waiting for shm mutex, which will never
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# get unlocked) and kill the child
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core_timeout = 3
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min_req_shm = 536870912 # min 512MB shm required
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# 128MB per extra process
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shm_per_process = 134217728
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class StreamQueue(Queue):
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def write(self, msg):
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self.put(msg)
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def flush(self):
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sys.__stdout__.flush()
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sys.__stderr__.flush()
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def fileno(self):
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return self._writer.fileno()
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class StreamQueueManager(BaseManager):
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pass
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StreamQueueManager.register('Queue', StreamQueue)
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def test_runner_wrapper(suite, keep_alive_pipe, result_pipe, stdouterr_queue,
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partial_result_queue, logger):
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sys.stdout = stdouterr_queue
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sys.stderr = stdouterr_queue
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VppTestCase.logger = logger
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result = VppTestRunner(keep_alive_pipe=keep_alive_pipe,
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descriptions=descriptions,
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verbosity=verbose,
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results_pipe=partial_result_queue,
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failfast=failfast).run(suite)
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result_pipe.send(result)
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result_pipe.close()
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keep_alive_pipe.close()
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class TestCaseWrapper(object):
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def __init__(self, testcase_suite, manager):
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self.keep_alive_parent_end, self.keep_alive_child_end = Pipe(
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duplex=False)
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self.result_parent_end, self.result_child_end = Pipe(duplex=False)
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self.partial_result_parent_end, self.partial_result_child_end = Pipe(
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duplex=False)
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self.testcase_suite = testcase_suite
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self.stdouterr_queue = manager.Queue()
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self.logger = get_parallel_logger(self.stdouterr_queue)
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self.child = Process(target=test_runner_wrapper,
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args=(testcase_suite, self.keep_alive_child_end,
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self.result_child_end, self.stdouterr_queue,
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self.partial_result_child_end, self.logger)
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)
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self.child.start()
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self.pid = self.child.pid
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self.last_test_temp_dir = None
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self.last_test_vpp_binary = None
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self.last_test = None
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self.result = None
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self.vpp_pid = None
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self.last_heard = time.time()
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self.core_detected_at = None
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self.failed_tests = []
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self.partial_result = None
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def close_pipes(self):
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self.keep_alive_child_end.close()
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self.result_child_end.close()
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self.partial_result_child_end.close()
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self.keep_alive_parent_end.close()
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self.result_parent_end.close()
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self.partial_result_parent_end.close()
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def stdouterr_reader_wrapper(unread_testcases, finished_unread_testcases,
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read_testcases):
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read_testcase = None
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while read_testcases.is_set() or len(unread_testcases) > 0:
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if not read_testcase:
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if len(finished_unread_testcases) > 0:
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read_testcase = finished_unread_testcases.pop()
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unread_testcases.remove(read_testcase)
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elif len(unread_testcases) > 0:
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read_testcase = unread_testcases.pop()
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if read_testcase:
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data = ''
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while data is not None:
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sys.stdout.write(data)
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data = read_testcase.stdouterr_queue.get()
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read_testcase.stdouterr_queue.close()
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finished_unread_testcases.discard(read_testcase)
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read_testcase = None
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def run_forked(testcase_suites):
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wrapped_testcase_suites = set()
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# suites are unhashable, need to use list
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results = []
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debug_core = os.getenv("DEBUG", "").lower() == "core"
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unread_testcases = set()
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finished_unread_testcases = set()
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manager = StreamQueueManager()
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manager.start()
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for i in range(concurrent_tests):
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if len(testcase_suites) > 0:
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wrapped_testcase_suite = TestCaseWrapper(testcase_suites.pop(0),
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manager)
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wrapped_testcase_suites.add(wrapped_testcase_suite)
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unread_testcases.add(wrapped_testcase_suite)
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# time.sleep(1)
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else:
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break
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read_from_testcases = threading.Event()
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read_from_testcases.set()
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stdouterr_thread = threading.Thread(target=stdouterr_reader_wrapper,
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args=(unread_testcases,
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finished_unread_testcases,
