-#!/usr/bin/env python
-
-import subprocess
+#!/usr/bin/env python3
+
+from __future__ import print_function
+import gc
+import sys
+import os
+import select
+import signal
import unittest
import tempfile
import time
-import resource
+import faulthandler
+import random
+import copy
+import psutil
+import platform
from collections import deque
-from threading import Thread
-from inspect import getdoc
-from hook import StepHook, PollHook
+from threading import Thread, Event
+from inspect import getdoc, isclass
+from traceback import format_exception
+from logging import FileHandler, DEBUG, Formatter
+
+import scapy.compat
+from scapy.packet import Raw
+import hook as hookmodule
from vpp_pg_interface import VppPGInterface
+from vpp_sub_interface import VppSubInterface
from vpp_lo_interface import VppLoInterface
+from vpp_bvi_interface import VppBviInterface
from vpp_papi_provider import VppPapiProvider
-from scapy.packet import Raw
-from log import *
+import vpp_papi
+from vpp_papi.vpp_stats import VPPStats
+from vpp_papi.vpp_transport_shmem import VppTransportShmemIOError
+from log import RED, GREEN, YELLOW, double_line_delim, single_line_delim, \
+ get_logger, colorize
+from vpp_object import VppObjectRegistry
+from util import ppp, is_core_present
+from scapy.layers.inet import IPerror, TCPerror, UDPerror, ICMPerror
+from scapy.layers.inet6 import ICMPv6DestUnreach, ICMPv6EchoRequest
+from scapy.layers.inet6 import ICMPv6EchoReply
+
+if os.name == 'posix' and sys.version_info[0] < 3:
+ # using subprocess32 is recommended by python official documentation
+ # @ https://docs.python.org/2/library/subprocess.html
+ import subprocess32 as subprocess
+else:
+ import subprocess
+
+# Python2/3 compatible
+try:
+ input = raw_input
+except NameError:
+ pass
+
+PASS = 0
+FAIL = 1
+ERROR = 2
+SKIP = 3
+TEST_RUN = 4
+
+
+class BoolEnvironmentVariable(object):
+
+ def __init__(self, env_var_name, default='n', true_values=None):
+ self.name = env_var_name
+ self.default = default
+ self.true_values = true_values if true_values is not None else \
+ ("y", "yes", "1")
+
+ def __bool__(self):
+ return os.getenv(self.name, self.default).lower() in self.true_values
+
+ if sys.version_info[0] == 2:
+ __nonzero__ = __bool__
+
+ def __repr__(self):
+ return 'BoolEnvironmentVariable(%r, default=%r, true_values=%r)' % \
+ (self.name, self.default, self.true_values)
+
+
+debug_framework = BoolEnvironmentVariable('TEST_DEBUG')
+if debug_framework:
+ import debug_internal
"""
Test framework module.
"""
+class VppDiedError(Exception):
+ """ exception for reporting that the subprocess has died."""
+
+ signals_by_value = {v: k for k, v in signal.__dict__.items() if
+ k.startswith('SIG') and not k.startswith('SIG_')}
+
+ def __init__(self, rv=None, testcase=None, method_name=None):
+ self.rv = rv
+ self.signal_name = None
+ self.testcase = testcase
+ self.method_name = method_name
+
+ try:
+ self.signal_name = VppDiedError.signals_by_value[-rv]
+ except (KeyError, TypeError):
+ pass
+
+ if testcase is None and method_name is None:
+ in_msg = ''
+ else:
+ in_msg = 'running %s.%s ' % (testcase, method_name)
+
+ msg = "VPP subprocess died %sunexpectedly with return code: %d%s." % (
+ in_msg,
+ self.rv,
+ ' [%s]' % (self.signal_name if
+ self.signal_name is not None else ''))
+ super(VppDiedError, self).__init__(msg)
+
+
class _PacketInfo(object):
"""Private class to create packet info object.
#: Store the index of the destination packet generator interface
#: of the packet.
dst = -1
+ #: Store expected ip version
+ ip = -1
+ #: Store expected upper protocol
+ proto = -1
#: Store the copy of the former packet.
data = None
return index and src and dst and data
-def pump_output(out, deque):
- for line in iter(out.readline, b''):
- deque.append(line)
+def pump_output(testclass):
+ """ pump output from vpp stdout/stderr to proper queues """
+ stdout_fragment = ""
+ stderr_fragment = ""
+ while not testclass.pump_thread_stop_flag.is_set():
+ readable = select.select([testclass.vpp.stdout.fileno(),
+ testclass.vpp.stderr.fileno(),
+ testclass.pump_thread_wakeup_pipe[0]],
+ [], [])[0]
+ if testclass.vpp.stdout.fileno() in readable:
+ read = os.read(testclass.vpp.stdout.fileno(), 102400)
+ if len(read) > 0:
+ split = read.decode('ascii',
+ errors='backslashreplace').splitlines(True)
+ if len(stdout_fragment) > 0:
+ split[0] = "%s%s" % (stdout_fragment, split[0])
+ if len(split) > 0 and split[-1].endswith("\n"):
+ limit = None
+ else:
+ limit = -1
+ stdout_fragment = split[-1]
+ testclass.vpp_stdout_deque.extend(split[:limit])
+ if not testclass.cache_vpp_output:
+ for line in split[:limit]:
+ testclass.logger.info(
+ "VPP STDOUT: %s" % line.rstrip("\n"))
+ if testclass.vpp.stderr.fileno() in readable:
+ read = os.read(testclass.vpp.stderr.fileno(), 102400)
+ if len(read) > 0:
+ split = read.decode('ascii',
+ errors='backslashreplace').splitlines(True)
+ if len(stderr_fragment) > 0:
+ split[0] = "%s%s" % (stderr_fragment, split[0])
+ if len(split) > 0 and split[-1].endswith("\n"):
+ limit = None
+ else:
+ limit = -1
+ stderr_fragment = split[-1]
+
+ testclass.vpp_stderr_deque.extend(split[:limit])
+ if not testclass.cache_vpp_output:
+ for line in split[:limit]:
+ testclass.logger.error(
+ "VPP STDERR: %s" % line.rstrip("\n"))
+ # ignoring the dummy pipe here intentionally - the
+ # flag will take care of properly terminating the loop
+
+
+def _is_skip_aarch64_set():
+ return BoolEnvironmentVariable('SKIP_AARCH64')
+
+
+is_skip_aarch64_set = _is_skip_aarch64_set()
+
+
+def _is_platform_aarch64():
+ return platform.machine() == 'aarch64'
+
+
+is_platform_aarch64 = _is_platform_aarch64()
+
+
+def _running_extended_tests():
+ return BoolEnvironmentVariable("EXTENDED_TESTS")
+
+
+running_extended_tests = _running_extended_tests()
+
+
+def _running_gcov_tests():
+ return BoolEnvironmentVariable("GCOV_TESTS")
+
+
+running_gcov_tests = _running_gcov_tests()
+
+
+def _running_on_centos():
+ os_id = os.getenv("OS_ID", "")
+ return True if "centos" in os_id.lower() else False
+
+
+running_on_centos = _running_on_centos()
+
+
+class KeepAliveReporter(object):
+ """
+ Singleton object which reports test start to parent process
+ """
+ _shared_state = {}
+
+ def __init__(self):
+ self.__dict__ = self._shared_state
+ self._pipe = None
+
+ @property
+ def pipe(self):
+ return self._pipe
+
+ @pipe.setter
+ def pipe(self, pipe):
+ if self._pipe is not None:
+ raise Exception("Internal error - pipe should only be set once.")
+ self._pipe = pipe
+
+ def send_keep_alive(self, test, desc=None):
+ """
+ Write current test tmpdir & desc to keep-alive pipe to signal liveness
+ """
+ if self.pipe is None:
+ # if not running forked..
