#!/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.
-
-import logging
-logging.getLogger("scapy.runtime").setLevel(logging.ERROR)
+from __future__ import print_function
+import gc
+import sys
import os
-import subprocess
+import select
import unittest
-from inspect import getdoc
-
-from scapy.utils import wrpcap, rdpcap
+import tempfile
+import time
+import faulthandler
+import random
+import copy
+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 scapy.packet import Raw
+from hook import StepHook, PollHook
+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 log import RED, GREEN, YELLOW, double_line_delim, single_line_delim, \
+ getLogger, colorize
+from vpp_object import VppObjectRegistry
+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
+
+debug_framework = False
+if os.getenv('TEST_DEBUG', "0") == "1":
+ debug_framework = True
+ import debug_internal
+
+
+"""
+ Test framework module.
+
+ The module provides a set of tools for constructing and running tests and
+ representing the results.
+"""
+
-## 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.
-RED = '\033[91m'
-GREEN = '\033[92m'
-YELLOW = '\033[93m'
-LPURPLE = '\033[94m'
-END = '\033[0m'
-
-## Private class to create packet info object.
-#
-# Help process information about the next packet.
-# Set variables to default values.
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.
+
+ 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 """
+ stdout_fragment = ""
+ stderr_fragment = ""
+ while not testclass.pump_thread_stop_flag.wait(0):
+ 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("\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 running_extended_tests():
+ try:
+ s = os.getenv("EXTENDED_TESTS")
+ return True if s.lower() in ("y", "yes", "1") else False
+ except:
+ return False
+ return False
+
+
+def running_on_centos():
+ try:
+ os_id = os.getenv("OS_ID")
+ return True if "centos" in os_id.lower() else False
+ except:
+ return False
+ return False
+
+
+class KeepAliveReporter(object):
+ """
+ Singleton object which reports test start to parent process
+ """
+ _shared_state = {}
+
+ def __init__(self):
+ self.__dict__ = self._shared_state
+
+ @property
+ def pipe(self):
+ return self._pipe
+
+ @pipe.setter
+ def pipe(self, pipe):
+ if hasattr(self, '_pipe'):
+ raise Exception("Internal error - pipe should only be set once.")
+ self._pipe = pipe
+
+ def send_keep_alive(self, test):
+ """
+ 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 = test.__name__
+ else:
+ desc = test.shortDescription()
+ if not desc:
+ desc = str(test)
+
+ self.pipe.send((desc, test.vpp_bin, test.tempdir, test.vpp.pid))
+
+
class VppTestCase(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.
+ """
+
+ @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 instance(cls):
+ """Return the instance of this testcase"""
+ return cls.test_instance
+
+ @classmethod
+ def set_debug_flags(cls, d):
+ cls.debug_core = False
+ cls.debug_gdb = False
+ cls.debug_gdbserver = False
+ if d is None:
+ return
+ dl = d.lower()
+ if dl == "core":
+ cls.debug_core = True
+ elif dl == "gdb":
+ cls.debug_gdb = True
+ elif dl == "gdbserver":
+ cls.debug_gdbserver = True
+ else:
+ raise Exception("Unrecognized DEBUG option: '%s'" % d)
- ## Class method to set class constants necessary to run test case.
- # @param cls The class pointer.
@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
+ try:
+ c = os.getenv("CACHE_OUTPUT", "1")
+ cls.cache_vpp_output = \
+ False if c.lower() in ("n", "no", "0") else True
+ except:
+ cls.cache_vpp_output = True
+ cls.set_debug_flags(d)
cls.vpp_bin = os.getenv('VPP_TEST_BIN', "vpp")
- 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", "}"]
- cls.vpp_api_test_cmdline = [cls.vpp_api_test_bin, "chroot", "prefix",
- "unittest"]
+ cls.plugin_path = os.getenv('VPP_TEST_PLUGIN_PATH')
+ cls.extern_plugin_path = os.getenv('EXTERN_PLUGINS')
+ plugin_path = None
+ if cls.plugin_path is not None:
+ if cls.extern_plugin_path is not None:
+ plugin_path = "%s:%s" % (
+ cls.plugin_path, cls.extern_plugin_path)
+ else:
+ plugin_path = cls.plugin_path
+ elif cls.extern_plugin_path is not None:
+ plugin_path = cls.extern_plugin_path
+ debug_cli = ""
+ if cls.step or cls.debug_gdb or cls.debug_gdbserver:
+ debug_cli = "cli-listen localhost:5002"
+ coredump_size = None
try:
- cls.verbose = int(os.getenv("V", 0))
+ size = os.getenv("COREDUMP_SIZE")
+ if size is not None:
+ coredump_size = "coredump-size %s" % size
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.
