-#!/usr/bin/env python
-## @package framework
-# Module to handle test case execution.
-#
-# The module provides a set of tools for constructing and running tests and
-# representing the results.
+#!/usr/bin/env python3
+from __future__ import print_function
import logging
-logging.getLogger("scapy.runtime").setLevel(logging.ERROR)
-
-import os
import sys
+import os
+import select
+import signal
import subprocess
import unittest
-from inspect import getdoc
-
-from scapy.utils import wrpcap, rdpcap
-from scapy.packet import Raw
-
-## Static variables to store color formatting strings.
-#
-# These variables (RED, GREEN, YELLOW and LPURPLE) are used to configure
-# the color of the text to be printed in the terminal. Variable END is used
-# to revert the text color to the default one.
-if hasattr(sys.stdout, 'isatty') and sys.stdout.isatty():
- RED = '\033[91m'
- GREEN = '\033[92m'
- YELLOW = '\033[93m'
- LPURPLE = '\033[94m'
- END = '\033[0m'
-else:
- RED = ''
- GREEN = ''
- YELLOW = ''
- LPURPLE = ''
- END = ''
-
-
-## Private class to create packet info object.
-#
-# Help process information about the next packet.
-# Set variables to default values.
+import re
+import time
+import faulthandler
+import random
+import copy
+import platform
+import shutil
+from collections import deque
+from threading import Thread, Event
+from inspect import getdoc, isclass
+from traceback import format_exception
+from logging import FileHandler, DEBUG, Formatter
+from enum import Enum
+from abc import ABC, abstractmethod
+from struct import pack, unpack
+
+import scapy.compat
+from scapy.packet import Raw, Packet
+from config import config, available_cpus, num_cpus, max_vpp_cpus
+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 vpp_papi import VppEnum
+import vpp_papi
+from vpp_papi.vpp_stats import VPPStats
+from vpp_papi.vpp_transport_socket import VppTransportSocketIOError
+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
+from vpp_running import use_running
+from test_result_code import TestResultCode
+
+
+logger = logging.getLogger(__name__)
+
+# Set up an empty logger for the testcase that can be overridden as necessary
+null_logger = logging.getLogger("VppTestCase")
+null_logger.addHandler(logging.NullHandler())
+
+
+if config.debug_framework:
+ import debug_internal
+
+"""
+ Test framework module.
+
+ The module provides a set of tools for constructing and running tests and
+ representing the results.
+"""
+
+
+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 = " while running %s.%s" % (testcase, method_name)
+
+ if self.rv:
+ msg = "VPP subprocess died unexpectedly%s with return code: %d%s." % (
+ in_msg,
+ self.rv,
+ " [%s]" % (self.signal_name if self.signal_name is not None else ""),
+ )
+ else:
+ msg = "VPP subprocess died unexpectedly%s." % in_msg
+
+ super(VppDiedError, self).__init__(msg)
+
+
class _PacketInfo(object):
+ """Private class to create packet info object.
+
+ Help process information about the next packet.
+ Set variables to default values.
+ """
+
+ #: Store the index of the packet.
index = -1
+ #: Store the index of the source packet generator interface of the packet.
src = -1
+ #: 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
- ## @var index
- # Integer variable to store the index of the packet.
- ## @var src
- # Integer variable to store the index of the source packet generator
- # interface of the packet.
- ## @var dst
- # Integer variable to store the index of the destination packet generator
- # interface of the packet.
- ## @var data
- # Object variable to store the copy of the former packet.
-
-## Subclass of the python unittest.TestCase class.
-#
-# This subclass is a base class for test cases that are implemented as classes.
-# It provides methods to create and run test case.
-class VppTestCase(unittest.TestCase):
-
- ## Class method to set class constants necessary to run test case.
- # @param cls The class pointer.
+
+ def __eq__(self, other):
+ index = self.index == other.index
+ src = self.src == other.src
+ dst = self.dst == other.dst
+ data = self.data == other.data
+ return index and src and dst and data
+
+
+def pump_output(testclass):
+ """pump output from vpp stdout/stderr to proper queues"""
+ if not hasattr(testclass, "vpp"):
+ return
+ 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 config.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 config.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_platform_aarch64():
+ return platform.machine() == "aarch64"
+
+
+is_platform_aarch64 = _is_platform_aarch64()
+
+
+def _is_distro_ubuntu2204():
+ with open("/etc/os-release") as f:
+ for line in f.readlines():
+ if "jammy" in line:
+ return True
+ return False
+
+
+is_distro_ubuntu2204 = _is_distro_ubuntu2204()
+
+
+def _is_distro_debian11():
+ with open("/etc/os-release") as f:
+ for line in f.readlines():
+ if "bullseye" in line:
+ return True
+ return False
+
+
+is_distro_debian11 = _is_distro_debian11()
+
+
+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 not hasattr(test, "vpp") or 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, config.vpp, test.tempdir, test.vpp.pid))
+
+
+class TestCaseTag(Enum):
+ # marks the suites that must run at the end
+ # using only a single test runner
+ RUN_SOLO = 1
+ # marks the suites broken on VPP multi-worker
+ FIXME_VPP_WORKERS = 2
+ # marks the suites broken when ASan is enabled
+ FIXME_ASAN = 3
+ # marks suites broken on Ubuntu-22.04
+ FIXME_UBUNTU2204 = 4
+ # marks suites broken on Debian-11
+ FIXME_DEBIAN11 = 5
+ # marks suites broken on debug vpp image
+ FIXME_VPP_DEBUG = 6
+
+
+def create_tag_decorator(e):
+ def decorator(cls):
+ try:
+ cls.test_tags.append(e)
+ except AttributeError:
+ cls.test_tags = [e]
+ return cls
+
+ return decorator
+
+
+tag_run_solo = create_tag_decorator(TestCaseTag.RUN_SOLO)
+tag_fixme_vpp_workers = create_tag_decorator(TestCaseTag.FIXME_VPP_WORKERS)
+tag_fixme_asan = create_tag_decorator(TestCaseTag.FIXME_ASAN)
+tag_fixme_ubuntu2204 = create_tag_decorator(TestCaseTag.FIXME_UBUNTU2204)
+tag_fixme_debian11 = create_tag_decorator(TestCaseTag.FIXME_DEBIAN11)
+tag_fixme_vpp_debug = create_tag_decorator(TestCaseTag.FIXME_VPP_DEBUG)
+
+
+class DummyVpp:
+ returncode = None
+ pid = 0xCAFEBAFE
+
+ def poll(self):
+ pass
+
+ def terminate(self):
+ pass
+
+
+class CPUInterface(ABC):
+ cpus = []
+ skipped_due_to_cpu_lack = False
+
+ @classmethod
+ @abstractmethod
+ def get_cpus_required(cls):
+ pass
+
+ @classmethod
+ def assign_cpus(cls, cpus):
+ cls.cpus = cpus
+
+
+@use_running
+class VppTestCase(CPUInterface, unittest.TestCase):
+ """This subclass is a base class for VPP test cases that are implemented as
+ classes. It provides methods to create and run test case.