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read_from_testcases))
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stdouterr_thread.start()
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while len(wrapped_testcase_suites) > 0:
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finished_testcase_suites = set()
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for wrapped_testcase_suite in wrapped_testcase_suites:
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readable = select.select(
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[wrapped_testcase_suite.keep_alive_parent_end.fileno(),
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wrapped_testcase_suite.result_parent_end.fileno(),
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wrapped_testcase_suite.partial_result_parent_end.fileno()],
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[], [], 1)[0]
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if wrapped_testcase_suite.result_parent_end.fileno() in readable:
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results.append(
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(wrapped_testcase_suite.testcase_suite,
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wrapped_testcase_suite.result_parent_end.recv()))
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finished_testcase_suites.add(wrapped_testcase_suite)
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continue
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if wrapped_testcase_suite.partial_result_parent_end.fileno() \
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in readable:
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while wrapped_testcase_suite.partial_result_parent_end.poll():
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wrapped_testcase_suite.partial_result = \
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wrapped_testcase_suite.partial_result_parent_end.recv()
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wrapped_testcase_suite.last_heard = time.time()
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if wrapped_testcase_suite.keep_alive_parent_end.fileno() \
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in readable:
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while wrapped_testcase_suite.keep_alive_parent_end.poll():
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wrapped_testcase_suite.last_test, \
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wrapped_testcase_suite.last_test_vpp_binary, \
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wrapped_testcase_suite.last_test_temp_dir, \
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wrapped_testcase_suite.vpp_pid = \
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wrapped_testcase_suite.keep_alive_parent_end.recv()
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wrapped_testcase_suite.last_heard = time.time()
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fail = False
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if wrapped_testcase_suite.last_heard + test_timeout < time.time() \
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and not os.path.isfile(
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"%s/_core_handled" %
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wrapped_testcase_suite.last_test_temp_dir):
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fail = True
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wrapped_testcase_suite.logger.critical(
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"Timeout while waiting for child test "
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"runner process (last test running was "
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"`%s' in `%s')!" %
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(wrapped_testcase_suite.last_test,
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wrapped_testcase_suite.last_test_temp_dir))
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elif not wrapped_testcase_suite.child.is_alive():
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fail = True
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wrapped_testcase_suite.logger.critical(
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"Child python process unexpectedly died "
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"(last test running was `%s' in `%s')!" %
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(wrapped_testcase_suite.last_test,
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wrapped_testcase_suite.last_test_temp_dir))
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elif wrapped_testcase_suite.last_test_temp_dir and \
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wrapped_testcase_suite.last_test_vpp_binary:
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core_path = "%s/core" % \
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wrapped_testcase_suite.last_test_temp_dir
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if os.path.isfile(core_path):
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if wrapped_testcase_suite.core_detected_at is None:
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wrapped_testcase_suite.core_detected_at = time.time()
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elif wrapped_testcase_suite.core_detected_at + \
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core_timeout < time.time():
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if not os.path.isfile(
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"%s/_core_handled" %
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wrapped_testcase_suite.
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last_test_temp_dir):
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wrapped_testcase_suite.logger.critical(
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"Child python process unresponsive and core-"
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"file exists in test temporary directory!")
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fail = True
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if fail:
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failed_dir = os.getenv('VPP_TEST_FAILED_DIR')
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if wrapped_testcase_suite.last_test_temp_dir:
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lttd = os.path.basename(
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wrapped_testcase_suite.last_test_temp_dir)
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else:
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lttd = None
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link_path = '%s%s-FAILED' % (failed_dir, lttd)
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wrapped_testcase_suite.logger.error(
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"Creating a link to the failed test: %s -> %s" %
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(link_path, lttd))
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if not os.path.exists(link_path) \
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and wrapped_testcase_suite.last_test_temp_dir:
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os.symlink(wrapped_testcase_suite.last_test_temp_dir,
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link_path)
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api_post_mortem_path = "/tmp/api_post_mortem.%d" % \
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wrapped_testcase_suite.vpp_pid
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if os.path.isfile(api_post_mortem_path):
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wrapped_testcase_suite.logger.error(
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"Copying api_post_mortem.%d to %s" %
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(wrapped_testcase_suite.vpp_pid,
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wrapped_testcase_suite.last_test_temp_dir))
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shutil.copy2(api_post_mortem_path,
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wrapped_testcase_suite.last_test_temp_dir)
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if wrapped_testcase_suite.last_test_temp_dir and \
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wrapped_testcase_suite.last_test_vpp_binary:
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core_path = "%s/core" % \
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wrapped_testcase_suite.last_test_temp_dir
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if os.path.isfile(core_path):
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wrapped_testcase_suite.logger.error(
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"Core-file exists in test temporary directory: %s!"