+ pass
+ if coredump_size is None:
+ coredump_size = "coredump-size unlimited"
+ cls.vpp_cmdline = [cls.vpp_bin, "unix",
+ "{", "nodaemon", debug_cli, "full-coredump",
+ coredump_size, "}", "api-trace", "{", "on", "}",
+ "api-segment", "{", "prefix", cls.shm_prefix, "}",
+ "plugins", "{", "plugin", "dpdk_plugin.so", "{",
+ "disable", "}", "}", ]
+ if plugin_path is not None:
+ cls.vpp_cmdline.extend(["plugin_path", plugin_path])
+ cls.logger.info("vpp_cmdline: %s" % 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 the VPP using e.g.:")
+ if cls.debug_gdbserver:
+ print("gdb " + cls.vpp_bin + " -ex 'target remote localhost:7777'")
+ print("Now is the time to attach a gdb by running the above "
+ "command, set up breakpoints etc. and then resume VPP from "
+ "within gdb by issuing the 'continue' command")
+ elif cls.debug_gdb:
+ print("gdb " + cls.vpp_bin + " -ex 'attach %s'" % cls.vpp.pid)
+ print("Now is the time to attach a gdb by running the above "
+ "command and set up breakpoints etc.")
+ print(single_line_delim)
+ raw_input("Press ENTER to continue running the testcase...")
+
+ @classmethod
+ def run_vpp(cls):
+ 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:7777'] + cls.vpp_cmdline
+ cls.logger.info("Gdbserver cmdline is %s", " ".join(cmdline))
+
+ try:
+ cls.vpp = subprocess.Popen(cmdline,
+ stdout=subprocess.PIPE,
+ stderr=subprocess.PIPE,
+ bufsize=1)
+ except Exception as e:
+ cls.logger.critical("Couldn't start vpp: %s" % e)
+ raise
+
+ cls.wait_for_enter()
+
@classmethod
def setUpClass(cls):
+ """
+ Perform class setup before running the testcase
+ Remove shared memory files, start vpp and connect the vpp-api
+ """
+ gc.collect() # run garbage collection first
+ random.seed()
+ cls.logger = getLogger(cls.__name__)
+ cls.tempdir = tempfile.mkdtemp(
+ prefix='vpp-unittest-%s-' % cls.__name__)
+ 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 = cls.tempdir.split("/")[-1]
+ os.chdir(cls.tempdir)
+ cls.logger.info("Temporary dir is %s, shm prefix is %s",
+ cls.tempdir, cls.shm_prefix)
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._captures = []
+ cls._zombie_captures = []
+ 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:
+ cls.run_vpp()
+ cls.reporter.send_keep_alive(cls)
+ cls.vpp_stdout_deque = deque()
+ cls.vpp_stderr_deque = deque()
+ 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()
+ cls.vapi = VppPapiProvider(cls.shm_prefix, cls.shm_prefix, cls)
+ if cls.step:
+ hook = StepHook(cls)
+ else:
+ hook = PollHook(cls)
+ cls.vapi.register_hook(hook)
+ cls.sleep(0.1, "after vpp startup, before initial poll")
+ try:
+ hook.poll_vpp()
+ except:
+ 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:
+ try:
+ cls.vapi.disconnect()
+ except:
+ 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()
+ try:
+ cls.quit()
+ except:
+ pass
+ raise (t, v, tb)
+
@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")
-
- ## Class method to define tear down action of the VppTestCase class.
- # @param cls The class pointer.
+ """
+ Disconnect vpp-api, kill vpp and cleanup shared memory files
+ """
+ if (cls.debug_gdbserver or cls.debug_gdb) and hasattr(cls, 'vpp'):
+ cls.vpp.poll()
+ if cls.vpp.returncode is None:
+ print(double_line_delim)
+ print("VPP or GDB server is still running")
+ print(single_line_delim)
+ raw_input("When done debugging, press ENTER to kill the "
+ "process and finish running the testcase...")