+ """
+
+ extra_vpp_statseg_config = ""
+ extra_vpp_config = []
+ extra_vpp_plugin_config = []
+ logger = null_logger
+ vapi_response_timeout = 5
+ remove_configured_vpp_objects_on_tear_down = True
+
+ @property
+ def packet_infos(self):
+ """List of packet infos"""
+ return self._packet_infos
+
+ @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 has_tag(cls, tag):
+ """if the test case has a given tag - return true"""
+ try:
+ return tag in cls.test_tags
+ except AttributeError:
+ pass
+ return False
+
+ @classmethod
+ def is_tagged_run_solo(cls):
+ """if the test case class is timing-sensitive - return true"""
+ return cls.has_tag(TestCaseTag.RUN_SOLO)
+
+ @classmethod
+ def skip_fixme_asan(cls):
+ """if @tag_fixme_asan & ASan is enabled - mark for skip"""
+ if cls.has_tag(TestCaseTag.FIXME_ASAN):
+ vpp_extra_cmake_args = os.environ.get("VPP_EXTRA_CMAKE_ARGS", "")
+ if "DVPP_ENABLE_SANITIZE_ADDR=ON" in vpp_extra_cmake_args:
+ cls = unittest.skip("Skipping @tag_fixme_asan tests")(cls)
+
+ @classmethod
+ def skip_fixme_ubuntu2204(cls):
+ """if distro is ubuntu 22.04 and @tag_fixme_ubuntu2204 mark for skip"""
+ if cls.has_tag(TestCaseTag.FIXME_UBUNTU2204):
+ cls = unittest.skip("Skipping @tag_fixme_ubuntu2204 tests")(cls)
+
+ @classmethod
+ def skip_fixme_debian11(cls):
+ """if distro is Debian-11 and @tag_fixme_debian11 mark for skip"""
+ if cls.has_tag(TestCaseTag.FIXME_DEBIAN11):
+ cls = unittest.skip("Skipping @tag_fixme_debian11 tests")(cls)
+
+ @classmethod
+ def skip_fixme_vpp_debug(cls):
+ cls = unittest.skip("Skipping @tag_fixme_vpp_debug tests")(cls)
+
+ @classmethod
+ def instance(cls):
+ """Return the instance of this testcase"""
+ return cls.test_instance
+
+ @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
+ cls.debug_attach = False
+ if d is None:
+ return
+ dl = d.lower()
+ if dl == "core":
+ cls.debug_core = True
+ elif dl == "gdb" or dl == "gdb-all":
+ cls.debug_gdb = True
+ elif dl == "gdbserver" or dl == "gdbserver-all":
+ cls.debug_gdbserver = True
+ elif dl == "attach":
+ cls.debug_attach = True
+ else:
+ raise Exception("Unrecognized DEBUG option: '%s'" % d)
+ if dl == "gdb-all" or dl == "gdbserver-all":
+ cls.debug_all = True
+
+ @classmethod
+ def get_vpp_worker_count(cls):
+ if not hasattr(cls, "vpp_worker_count"):
+ if cls.has_tag(TestCaseTag.FIXME_VPP_WORKERS):
+ cls.vpp_worker_count = 0
+ else:
+ cls.vpp_worker_count = config.vpp_worker_count
+ return cls.vpp_worker_count
+
+ @classmethod
+ def get_cpus_required(cls):
+ return 1 + cls.get_vpp_worker_count()
+
@classmethod
def setUpConstants(cls):
- cls.vpp_bin = os.getenv('VPP_TEST_BIN', "vpp")
- cls.plugin_path = os.getenv('VPP_TEST_PLUGIN_PATH')
- cls.vpp_api_test_bin = os.getenv("VPP_TEST_API_TEST_BIN",
- "vpp-api-test")
- cls.vpp_cmdline = [cls.vpp_bin, "unix", "nodaemon", "api-segment", "{",
- "prefix", "unittest", "}"]
- if cls.plugin_path is not None:
- cls.vpp_cmdline.extend(["plugin_path", cls.plugin_path])
-
- cls.vpp_api_test_cmdline = [cls.vpp_api_test_bin, "chroot", "prefix",
- "unittest"]
+ """Set-up the test case class based on environment variables"""
+ cls.step = config.step
+ cls.plugin_path = ":".join(config.vpp_plugin_dir)
+ cls.test_plugin_path = ":".join(config.vpp_test_plugin_dir)
+ cls.extern_plugin_path = ":".join(config.extern_plugin_dir)
+ debug_cli = ""
+ if cls.step or cls.debug_gdb or cls.debug_gdbserver:
+ debug_cli = "cli-listen localhost:5002"
+ size = re.search(r"\d+[gG]", config.coredump_size)
+ if size:
+ coredump_size = f"coredump-size {config.coredump_size}".lower()
+ else:
+ coredump_size = "coredump-size unlimited"
+ default_variant = config.variant
+ if default_variant is not None:
+ default_variant = "default { variant %s 100 }" % default_variant
+ else:
+ default_variant = ""
+
+ api_fuzzing = config.api_fuzz
+ if api_fuzzing is None:
+ api_fuzzing = "off"
+
+ cls.vpp_cmdline = [
+ config.vpp,
+ "unix",
+ "{",
+ "nodaemon",
+ debug_cli,
+ "full-coredump",
+ coredump_size,
+ "runtime-dir",
+ cls.tempdir,
+ "}",
+ "api-trace",
+ "{",
+ "on",
+ "}",
+ "api-segment",
+ "{",
+ "prefix",
+ cls.get_api_segment_prefix(),
+ "}",
+ "cpu",
+ "{",
+ "main-core",
+ str(cls.cpus[0]),
+ ]
+ if cls.extern_plugin_path not in (None, ""):
+ cls.extra_vpp_plugin_config.append("add-path %s" % cls.extern_plugin_path)
+ if cls.get_vpp_worker_count():
+ cls.vpp_cmdline.extend(
+ ["corelist-workers", ",".join([str(x) for x in cls.cpus[1:]])]
+ )
+ cls.vpp_cmdline.extend(
+ [
+ "}",
+ "physmem",
+ "{",
+ "max-size",
+ "32m",
+ "}",
+ "statseg",
+ "{",
+ "socket-name",
+ cls.get_stats_sock_path(),
+ cls.extra_vpp_statseg_config,
+ "}",
+ "socksvr",
+ "{",
+ "socket-name",
+ cls.get_api_sock_path(),
+ "}",
+ "node { ",
+ default_variant,
+ "}",
+ "api-fuzz {",
+ api_fuzzing,
+ "}",
+ "plugins",
+ "{",
+ "plugin",
+ "dpdk_plugin.so",
+ "{",
+ "disable",
+ "}",
+ "plugin",
+ "rdma_plugin.so",
+ "{",
+ "disable",
+ "}",
+ "plugin",
+ "lisp_unittest_plugin.so",
+ "{",
+ "enable",
+ "}",
+ "plugin",
+ "unittest_plugin.so",
+ "{",
+ "enable",
+ "}",
+ ]
+ + cls.extra_vpp_plugin_config
+ + [
+ "}",
+ ]
+ )
+
+ if cls.extra_vpp_config is not None:
+ cls.vpp_cmdline.extend(cls.extra_vpp_config)
+
+ if not cls.debug_attach:
+ 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):
+ if cls.debug_gdbserver:
+ print(double_line_delim)
+ print("Spawned GDB server with PID: %d" % cls.vpp.pid)
+ elif cls.debug_gdb:
+ print(double_line_delim)
+ print("Spawned VPP with PID: %d" % cls.vpp.pid)
+ else:
+ cls.logger.debug("Spawned VPP with PID: %d" % cls.vpp.pid)
+ return
+ print(single_line_delim)
+ print("You can debug VPP using:")
+ if cls.debug_gdbserver:
+ print(
+ f"sudo gdb {config.vpp} "
+ f"-ex 'target remote localhost:{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(f"sudo gdb {config.vpp} -ex 'attach {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)
+ input("Press ENTER to continue running the testcase...")
+
+ @classmethod
+ def attach_vpp(cls):
+ cls.vpp = DummyVpp()
+
+ @classmethod
+ def run_vpp(cls):
+ if (
+ is_distro_ubuntu2204 == True and cls.has_tag(TestCaseTag.FIXME_UBUNTU2204)
+ ) or (is_distro_debian11 == True and cls.has_tag(TestCaseTag.FIXME_DEBIAN11)):
+ return
+ cls.logger.debug(f"Assigned cpus: {cls.cpus}")
+ cmdline = cls.vpp_cmdline
+
+ if cls.debug_gdbserver:
+ gdbserver = "/usr/bin/gdbserver"
+ if not os.path.isfile(gdbserver) or not os.access(gdbserver, os.X_OK):
+ raise Exception(
+ "gdbserver binary '%s' does not exist or is "
+ "not executable" % gdbserver
+ )
+
+ cmdline = [
+ gdbserver,
+ "localhost:{port}".format(port=cls.gdbserver_port),
+ ] + cls.vpp_cmdline
+ cls.logger.info("Gdbserver cmdline is %s", " ".join(cmdline))
+
try:
- cls.verbose = int(os.getenv("V", 0))
- except:
- cls.verbose = 0
-
- ## @var vpp_bin
- # String variable to store the path to vpp (vector packet processor).