+ return
+
+ if isclass(test):
+ desc = '%s (%s)' % (desc, unittest.util.strclass(test))
+ else:
+ desc = test.id()
+
+ self.pipe.send((desc, test.vpp_bin, test.tempdir, test.vpp.pid))
class VppTestCase(unittest.TestCase):
classes. It provides methods to create and run test case.
"""
+ extra_vpp_punt_config = []
+ extra_vpp_plugin_config = []
+ vapi_response_timeout = 5
+
@property
def packet_infos(self):
"""List of packet infos"""
return self._packet_infos
- @packet_infos.setter
- def packet_infos(self, value):
- self._packet_infos = value
+ @classmethod
+ def get_packet_count_for_if_idx(cls, dst_if_index):
+ """Get the number of packet info for specified destination if index"""
+ if dst_if_index in cls._packet_count_for_dst_if_idx:
+ return cls._packet_count_for_dst_if_idx[dst_if_index]
+ else:
+ return 0
@classmethod
def instance(cls):
@classmethod
def set_debug_flags(cls, d):
+ cls.gdbserver_port = 7777
cls.debug_core = False
cls.debug_gdb = False
cls.debug_gdbserver = False
+ cls.debug_all = False
if d is None:
return
dl = d.lower()
if dl == "core":
- if resource.getrlimit(resource.RLIMIT_CORE)[0] <= 0:
- # give a heads up if this is actually useless
- cls.logger.critical("WARNING: core size limit is set 0, core "
- "files will NOT be created")
cls.debug_core = True
- elif dl == "gdb":
+ elif dl == "gdb" or dl == "gdb-all":
cls.debug_gdb = True
- elif dl == "gdbserver":
+ elif dl == "gdbserver" or dl == "gdbserver-all":
cls.debug_gdbserver = True
else:
raise Exception("Unrecognized DEBUG option: '%s'" % d)
+ if dl == "gdb-all" or dl == "gdbserver-all":
+ cls.debug_all = True
+
+ @staticmethod
+ def get_least_used_cpu():
+ cpu_usage_list = [set(range(psutil.cpu_count()))]
+ vpp_processes = [p for p in psutil.process_iter(attrs=['pid', 'name'])
+ if 'vpp_main' == p.info['name']]
+ for vpp_process in vpp_processes:
+ for cpu_usage_set in cpu_usage_list:
+ try:
+ cpu_num = vpp_process.cpu_num()
+ if cpu_num in cpu_usage_set:
+ cpu_usage_set_index = cpu_usage_list.index(
+ cpu_usage_set)
+ if cpu_usage_set_index == len(cpu_usage_list) - 1:
+ cpu_usage_list.append({cpu_num})
+ else:
+ cpu_usage_list[cpu_usage_set_index + 1].add(
+ cpu_num)
+ cpu_usage_set.remove(cpu_num)
+ break
+ except psutil.NoSuchProcess:
+ pass
+
+ for cpu_usage_set in cpu_usage_list:
+ if len(cpu_usage_set) > 0:
+ min_usage_set = cpu_usage_set
+ break
+
+ return random.choice(tuple(min_usage_set))
@classmethod
def setUpConstants(cls):
""" Set-up the test case class based on environment variables """
- try:
- s = os.getenv("STEP")
- cls.step = True if s.lower() in ("y", "yes", "1") else False
- except:
- cls.step = False
- try:
- d = os.getenv("DEBUG")
- except:
- d = None
+ cls.step = BoolEnvironmentVariable('STEP')
+ d = os.getenv("DEBUG", None)
+ # inverted case to handle '' == True
+ c = os.getenv("CACHE_OUTPUT", "1")
+ cls.cache_vpp_output = False if c.lower() in ("n", "no", "0") else True
cls.set_debug_flags(d)
- cls.vpp_bin = os.getenv('VPP_TEST_BIN', "vpp")
- cls.plugin_path = os.getenv('VPP_TEST_PLUGIN_PATH')
+ cls.vpp_bin = os.getenv('VPP_BIN', "vpp")
+ cls.plugin_path = os.getenv('VPP_PLUGIN_PATH')
+ cls.test_plugin_path = os.getenv('VPP_TEST_PLUGIN_PATH')
+ cls.extern_plugin_path = os.getenv('EXTERN_PLUGINS')
+ plugin_path = None
+ if cls.plugin_path is not None:
+ if cls.extern_plugin_path is not None:
+ plugin_path = "%s:%s" % (
+ cls.plugin_path, cls.extern_plugin_path)
+ else:
+ plugin_path = cls.plugin_path
+ elif cls.extern_plugin_path is not None:
+ plugin_path = cls.extern_plugin_path
debug_cli = ""
if cls.step or cls.debug_gdb or cls.debug_gdbserver:
debug_cli = "cli-listen localhost:5002"
- cls.vpp_cmdline = [cls.vpp_bin, "unix", "{", "nodaemon", debug_cli, "}",
- "api-segment", "{", "prefix", cls.shm_prefix, "}"]
- if cls.plugin_path is not None:
- cls.vpp_cmdline.extend(["plugin_path", cls.plugin_path])
- cls.logger.info("vpp_cmdline: %s" % cls.vpp_cmdline)
+ coredump_size = None
+ size = os.getenv("COREDUMP_SIZE")
+ if size is not None:
+ coredump_size = "coredump-size %s" % size
+ if coredump_size is None:
+ coredump_size = "coredump-size unlimited"
+
+ cpu_core_number = cls.get_least_used_cpu()
+ if not hasattr(cls, "worker_config"):
+ cls.worker_config = ""
+
+ cls.vpp_cmdline = [cls.vpp_bin, "unix",
+ "{", "nodaemon", debug_cli, "full-coredump",
+ coredump_size, "runtime-dir", cls.tempdir, "}",
+ "api-trace", "{", "on", "}", "api-segment", "{",
+ "prefix", cls.shm_prefix, "}", "cpu", "{",
+ "main-core", str(cpu_core_number),
+ cls.worker_config, "}",
+ "physmem", "{", "max-size", "32m", "}",
+ "statseg", "{", "socket-name", cls.stats_sock, "}",
+ "socksvr", "{", "socket-name", cls.api_sock, "}",
+ "plugins",
+ "{", "plugin", "dpdk_plugin.so", "{", "disable",
+ "}", "plugin", "rdma_plugin.so", "{", "disable",
+ "}", "plugin", "unittest_plugin.so", "{", "enable",
+ "}"] + cls.extra_vpp_plugin_config + ["}", ]
+ if cls.extra_vpp_punt_config is not None:
+ cls.vpp_cmdline.extend(cls.extra_vpp_punt_config)
+ if plugin_path is not None:
+ cls.vpp_cmdline.extend(["plugin_path", plugin_path])
+ if cls.test_plugin_path is not None:
+ cls.vpp_cmdline.extend(["test_plugin_path", cls.test_plugin_path])
+
+ cls.logger.info("vpp_cmdline args: %s" % cls.vpp_cmdline)
+ cls.logger.info("vpp_cmdline: %s" % " ".join(cls.vpp_cmdline))
@classmethod
def wait_for_enter(cls):
cls.logger.debug("Spawned VPP with PID: %d" % cls.vpp.pid)
return
print(single_line_delim)
- print("You can debug the VPP using e.g.:")
+ print("You can debug VPP using:")
if cls.debug_gdbserver:
- print("gdb " + cls.vpp_bin + " -ex 'target remote localhost:7777'")
- print("Now is the time to attach a gdb by running the above "
- "command, set up breakpoints etc. and then resume VPP from "
+ print("sudo gdb " + cls.vpp_bin +
+ " -ex 'target remote localhost:{port}'"
+ .format(port=cls.gdbserver_port))
+ print("Now is the time to attach gdb by running the above "
+ "command, set up breakpoints etc., then resume VPP from "
"within gdb by issuing the 'continue' command")
+ cls.gdbserver_port += 1
elif cls.debug_gdb:
- print("gdb " + cls.vpp_bin + " -ex 'attach %s'" % cls.vpp.pid)
- print("Now is the time to attach a gdb by running the above "
- "command and set up breakpoints etc.")