+
+ os.write(cls.pump_thread_wakeup_pipe[1], 'ding dong wake up')
+ cls.pump_thread_stop_flag.set()
+ 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.logger.debug("Sending TERM to vpp")
+ cls.vpp.terminate()
+ 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'):
+ 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)
+
@classmethod
def tearDownClass(cls):
+ """ Perform final cleanup after running all tests in this test-case """
cls.quit()
+ cls.file_handler.close()
+ cls.reset_packet_infos()
+ if debug_framework:
+ debug_internal.on_tear_down_class(cls)
- ## 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.
+ """ 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 interface"))
+ self.logger.info(self.vapi.ppcli("show hardware"))
+ self.logger.info(self.vapi.ppcli("show error"))
+ self.logger.info(self.vapi.ppcli("show run"))
+ self.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):
- self.cli(2, "clear trace")
+ """ 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")
+ self.sleep(.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
- ## 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:
- 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("sudo 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.
+ 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 pg_enable_capture(cls, args):
- for i in args:
- os.system("sudo 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.
+ def register_capture(cls, cap_name):
+ """ Register a capture in the testclass """
+ # add to the list of captures with current timestamp
+ cls._captures.append((time.time(), cap_name))
+ # filter out from zombies
+ cls._zombie_captures = [(stamp, name)
+ for (stamp, name) in cls._zombie_captures
+ if name != cap_name]
+
@classmethod
def pg_start(cls):
- 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.
+ """ Remove any zombie captures and enable the packet generator """
+ # how long before capture is allowed to be deleted - otherwise vpp
+ # crashes - 100ms seems enough (this shouldn't be needed at all)
+ capture_ttl = 0.1
+ now = time.time()
+ for stamp, cap_name in cls._zombie_captures:
+ wait = stamp + capture_ttl - now
+ if wait > 0:
+ cls.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)
+
+ cls.vapi.cli("trace add pg-input 50") # 50 is maximum
+ cls.vapi.cli('packet-generator enable')
+ cls._zombie_captures = cls._captures
+ cls._captures = []
+
@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.
+ def create_pg_interfaces(cls, interfaces):
+ """
+ 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)
+ setattr(cls, intf.name, intf)
+ result.append(intf)
+ cls.pg_interfaces = result
+ return result
+
@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.
+ def create_loopback_interfaces(cls, interfaces):
+ """
+ Create loopback interfaces.
+
+ :param interfaces: iterable indexes of the interfaces.
+ :returns: List of created interfaces.
+ """
+ result = []
+ for i in interfaces:
+ intf = VppLoInterface(cls, i)
+ 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 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]
+
+ @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
+ """
+ return "%d %d %d %d %d" % (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):
+ """
+ Convert packet payload to _PacketInfo object
+
+ :param payload: packet payload
+
+ :returns: _PacketInfo object containing de-serialized data from payload
+
+ """
numbers = payload.split()
info = _PacketInfo()
info.index = int(numbers[0])
info.src = int(numbers[1])
info.dst = int(numbers[2])
+ info.ip = int(numbers[3])
+ info.proto = int(numbers[4])
return info
- ## @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:
+ 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)
+
+ @classmethod
+ def sleep(cls, timeout, remark=None):
+ if hasattr(cls, 'logger'):
+ cls.logger.debug("Starting sleep for %ss (%s)" % (timeout, remark))
+ before = time.time()
+ time.sleep(timeout)
+ after = time.time()
+ if after - before > 2 * timeout:
+ cls.logger.error("unexpected time.sleep() result - "
+ "slept for %ss instead of ~%ss!" % (
+ after - before, timeout))
+ if hasattr(cls, 'logger'):
+ cls.logger.debug(
+ "Finished sleep (%s) - slept %ss (wanted %ss)" % (
+ remark, after - before, timeout))
+
+ def send_and_assert_no_replies(self, intf, pkts, remark=""):
+ self.vapi.cli("clear trace")
+ intf.add_stream(pkts)
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+ 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()
+ rx = output.get_capture(len(pkts))
+ return rx
+
+
+class TestCasePrinter(object):
+ _shared_state = {}
+
+ def __init__(self):
+ self.__dict__ = self._shared_state
+ if not hasattr(self, "_test_case_set"):
+ self._test_case_set = set()
+
+ def print_test_case_heading_if_first_time(self, case):
+ if case.__class__ not in self._test_case_set:
+ print(double_line_delim)
+ print(colorize(getdoc(case.__class__).splitlines()[0], YELLOW))
+ print(double_line_delim)
+ self._test_case_set.add(case.__class__)
-## 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.