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% core_path)
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check_core_path(wrapped_testcase_suite.logger,
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core_path)
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wrapped_testcase_suite.logger.debug(
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"Running `file %s':" % core_path)
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try:
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info = check_output(["file", core_path])
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wrapped_testcase_suite.logger.debug(info)
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except CalledProcessError as e:
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wrapped_testcase_suite.logger.error(
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"Could not run `file' utility on core-file, "
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"rc=%s" % e.returncode)
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pass
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if debug_core:
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spawn_gdb(
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wrapped_testcase_suite.last_test_vpp_binary,
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core_path, wrapped_testcase_suite.logger)
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wrapped_testcase_suite.child.terminate()
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try:
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# terminating the child process tends to leave orphan
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# VPP process around
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os.kill(wrapped_testcase_suite.vpp_pid, signal.SIGTERM)
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except OSError:
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# already dead
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pass
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results.append((wrapped_testcase_suite.testcase_suite,
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wrapped_testcase_suite.partial_result))
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finished_testcase_suites.add(wrapped_testcase_suite)
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for finished_testcase in finished_testcase_suites:
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finished_testcase.child.join()
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finished_testcase.close_pipes()
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wrapped_testcase_suites.remove(finished_testcase)
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finished_unread_testcases.add(finished_testcase)
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finished_testcase.stdouterr_queue.put(None)
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if len(testcase_suites) > 0:
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new_testcase = TestCaseWrapper(testcase_suites.pop(0), manager)
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wrapped_testcase_suites.add(new_testcase)
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unread_testcases.add(new_testcase)
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read_from_testcases.clear()
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stdouterr_thread.join(test_timeout)
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manager.shutdown()
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return results
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class SplitToSuitesCallback:
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def __init__(self, filter_callback):
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self.suites = {}
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self.suite_name = 'default'
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self.filter_callback = filter_callback
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self.filtered = unittest.TestSuite()
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def __call__(self, file_name, cls, method):
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test_method = cls(method)
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if self.filter_callback(file_name, cls.__name__, method):
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self.suite_name = file_name + cls.__name__
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if self.suite_name not in self.suites:
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self.suites[self.suite_name] = unittest.TestSuite()
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self.suites[self.suite_name].addTest(test_method)
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else:
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self.filtered.addTest(test_method)
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test_option = "TEST"
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def parse_test_option():
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f = os.getenv(test_option, None)
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filter_file_name = None
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filter_class_name = None
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filter_func_name = None
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if f:
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if '.' in f:
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parts = f.split('.')
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if len(parts) > 3:
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raise Exception("Unrecognized %s option: %s" %
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(test_option, f))
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if len(parts) > 2:
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if parts[2] not in ('*', ''):
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filter_func_name = parts[2]
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if parts[1] not in ('*', ''):
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filter_class_name = parts[1]
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if parts[0] not in ('*', ''):
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if parts[0].startswith('test_'):
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filter_file_name = parts[0]
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else:
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filter_file_name = 'test_%s' % parts[0]
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else:
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if f.startswith('test_'):
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filter_file_name = f
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else:
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filter_file_name = 'test_%s' % f
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if filter_file_name:
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filter_file_name = '%s.py' % filter_file_name
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return filter_file_name, filter_class_name, filter_func_name
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def filter_tests(tests, filter_cb):
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result = unittest.suite.TestSuite()
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for t in tests:
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if isinstance(t, unittest.suite.TestSuite):
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# this is a bunch of tests, recursively filter...
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x = filter_tests(t, filter_cb)
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if x.countTestCases() > 0:
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result.addTest(x)
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elif isinstance(t, unittest.TestCase):
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# this is a single test
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parts = t.id().split('.')