+ print("sudo gdb " + cls.vpp_bin + " -ex 'attach %s'" % cls.vpp.pid)
+ print("Now is the time to attach gdb by running the above "
+ "command and set up breakpoints etc., then resume VPP from"
+ " within gdb by issuing the 'continue' command")
print(single_line_delim)
- raw_input("Press ENTER to continue running the testcase...")
+ input("Press ENTER to continue running the testcase...")
@classmethod
def run_vpp(cls):
raise Exception("gdbserver binary '%s' does not exist or is "
"not executable" % gdbserver)
- cmdline = [gdbserver, 'localhost:7777'] + cls.vpp_cmdline
+ cmdline = [gdbserver, 'localhost:{port}'
+ .format(port=cls.gdbserver_port)] + cls.vpp_cmdline
cls.logger.info("Gdbserver cmdline is %s", " ".join(cmdline))
try:
cls.vpp = subprocess.Popen(cmdline,
stdout=subprocess.PIPE,
- stderr=subprocess.PIPE,
- bufsize=1)
+ stderr=subprocess.PIPE)
+ except subprocess.CalledProcessError as e:
+ cls.logger.critical("Subprocess returned with non-0 return code: ("
+ "%s)", e.returncode)
+ raise
+ except OSError as e:
+ cls.logger.critical("Subprocess returned with OS error: "
+ "(%s) %s", e.errno, e.strerror)
+ raise
except Exception as e:
- cls.logger.critical("Couldn't start vpp: %s" % e)
+ cls.logger.exception("Subprocess returned unexpected from "
+ "%s:", cmdline)
raise
cls.wait_for_enter()
+ @classmethod
+ def wait_for_coredump(cls):
+ corefile = cls.tempdir + "/core"
+ if os.path.isfile(corefile):
+ cls.logger.error("Waiting for coredump to complete: %s", corefile)
+ curr_size = os.path.getsize(corefile)
+ deadline = time.time() + 60
+ ok = False
+ while time.time() < deadline:
+ cls.sleep(1)
+ size = curr_size
+ curr_size = os.path.getsize(corefile)
+ if size == curr_size:
+ ok = True
+ break
+ if not ok:
+ cls.logger.error("Timed out waiting for coredump to complete:"
+ " %s", corefile)
+ else:
+ cls.logger.error("Coredump complete: %s, size %d",
+ corefile, curr_size)
+
@classmethod
def setUpClass(cls):
"""
Perform class setup before running the testcase
Remove shared memory files, start vpp and connect the vpp-api
"""
- cls.logger = getLogger(cls.__name__)
+ super(VppTestCase, cls).setUpClass()
+ gc.collect() # run garbage collection first
+ cls.logger = get_logger(cls.__name__)
+ seed = os.environ["RND_SEED"]
+ random.seed(seed)
+ if hasattr(cls, 'parallel_handler'):
+ cls.logger.addHandler(cls.parallel_handler)
+ cls.logger.propagate = False
+
cls.tempdir = tempfile.mkdtemp(
- prefix='vpp-unittest-' + cls.__name__ + '-')
- cls.shm_prefix = cls.tempdir.split("/")[-1]
+ prefix='vpp-unittest-%s-' % cls.__name__)
+ cls.stats_sock = "%s/stats.sock" % cls.tempdir
+ cls.api_sock = "%s/api.sock" % cls.tempdir
+ cls.file_handler = FileHandler("%s/log.txt" % cls.tempdir)
+ cls.file_handler.setFormatter(
+ Formatter(fmt='%(asctime)s,%(msecs)03d %(message)s',
+ datefmt="%H:%M:%S"))
+ cls.file_handler.setLevel(DEBUG)
+ cls.logger.addHandler(cls.file_handler)
+ cls.logger.debug("--- setUpClass() for %s called ---" %
+ cls.__name__)
+ cls.shm_prefix = os.path.basename(cls.tempdir)
os.chdir(cls.tempdir)
cls.logger.info("Temporary dir is %s, shm prefix is %s",
cls.tempdir, cls.shm_prefix)
+ cls.logger.debug("Random seed is %s" % seed)
cls.setUpConstants()
+ cls.reset_packet_infos()
cls._captures = []
- cls._zombie_captures = []
- cls.packet_infos = {}
cls.verbose = 0
cls.vpp_dead = False
- print(double_line_delim)
- print(colorize(getdoc(cls).splitlines()[0], YELLOW))
- print(double_line_delim)
+ cls.registry = VppObjectRegistry()
+ cls.vpp_startup_failed = False
+ cls.reporter = KeepAliveReporter()
# need to catch exceptions here because if we raise, then the cleanup
# doesn't get called and we might end with a zombie vpp
try:
cls.run_vpp()
+ cls.reporter.send_keep_alive(cls, 'setUpClass')
+ VppTestResult.current_test_case_info = TestCaseInfo(
+ cls.logger, cls.tempdir, cls.vpp.pid, cls.vpp_bin)
cls.vpp_stdout_deque = deque()
- cls.vpp_stdout_reader_thread = Thread(target=pump_output, args=(
- cls.vpp.stdout, cls.vpp_stdout_deque))
- cls.vpp_stdout_reader_thread.start()
cls.vpp_stderr_deque = deque()
- cls.vpp_stderr_reader_thread = Thread(target=pump_output, args=(
- cls.vpp.stderr, cls.vpp_stderr_deque))
- cls.vpp_stderr_reader_thread.start()
- cls.vapi = VppPapiProvider(cls.shm_prefix, cls.shm_prefix, cls)
+ cls.pump_thread_stop_flag = Event()
+ cls.pump_thread_wakeup_pipe = os.pipe()
+ cls.pump_thread = Thread(target=pump_output, args=(cls,))
+ cls.pump_thread.daemon = True
+ cls.pump_thread.start()
+ if cls.debug_gdb or cls.debug_gdbserver:
+ cls.vapi_response_timeout = 0
+ cls.vapi = VppPapiProvider(cls.shm_prefix, cls.shm_prefix, cls,
+ cls.vapi_response_timeout)
if cls.step:
- hook = StepHook(cls)
+ hook = hookmodule.StepHook(cls)
else:
- hook = PollHook(cls)
+ hook = hookmodule.PollHook(cls)
cls.vapi.register_hook(hook)
- time.sleep(0.1)
- hook.poll_vpp()
+ cls.statistics = VPPStats(socketname=cls.stats_sock)
+ try:
+ hook.poll_vpp()
+ except VppDiedError:
+ cls.vpp_startup_failed = True
+ cls.logger.critical(
+ "VPP died shortly after startup, check the"
+ " output to standard error for possible cause")
+ raise
try:
cls.vapi.connect()
- except:
+ except vpp_papi.VPPIOError as e:
+ cls.logger.debug("Exception connecting to vapi: %s" % e)
+ cls.vapi.disconnect()
+
if cls.debug_gdbserver:
print(colorize("You're running VPP inside gdbserver but "
"VPP-API connection failed, did you forget "
"to 'continue' VPP from within gdb?", RED))
raise
- except:
- t, v, tb = sys.exc_info()
+ except Exception as e:
+ cls.logger.debug("Exception connecting to VPP: %s" % e)
+
+ cls.quit()
+ raise
+
+ @classmethod
+ def _debug_quit(cls):
+ if (cls.debug_gdbserver or cls.debug_gdb):
try:
- cls.quit()
- except:
+ cls.vpp.poll()
+
+ if cls.vpp.returncode is None:
+ print()
+ print(double_line_delim)
+ print("VPP or GDB server is still running")
+ print(single_line_delim)
+ input("When done debugging, press ENTER to kill the "
+ "process and finish running the testcase...")