+ """
+ @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.
+ """
+
def __init__(self, stream, descriptions, verbosity):
+ """
+ :param stream File descriptor to store where to report test results.
+ Set to the standard error stream by default.
+ :param descriptions Boolean variable to store information if to use
+ test case descriptions.
+ :param verbosity Integer variable to store required verbosity level.
+ """
unittest.TestResult.__init__(self, stream, descriptions, verbosity)
self.stream = stream
self.descriptions = descriptions
self.verbosity = verbosity
self.result_string = None
- ## @var result_string
- # String variable to store the test case result string.
-
+ self.printer = TestCasePrinter()
- ## 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:
+
+ """
+ if hasattr(test, 'logger'):
+ test.logger.debug("--- addSuccess() %s.%s(%s) called"
+ % (test.__class__.__name__,
+ test._testMethodName,
+ test._testMethodDoc))
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)
+
+ def addSkip(self, test, reason):
+ """
+ Record a test skipped.
+
+ :param test:
+ :param reason:
+
+ """
+ if hasattr(test, 'logger'):
+ test.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)
+
+ def symlink_failed(self, test):
+ logger = None
+ if hasattr(test, 'logger'):
+ logger = test.logger
+ if hasattr(test, 'tempdir'):
+ try:
+ failed_dir = os.getenv('VPP_TEST_FAILED_DIR')
+ link_path = '%s/%s-FAILED' % (failed_dir,
+ test.tempdir.split("/")[-1])
+ if logger:
+ logger.debug("creating a link to the failed test")
+ logger.debug("os.symlink(%s, %s)" %
+ (test.tempdir, link_path))
+ os.symlink(test.tempdir, link_path)
+ except Exception as e:
+ if logger:
+ logger.error(e)
+
+ def send_failure_through_pipe(self, test):
+ if hasattr(self, 'test_framework_failed_pipe'):
+ pipe = self.test_framework_failed_pipe
+ if pipe:
+ pipe.send(test.__class__)
+
def addFailure(self, test, err):
+ """
+ Record a test failed result
+
+ :param test:
+ :param err: error message
+
+ """
+ if hasattr(test, 'logger'):
+ test.logger.debug("--- addFailure() %s.%s(%s) called, err is %s"
+ % (test.__class__.__name__,
+ test._testMethodName,
+ test._testMethodDoc, err))
+ test.logger.debug("formatted exception is:\n%s" %
+ "".join(format_exception(*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).
+ if hasattr(test, 'tempdir'):
+ self.result_string = colorize("FAIL", RED) + \
+ ' [ temp dir used by test case: ' + test.tempdir + ' ]'
+ self.symlink_failed(test)
+ else:
+ self.result_string = colorize("FAIL", RED) + ' [no temp dir]'
+
+ self.send_failure_through_pipe(test)
+
def addError(self, test, err):
+ """
+ Record a test error result
+
+ :param test:
+ :param err: error message
+
+ """
+ if hasattr(test, 'logger'):
+ test.logger.debug("--- addError() %s.%s(%s) called, err is %s"
+ % (test.__class__.__name__,
+ test._testMethodName,
+ test._testMethodDoc, err))
+ test.logger.debug("formatted exception is:\n%s" %
+ "".join(format_exception(*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.
+ if hasattr(test, 'tempdir'):
+ self.result_string = colorize("ERROR", RED) + \
+ ' [ temp dir used by test case: ' + test.tempdir + ' ]'
+ self.symlink_failed(test)
+ else:
+ self.result_string = colorize("ERROR", RED) + ' [no temp dir]'
+
+ self.send_failure_through_pipe(test)
+
def getDescription(self, test):
+ """
+ Get test description
+
+ :param 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)
- ## @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.
+
def startTest(self, test):
+ """
+ Start a test
+
+ :param test:
+
+ """
+ self.printer.print_test_case_heading_if_first_time(test)
unittest.TestResult.startTest(self, test)
if self.verbosity > 0:
- self.stream.writeln("Starting " + self.getDescription(test) + " ...")
- self.stream.writeln("------------------------------------------------------------------")
-
- ## 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.
+ self.stream.writeln(
+ "Starting " + self.getDescription(test) + " ...")