- ## @var vpp_api_test_bin
- # String variable to store the path to vpp_api_test (vpp API test tool).
- ## @var vpp_cmdline
- # List of command line attributes for vpp.
- ## @var vpp_api_test_cmdline
- # List of command line attributes for vpp_api_test.
- ## @var verbose
- # Integer variable to store required verbosity level.
-
- ## Class method to start the test case.
- # 1. Initiate test case constants and set test case variables to default
- # values.
- # 2. Remove files from the shared memory.
- # 3. Start vpp as a subprocess.
- # @param cls The class pointer.
+ cls.vpp = subprocess.Popen(
+ cmdline, stdout=subprocess.PIPE, 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.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 get_stats_sock_path(cls):
+ return "%s/stats.sock" % cls.tempdir
+
+ @classmethod
+ def get_api_sock_path(cls):
+ return "%s/api.sock" % cls.tempdir
+
+ @classmethod
+ def get_api_segment_prefix(cls):
+ return os.path.basename(cls.tempdir) # Only used for VAPI
+
+ @classmethod
+ def get_tempdir(cls):
+ if cls.debug_attach:
+ tmpdir = f"{config.tmp_dir}/unittest-attach-gdb"
+ else:
+ tmpdir = f"{config.tmp_dir}/vpp-unittest-{cls.__name__}"
+ if config.wipe_tmp_dir:
+ shutil.rmtree(tmpdir, ignore_errors=True)
+ os.mkdir(tmpdir)
+ return tmpdir
+
+ @classmethod
+ def create_file_handler(cls):
+ if config.log_dir is None:
+ cls.file_handler = FileHandler(f"{cls.tempdir}/log.txt")
+ return
+
+ logdir = f"{config.log_dir}/vpp-unittest-{cls.__name__}"
+ if config.wipe_tmp_dir:
+ shutil.rmtree(logdir, ignore_errors=True)
+ os.mkdir(logdir)
+ cls.file_handler = FileHandler(f"{logdir}/log.txt")
+
@classmethod
def setUpClass(cls):
+ """
+ Perform class setup before running the testcase
+ Remove shared memory files, start vpp and connect the vpp-api
+ """
+ super(VppTestCase, cls).setUpClass()
+ cls.logger = get_logger(cls.__name__)
+ random.seed(config.rnd_seed)
+ if hasattr(cls, "parallel_handler"):
+ cls.logger.addHandler(cls.parallel_handler)
+ cls.logger.propagate = False
+ cls.set_debug_flags(config.debug)
+ cls.tempdir = cls.get_tempdir()
+ cls.create_file_handler()
+ 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__)
+ os.chdir(cls.tempdir)
+ cls.logger.info(
+ "Temporary dir is %s, api socket is %s",
+ cls.tempdir,
+ cls.get_api_sock_path(),
+ )
+ cls.logger.debug("Random seed is %s", config.rnd_seed)
cls.setUpConstants()
- cls.pg_streams = []
- cls.MY_MACS = {}
- cls.MY_IP4S = {}
- cls.MY_IP6S = {}
- cls.VPP_MACS = {}
- cls.VPP_IP4S = {}
- cls.VPP_IP6S = {}
- cls.packet_infos = {}
- print "=================================================================="
- print YELLOW + getdoc(cls) + END
- print "=================================================================="
- os.system("rm -f /dev/shm/unittest-global_vm")
- os.system("rm -f /dev/shm/unittest-vpe-api")
- os.system("rm -f /dev/shm/unittest-db")
- cls.vpp = subprocess.Popen(cls.vpp_cmdline, stderr=subprocess.PIPE)
- ## @var pg_streams
- # List variable to store packet-generator streams for interfaces.
- ## @var MY_MACS
- # Dictionary variable to store host MAC addresses connected to packet
- # generator interfaces.
- ## @var MY_IP4S
- # Dictionary variable to store host IPv4 addresses connected to packet
- # generator interfaces.
- ## @var MY_IP6S
- # Dictionary variable to store host IPv6 addresses connected to packet
- # generator interfaces.
- ## @var VPP_MACS
- # Dictionary variable to store VPP MAC addresses of the packet
- # generator interfaces.
- ## @var VPP_IP4S
- # Dictionary variable to store VPP IPv4 addresses of the packet
- # generator interfaces.
- ## @var VPP_IP6S
- # Dictionary variable to store VPP IPv6 addresses of the packet
- # generator interfaces.
- ## @var vpp
- # Test case object variable to store file descriptor of running vpp
- # subprocess with open pipe to the standard error stream per
- # VppTestCase object.
-
- ## Class method to do cleaning when all tests (test_) defined for
- # VppTestCase class are finished.
- # 1. Terminate vpp and kill all vpp instances.
- # 2. Remove files from the shared memory.
- # @param cls The class pointer.
+ cls.reset_packet_infos()
+ cls._pcaps = []
+ cls._old_pcaps = []
+ cls.verbose = 0
+ cls.vpp_dead = False
+ 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:
+ if cls.debug_attach:
+ cls.attach_vpp()
+ else:
+ cls.run_vpp()
+ if not hasattr(cls, "vpp"):
+ return
+ cls.reporter.send_keep_alive(cls, "setUpClass")
+ VppTestResult.current_test_case_info = TestCaseInfo(
+ cls.logger, cls.tempdir, cls.vpp.pid, config.vpp
+ )
+ cls.vpp_stdout_deque = deque()
+ cls.vpp_stderr_deque = deque()
+ # Pump thread in a non-debug-attached & not running-vpp
+ if not cls.debug_attach and not hasattr(cls, "running_vpp"):
+ 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 or cls.debug_attach:
+ cls.vapi_response_timeout = 0
+ cls.vapi = VppPapiProvider(cls.__name__, cls, cls.vapi_response_timeout)
+ if cls.step:
+ hook = hookmodule.StepHook(cls)
+ else:
+ hook = hookmodule.PollHook(cls)
+ cls.vapi.register_hook(hook)
+ cls.statistics = VPPStats(socketname=cls.get_stats_sock_path())
+ 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 (vpp_papi.VPPIOError, Exception) 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 e
+ if cls.debug_attach:
+ last_line = cls.vapi.cli("show thread").split("\n")[-2]
+ cls.vpp_worker_count = int(last_line.split(" ")[0])
+ print("Detected VPP with %s workers." % cls.vpp_worker_count)
+ except vpp_papi.VPPRuntimeError as e:
+ cls.logger.debug("%s" % e)
+ cls.quit()
+ raise e
+ except Exception as e:
+ cls.logger.debug("Exception connecting to VPP: %s" % e)
+ cls.quit()
+ raise e
+
+ @classmethod
+ def _debug_quit(cls):
+ if cls.debug_gdbserver or cls.debug_gdb:
+ try:
+ 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
+
@classmethod
def quit(cls):
- cls.vpp.terminate()
- cls.vpp = None
- os.system("rm -f /dev/shm/unittest-global_vm")
- os.system("rm -f /dev/shm/unittest-vpe-api")
- os.system("rm -f /dev/shm/unittest-db")
+ """
+ Disconnect vpp-api, kill vpp and cleanup shared memory files
+ """
+ cls._debug_quit()
+ if hasattr(cls, "running_vpp"):
+ cls.vpp.quit_vpp()
+
+ # 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 not cls.debug_attach and 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")
+ try:
+ outs, errs = cls.vpp.communicate(timeout=5)
+ except subprocess.TimeoutExpired:
+ cls.vpp.kill()
+ outs, errs = cls.vpp.communicate()
+ cls.logger.debug("Deleting class vpp attribute on %s", cls.__name__)
+ if not cls.debug_attach and not hasattr(cls, "running_vpp"):
+ cls.vpp.stdout.close()
+ cls.vpp.stderr.close()
+ # If vpp is a dynamic attribute set by the func use_running,
+ # deletion will result in an AttributeError that we can
+ # safetly pass.