+ except AttributeError:
pass
- raise t, v, tb
@classmethod
def quit(cls):
"""
Disconnect vpp-api, kill vpp and cleanup shared memory files
"""
- if (cls.debug_gdbserver or cls.debug_gdb) and hasattr(cls, 'vpp'):
- cls.vpp.poll()
- if cls.vpp.returncode is None:
- print(double_line_delim)
- print("VPP or GDB server is still running")
- print(single_line_delim)
- raw_input("When done debugging, press ENTER to kill the process"
- " and finish running the testcase...")
+ cls._debug_quit()
+
+ # first signal that we want to stop the pump thread, then wake it up
+ if hasattr(cls, 'pump_thread_stop_flag'):
+ cls.pump_thread_stop_flag.set()
+ if hasattr(cls, 'pump_thread_wakeup_pipe'):
+ os.write(cls.pump_thread_wakeup_pipe[1], b'ding dong wake up')
+ if hasattr(cls, 'pump_thread'):
+ cls.logger.debug("Waiting for pump thread to stop")
+ cls.pump_thread.join()
+ if hasattr(cls, 'vpp_stderr_reader_thread'):
+ cls.logger.debug("Waiting for stderr pump to stop")
+ cls.vpp_stderr_reader_thread.join()
if hasattr(cls, 'vpp'):
if hasattr(cls, 'vapi'):
+ cls.logger.debug(cls.vapi.vpp.get_stats())
+ cls.logger.debug("Disconnecting class vapi client on %s",
+ cls.__name__)
cls.vapi.disconnect()
+ cls.logger.debug("Deleting class vapi attribute on %s",
+ cls.__name__)
+ del cls.vapi
cls.vpp.poll()
if cls.vpp.returncode is None:
+ cls.wait_for_coredump()
+ cls.logger.debug("Sending TERM to vpp")
cls.vpp.terminate()
+ cls.logger.debug("Waiting for vpp to die")
+ cls.vpp.communicate()
+ cls.logger.debug("Deleting class vpp attribute on %s",
+ cls.__name__)
del cls.vpp
+ if cls.vpp_startup_failed:
+ stdout_log = cls.logger.info
+ stderr_log = cls.logger.critical
+ else:
+ stdout_log = cls.logger.info
+ stderr_log = cls.logger.info
+
if hasattr(cls, 'vpp_stdout_deque'):
- cls.logger.info(single_line_delim)
- cls.logger.info('VPP output to stdout while running %s:',
- cls.__name__)
- cls.logger.info(single_line_delim)
- f = open(cls.tempdir + '/vpp_stdout.txt', 'w')
+ stdout_log(single_line_delim)
+ stdout_log('VPP output to stdout while running %s:', cls.__name__)
+ stdout_log(single_line_delim)
vpp_output = "".join(cls.vpp_stdout_deque)
- f.write(vpp_output)
- cls.logger.info('\n%s', vpp_output)
- cls.logger.info(single_line_delim)
+ with open(cls.tempdir + '/vpp_stdout.txt', 'w') as f:
+ f.write(vpp_output)
+ stdout_log('\n%s', vpp_output)
+ stdout_log(single_line_delim)
if hasattr(cls, 'vpp_stderr_deque'):
- cls.logger.info(single_line_delim)
- cls.logger.info('VPP output to stderr while running %s:',
- cls.__name__)
- cls.logger.info(single_line_delim)
- f = open(cls.tempdir + '/vpp_stderr.txt', 'w')
+ stderr_log(single_line_delim)
+ stderr_log('VPP output to stderr while running %s:', cls.__name__)
+ stderr_log(single_line_delim)
vpp_output = "".join(cls.vpp_stderr_deque)
- f.write(vpp_output)
- cls.logger.info('\n%s', vpp_output)
- cls.logger.info(single_line_delim)
+ with open(cls.tempdir + '/vpp_stderr.txt', 'w') as f:
+ f.write(vpp_output)
+ stderr_log('\n%s', vpp_output)
+ stderr_log(single_line_delim)
@classmethod
def tearDownClass(cls):
""" Perform final cleanup after running all tests in this test-case """
+ cls.logger.debug("--- tearDownClass() for %s called ---" %
+ cls.__name__)
+ cls.reporter.send_keep_alive(cls, 'tearDownClass')
cls.quit()
+ cls.file_handler.close()
+ cls.reset_packet_infos()
+ if debug_framework:
+ debug_internal.on_tear_down_class(cls)
+
+ def show_commands_at_teardown(self):
+ """ Allow subclass specific teardown logging additions."""
+ self.logger.info("--- No test specific show commands provided. ---")
def tearDown(self):
""" Show various debug prints after each test """
- if not self.vpp_dead:
- self.logger.debug(self.vapi.cli("show trace"))
- self.logger.info(self.vapi.ppcli("show int"))
- self.logger.info(self.vapi.ppcli("show hardware"))
- self.logger.info(self.vapi.ppcli("show error"))
- self.logger.info(self.vapi.ppcli("show run"))
+ self.logger.debug("--- tearDown() for %s.%s(%s) called ---" %
+ (self.__class__.__name__, self._testMethodName,
+ self._testMethodDoc))
+
+ try:
+ if not self.vpp_dead:
+ self.logger.debug(self.vapi.cli("show trace max 1000"))
+ self.logger.info(self.vapi.ppcli("show interface"))
+ self.logger.info(self.vapi.ppcli("show hardware"))
+ self.logger.info(self.statistics.set_errors_str())
+ self.logger.info(self.vapi.ppcli("show run"))
+ self.logger.info(self.vapi.ppcli("show log"))
+ self.logger.info(self.vapi.ppcli("show bihash"))
+ self.logger.info("Logging testcase specific show commands.")
+ self.show_commands_at_teardown()
+ self.registry.remove_vpp_config(self.logger)
+ # Save/Dump VPP api trace log
+ m = self._testMethodName
+ api_trace = "vpp_api_trace.%s.%d.log" % (m, self.vpp.pid)
+ tmp_api_trace = "/tmp/%s" % api_trace
+ vpp_api_trace_log = "%s/%s" % (self.tempdir, api_trace)
+ self.logger.info(self.vapi.ppcli("api trace save %s" % api_trace))
+ self.logger.info("Moving %s to %s\n" % (tmp_api_trace,
+ vpp_api_trace_log))
+ os.rename(tmp_api_trace, vpp_api_trace_log)
+ self.logger.info(self.vapi.ppcli("api trace custom-dump %s" %
+ vpp_api_trace_log))
+ except VppTransportShmemIOError:
+ self.logger.debug("VppTransportShmemIOError: Vpp dead. "
+ "Cannot log show commands.")