+ self.stream.writeln(single_line_delim)
+
def stopTest(self, test):
+ """
+ Stop a test
+
+ :param test:
+
+ """
unittest.TestResult.stopTest(self, test)
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("%-73s%s" % (self.getDescription(test),
+ self.result_string))
+ self.stream.writeln(single_line_delim)
else:
- self.stream.writeln("%-60s%s" % (self.getDescription(test), self.result_string))
+ self.stream.writeln("%-73s%s" % (self.getDescription(test),
+ self.result_string))
- ## 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):
+ """
+ Print errors from running the test case
+ """
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.
+
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("%s: %s" % (flavour, self.getDescription(test)))
- self.stream.writeln('-' * 70)
+ self.stream.writeln(double_line_delim)
+ self.stream.writeln("%s: %s" %
+ (flavour, self.getDescription(test)))
+ 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 Filter_by_test_option:
+ def __init__(self, filter_file_name, filter_class_name, filter_func_name):
+ self.filter_file_name = filter_file_name
+ self.filter_class_name = filter_class_name
+ self.filter_func_name = filter_func_name
+
+ def __call__(self, file_name, class_name, func_name):
+ if self.filter_file_name and file_name != self.filter_file_name:
+ return False
+ if self.filter_class_name and class_name != self.filter_class_name:
+ return False
+ if self.filter_func_name and func_name != self.filter_func_name:
+ return False
+ return True
+
+
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, failed_pipe=None,
+ stream=sys.stderr, descriptions=True,
+ verbosity=1, failfast=False, buffer=False, resultclass=None):
+ # 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)
+ reporter = KeepAliveReporter()
+ reporter.pipe = keep_alive_pipe
+ # this is super-ugly, but very simple to implement and works as long
+ # as we run only one test at the same time
+ VppTestResult.test_framework_failed_pipe = failed_pipe
+
+ test_option = "TEST"
+
+ def parse_test_option(self):
+ try:
+ f = os.getenv(self.test_option)
+ except:
+ f = None
+ filter_file_name = None
+ filter_class_name = None
+ filter_func_name = None
+ if f:
+ if '.' in f:
+ parts = f.split('.')
+ if len(parts) > 3:
+ raise Exception("Unrecognized %s option: %s" %
+ (self.test_option, f))
+ if len(parts) > 2:
+ if parts[2] not in ('*', ''):
+ filter_func_name = parts[2]
+ if parts[1] not in ('*', ''):
+ filter_class_name = parts[1]
+ if parts[0] not in ('*', ''):
+ if parts[0].startswith('test_'):
+ filter_file_name = parts[0]
+ else:
+ filter_file_name = 'test_%s' % parts[0]
+ else:
+ if f.startswith('test_'):
+ filter_file_name = f
+ else:
+ filter_file_name = 'test_%s' % f
+ return filter_file_name, filter_class_name, filter_func_name
+
+ @staticmethod
+ def filter_tests(tests, filter_cb):
+ result = unittest.suite.TestSuite()
+ for t in tests:
+ if isinstance(t, unittest.suite.TestSuite):
+ # this is a bunch of tests, recursively filter...
+ x = VppTestRunner.filter_tests(t, filter_cb)
+ if x.countTestCases() > 0:
+ result.addTest(x)
+ elif isinstance(t, unittest.TestCase):
+ # this is a single test
+ parts = t.id().split('.')
+ # t.id() for common cases like this:
+ # test_classifier.TestClassifier.test_acl_ip
+ # apply filtering only if it is so
+ if len(parts) == 3:
+ if not filter_cb(parts[0], parts[1], parts[2]):
+ continue
+ result.addTest(t)
+ else:
+ # unexpected object, don't touch it
+ result.addTest(t)
+ return result
+
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
+ print("Running tests using custom test runner") # debug message
+ filter_file, filter_class, filter_func = self.parse_test_option()
+ print("Active filters: file=%s, class=%s, function=%s" % (
+ filter_file, filter_class, filter_func))
+ filter_cb = Filter_by_test_option(
+ filter_file, filter_class, filter_func)
+ filtered = self.filter_tests(test, filter_cb)
+ print("%s out of %s tests match specified filters" % (
+ filtered.countTestCases(), test.countTestCases()))
+ if not running_extended_tests():
+ print("Not running extended tests (some tests will be skipped)")
+ return super(VppTestRunner, self).run(filtered)
+
+
+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