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# t.id() for common cases like this:
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# test_classifier.TestClassifier.test_acl_ip
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# apply filtering only if it is so
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if len(parts) == 3:
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if not filter_cb(parts[0], parts[1], parts[2]):
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continue
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result.addTest(t)
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else:
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# unexpected object, don't touch it
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result.addTest(t)
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return result
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class FilterByTestOption:
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def __init__(self, filter_file_name, filter_class_name, filter_func_name):
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self.filter_file_name = filter_file_name
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self.filter_class_name = filter_class_name
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self.filter_func_name = filter_func_name
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def __call__(self, file_name, class_name, func_name):
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if self.filter_file_name and file_name != self.filter_file_name:
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return False
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if self.filter_class_name and class_name != self.filter_class_name:
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return False
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if self.filter_func_name and func_name != self.filter_func_name:
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return False
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return True
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class FilterByClassList:
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def __init__(self, classes_with_filenames):
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self.classes_with_filenames = classes_with_filenames
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def __call__(self, file_name, class_name, func_name):
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return '.'.join([file_name, class_name]) in self.classes_with_filenames
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def suite_from_failed(suite, failed):
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failed = {x.rsplit('.', 1)[0] for x in failed}
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filter_cb = FilterByClassList(failed)
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suite = filter_tests(suite, filter_cb)
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return suite
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class NonPassedResults(dict):
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def __init__(self):
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super(NonPassedResults, self).__init__()
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self.all_testcases = 0
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self.results_per_suite = {}
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self.failures_id = 'failures'
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self.errors_id = 'errors'
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self.crashes_id = 'crashes'
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self.skipped_id = 'skipped'
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self.expectedFailures_id = 'expectedFailures'
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self.unexpectedSuccesses_id = 'unexpectedSuccesses'
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self.rerun = []
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self.passed = 0
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self[self.failures_id] = 0
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self[self.errors_id] = 0
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self[self.skipped_id] = 0
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self[self.expectedFailures_id] = 0
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self[self.unexpectedSuccesses_id] = 0
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def _add_result(self, test, result_id):
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if isinstance(test, VppTestCase):
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parts = test.id().split('.')
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if len(parts) == 3:
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tc_class = get_testcase_doc_name(test)
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if tc_class not in self.results_per_suite:
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# failed, errored, skipped, expectedly failed,
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# unexpectedly passed
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self.results_per_suite[tc_class] = \
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{self.failures_id: [],
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self.errors_id: [],
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self.skipped_id: [],
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self.expectedFailures_id: [],
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self.unexpectedSuccesses_id: []}
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self.results_per_suite[tc_class][result_id].append(test)
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return True
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return False
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def add_results(self, testcases, testcase_result_id):