+ try:
+ del cls.vpp
+ except AttributeError:
+ pass
+
+ 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"):
+ 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)
+ 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"):
+ 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)
+ 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)
- ## Class method to define tear down action of the VppTestCase class.
- # @param cls The class pointer.
@classmethod
def tearDownClass(cls):
+ """Perform final cleanup after running all tests in this test-case"""
+ cls.logger.debug("--- tearDownClass() for %s called ---" % cls.__name__)
+ if not hasattr(cls, "vpp"):
+ return
+ cls.reporter.send_keep_alive(cls, "tearDownClass")
cls.quit()
+ cls.file_handler.close()
+ cls.reset_packet_infos()
+ if config.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. ---")
- ## Method to define tear down VPP actions of the test case.
- # @param self The object pointer.
def tearDown(self):
- self.cli(2, "show int")
- self.cli(2, "show trace")
- self.cli(2, "show hardware")
- self.cli(2, "show ip arp")
- self.cli(2, "show ip fib")
- self.cli(2, "show error")
- self.cli(2, "show run")
-
- ## Method to define setup action of the test case.
- # @param self The object pointer.
- def setUp(self):
- self.cli(2, "clear trace")
-
- ## Class method to print logs.
- # Based on set level of verbosity print text in the terminal.
- # @param cls The class pointer.
- # @param s String variable to store text to be printed.
- # @param v Integer variable to store required level of verbosity.
- @classmethod
- def log(cls, s, v=1):
- if cls.verbose >= v:
- print "LOG: " + LPURPLE + s + END
-
- ## Class method to execute api commands.
- # Based on set level of verbosity print the output of the api command in
- # the terminal.
- # @param cls The class pointer.
- # @param s String variable to store api command string.
- @classmethod
- def api(cls, s):
- p = subprocess.Popen(cls.vpp_api_test_cmdline,
- stdout=subprocess.PIPE,
- stdin=subprocess.PIPE,
- stderr=subprocess.PIPE)
- if cls.verbose > 0:
- print "API: " + RED + s + END
- p.stdin.write(s)
- out = p.communicate()[0]
- out = out.replace("vat# ", "", 2)
- if cls.verbose > 0:
- if len(out) > 1:
- print YELLOW + out + END
- ## @var p
- # Object variable to store file descriptor of vpp_api_test subprocess
- # with open pipes to the standard output, inputs and error streams.
- ## @var out
- # Tuple variable to store standard output of vpp_api_test subprocess
- # where the string "vat# " is replaced by empty string later.
-
- ## Class method to execute cli commands.
- # Based on set level of verbosity of the log and verbosity defined by
- # environmental variable execute the cli command and print the output in
- # the terminal.
- # CLI command is executed via vpp API test tool (exec + cli_command)
- # @param cls The class pointer.
- # @param v Integer variable to store required level of verbosity.
- # @param s String variable to store cli command string.
- @classmethod
- def cli(cls, v, s):
- if cls.verbose < v:
+ """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 hasattr(self, "vpp"):
return
- p = subprocess.Popen(cls.vpp_api_test_cmdline,
- stdout=subprocess.PIPE,
- stdin=subprocess.PIPE,
- stderr=subprocess.PIPE)
- if cls.verbose > 0:
- print "CLI: " + RED + s + END
- p.stdin.write('exec ' + s)
- out = p.communicate()[0]
- out = out.replace("vat# ", "", 2)
- if cls.verbose > 0:
- if len(out) > 1:
- print YELLOW + out + END
- ## @var p
- # Object variable to store file descriptor of vpp_api_test subprocess
- # with open pipes to the standard output, inputs and error streams.
- ## @var out
- # Tuple variable to store standard output of vpp_api_test subprocess
- # where the string "vat# " is replaced by empty string later.
-
- ## Class method to create incoming packet stream for the packet-generator
- # interface.
- # Delete old /tmp/pgX_in.pcap file if exists and create the empty one and
- # fill it with provided packets and add it to pg_streams list.
- # @param cls The class pointer.
- # @param i Integer variable to store the index of the packet-generator
- # interface to create packet stream for.
- # @param pkts List variable to store packets to be added to the stream.
- @classmethod
- def pg_add_stream(cls, i, pkts):
- os.system("rm -f /tmp/pg%u_in.pcap" % i)
- wrpcap("/tmp/pg%u_in.pcap" % i, pkts)
- # no equivalent API command
- cls.cli(0, "packet-generator new pcap /tmp/pg%u_in.pcap source pg%u"
- " name pcap%u" % (i, i, i))
- cls.pg_streams.append('pcap%u' % i)
-
- ## Class method to enable packet capturing for the packet-generator
- # interface.
- # Delete old /tmp/pgX_out.pcap file if exists and set the packet-generator
- # to capture outgoing packets to /tmp/pgX_out.pcap file.
- # @param cls The class pointer.
- # @param args List variable to store the indexes of the packet-generator
- # interfaces to start packet capturing for.
- @classmethod
- def pg_enable_capture(cls, args):
- for i in args:
- os.system("rm -f /tmp/pg%u_out.pcap" % i)
- cls.cli(0, "packet-generator capture pg%u pcap /tmp/pg%u_out.pcap"
- % (i, i))
-
- ## Class method to start packet sending.
- # Start to send packets for all defined pg streams. Delete every stream
- # from the stream list when sent and clear the pg_streams list.
- # @param cls The class pointer.
- @classmethod
- def pg_start(cls):
- cls.cli(2, "trace add pg-input 50") # 50 is maximum
- cls.cli(0, 'packet-generator enable')
- for stream in cls.pg_streams:
- cls.cli(0, 'packet-generator delete %s' % stream)
- cls.pg_streams = []
-
- ## Class method to return captured packets.
- # Return packet captured for the defined packet-generator interface. Open
- # the corresponding pcap file (/tmp/pgX_out.pcap), read the content and
- # store captured packets to output variable.
- # @param cls The class pointer.
- # @param o Integer variable to store the index of the packet-generator
- # interface.
- # @return output List of packets captured on the defined packet-generator
- # interface. If the corresponding pcap file (/tmp/pgX_out.pcap) does not
- # exist return empty list.
- @classmethod
- def pg_get_capture(cls, o):
- pcap_filename = "/tmp/pg%u_out.pcap" % o
+
try:
- output = rdpcap(pcap_filename)
- except IOError: # TODO
- cls.log("WARNING: File %s does not exist, probably because no"
- " packets arrived" % pcap_filename)
- return []
- return output
- ## @var pcap_filename
- # File descriptor to the corresponding pcap file.
-
- ## Class method to create packet-generator interfaces.
- # Create packet-generator interfaces and add host MAC addresses connected
- # to these packet-generator interfaces to the MY_MACS dictionary.
- # @param cls The class pointer.
- # @param args List variable to store the indexes of the packet-generator
- # interfaces to be created.
- @classmethod
- def create_interfaces(cls, args):
- for i in args:
- cls.MY_MACS[i] = "02:00:00:00:ff:%02x" % i
- cls.log("My MAC address is %s" % (cls.MY_MACS[i]))
- cls.api("pg_create_interface if_id %u" % i)
- cls.api("sw_interface_set_flags pg%u admin-up" % i)
-
- ## Static method to extend packet to specified size
- # Extend provided packet to the specified size (including Ethernet FCS).
- # The packet is extended by adding corresponding number of spaces to the
- # packet payload.
- # NOTE: Currently works only when Raw layer is present.
- # @param packet Variable to store packet object.
- # @param size Integer variable to store the required size of the packet.