+ self.vpp_dead = True
+ else:
+ self.registry.unregister_all(self.logger)
def setUp(self):
""" Clear trace before running each test"""
+ super(VppTestCase, self).setUp()
+ self.reporter.send_keep_alive(self)
if self.vpp_dead:
- raise Exception("VPP is dead when setting up the test")
- time.sleep(.1)
+
+ raise VppDiedError(rv=None, testcase=self.__class__.__name__,
+ method_name=self._testMethodName)
+ self.sleep(.1, "during setUp")
self.vpp_stdout_deque.append(
"--- test setUp() for %s.%s(%s) starts here ---\n" %
(self.__class__.__name__, self._testMethodName,
type(self).test_instance = self
@classmethod
- def pg_enable_capture(cls, interfaces):
+ def pg_enable_capture(cls, interfaces=None):
"""
Enable capture on packet-generator interfaces
- :param interfaces: iterable interface indexes
+ :param interfaces: iterable interface indexes (if None,
+ use self.pg_interfaces)
"""
+ if interfaces is None:
+ interfaces = cls.pg_interfaces
for i in interfaces:
i.enable_capture()
""" Register a capture in the testclass """
# add to the list of captures with current timestamp
cls._captures.append((time.time(), cap_name))
- # filter out from zombies
- cls._zombie_captures = [(stamp, name)
- for (stamp, name) in cls._zombie_captures
- if name != cap_name]
@classmethod
- def pg_start(cls):
- """ Remove any zombie captures and enable the packet generator """
- # how long before capture is allowed to be deleted - otherwise vpp
- # crashes - 100ms seems enough (this shouldn't be needed at all)
- capture_ttl = 0.1
- now = time.time()
- for stamp, cap_name in cls._zombie_captures:
- wait = stamp + capture_ttl - now
- if wait > 0:
- cls.logger.debug("Waiting for %ss before deleting capture %s",
- wait, cap_name)
- time.sleep(wait)
- now = time.time()
- cls.logger.debug("Removing zombie capture %s" % cap_name)
- cls.vapi.cli('packet-generator delete %s' % cap_name)
+ def get_vpp_time(cls):
+ # processes e.g. "Time now 2.190522, Wed, 11 Mar 2020 17:29:54 GMT"
+ # returns float("2.190522")
+ timestr = cls.vapi.cli('show clock')
+ head, sep, tail = timestr.partition(',')
+ head, sep, tail = head.partition('Time now')
+ return float(tail)
+
+ @classmethod
+ def sleep_on_vpp_time(cls, sec):
+ """ Sleep according to time in VPP world """
+ # On a busy system with many processes
+ # we might end up with VPP time being slower than real world
+ # So take that into account when waiting for VPP to do something
+ start_time = cls.get_vpp_time()
+ while cls.get_vpp_time() - start_time < sec:
+ cls.sleep(0.1)
- cls.vapi.cli("trace add pg-input 50") # 50 is maximum
+ @classmethod
+ def pg_start(cls):
+ """ Enable the PG, wait till it is done, then clean up """
+ cls.vapi.cli("trace add pg-input 1000")
cls.vapi.cli('packet-generator enable')
- cls._zombie_captures = cls._captures
+ # PG, when starts, runs to completion -
+ # so let's avoid a race condition,
+ # and wait a little till it's done.
+ # Then clean it up - and then be gone.
+ deadline = time.time() + 300
+ while cls.vapi.cli('show packet-generator').find("Yes") != -1:
+ cls.sleep(0.01) # yield
+ if time.time() > deadline:
+ cls.logger.error("Timeout waiting for pg to stop")
+ break
+ for stamp, cap_name in cls._captures:
+ cls.vapi.cli('packet-generator delete %s' % cap_name)
cls._captures = []
@classmethod
- def create_pg_interfaces(cls, interfaces):
+ def create_pg_interfaces(cls, interfaces, gso=0, gso_size=0):
"""
- Create packet-generator interfaces
+ Create packet-generator interfaces.
- :param interfaces: iterable indexes of the interfaces
+ :param interfaces: iterable indexes of the interfaces.
+ :returns: List of created interfaces.
"""
result = []
for i in interfaces:
- intf = VppPGInterface(cls, i)
+ intf = VppPGInterface(cls, i, gso, gso_size)
setattr(cls, intf.name, intf)
result.append(intf)
cls.pg_interfaces = result
return result
@classmethod
- def create_loopback_interfaces(cls, interfaces):
+ def create_loopback_interfaces(cls, count):
"""
- Create loopback interfaces
-
- :param interfaces: iterable indexes of the interfaces
+ Create loopback interfaces.
+ :param count: number of interfaces created.
+ :returns: List of created interfaces.
"""
- result = []
- for i in interfaces:
- intf = VppLoInterface(cls, i)
+ result = [VppLoInterface(cls) for i in range(count)]
+ for intf in result:
setattr(cls, intf.name, intf)
- result.append(intf)
cls.lo_interfaces = result
return result
+ @classmethod
+ def create_bvi_interfaces(cls, count):
+ """
+ Create BVI interfaces.
+
+ :param count: number of interfaces created.
+ :returns: List of created interfaces.
+ """
+ result = [VppBviInterface(cls) for i in range(count)]
+ for intf in result:
+ setattr(cls, intf.name, intf)
+ cls.bvi_interfaces = result
+ return result
+
@staticmethod
- def extend_packet(packet, size):
+ def extend_packet(packet, size, padding=' '):
"""
- Extend packet to given size by padding with spaces
+ Extend packet to given size by padding with spaces or custom padding
NOTE: Currently works only when Raw layer is present.
:param packet: packet
:param size: target size
+ :param padding: padding used to extend the payload
"""
packet_len = len(packet) + 4
extend = size - packet_len
if extend > 0:
- packet[Raw].load += ' ' * extend
-
- def add_packet_info_to_list(self, info):
- """
- Add packet info to the testcase's packet info list
-
- :param info: packet info
+ num = (extend // len(padding)) + 1
+ packet[Raw].load += (padding * num)[:extend].encode("ascii")
- """
- info.index = len(self.packet_infos)
- self.packet_infos[info.index] = info
+ @classmethod
+ def reset_packet_infos(cls):
+ """ Reset the list of packet info objects and packet counts to zero """
+ cls._packet_infos = {}
+ cls._packet_count_for_dst_if_idx = {}
- def create_packet_info(self, src_pg_index, dst_pg_index):
+ @classmethod
+ def create_packet_info(cls, src_if, dst_if):
"""
Create packet info object containing the source and destination indexes
and add it to the testcase's packet info list
- :param src_pg_index: source packet-generator index
- :param dst_pg_index: destination packet-generator index
+ :param VppInterface src_if: source interface
+ :param VppInterface dst_if: destination interface
:returns: _PacketInfo object
"""
info = _PacketInfo()
- self.add_packet_info_to_list(info)
- info.src = src_pg_index
- info.dst = dst_pg_index
+ info.index = len(cls._packet_infos)
+ info.src = src_if.sw_if_index
+ info.dst = dst_if.sw_if_index
+ if isinstance(dst_if, VppSubInterface):
+ dst_idx = dst_if.parent.sw_if_index
+ else:
+ dst_idx = dst_if.sw_if_index
+ if dst_idx in cls._packet_count_for_dst_if_idx:
+ cls._packet_count_for_dst_if_idx[dst_idx] += 1
+ else:
+ cls._packet_count_for_dst_if_idx[dst_idx] = 1
+ cls._packet_infos[info.index] = info
return info
@staticmethod
:returns: string containing serialized data from packet info
"""
- return "%d %d %d" % (info.index, info.src, info.dst)
+ return "%d %d %d %d %d" % (info.index, info.src, info.dst,
+ info.ip, info.proto)
@staticmethod
- def payload_to_info(payload):
+ def payload_to_info(payload, payload_field='load'):
"""
Convert packet payload to _PacketInfo object
:param payload: packet payload
-
+ :type payload: <class 'scapy.packet.Raw'>
+ :param payload_field: packet fieldname of payload "load" for
+ <class 'scapy.packet.Raw'>
+ :type payload_field: str
:returns: _PacketInfo object containing de-serialized data from payload
"""
- numbers = payload.split()
+ numbers = getattr(payload, payload_field).split()
info = _PacketInfo()
info.index = int(numbers[0])
info.src = int(numbers[1])
info.dst = int(numbers[2])
+ info.ip = int(numbers[3])
+ info.proto = int(numbers[4])
return info
def get_next_packet_info(self, info):
next_index = 0
else:
next_index = info.index + 1
- if next_index == len(self.packet_infos):
+ if next_index == len(self._packet_infos):
return None
else:
- return self.packet_infos[next_index]
+ return self._packet_infos[next_index]
def get_next_packet_info_for_interface(self, src_index, info):
"""
def assert_equal(self, real_value, expected_value, name_or_class=None):
if name_or_class is None:
- self.assertEqual(real_value, expected_value, msg)
+ self.assertEqual(real_value, expected_value)
return
try:
msg = "Invalid %s: %d('%s') does not match expected value %d('%s')"
msg = msg % (getdoc(name_or_class).strip(),
real_value, str(name_or_class(real_value)),
expected_value, str(name_or_class(expected_value)))
- except:
+ except Exception:
msg = "Invalid %s: %s does not match expected value %s" % (
name_or_class, real_value, expected_value)
self.assertEqual(real_value, expected_value, msg)
- def assert_in_range(
- self,
- real_value,
- expected_min,
- expected_max,
- name=None):
+ def assert_in_range(self,
+ real_value,
+ expected_min,
+ expected_max,
+ name=None):
if name is None:
msg = None
else:
name, real_value, expected_min, expected_max)
self.assertTrue(expected_min <= real_value <= expected_max, msg)
+ def assert_packet_checksums_valid(self, packet,
+ ignore_zero_udp_checksums=True):
+ received = packet.__class__(scapy.compat.raw(packet))
+ udp_layers = ['UDP', 'UDPerror']
+ checksum_fields = ['cksum', 'chksum']
+ checksums = []
+ counter = 0
+ temp = received.__class__(scapy.compat.raw(received))
+ while True:
+ layer = temp.getlayer(counter)
+ if layer:
+ layer = layer.copy()
+ layer.remove_payload()
+ for cf in checksum_fields:
+ if hasattr(layer, cf):
+ if ignore_zero_udp_checksums and \
+ 0 == getattr(layer, cf) and \
+ layer.name in udp_layers:
+ continue
+ delattr(temp.getlayer(counter), cf)
+ checksums.append((counter, cf))
+ else:
+ break
+ counter = counter + 1
+ if 0 == len(checksums):
+ return
+ temp = temp.__class__(scapy.compat.raw(temp))
+ for layer, cf in checksums:
+ calc_sum = getattr(temp[layer], cf)
+ self.assert_equal(
+ getattr(received[layer], cf), calc_sum,
+ "packet checksum on layer #%d: %s" % (layer, temp[layer].name))
+ self.logger.debug(
+ "Checksum field `%s` on `%s` layer has correct value `%s`" %
+ (cf, temp[layer].name, calc_sum))
+
+ def assert_checksum_valid(self, received_packet, layer,
+ field_name='chksum',
+ ignore_zero_checksum=False):
+ """ Check checksum of received packet on given layer """
+ received_packet_checksum = getattr(received_packet[layer], field_name)
+ if ignore_zero_checksum and 0 == received_packet_checksum:
+ return
+ recalculated = received_packet.__class__(
+ scapy.compat.raw(received_packet))
+ delattr(recalculated[layer], field_name)
+ recalculated = recalculated.__class__(scapy.compat.raw(recalculated))
+ self.assert_equal(received_packet_checksum,
+ getattr(recalculated[layer], field_name),
+ "packet checksum on layer: %s" % layer)
+
+ def assert_ip_checksum_valid(self, received_packet,
+ ignore_zero_checksum=False):
+ self.assert_checksum_valid(received_packet, 'IP',
+ ignore_zero_checksum=ignore_zero_checksum)
+
+ def assert_tcp_checksum_valid(self, received_packet,
+ ignore_zero_checksum=False):
+ self.assert_checksum_valid(received_packet, 'TCP',
+ ignore_zero_checksum=ignore_zero_checksum)
+
+ def assert_udp_checksum_valid(self, received_packet,
+ ignore_zero_checksum=True):
+ self.assert_checksum_valid(received_packet, 'UDP',
+ ignore_zero_checksum=ignore_zero_checksum)
+
+ def assert_embedded_icmp_checksum_valid(self, received_packet):
+ if received_packet.haslayer(IPerror):
+ self.assert_checksum_valid(received_packet, 'IPerror')
+ if received_packet.haslayer(TCPerror):
+ self.assert_checksum_valid(received_packet, 'TCPerror')
+ if received_packet.haslayer(UDPerror):
+ self.assert_checksum_valid(received_packet, 'UDPerror',
+ ignore_zero_checksum=True)
+ if received_packet.haslayer(ICMPerror):
+ self.assert_checksum_valid(received_packet, 'ICMPerror')
+
+ def assert_icmp_checksum_valid(self, received_packet):
+ self.assert_checksum_valid(received_packet, 'ICMP')
+ self.assert_embedded_icmp_checksum_valid(received_packet)
+
+ def assert_icmpv6_checksum_valid(self, pkt):
+ if pkt.haslayer(ICMPv6DestUnreach):
+ self.assert_checksum_valid(pkt, 'ICMPv6DestUnreach', 'cksum')
+ self.assert_embedded_icmp_checksum_valid(pkt)
+ if pkt.haslayer(ICMPv6EchoRequest):
+ self.assert_checksum_valid(pkt, 'ICMPv6EchoRequest', 'cksum')
+ if pkt.haslayer(ICMPv6EchoReply):
+ self.assert_checksum_valid(pkt, 'ICMPv6EchoReply', 'cksum')
+
+ def get_packet_counter(self, counter):
+ if counter.startswith("/"):
+ counter_value = self.statistics.get_counter(counter)
+ else:
+ counters = self.vapi.cli("sh errors").split('\n')
+ counter_value = 0
+ for i in range(1, len(counters) - 1):
+ results = counters[i].split()
+ if results[1] == counter:
+ counter_value = int(results[0])
+ break
+ return counter_value
+
+ def assert_packet_counter_equal(self, counter, expected_value):
+ counter_value = self.get_packet_counter(counter)
+ self.assert_equal(counter_value, expected_value,
+ "packet counter `%s'" % counter)
+
+ def assert_error_counter_equal(self, counter, expected_value):
+ counter_value = self.statistics.get_err_counter(counter)
+ self.assert_equal(counter_value, expected_value,
+ "error counter `%s'" % counter)
+
+ @classmethod
+ def sleep(cls, timeout, remark=None):
+
+ # /* Allow sleep(0) to maintain win32 semantics, and as decreed
+ # * by Guido, only the main thread can be interrupted.