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for failed_testcase, _ in testcases:
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if self._add_result(failed_testcase, testcase_result_id):
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self[testcase_result_id] += 1
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def add_result(self, testcase_suite, result):
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retval = 0
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if result:
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self.all_testcases += result.testsRun
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self.passed += len(result.passed)
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if not len(result.passed) + len(result.skipped) \
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== testcase_suite.countTestCases():
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retval = 1
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self.add_results(result.failures, self.failures_id)
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self.add_results(result.errors, self.errors_id)
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self.add_results(result.skipped, self.skipped_id)
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self.add_results(result.expectedFailures,
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self.expectedFailures_id)
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self.add_results(result.unexpectedSuccesses,
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self.unexpectedSuccesses_id)
|
|
else:
|
|
retval = -1
|
|
|
|
if retval != 0:
|
|
if concurrent_tests == 1:
|
|
if result:
|
|
rerun_ids = set([])
|
|
skipped = [x.id() for (x, _) in result.skipped]
|
|
for testcase in testcase_suite:
|
|
tc_id = testcase.id()
|
|
if tc_id not in result.passed and \
|
|
tc_id not in skipped:
|
|
rerun_ids.add(tc_id)
|
|
if len(rerun_ids) > 0:
|
|
self.rerun.append(suite_from_failed(testcase_suite,
|
|
rerun_ids))
|
|
else:
|
|
self.rerun.append(testcase_suite)
|
|
else:
|
|
self.rerun.append(testcase_suite)
|
|
|
|
return retval
|
|
|
|
def print_results(self):
|
|
print('')
|
|
print(double_line_delim)
|
|
print('TEST RESULTS:')
|
|
print(' Executed tests: {}'.format(self.all_testcases))
|
|
print(' Passed tests: {}'.format(
|
|
colorize(str(self.passed), GREEN)))
|
|
if self[self.failures_id] > 0:
|
|
print(' Failures: {}'.format(
|
|
colorize(str(self[self.failures_id]), RED)))
|
|
if self[self.errors_id] > 0:
|
|
print(' Errors: {}'.format(
|
|
colorize(str(self[self.errors_id]), RED)))
|
|
if self[self.skipped_id] > 0:
|
|
print(' Skipped tests: {}'.format(
|
|
colorize(str(self[self.skipped_id]), YELLOW)))
|
|
if self[self.expectedFailures_id] > 0:
|
|
print(' Expected failures: {}'.format(
|
|
colorize(str(self[self.expectedFailures_id]), GREEN)))
|
|
if self[self.unexpectedSuccesses_id] > 0:
|
|
print(' Unexpected successes: {}'.format(
|
|
colorize(str(self[self.unexpectedSuccesses_id]), YELLOW)))
|
|
|
|
if self.all_failed > 0:
|
|
print('FAILED TESTS:')
|
|
for testcase_class, suite_results in \
|
|
self.results_per_suite.items():
|
|
failed_testcases = suite_results[
|
|
self.failures_id]
|
|
errored_testcases = suite_results[
|
|
self.errors_id]
|
|
if len(failed_testcases) or len(errored_testcases):
|
|
print(' Testcase name: {}'.format(
|
|
colorize(testcase_class, RED)))
|
|
for failed_test in failed_testcases:
|
|
print(' FAILED: {}'.format(
|
|
colorize(get_test_description(
|
|
descriptions, failed_test), RED)))
|
|
for failed_test in errored_testcases:
|
|
print(' ERRORED: {}'.format(
|
|
colorize(get_test_description(
|
|
descriptions, failed_test), RED)))
|
|
|
|
print(double_line_delim)
|
|
print('')
|
|
|
|
@property
|
|
def all_failed(self):
|
|
return self[self.failures_id] + self[self.errors_id]
|
|
|
|
|
|
def parse_results(results):
|
|
"""
|
|
Prints the number of executed, passed, failed, errored, skipped,
|
|
expectedly failed and unexpectedly passed tests and details about
|
|
failed, errored, expectedly failed and unexpectedly passed tests.
|
|
|
|
Also returns any suites where any test failed.
|
|
|
|
:param results:
|
|
:return:
|
|
"""
|
|
|
|
results_per_suite = NonPassedResults()
|
|
crashed = False
|
|
failed = False
|
|
for testcase_suite, result in results:
|
|
result_code = results_per_suite.add_result(testcase_suite, result)
|
|
if result_code == 1:
|
|
failed = True
|
|
elif result_code == -1:
|
|
crashed = True
|
|
|
|
results_per_suite.print_results()
|
|
|
|
if crashed:
|
|
return_code = -1
|
|
elif failed:
|
|
return_code = 1
|
|
else:
|
|
return_code = 0
|
|
return return_code, results_per_suite.rerun
|
|
|
|
|
|
def parse_digit_env(env_var, default):
|
|
value = os.getenv(env_var, default)
|
|
if value != default:
|
|
if value.isdigit():
|
|
value = int(value)
|
|
else:
|
|
print('WARNING: unsupported value "%s" for env var "%s",'
|
|
'defaulting to %s' % (value, env_var, default))
|
|
value = default
|
|
return value
|
|
|
|
|
|
if __name__ == '__main__':
|
|
|
|
verbose = parse_digit_env("V", 0)
|
|
|
|
test_timeout = parse_digit_env("TIMEOUT", 600) # default = 10 minutes
|
|
|
|
retries = parse_digit_env("RETRIES", 0)
|
|
|
|
debug = os.getenv("DEBUG", "n").lower() in ["gdb", "gdbserver"]
|
|
|
|
step = os.getenv("STEP", "n").lower() in ("y", "yes", "1")
|
|
|
|
force_foreground = \
|
|
os.getenv("FORCE_FOREGROUND", "n").lower() in ("y", "yes", "1")
|
|
|
|
run_interactive = debug or step or force_foreground
|
|
|
|
test_jobs = os.getenv("TEST_JOBS", "1").lower() # default = 1 process
|
|
if test_jobs == 'auto':
|
|
if run_interactive:
|
|
concurrent_tests = 1
|
|
print('Interactive mode required, running on one core')
|
|
else:
|
|
shm_free = psutil.disk_usage('/dev/shm').free
|
|
shm_max_processes = 1
|
|
if shm_free < min_req_shm:
|
|
raise Exception('Not enough free space in /dev/shm. Required '
|
|
'free space is at least %sM.'