+ 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()
+ if self.remove_configured_vpp_objects_on_tear_down:
+ 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))
+ shutil.move(tmp_api_trace, vpp_api_trace_log)
+ except VppTransportSocketIOError:
+ self.logger.debug(
+ "VppTransportSocketIOError: 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()
+ if not hasattr(self, "vpp"):
+ return
+ self.reporter.send_keep_alive(self)
+ if self.vpp_dead:
+ raise VppDiedError(
+ rv=None,
+ testcase=self.__class__.__name__,
+ method_name=self._testMethodName,
+ )
+ self.sleep(0.1, "during setUp")
+ self.vpp_stdout_deque.append(
+ "--- test setUp() for %s.%s(%s) starts here ---\n"
+ % (self.__class__.__name__, self._testMethodName, self._testMethodDoc)
+ )
+ self.vpp_stderr_deque.append(
+ "--- test setUp() for %s.%s(%s) starts here ---\n"
+ % (self.__class__.__name__, self._testMethodName, self._testMethodDoc)
+ )
+ self.vapi.cli("clear trace")
+ # store the test instance inside the test class - so that objects
+ # holding the class can access instance methods (like assertEqual)
+ type(self).test_instance = self
+
+ @classmethod
+ def pg_enable_capture(cls, interfaces=None):
+ """
+ Enable capture on packet-generator interfaces
+
+ :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()
+
+ @classmethod
+ def register_pcap(cls, intf, worker):
+ """Register a pcap in the testclass"""
+ # add to the list of captures with current timestamp
+ cls._pcaps.append((intf, worker))
+
+ @classmethod
+ 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)
+
+ @classmethod
+ def pg_start(cls, trace=True):
+ """Enable the PG, wait till it is done, then clean up"""
+ for (intf, worker) in cls._old_pcaps:
+ intf.handle_old_pcap_file(intf.get_in_path(worker), intf.in_history_counter)
+ cls._old_pcaps = []
+ if trace:
+ cls.vapi.cli("clear trace")
+ cls.vapi.cli("trace add pg-input 1000")
+ cls.vapi.cli("packet-generator enable")
+ # 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 intf, worker in cls._pcaps:
+ cls.vapi.cli("packet-generator delete %s" % intf.get_cap_name(worker))
+ cls._old_pcaps = cls._pcaps
+ cls._pcaps = []
+
+ @classmethod
+ def create_pg_interfaces_internal(cls, interfaces, gso=0, gso_size=0, mode=None):
+ """
+ Create packet-generator interfaces.
+
+ :param interfaces: iterable indexes of the interfaces.
+ :returns: List of created interfaces.
+
+ """
+ result = []
+ for i in interfaces:
+ intf = VppPGInterface(cls, i, gso, gso_size, mode)
+ setattr(cls, intf.name, intf)
+ result.append(intf)
+ cls.pg_interfaces = result
+ return result
+
+ @classmethod
+ def create_pg_ip4_interfaces(cls, interfaces, gso=0, gso_size=0):
+ if not hasattr(cls, "vpp"):
+ cls.pg_interfaces = []
+ return cls.pg_interfaces
+ pgmode = VppEnum.vl_api_pg_interface_mode_t
+ return cls.create_pg_interfaces_internal(
+ interfaces, gso, gso_size, pgmode.PG_API_MODE_IP4
+ )
+
+ @classmethod
+ def create_pg_ip6_interfaces(cls, interfaces, gso=0, gso_size=0):
+ if not hasattr(cls, "vpp"):
+ cls.pg_interfaces = []
+ return cls.pg_interfaces
+ pgmode = VppEnum.vl_api_pg_interface_mode_t
+ return cls.create_pg_interfaces_internal(
+ interfaces, gso, gso_size, pgmode.PG_API_MODE_IP6
+ )
+
+ @classmethod
+ def create_pg_interfaces(cls, interfaces, gso=0, gso_size=0):
+ if not hasattr(cls, "vpp"):
+ cls.pg_interfaces = []
+ return cls.pg_interfaces
+ pgmode = VppEnum.vl_api_pg_interface_mode_t
+ return cls.create_pg_interfaces_internal(
+ interfaces, gso, gso_size, pgmode.PG_API_MODE_ETHERNET
+ )
+
+ @classmethod
+ def create_pg_ethernet_interfaces(cls, interfaces, gso=0, gso_size=0):
+ if not hasattr(cls, "vpp"):
+ cls.pg_interfaces = []
+ return cls.pg_interfaces
+ pgmode = VppEnum.vl_api_pg_interface_mode_t
+ return cls.create_pg_interfaces_internal(
+ interfaces, gso, gso_size, pgmode.PG_API_MODE_ETHERNET
+ )
+
+ @classmethod
+ def create_loopback_interfaces(cls, count):
+ """
+ Create loopback interfaces.
+
+ :param count: number of interfaces created.
+ :returns: List of created interfaces.
+ """
+ if not hasattr(cls, "vpp"):
+ cls.lo_interfaces = []
+ return cls.lo_interfaces
+ result = [VppLoInterface(cls) for i in range(count)]
+ for intf in result:
+ setattr(cls, intf.name, 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.
+ """
+ if not hasattr(cls, "vpp"):
+ cls.bvi_interfaces = []
+ return cls.bvi_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 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
- ## @var packet_len
- # Integer variable to store the current packet length including
- # Ethernet FCS.
- ## @var extend
- # Integer variable to store the size of the packet extension.
-
- ## Method to add packet info object to the packet_infos list.
- # Extend the existing packet_infos list with the given information from
- # the packet.
- # @param self The object pointer.
- # @param info Object to store required information from the packet.
- def add_packet_info_to_list(self, info):
- info.index = len(self.packet_infos)
- self.packet_infos[info.index] = info
- ## @var info.index
- # Info object attribute to store the packet order in the stream.
- ## @var packet_infos
- # List variable to store required information from packets.
-
- ## Method to create packet info object.
- # Create the existing packet_infos list with the given information from
- # the packet.
- # @param self The object pointer.
- # @param pg_id Integer variable to store the index of the packet-generator
- # interface.
- def create_packet_info(self, pg_id, target_id):
+ num = (extend // len(padding)) + 1
+ packet[Raw].load += (padding * num)[:extend].encode("ascii")
+
+ @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 = {}
+
+ @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 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 = pg_id
- info.dst = target_id
+ 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
- ## @var info
- # Object to store required information from packet.
- ## @var info.src
- # Info object attribute to store the index of the source packet
- # generator interface of the packet.
- ## @var info.dst
- # Info object attribute to store the index of the destination packet
- # generator interface of the packet.
-
- ## Static method to return packet info string.
- # Create packet info string from the provided info object that will be put
- # to the packet payload.
- # @param info Object to store required information from the packet.
- # @return String of information about packet's order in the stream, source
- # and destination packet generator interface.
+
@staticmethod
def info_to_payload(info):
- return "%d %d %d" % (info.index, info.src, info.dst)
+ """
+ Convert _PacketInfo object to packet payload
+
+ :param info: _PacketInfo object
+
+ :returns: string containing serialized data from packet info
+ """
+
+ # retrieve payload, currently 18 bytes (4 x ints + 1 short)
+ return pack("iiiih", info.index, info.src, info.dst, info.ip, info.proto)
- ## Static method to create packet info object from the packet payload.
- # Create packet info object and set its attribute values based on data
- # gained from the packet payload.
- # @param payload String variable to store packet payload.
- # @return info Object to store required information about the packet.
@staticmethod
- def payload_to_info(payload):
- numbers = payload.split()
+ 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
+
+ """
+
+ # retrieve payload, currently 18 bytes (4 x ints + 1 short)
+ payload_b = getattr(payload, payload_field)[:18]
+
info = _PacketInfo()
- info.index = int(numbers[0])
- info.src = int(numbers[1])
- info.dst = int(numbers[2])
+ info.index, info.src, info.dst, info.ip, info.proto = unpack("iiiih", payload_b)
+
+ # some SRv6 TCs depend on get an exception if bad values are detected
+ if info.index > 0x4000:
+ raise ValueError("Index value is invalid")
+
return info
- ## @var info.index
- # Info object attribute to store the packet order in the stream.
- ## @var info.src
- # Info object attribute to store the index of the source packet
- # generator interface of the packet.
