#!/usr/bin/env python
-import subprocess
+from __future__ import print_function
+import gc
+import sys
+import os
+import select
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
+from scapy.packet import Raw
+from hook import StepHook, PollHook, VppDiedError
from vpp_pg_interface import VppPGInterface
from vpp_sub_interface import VppSubInterface
from vpp_lo_interface import VppLoInterface
from vpp_papi_provider import VppPapiProvider
-from scapy.packet import Raw
-from logging import FileHandler, DEBUG
-from log import *
+from vpp_papi.vpp_stats import VPPStats
+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
+
+PASS = 0
+FAIL = 1
+ERROR = 2
+SKIP = 3
+TEST_RUN = 4
+
+debug_framework = False
+if os.getenv('TEST_DEBUG', "0") == "1":
+ debug_framework = True
+ import debug_internal
"""
Test framework module.
#: 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.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.debug(
+ "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.splitlines(True)
+ if len(stderr_fragment) > 0:
+ split[0] = "%s%s" % (stderr_fragment, split[0])
+ if len(split) > 0 and split[-1].endswith(b"\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.debug(
+ "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 os.getenv('SKIP_AARCH64', 'n').lower() in ('yes', 'y', '1')
+
+
+def is_platform_aarch64():
+ return platform.machine() == 'aarch64'
+
+
+def running_extended_tests():
+ s = os.getenv("EXTENDED_TESTS", "n")
+ return True if s.lower() in ("y", "yes", "1") else False
+
+
+def running_on_centos():
+ os_id = os.getenv("OS_ID", "")
+ return True if "centos" in os_id.lower() else False
+
+
+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 = []
+
@property
def packet_infos(self):
"""List of packet infos"""
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":
cls.debug_gdb = True
else:
raise Exception("Unrecognized DEBUG option: '%s'" % d)
+ @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 print_header(cls):
+ if not hasattr(cls, '_header_printed'):
+ print(double_line_delim)
+ print(colorize(getdoc(cls).splitlines()[0], GREEN))
+ print(double_line_delim)
+ cls._header_printed = True
+
@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
+ s = os.getenv("STEP", "n")
+ cls.step = True if s.lower() in ("y", "yes", "1") else False
+ d = os.getenv("DEBUG", None)
+ 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.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()
+
+ 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), "}", "statseg",
+ "{", "socket-name", cls.stats_sock, "}", "plugins",
+ "{", "plugin", "dpdk_plugin.so", "{", "disable",
+ "}", "plugin", "unittest_plugin.so", "{", "enable",
+ "}", "}", ]
+ 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])
+ 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):
stdout=subprocess.PIPE,
stderr=subprocess.PIPE,
bufsize=1)
- except Exception as e:
+ except subprocess.CalledProcessError as e:
cls.logger.critical("Couldn't start vpp: %s" % e)
raise
cls.wait_for_enter()
+ @classmethod
+ def wait_for_stats_socket(cls):
+ deadline = time.time() + 3
+ ok = False
+ while time.time() < deadline or \
+ cls.debug_gdb or cls.debug_gdbserver:
+ if os.path.exists(cls.stats_sock):
+ ok = True
+ break
+ time.sleep(0.8)
+ if not ok:
+ cls.logger.critical("Couldn't stat : {}".format(cls.stats_sock))
+
@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__)
+ gc.collect() # run garbage collection first
+ random.seed()
+ cls.print_header()
+ cls.logger = get_logger(cls.__name__)
+ if hasattr(cls, 'parallel_handler'):
+ cls.logger.addHandler(cls.parallel_handler)
+ cls.logger.propagate = False
cls.tempdir = tempfile.mkdtemp(
- prefix='vpp-unittest-' + cls.__name__ + '-')
- file_handler = FileHandler("%s/log.txt" % cls.tempdir)
- file_handler.setLevel(DEBUG)
- cls.logger.addHandler(file_handler)
- cls.shm_prefix = cls.tempdir.split("/")[-1]
+ prefix='vpp-unittest-%s-' % cls.__name__)
+ cls.stats_sock = "%s/stats.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.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.verbose = 0
cls.vpp_dead = False
cls.registry = VppObjectRegistry()
- print(double_line_delim)
- print(colorize(getdoc(cls).splitlines()[0], YELLOW))
- print(double_line_delim)
+ 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:
+ read_timeout = 0
+ else:
+ read_timeout = 5
+ cls.vapi = VppPapiProvider(cls.shm_prefix, cls.shm_prefix, cls,
+ read_timeout)
if cls.step:
hook = StepHook(cls)
else:
hook = PollHook(cls)
cls.vapi.register_hook(hook)
- time.sleep(0.1)
- hook.poll_vpp()
+ cls.wait_for_stats_socket()
+ 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 Exception:
+ try:
+ cls.vapi.disconnect()
+ except Exception:
+ pass
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:
try:
cls.quit()
- except:
+ except Exception:
pass
- raise t, v, tb
+ raise
@classmethod
def quit(cls):
raw_input("When done debugging, press ENTER to kill the "
"process and finish running the testcase...")