|
|
% (min_req_shm >> 20))
|
|
else:
|
|
extra_shm = shm_free - min_req_shm
|
|
shm_max_processes += extra_shm / shm_per_process
|
|
concurrent_tests = max(cpu_count(), shm_max_processes)
|
|
print('Found enough resources to run tests with %s cores'
|
|
% concurrent_tests)
|
|
elif test_jobs.isdigit():
|
|
concurrent_tests = int(test_jobs)
|
|
else:
|
|
concurrent_tests = 1
|
|
|
|
if run_interactive and concurrent_tests > 1:
|
|
raise NotImplementedError(
|
|
'Running tests interactively (DEBUG, STEP or FORCE_FOREGROUND is '
|
|
'set) in parallel (TEST_JOBS is more than 1) is not '
|
|
'supported')
|
|
|
|
parser = argparse.ArgumentParser(description="VPP unit tests")
|
|
parser.add_argument("-f", "--failfast", action='store_true',
|
|
help="fast failure flag")
|
|
parser.add_argument("-d", "--dir", action='append', type=str,
|
|
help="directory containing test files "
|
|
"(may be specified multiple times)")
|
|
args = parser.parse_args()
|
|
failfast = args.failfast
|
|
descriptions = True
|
|
|
|
print("Running tests using custom test runner") # debug message
|
|
filter_file, filter_class, filter_func = parse_test_option()
|
|
|
|
print("Active filters: file=%s, class=%s, function=%s" % (
|
|
filter_file, filter_class, filter_func))
|
|
|
|
filter_cb = FilterByTestOption(filter_file, filter_class, filter_func)
|
|
|
|
cb = SplitToSuitesCallback(filter_cb)
|
|
for d in args.dir:
|
|
print("Adding tests from directory tree %s" % d)
|
|
discover_tests(d, cb)
|
|
|
|
# suites are not hashable, need to use list
|
|
suites = []
|
|
tests_amount = 0
|
|
for testcase_suite in cb.suites.values():
|
|
tests_amount += testcase_suite.countTestCases()
|
|
suites.append(testcase_suite)
|
|
|
|
if concurrent_tests == 1:
|
|
new_suite = unittest.TestSuite()
|
|
for suite in suites:
|
|
new_suite.addTests(suite)
|
|
|
|
suites = [new_suite]
|
|
|
|
print("%s out of %s tests match specified filters" % (
|
|
tests_amount, tests_amount + cb.filtered.countTestCases()))
|
|
|
|
if not running_extended_tests():
|
|
print("Not running extended tests (some tests will be skipped)")
|
|
|
|
attempts = retries + 1
|
|
if attempts > 1:
|
|
print("Perform %s attempts to pass the suite..." % attempts)
|
|
|
|
if run_interactive:
|
|
# don't fork if requiring interactive terminal
|
|
sys.exit(not VppTestRunner(
|
|
verbosity=verbose, failfast=failfast)
|
|
.run(suites[0]).wasSuccessful())
|
|
else:
|
|
exit_code = 0
|
|
while len(suites) > 0 and attempts > 0:
|
|
tests_amount = sum([x.countTestCases() for x in suites])
|
|
results = run_forked(suites)
|
|
exit_code, suites = parse_results(results)
|
|
attempts -= 1
|
|
if exit_code == 0:
|
|
print('Test run was successful')
|
|
else:
|
|
print('%s attempt(s) left.' % attempts)
|
|
sys.exit(exit_code)
|