- ## @var info.dst
- # Info object attribute to store the index of the destination packet
- # generator interface of the packet.
-
- ## Method to return packet info object of the next packet in
- # the packet_infos list.
- # Get the next packet info object from the packet_infos list by increasing
- # the packet_infos list index by one.
- # @param self The object pointer.
- # @param info Object to store required information about the packet.
- # @return packet_infos[next_index] Next info object from the packet_infos
- # list with stored information about packets. Return None if the end of
- # the list is reached.
+
def get_next_packet_info(self, info):
+ """
+ Iterate over the packet info list stored in the testcase
+ Start iteration with first element if info is None
+ Continue based on index in info if info is specified
+
+ :param info: info or None
+ :returns: next info in list or None if no more infos
+ """
if info is None:
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]
- ## @var next_index
- # Integer variable to store the index of the next info object.
-
- ## Method to return packet info object of the next packet with the required
- # source packet generator interface.
- # Iterate over the packet_infos list and search for the next packet info
- # object with the required source packet generator interface.
- # @param self The object pointer.
- # @param src_pg Integer variable to store index of requested source packet
- # generator interface.
- # @param info Object to store required information about the packet.
- # @return packet_infos[next_index] Next info object from the packet_infos
- # list with stored information about packets. Return None if the end of
- # the list is reached.
- def get_next_packet_info_for_interface(self, src_pg, info):
+ return self._packet_infos[next_index]
+
+ def get_next_packet_info_for_interface(self, src_index, info):
+ """
+ Search the packet info list for the next packet info with same source
+ interface index
+
+ :param src_index: source interface index to search for
+ :param info: packet info - where to start the search
+ :returns: packet info or None
+
+ """
while True:
info = self.get_next_packet_info(info)
if info is None:
return None
- if info.src == src_pg:
+ if info.src == src_index:
return info
- ## @var info.src
- # Info object attribute to store the index of the source packet
- # generator interface of the packet.
-
- ## Method to return packet info object of the next packet with required
- # source and destination packet generator interfaces.
- # Search for the next packet info object with the required source and
- # destination packet generator interfaces.
- # @param self The object pointer.
- # @param src_pg Integer variable to store the index of the requested source
- # packet generator interface.
- # @param dst_pg Integer variable to store the index of the requested source
- # packet generator interface.
- # @param info Object to store required information about the packet.
- # @return info Object with the info about the next packet with with
- # required source and destination packet generator interfaces. Return None
- # if there is no other packet with required data.
- def get_next_packet_info_for_interface2(self, src_pg, dst_pg, info):
+
+ def get_next_packet_info_for_interface2(self, src_index, dst_index, info):
+ """
+ Search the packet info list for the next packet info with same source
+ and destination interface indexes
+
+ :param src_index: source interface index to search for
+ :param dst_index: destination interface index to search for
+ :param info: packet info - where to start the search
+ :returns: packet info or None
+
+ """
while True:
- info = self.get_next_packet_info_for_interface(src_pg, info)
+ info = self.get_next_packet_info_for_interface(src_index, info)
if info is None:
return None
- if info.dst == dst_pg:
+ if info.dst == dst_index:
return info
- ## @var info.dst
- # Info object attribute to store the index of the destination packet
- # generator interface of the packet.
+
+ def assert_equal(self, real_value, expected_value, name_or_class=None):
+ if name_or_class is None:
+ 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 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):
+ if name is None:
+ msg = None
+ else:
+ msg = "Invalid %s: %s out of range <%s,%s>" % (
+ 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 reversed(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,
+ checksum_field_names=["chksum", "cksum"],
+ ignore_zero_checksum=False,
+ ):
+ """Check checksum of received packet on given layer"""
+ layer_copy = received_packet[layer].copy()
+ layer_copy.remove_payload()
+ field_name = None
+ for f in checksum_field_names:
+ if hasattr(layer_copy, f):
+ field_name = f
+ break
+ if field_name is None:
+ raise Exception(
+ f"Layer `{layer}` has none of checksum fields: `{checksum_field_names}`."
+ )
+ 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),
+ f"packet checksum (field: {field_name}) 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")
+ self.assert_embedded_icmp_checksum_valid(pkt)
+ if pkt.haslayer(ICMPv6EchoRequest):
+ self.assert_checksum_valid(pkt, "ICMPv6EchoRequest")
+ if pkt.haslayer(ICMPv6EchoReply):
+ self.assert_checksum_valid(pkt, "ICMPv6EchoReply")
+
+ def get_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_counter_equal(self, counter, expected_value, thread=None, index=0):
+ c = self.get_counter(counter)
+ if thread is not None:
+ c = c[thread][index]
+ else:
+ c = sum(x[index] for x in c)
+ self.assert_equal(c, expected_value, "counter `%s'" % counter)
+
+ def assert_packet_counter_equal(self, counter, expected_value):
+ counter_value = self.get_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[counter].sum()
+ 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
+
+ cls.logger.debug("Starting sleep for %es (%s)", timeout, remark)
+ before = time.time()
+ time.sleep(timeout)
+ after = time.time()
+ if after - before > 2 * timeout:
+ cls.logger.error(
+ "unexpected self.sleep() result - slept for %es instead of ~%es!",
+ after - before,
+ timeout,
+ )
+
+ cls.logger.debug(
+ "Finished sleep (%s) - slept %es (wanted %es)",
+ remark,
+ after - before,
+ timeout,
+ )
+
+ def virtual_sleep(self, timeout, remark=None):
+ self.logger.debug("Moving VPP time by %s (%s)", timeout, remark)
+ self.vapi.cli("set clock adjust %s" % timeout)
+
+ def pg_send(self, intf, pkts, worker=None, trace=True):
+ intf.add_stream(pkts, worker=worker)
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start(trace=trace)
+
+ def snapshot_stats(self, stats_diff):
+ """Return snapshot of interesting stats based on diff dictionary."""
+ stats_snapshot = {}
+ for sw_if_index in stats_diff:
+ for counter in stats_diff[sw_if_index]:
+ stats_snapshot[counter] = self.statistics[counter]
+ self.logger.debug(f"Took statistics stats_snapshot: {stats_snapshot}")
+ return stats_snapshot
+
+ def compare_stats_with_snapshot(self, stats_diff, stats_snapshot):
+ """Assert appropriate difference between current stats and snapshot."""