+ # */
+ # https://github.com/python/cpython/blob/6673decfa0fb078f60587f5cb5e98460eea137c2/Modules/timemodule.c#L1892 # noqa
+ if timeout == 0:
+ # yield quantum
+ if hasattr(os, 'sched_yield'):
+ os.sched_yield()
+ else:
+ time.sleep(0)
+ return
+
+ if hasattr(cls, 'logger'):
+ cls.logger.debug("Starting sleep for %es (%s)", timeout, remark)
+ before = time.time()
+ time.sleep(timeout)
+ after = time.time()
+ if hasattr(cls, 'logger') and after - before > 2 * timeout:
+ cls.logger.error("unexpected self.sleep() result - "
+ "slept for %es instead of ~%es!",
+ after - before, timeout)
+ if hasattr(cls, 'logger'):
+ cls.logger.debug(
+ "Finished sleep (%s) - slept %es (wanted %es)",
+ remark, after - before, timeout)
+
+ def pg_send(self, intf, pkts, worker=None):
+ self.vapi.cli("clear trace")
+ intf.add_stream(pkts, worker=worker)
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+
+ def send_and_assert_no_replies(self, intf, pkts, remark="", timeout=None):
+ self.pg_send(intf, pkts)
+ if not timeout:
+ timeout = 1
+ for i in self.pg_interfaces:
+ i.get_capture(0, timeout=timeout)
+ i.assert_nothing_captured(remark=remark)
+ timeout = 0.1
+
+ def send_and_expect(self, intf, pkts, output, n_rx=None, worker=None):
+ if not n_rx:
+ n_rx = len(pkts)
+ self.pg_send(intf, pkts, worker=worker)
+ rx = output.get_capture(n_rx)
+ return rx
+
+ def send_and_expect_only(self, intf, pkts, output, timeout=None):
+ self.pg_send(intf, pkts)
+ rx = output.get_capture(len(pkts))
+ outputs = [output]
+ if not timeout:
+ timeout = 1
+ for i in self.pg_interfaces:
+ if i not in outputs:
+ i.get_capture(0, timeout=timeout)
+ i.assert_nothing_captured()
+ timeout = 0.1
+
+ return rx
+
+
+def get_testcase_doc_name(test):
+ return getdoc(test.__class__).splitlines()[0]
+
+
+def get_test_description(descriptions, test):
+ short_description = test.shortDescription()
+ if descriptions and short_description:
+ return short_description
+ else:
+ return str(test)
+
+
+class TestCaseInfo(object):
+ def __init__(self, logger, tempdir, vpp_pid, vpp_bin_path):
+ self.logger = logger
+ self.tempdir = tempdir
+ self.vpp_pid = vpp_pid
+ self.vpp_bin_path = vpp_bin_path
+ self.core_crash_test = None
+
class VppTestResult(unittest.TestResult):
"""
methods.
"""
- def __init__(self, stream, descriptions, verbosity):
+ failed_test_cases_info = set()
+ core_crash_test_cases_info = set()
+ current_test_case_info = None
+
+ def __init__(self, stream=None, descriptions=None, verbosity=None,
+ runner=None):
"""
- :param stream File descriptor to store where to report test results. Set
- to the standard error stream by default.
- :param descriptions Boolean variable to store information if to use test
- case descriptions.
+ :param stream File descriptor to store where to report test results.
+ Set to the standard error stream by default.
+ :param descriptions Boolean variable to store information if to use
+ test case descriptions.
:param verbosity Integer variable to store required verbosity level.
"""
- unittest.TestResult.__init__(self, stream, descriptions, verbosity)
+ super(VppTestResult, self).__init__(stream, descriptions, verbosity)
self.stream = stream
self.descriptions = descriptions
self.verbosity = verbosity
self.result_string = None
+ self.runner = runner
def addSuccess(self, test):
"""
:param test:
"""
+ if self.current_test_case_info:
+ self.current_test_case_info.logger.debug(
+ "--- addSuccess() %s.%s(%s) called" % (test.__class__.__name__,
+ test._testMethodName,
+ test._testMethodDoc))
unittest.TestResult.addSuccess(self, test)
self.result_string = colorize("OK", GREEN)
+ self.send_result_through_pipe(test, PASS)
+
def addSkip(self, test, reason):
"""
Record a test skipped.
:param reason:
"""
+ if self.current_test_case_info:
+ self.current_test_case_info.logger.debug(
+ "--- addSkip() %s.%s(%s) called, reason is %s" %
+ (test.__class__.__name__, test._testMethodName,
+ test._testMethodDoc, reason))
unittest.TestResult.addSkip(self, test, reason)
self.result_string = colorize("SKIP", YELLOW)
+ self.send_result_through_pipe(test, SKIP)
+
+ def symlink_failed(self):
+ if self.current_test_case_info:
+ try:
+ failed_dir = os.getenv('FAILED_DIR')
+ link_path = os.path.join(
+ failed_dir,
+ '%s-FAILED' %
+ os.path.basename(self.current_test_case_info.tempdir))
+ if self.current_test_case_info.logger:
+ self.current_test_case_info.logger.debug(
+ "creating a link to the failed test")
+ self.current_test_case_info.logger.debug(
+ "os.symlink(%s, %s)" %
+ (self.current_test_case_info.tempdir, link_path))
+ if os.path.exists(link_path):
+ if self.current_test_case_info.logger:
+ self.current_test_case_info.logger.debug(
+ 'symlink already exists')
+ else:
+ os.symlink(self.current_test_case_info.tempdir, link_path)
+
+ except Exception as e:
+ if self.current_test_case_info.logger:
+ self.current_test_case_info.logger.error(e)
+
+ def send_result_through_pipe(self, test, result):
+ if hasattr(self, 'test_framework_result_pipe'):
+ pipe = self.test_framework_result_pipe
+ if pipe:
+ pipe.send((test.id(), result))
+
+ def log_error(self, test, err, fn_name):
+ if self.current_test_case_info:
+ if isinstance(test, unittest.suite._ErrorHolder):
+ test_name = test.description
+ else:
+ test_name = '%s.%s(%s)' % (test.__class__.__name__,
+ test._testMethodName,
+ test._testMethodDoc)
+ self.current_test_case_info.logger.debug(
+ "--- %s() %s called, err is %s" %
+ (fn_name, test_name, err))
+ self.current_test_case_info.logger.debug(
+ "formatted exception is:\n%s" %
+ "".join(format_exception(*err)))
+
+ def add_error(self, test, err, unittest_fn, error_type):
+ if error_type == FAIL:
+ self.log_error(test, err, 'addFailure')
+ error_type_str = colorize("FAIL", RED)
+ elif error_type == ERROR:
+ self.log_error(test, err, 'addError')
+ error_type_str = colorize("ERROR", RED)
+ else:
+ raise Exception('Error type %s cannot be used to record an '
+ 'error or a failure' % error_type)
+
+ unittest_fn(self, test, err)
+ if self.current_test_case_info:
+ self.result_string = "%s [ temp dir used by test case: %s ]" % \
+ (error_type_str,
+ self.current_test_case_info.tempdir)
+ self.symlink_failed()
+ self.failed_test_cases_info.add(self.current_test_case_info)
+ if is_core_present(self.current_test_case_info.tempdir):
+ if not self.current_test_case_info.core_crash_test:
+ if isinstance(test, unittest.suite._ErrorHolder):
+ test_name = str(test)
+ else:
+ test_name = "'{!s}' ({!s})".format(
+ get_testcase_doc_name(test), test.id())
+ self.current_test_case_info.core_crash_test = test_name
+ self.core_crash_test_cases_info.add(
+ self.current_test_case_info)
+ else:
+ self.result_string = '%s [no temp dir]' % error_type_str
+
+ self.send_result_through_pipe(test, error_type)
+
def addFailure(self, test, err):
"""
Record a test failed result
:param err: error message
"""
- unittest.TestResult.addFailure(self, test, err)
- if hasattr(test, 'tempdir'):
- self.result_string = colorize("FAIL", RED) + \
- ' [ temp dir used by test case: ' + test.tempdir + ' ]'
- else:
- self.result_string = colorize("FAIL", RED) + ' [no temp dir]'
+ self.add_error(test, err, unittest.TestResult.addFailure, FAIL)
def addError(self, test, err):
"""
:param err: error message
"""
- unittest.TestResult.addError(self, test, err)
- if hasattr(test, 'tempdir'):
- self.result_string = colorize("ERROR", RED) + \
- ' [ temp dir used by test case: ' + test.tempdir + ' ]'
- else:
- self.result_string = colorize("ERROR", RED) + ' [no temp dir]'
+ self.add_error(test, err, unittest.TestResult.addError, ERROR)
def getDescription(self, test):
"""
:returns: test description
"""
- # TODO: if none print warning not raise exception
- short_description = test.shortDescription()
- if self.descriptions and short_description:
- return short_description
- else:
- return str(test)
+ return get_test_description(self.descriptions, test)
def startTest(self, test):
"""
:param test:
"""
+
+ def print_header(test):
+ if not hasattr(test.__class__, '_header_printed'):
+ print(double_line_delim)
+ print(colorize(getdoc(test).splitlines()[0], GREEN))
+ print(double_line_delim)
+ test.__class__._header_printed = True
+
+ print_header(test)
+ self.start_test = time.time()
unittest.TestResult.startTest(self, test)
if self.verbosity > 0:
self.stream.writeln(
def stopTest(self, test):
"""
- Stop a test
+ Called when the given test has been run
:param test:
"""
unittest.TestResult.stopTest(self, test)
+
if self.verbosity > 0:
self.stream.writeln(single_line_delim)
- self.stream.writeln("%-60s%s" %
- (self.getDescription(test), self.result_string))
+ self.stream.writeln("%-73s%s" % (self.getDescription(test),
+ self.result_string))
self.stream.writeln(single_line_delim)
else:
- self.stream.writeln("%-60s%s" %
- (self.getDescription(test), self.result_string))
+ self.stream.writeln("%-68s %4.2f %s" %
+ (self.getDescription(test),
+ time.time() - self.start_test,
+ self.result_string))
+
+ self.send_result_through_pipe(test, TEST_RUN)
def printErrors(self):
"""
Print errors from running the test case
"""
- self.stream.writeln()
- self.printErrorList('ERROR', self.errors)
- self.printErrorList('FAIL', self.failures)
+ if len(self.errors) > 0 or len(self.failures) > 0:
+ self.stream.writeln()
+ self.printErrorList('ERROR', self.errors)
+ self.printErrorList('FAIL', self.failures)
+
+ # ^^ that is the last output from unittest before summary
+ if not self.runner.print_summary:
+ devnull = unittest.runner._WritelnDecorator(open(os.devnull, 'w'))
+ self.stream = devnull
+ self.runner.stream = devnull
def printErrorList(self, flavour, errors):
"""
class VppTestRunner(unittest.TextTestRunner):
"""
- A basic test runner implementation which prints results on standard error.