+ # 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 stdderr pump to stop")
+ cls.vpp_stderr_reader_thread.join()
+
if hasattr(cls, 'vpp'):
if hasattr(cls, 'vapi'):
cls.vapi.disconnect()
+ del cls.vapi
cls.vpp.poll()
if cls.vpp.returncode is None:
- cls.vpp.terminate()
+ cls.logger.debug("Sending TERM to vpp")
+ cls.vpp.kill()
+ cls.logger.debug("Waiting for vpp to die")
+ cls.vpp.communicate()
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')
- vpp_output = "".join(cls.vpp_stderr_deque)
- f.write(vpp_output)
- cls.logger.info('\n%s', vpp_output)
- cls.logger.info(single_line_delim)
+ stderr_log(single_line_delim)
+ stderr_log('VPP output to stderr while running %s:', cls.__name__)
+ stderr_log(single_line_delim)
+ vpp_output = "".join(str(cls.vpp_stderr_deque))
+ 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.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 tearDown(self):
""" Show various debug prints after each test """
+ self.logger.debug("--- tearDown() for %s.%s(%s) called ---" %
+ (self.__class__.__name__, self._testMethodName,
+ self._testMethodDoc))
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 interface"))
self.logger.info(self.vapi.ppcli("show hardware"))
- self.logger.info(self.vapi.ppcli("show error"))
+ 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.registry.remove_vpp_config(self.logger)
+ # Save/Dump VPP api trace log
+ api_trace = "vpp_api_trace.%s.log" % self._testMethodName
+ 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))
+ else:
+ self.registry.unregister_all(self.logger)
def setUp(self):
""" Clear trace before running each test"""
+ self.reporter.send_keep_alive(self)
+ self.logger.debug("--- setUp() for %s.%s(%s) called ---" %
+ (self.__class__.__name__, self._testMethodName,
+ self._testMethodDoc))
if self.vpp_dead:
raise Exception("VPP is dead when setting up the test")
- time.sleep(.1)
+ 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()
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)
+ cls.sleep(wait, "before deleting capture %s" % cap_name)
now = time.time()
cls.logger.debug("Removing zombie capture %s" % cap_name)
cls.vapi.cli('packet-generator delete %s' % cap_name)
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.
+ :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
@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
+ num = (extend / len(padding)) + 1
+ packet[Raw].load += (padding * num)[:extend]
@classmethod
def reset_packet_infos(cls):
: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):
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):
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__(str(packet))
+ self.logger.debug(
+ ppp("Verifying packet checksums for packet:", received))
+ udp_layers = ['UDP', 'UDPerror']
+ checksum_fields = ['cksum', 'chksum']
+ checksums = []
+ counter = 0
+ temp = received.__class__(str(received))
+ while True:
+ layer = temp.getlayer(counter)
+ if layer:
+ 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(layer, cf)
+ checksums.append((counter, cf))
+ else:
+ break
+ counter = counter + 1
+ if 0 == len(checksums):
+ return
+ temp = temp.__class__(str(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__(str(received_packet))
+ delattr(recalculated[layer], field_name)
+ recalculated = recalculated.__class__(str(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 assert_packet_counter_equal(self, counter, expected_value):
+ counters = self.vapi.cli("sh errors").split('\n')
+ counter_value = -1
+ for i in range(1, len(counters)):
+ results = counters[i].split()
+ if results[1] == counter:
+ counter_value = int(results[0])
+ break
+ self.assert_equal(counter_value, expected_value,
+ "packet counter `%s'" % counter)
+
+ @classmethod
+ def sleep(cls, timeout, remark=None):
+ 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 time.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 send_and_assert_no_replies(self, intf, pkts, remark="", timeout=None):
+ self.vapi.cli("clear trace")
+ intf.add_stream(pkts)
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+ 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, input, pkts, output):
+ self.vapi.cli("clear trace")
+ input.add_stream(pkts)
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+ if isinstance(object, (list,)):
+ rx = []
+ for o in output:
+ rx.append(output.get_capture(len(pkts)))
+ else:
+ rx = output.get_capture(len(pkts))
+ return rx
+
+ def send_and_expect_only(self, input, pkts, output, timeout=None):
+ self.vapi.cli("clear trace")
+ input.add_stream(pkts)
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+ if isinstance(object, (list,)):
+ outputs = output
+ rx = []
+ for o in outputs:
+ rx.append(output.get_capture(len(pkts)))
+ else:
+ 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, descriptions, verbosity, runner):
"""
:param stream File descriptor to store where to report test results.
Set to the standard error stream by default.
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 = "'{}' ({})".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:
"""
+ test.print_header()
+
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:
self.stream.writeln("%-73s%s" % (self.getDescription(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, stream=sys.stderr, descriptions=True, verbosity=1,
- failfast=False, buffer=False, resultclass=None):
+ def __init__(self, keep_alive_pipe=None, descriptions=True, verbosity=1,
+ result_pipe=None, failfast=False, buffer=False,
+ resultclass=None, print_summary=True):
# 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)
+ 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):
"""
: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, args, logger, env={}):
+ self.logger = logger
+ self.args = args
+ self.result = None
+ self.env = copy.deepcopy(env)
+ super(Worker, self).__init__()
+
+ def run(self):
+ executable = self.args[0]
+ self.logger.debug("Running executable w/args `%s'" % 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)
+ out, err = self.process.communicate()
+ self.logger.debug("Finished running `%s'" % executable)
+ self.logger.info("Return code is `%s'" % self.process.returncode)
+ self.logger.info(single_line_delim)
+ self.logger.info("Executable `%s' wrote to stdout:" % executable)
+ self.logger.info(single_line_delim)
+ self.logger.info(out)
+ self.logger.info(single_line_delim)
+ self.logger.info("Executable `%s' wrote to stderr:" % executable)
+ self.logger.info(single_line_delim)
+ self.logger.info(err)
+ self.logger.info(single_line_delim)
+ self.result = self.process.returncode
Code Review / vpp.git / blobdiff