+ for sw_if_index in stats_diff:
+ for cntr, diff in stats_diff[sw_if_index].items():
+ if sw_if_index == "err":
+ self.assert_equal(
+ self.statistics[cntr].sum(),
+ stats_snapshot[cntr].sum() + diff,
+ f"'{cntr}' counter value (previous value: "
+ f"{stats_snapshot[cntr].sum()}, "
+ f"expected diff: {diff})",
+ )
+ else:
+ try:
+ self.assert_equal(
+ self.statistics[cntr][:, sw_if_index].sum(),
+ stats_snapshot[cntr][:, sw_if_index].sum() + diff,
+ f"'{cntr}' counter value (previous value: "
+ f"{stats_snapshot[cntr][:, sw_if_index].sum()}, "
+ f"expected diff: {diff})",
+ )
+ except IndexError as e:
+ # if diff is 0, then this most probably a case where
+ # test declares multiple interfaces but traffic hasn't
+ # passed through this one yet - which means the counter
+ # value is 0 and can be ignored
+ if 0 != diff:
+ raise Exception(
+ f"Couldn't sum counter: {cntr} on sw_if_index: {sw_if_index}"
+ ) from e
+
+ def send_and_assert_no_replies(
+ self, intf, pkts, remark="", timeout=None, stats_diff=None, trace=True, msg=None
+ ):
+ if stats_diff:
+ stats_snapshot = self.snapshot_stats(stats_diff)
+
+ self.pg_send(intf, pkts)
+
+ try:
+ if not timeout:
+ timeout = 1
+ for i in self.pg_interfaces:
+ i.assert_nothing_captured(timeout=timeout, remark=remark)
+ timeout = 0.1
+ finally:
+ if trace:
+ if msg:
+ self.logger.debug(f"send_and_assert_no_replies: {msg}")
+ self.logger.debug(self.vapi.cli("show trace"))
+
+ if stats_diff:
+ self.compare_stats_with_snapshot(stats_diff, stats_snapshot)
+
+ def send_and_expect(
+ self,
+ intf,
+ pkts,
+ output,
+ n_rx=None,
+ worker=None,
+ trace=True,
+ msg=None,
+ stats_diff=None,
+ ):
+ if stats_diff:
+ stats_snapshot = self.snapshot_stats(stats_diff)
+
+ if not n_rx:
+ n_rx = 1 if isinstance(pkts, Packet) else len(pkts)
+ self.pg_send(intf, pkts, worker=worker, trace=trace)
+ rx = output.get_capture(n_rx)
+ if trace:
+ if msg:
+ self.logger.debug(f"send_and_expect: {msg}")
+ self.logger.debug(self.vapi.cli("show trace"))
+
+ if stats_diff:
+ self.compare_stats_with_snapshot(stats_diff, stats_snapshot)
+
+ return rx
+
+ def send_and_expect_load_balancing(
+ self, input, pkts, outputs, worker=None, trace=True
+ ):
+ self.pg_send(input, pkts, worker=worker, trace=trace)
+ rxs = []
+ for oo in outputs:
+ rx = oo._get_capture(1)
+ self.assertNotEqual(0, len(rx))
+ rxs.append(rx)
+ if trace:
+ self.logger.debug(self.vapi.cli("show trace"))
+ return rxs
+
+ def send_and_expect_some(self, intf, pkts, output, worker=None, trace=True):
+ self.pg_send(intf, pkts, worker=worker, trace=trace)
+ rx = output._get_capture(1)
+ if trace:
+ self.logger.debug(self.vapi.cli("show trace"))
+ self.assertTrue(len(rx) > 0)
+ self.assertTrue(len(rx) < len(pkts))
+ return rx
+
+ def send_and_expect_only(self, intf, pkts, output, timeout=None, stats_diff=None):
+ if stats_diff:
+ stats_snapshot = self.snapshot_stats(stats_diff)
+
+ 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.assert_nothing_captured(timeout=timeout)
+ timeout = 0.1
+
+ if stats_diff:
+ self.compare_stats_with_snapshot(stats_diff, stats_snapshot)
+
+ 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
-## Subclass of the python unittest.TestResult class.
-#
-# This subclass provides methods to compile information about which tests have
-# succeeded and which have failed.
class VppTestResult(unittest.TestResult):
- ## The constructor.
- # @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.
- def __init__(self, stream, descriptions, verbosity):
- unittest.TestResult.__init__(self, stream, descriptions, verbosity)
+ """
+ @property result_string
+ String variable to store the test case result string.
+ @property errors
+ List variable containing 2-tuples of TestCase instances and strings
+ holding formatted tracebacks. Each tuple represents a test which
+ raised an unexpected exception.
+ @property failures
+ List variable containing 2-tuples of TestCase instances and strings
+ holding formatted tracebacks. Each tuple represents a test where
+ a failure was explicitly signalled using the TestCase.assert*()
+ methods.
+ """
+
+ 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 verbosity Integer variable to store required verbosity level.
+ """
+ super(VppTestResult, self).__init__(stream, descriptions, verbosity)
self.stream = stream
self.descriptions = descriptions
self.verbosity = verbosity
+ self.result_code = TestResultCode.TEST_RUN
self.result_string = None
- ## @var result_string
- # String variable to store the test case result string.
+ self.runner = runner
+ self.printed = []
-
- ## Method called when the test case succeeds.
- # Run the default implementation (that does nothing) and set the result
- # string in case of test case success.
- # @param self The object pointer.
- # @param test Object variable to store the test case instance.
def addSuccess(self, test):
+ """
+ Record a test succeeded result
+
+ :param test:
+
+ """
+ self.log_result("addSuccess", test)
unittest.TestResult.addSuccess(self, test)
- self.result_string = GREEN + "OK" + END
- ## @var result_string
- # String variable to store the test case result string.
-
- ## Method called when the test case signals a failure.
- # Run the default implementation that appends a tuple (test, formatted_err)
- # to the instance's failures attribute, where formatted_err is a formatted
- # traceback derived from err and set the result string in case of test case
- # success.
- # @param self The object pointer.
- # @param test Object variable to store the test case instance.
- # @param err Tuple variable to store the error data:
- # (type, value, traceback).
+ self.result_string = colorize("OK", GREEN)
+ self.result_code = TestResultCode.PASS
+ self.send_result_through_pipe(test, self.result_code)
+
+ def addExpectedFailure(self, test, err):
+ self.log_result("addExpectedFailure", test, err)
+ super().addExpectedFailure(test, err)
+ self.result_string = colorize("FAIL", GREEN)
+ self.result_code = TestResultCode.EXPECTED_FAIL
+ self.send_result_through_pipe(test, self.result_code)
+
+ def addUnexpectedSuccess(self, test):
+ self.log_result("addUnexpectedSuccess", test)
+ super().addUnexpectedSuccess(test)
+ self.result_string = colorize("OK", RED)
+ self.result_code = TestResultCode.UNEXPECTED_PASS
+ self.send_result_through_pipe(test, self.result_code)
+
+ def addSkip(self, test, reason):
+ """
+ Record a test skipped.
+
+ :param test:
+ :param reason:
+
+ """
+ self.log_result("addSkip", test, reason=reason)
+ unittest.TestResult.addSkip(self, test, reason)
+ self.result_string = colorize("SKIP", YELLOW)
+
+ if reason == "not enough cpus":
+ self.result_code = TestResultCode.SKIP_CPU_SHORTAGE
+ else:
+ self.result_code = TestResultCode.SKIP
+ self.send_result_through_pipe(test, self.result_code)
+
+ def symlink_failed(self):
+ if self.current_test_case_info:
+ try:
+ failed_dir = config.failed_dir
+ link_path = os.path.join(
+ failed_dir,
+ "%s-FAILED" % os.path.basename(self.current_test_case_info.tempdir),
+ )
+
+ 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):
+ 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:
+ 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_result(self, fn, test, err=None, reason=None):
+ 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,
+ )
+ extra_msg = ""
+ if err:
+ extra_msg += f", error is {err}"
+ if reason:
+ extra_msg += f", reason is {reason}"
+ self.current_test_case_info.logger.debug(
+ f"--- {fn}() {test_name} called{extra_msg}"
+ )
+ if 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, result_code):
+ self.result_code = result_code
+ if result_code == TestResultCode.FAIL:
+ self.log_result("addFailure", test, err=err)
+ error_type_str = colorize("FAIL", RED)
+ elif result_code == TestResultCode.ERROR:
+ self.log_result("addError", test, err=err)
+ error_type_str = colorize("ERROR", RED)
+ else:
+ raise Exception(f"Unexpected result code {result_code}")
+
+ 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, result_code)
+
def addFailure(self, test, err):
- unittest.TestResult.addFailure(self, test, err)
- self.result_string = RED + "FAIL" + END
- ## @var result_string
- # String variable to store the test case result string.
-
- ## Method called when the test case raises an unexpected exception.
- # Run the default implementation that appends a tuple (test, formatted_err)
- # to the instance's error attribute, where formatted_err is a formatted
- # traceback derived from err and set the result string in case of test case
- # unexpected failure.
- # @param self The object pointer.
- # @param test Object variable to store the test case instance.
- # @param err Tuple variable to store the error data:
- # (type, value, traceback).
+ """
+ Record a test failed result
+
+ :param test:
+ :param err: error message
+
+ """
+ self.add_error(test, err, unittest.TestResult.addFailure, TestResultCode.FAIL)
+
def addError(self, test, err):
- unittest.TestResult.addError(self, test, err)
- self.result_string = RED + "ERROR" + END
- ## @var result_string
- # String variable to store the test case result string.
-
- ## Method to get the description of the test case.
- # Used to get the description string from the test case object.
- # @param self The object pointer.