+ A basic test runner implementation which prints results to standard error.
"""
+
@property
def resultclass(self):
"""Class maintaining the results of the tests"""
return VppTestResult
+ def __init__(self, keep_alive_pipe=None, descriptions=True, verbosity=1,
+ result_pipe=None, failfast=False, buffer=False,
+ resultclass=None, print_summary=True, **kwargs):
+ # ignore stream setting here, use hard-coded stdout to be in sync
+ # with prints from VppTestCase methods ...
+ super(VppTestRunner, self).__init__(sys.stdout, descriptions,
+ verbosity, failfast, buffer,
+ resultclass, **kwargs)
+ KeepAliveReporter.pipe = keep_alive_pipe
+
+ self.orig_stream = self.stream
+ self.resultclass.test_framework_result_pipe = result_pipe
+
+ self.print_summary = print_summary
+
+ def _makeResult(self):
+ return self.resultclass(self.stream,
+ self.descriptions,
+ self.verbosity,
+ self)
+
def run(self, test):
"""
Run the tests
:param test:
"""
- print("Running tests using custom test runner") # debug message
- return super(VppTestRunner, self).run(test)
+ faulthandler.enable() # emit stack trace to stderr if killed by signal
+
+ result = super(VppTestRunner, self).run(test)
+ if not self.print_summary:
+ self.stream = self.orig_stream
+ result.stream = self.orig_stream
+ return result
+
+
+class Worker(Thread):
+ def __init__(self, executable_args, logger, env=None, *args, **kwargs):
+ super(Worker, self).__init__(*args, **kwargs)
+ self.logger = logger
+ self.args = executable_args
+ if hasattr(self, 'testcase') and self.testcase.debug_all:
+ if self.testcase.debug_gdbserver:
+ self.args = ['/usr/bin/gdbserver', 'localhost:{port}'
+ .format(port=self.testcase.gdbserver_port)] + args
+ elif self.testcase.debug_gdb and hasattr(self, 'wait_for_gdb'):
+ self.args.append(self.wait_for_gdb)
+ self.app_bin = executable_args[0]
+ self.app_name = os.path.basename(self.app_bin)
+ if hasattr(self, 'role'):
+ self.app_name += ' {role}'.format(role=self.role)
+ self.process = None
+ self.result = None
+ env = {} if env is None else env
+ self.env = copy.deepcopy(env)
+
+ def wait_for_enter(self):
+ if not hasattr(self, 'testcase'):
+ return
+ if self.testcase.debug_all and self.testcase.debug_gdbserver:
+ print()
+ print(double_line_delim)
+ print("Spawned GDB Server for '{app}' with PID: {pid}"
+ .format(app=self.app_name, pid=self.process.pid))
+ elif self.testcase.debug_all and self.testcase.debug_gdb:
+ print()
+ print(double_line_delim)
+ print("Spawned '{app}' with PID: {pid}"
+ .format(app=self.app_name, pid=self.process.pid))
+ else:
+ return
+ print(single_line_delim)
+ print("You can debug '{app}' using:".format(app=self.app_name))
+ if self.testcase.debug_gdbserver:
+ print("sudo gdb " + self.app_bin +
+ " -ex 'target remote localhost:{port}'"
+ .format(port=self.testcase.gdbserver_port))
+ print("Now is the time to attach gdb by running the above "
+ "command, set up breakpoints etc., then resume from "
+ "within gdb by issuing the 'continue' command")
+ self.testcase.gdbserver_port += 1
+ elif self.testcase.debug_gdb:
+ print("sudo gdb " + self.app_bin +
+ " -ex 'attach {pid}'".format(pid=self.process.pid))
+ print("Now is the time to attach gdb by running the above "
+ "command and set up breakpoints etc., then resume from"
+ " within gdb by issuing the 'continue' command")
+ print(single_line_delim)
+ input("Press ENTER to continue running the testcase...")
+
+ def run(self):
+ executable = self.args[0]
+ if not os.path.exists(executable) or not os.access(
+ executable, os.F_OK | os.X_OK):
+ # Exit code that means some system file did not exist,
+ # could not be opened, or had some other kind of error.
+ self.result = os.EX_OSFILE
+ raise EnvironmentError(
+ "executable '%s' is not found or executable." % executable)
+ self.logger.debug("Running executable: '{app}'"
+ .format(app=' '.join(self.args)))
+ env = os.environ.copy()
+ env.update(self.env)
+ env["CK_LOG_FILE_NAME"] = "-"
+ self.process = subprocess.Popen(
+ self.args, shell=False, env=env, preexec_fn=os.setpgrp,
+ stdout=subprocess.PIPE, stderr=subprocess.PIPE)
+ self.wait_for_enter()
+ out, err = self.process.communicate()
+ self.logger.debug("Finished running `{app}'".format(app=self.app_name))
+ self.logger.info("Return code is `%s'" % self.process.returncode)
+ self.logger.info(single_line_delim)
+ self.logger.info("Executable `{app}' wrote to stdout:"
+ .format(app=self.app_name))
+ self.logger.info(single_line_delim)
+ self.logger.info(out.decode('utf-8'))
+ self.logger.info(single_line_delim)
+ self.logger.info("Executable `{app}' wrote to stderr:"
+ .format(app=self.app_name))
+ self.logger.info(single_line_delim)
+ self.logger.info(err.decode('utf-8'))
+ self.logger.info(single_line_delim)
+ self.result = self.process.returncode
+
+
+if __name__ == '__main__':
+ pass