- # @param test Object variable to store the test case instance.
- # @return String of the short description if exist otherwise return test
- # case name string.
+ """
+ Record a test error result
+
+ :param test:
+ :param err: error message
+
+ """
+ self.add_error(test, err, unittest.TestResult.addError, TestResultCode.ERROR)
+
def getDescription(self, test):
- # 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)
- ## @var short_description
- # String variable to store the short description of the test case.
-
- ## Method called when the test case is about to be run.
- # Run the default implementation and based on the set verbosity level write
- # the starting string to the output stream.
- # @param self The object pointer.
- # @param test Object variable to store the test case instance.
+ """
+ Get test description
+
+ :param test:
+ :returns: test description
+
+ """
+ return get_test_description(self.descriptions, test)
+
def startTest(self, test):
+ """
+ Start a test
+
+ :param test:
+
+ """
+
+ def print_header(test):
+ if test.__class__ in self.printed:
+ return
+
+ test_doc = getdoc(test)
+ if not test_doc:
+ raise Exception("No doc string for test '%s'" % test.id())
+
+ test_title = test_doc.splitlines()[0].rstrip()
+ test_title = colorize(test_title, GREEN)
+ if test.is_tagged_run_solo():
+ test_title = colorize(f"SOLO RUN: {test_title}", YELLOW)
+
+ # This block may overwrite the colorized title above,
+ # but we want this to stand out and be fixed
+ if test.has_tag(TestCaseTag.FIXME_VPP_WORKERS):
+ test_title = colorize(f"FIXME with VPP workers: {test_title}", RED)
+
+ if test.has_tag(TestCaseTag.FIXME_ASAN):
+ test_title = colorize(f"FIXME with ASAN: {test_title}", RED)
+ test.skip_fixme_asan()
+
+ if is_distro_ubuntu2204 == True and test.has_tag(
+ TestCaseTag.FIXME_UBUNTU2204
+ ):
+ test_title = colorize(f"FIXME on Ubuntu-22.04: {test_title}", RED)
+ test.skip_fixme_ubuntu2204()
+
+ if is_distro_debian11 == True and test.has_tag(TestCaseTag.FIXME_DEBIAN11):
+ test_title = colorize(f"FIXME on Debian-11: {test_title}", RED)
+ test.skip_fixme_debian11()
+
+ if "debug" in config.vpp_tag and test.has_tag(TestCaseTag.FIXME_VPP_DEBUG):
+ test_title = colorize(f"FIXME on VPP Debug: {test_title}", RED)
+ test.skip_fixme_vpp_debug()
+
+ if hasattr(test, "vpp_worker_count"):
+ if test.vpp_worker_count == 0:
+ test_title += " [main thread only]"
+ elif test.vpp_worker_count == 1:
+ test_title += " [1 worker thread]"
+ else:
+ test_title += f" [{test.vpp_worker_count} worker threads]"
+
+ if test.__class__.skipped_due_to_cpu_lack:
+ test_title = colorize(
+ f"{test_title} [skipped - not enough cpus, "
+ f"required={test.__class__.get_cpus_required()}, "
+ f"available={max_vpp_cpus}]",
+ YELLOW,
+ )
+
+ print(double_line_delim)
+ print(test_title)
+ print(double_line_delim)
+ self.printed.append(test.__class__)
+
+ print_header(test)
+ self.start_test = time.time()
unittest.TestResult.startTest(self, test)
if self.verbosity > 0:
self.stream.writeln("Starting " + self.getDescription(test) + " ...")
- self.stream.writeln("------------------------------------------------------------------")
+ self.stream.writeln(single_line_delim)
- ## Method called after the test case has been executed.
- # Run the default implementation and based on the set verbosity level write
- # the result string to the output stream.
- # @param self The object pointer.
- # @param test Object variable to store the test case instance.
def stopTest(self, test):
+ """
+ Called when the given test has been run
+
+ :param test:
+
+ """
unittest.TestResult.stopTest(self, test)
+
+ result_code_to_suffix = {
+ TestResultCode.PASS: "",
+ TestResultCode.FAIL: "",
+ TestResultCode.ERROR: "",
+ TestResultCode.SKIP: "",
+ TestResultCode.TEST_RUN: "",
+ TestResultCode.SKIP_CPU_SHORTAGE: "",
+ TestResultCode.EXPECTED_FAIL: " [EXPECTED FAIL]",
+ TestResultCode.UNEXPECTED_PASS: " [UNEXPECTED PASS]",
+ }
+
if self.verbosity > 0:
- self.stream.writeln("------------------------------------------------------------------")
- self.stream.writeln("%-60s%s" % (self.getDescription(test), self.result_string))
- self.stream.writeln("------------------------------------------------------------------")
+ self.stream.writeln(single_line_delim)
+ self.stream.writeln(
+ "%-72s%s%s"
+ % (
+ self.getDescription(test),
+ self.result_string,
+ result_code_to_suffix[self.result_code],
+ )
+ )
+ self.stream.writeln(single_line_delim)
else:
- self.stream.writeln("%-60s%s" % (self.getDescription(test), self.result_string))
+ self.stream.writeln(
+ "%-67s %4.2f %s%s"
+ % (
+ self.getDescription(test),
+ time.time() - self.start_test,
+ self.result_string,
+ result_code_to_suffix[self.result_code],
+ )
+ )
+
+ self.send_result_through_pipe(test, TestResultCode.TEST_RUN)
- ## Method to write errors and failures information to the output stream.
- # Write content of errors and failures lists to the output stream.
- # @param self The object pointer.
def printErrors(self):
- self.stream.writeln()
- self.printErrorList('ERROR', self.errors)
- self.printErrorList('FAIL', self.failures)
- ## @var errors
- # List variable containing 2-tuples of TestCase instances and strings
- # holding formatted tracebacks. Each tuple represents a test which
- # raised an unexpected exception.
- ## @var failures
- # List variable containing 2-tuples of TestCase instances and strings
- # holding formatted tracebacks. Each tuple represents a test where
- # a failure was explicitly signalled using the TestCase.assert*()
- # methods.
-
- ## Method to write the error information to the output stream.
- # Write content of error lists to the output stream together with error
- # type and test case description.
- # @param self The object pointer.
- # @param flavour String variable to store error type.
- # @param errors List variable to store 2-tuples of TestCase instances and
- # strings holding formatted tracebacks.
+ """
+ Print errors from running the test case
+ """
+ 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):
+ """
+ Print error list to the output stream together with error type
+ and test case description.
+
+ :param flavour: error type
+ :param errors: iterable errors
+
+ """
for test, err in errors:
- self.stream.writeln('=' * 70)
+ self.stream.writeln(double_line_delim)
self.stream.writeln("%s: %s" % (flavour, self.getDescription(test)))
- self.stream.writeln('-' * 70)
+ self.stream.writeln(single_line_delim)
self.stream.writeln("%s" % err)
- ## @var test
- # Object variable to store the test case instance.
- ## @var err
- # String variable to store formatted tracebacks.
-## Subclass of the python unittest.TextTestRunner class.
-#
-# A basic test runner implementation which prints results on standard error.
class VppTestRunner(unittest.TextTestRunner):
- ## Class object variable to store the results of a set of tests.
- resultclass = VppTestResult
-
- ## Method to run the test.
- # Print debug message in the terminal and run the standard run() method
- # of the test runner collecting the result into the test result object.
- # @param self The object pointer.
- # @param test Object variable to store the test case instance.
- # @return Test result object of the VppTestRunner.
+ """
+ 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):
- print "Running tests using custom test runner" # debug message
- return super(VppTestRunner, self).run(test)
+ """
+ Run the tests
+
+ :param 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}': '{cmd}'".format(
+ app=self.app_name, cmd=" ".join(self.args)
+ )
+ )
+ env = os.environ.copy()
+ env.update(self.env)
+ env["CK_LOG_FILE_NAME"] = "-"
+ self.process = subprocess.Popen(
+ ["stdbuf", "-o0", "-e0"] + 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
Code Review / vpp.git / blobdiff