#!/usr/bin/env python
""" Vpp VCL tests """
import unittest
import os
import signal
from framework import VppTestCase, VppTestRunner, Worker
from vpp_ip_route import VppIpTable, VppIpRoute, VppRoutePath
class VclAppWorker(Worker):
""" VCL Test Application Worker """
def __init__(self, appname, args, logger, env={}):
var = "VPP_TEST_BUILD_DIR"
build_dir = os.getenv(var, None)
if build_dir is None:
raise Exception("Environment variable `%s' not set" % var)
vcl_lib_dir = "%s/vpp/.libs" % build_dir
app = "%s/%s" % (vcl_lib_dir, appname)
if not os.path.isfile(app):
app = "%s/vpp/%s" % (build_dir, appname)
env.update({'LD_PRELOAD':
"%s/libvcl_ldpreload.so.0.0.0" % vcl_lib_dir})
self.args = [app] + args
super(VclAppWorker, self).__init__(self.args, logger, env)
class VclTestCase(VppTestCase):
""" VCL Test Class """
def __init__(self, methodName):
self.server_addr = "127.0.0.1"
self.server_port = "22000"
self.timeout = 3
self.echo_phrase = "Hello, world! Jenny is a friend of mine."
super(VclTestCase, self).__init__(methodName)
def cut_thru_setup(self):
self.vapi.session_enable_disable(is_enabled=1)
def cut_thru_tear_down(self):
self.vapi.session_enable_disable(is_enabled=0)
def cut_thru_test(self, server_app, client_app, client_args):
self.env = {'VCL_API_PREFIX': self.shm_prefix,
'VCL_APP_SCOPE_LOCAL': "true"}
worker_server = VclAppWorker(server_app, [self.server_port],
self.logger, self.env)
worker_server.start()
self.sleep(0.2)
worker_client = VclAppWorker(client_app, client_args,
self.logger, self.env)
worker_client.start()
worker_client.join(self.timeout)
self.validateResults(worker_client, worker_server, self.timeout)
def thru_host_stack_setup(self):
self.vapi.session_enable_disable(is_enabled=1)
self.create_loopback_interfaces(range(2))
table_id = 0
for i in self.lo_interfaces:
i.admin_up()
if table_id != 0:
tbl = VppIpTable(self, table_id)
tbl.add_vpp_config()
i.set_table_ip4(table_id)
i.config_ip4()
table_id += 1
# Configure namespaces
self.vapi.app_namespace_add(namespace_id="0", secret=1234,
sw_if_index=self.loop0.sw_if_index)
self.vapi.app_namespace_add(namespace_id="1", secret=5678,
sw_if_index=self.loop1.sw_if_index)
# Add inter-table routes
ip_t01 = VppIpRoute(self, self.loop1.local_ip4, 32,
[VppRoutePath("0.0.0.0",
0xffffffff,
nh_table_id=1)])
ip_t10 = VppIpRoute(self, self.loop0.local_ip4, 32,
[VppRoutePath("0.0.0.0",
0xffffffff,
nh_table_id=0)], table_id=1)
ip_t01.add_vpp_config()
ip_t10.add_vpp_config()
def thru_host_stack_tear_down(self):
for i in self.lo_interfaces:
i.unconfig_ip4()
i.set_table_ip4(0)
i.admin_down()
self.vapi.session_enable_disable(is_enabled=0)
def thru_host_stack_test(self, server_app, client_app, client_args):
self.env = {'VCL_API_PREFIX': self.shm_prefix,
'VCL_APP_SCOPE_GLOBAL': "true",
'VCL_APP_NAMESPACE_ID': "0",
'VCL_APP_NAMESPACE_SECRET': "1234"}
worker_server = VclAppWorker(server_app, [self.server_port],
self.logger, self.env)
worker_server.start()
self.sleep(0.2)
self.env.update({'VCL_APP_NAMESPACE_ID': "1",
'VCL_APP_NAMESPACE_SECRET': "5678"})
worker_client = VclAppWorker(client_app, client_args,
self.logger, self.env)
worker_client.start()
worker_client.join(self.timeout)
self.validateResults(worker_client, worker_server, self.timeout)
def validateResults(self, worker_client, worker_server, timeout):
self.logger.info("Client worker result is `%s'" % worker_client.result)
error = False
if worker_client.result is None:
try:
error = True
self.logger.error(
"Timeout (%ss)! Killing client worker process" % timeout)
os.killpg(os.getpgid(worker_client.process.pid),
signal.SIGTERM)
worker_client.join()
except:
self.logger.debug(
"Couldn't kill client worker process")
raise
if error:
os.killpg(os.getpgid(worker_server.process.pid), signal.SIGTERM)
worker_server.join()
raise Exception(
"Timeout! Client worker did not finish in %ss" % timeout)
self.assert_equal(worker_client.result, 0, "Binary test return code")
class VCLCutThruTestCase(VclTestCase):
""" VCL Cut Thru Tests """
def setUp(self):
super(VCLCutThruTestCase, self).setUp()
self.cut_thru_setup()
self.client_echo_test_args = [self.server_addr, self.server_port,
"-E", self.echo_phrase, "-X"]
def tearDown(self):
self.cut_thru_tear_down()
super(VCLCutThruTestCase, self).tearDown()
def test_ldp_cut_thru_echo(self):
""" run LDP cut thru echo test """
self.cut_thru_test("sock_test_server", "sock_test_client",
self.client_echo_test_args)
def test_vcl_cut_thru_echo(self):
""" run VCL cut thru echo test """
self.cut_thru_test("vcl_test_server", "vcl_test_client",
self.client_echo_test_args)
class VCLThruHostStackTestCase(VclTestCase):
""" VCL Thru Host Stack Tests """
def setUp(self):
super(VCLThruHostStackTestCase, self).setUp()
self.thru_host_stack_setup()
self.client_echo_test_args = [self.loop0.local_ip4, self.server_port,
"-E", self.echo_phrase, "-X"]
def tearDown(self):
self.thru_host_stack_tear_down()
super(VCLThruHostStackTestCase, self).tearDown()
def test_ldp_thru_host_stack_echo(self):
""" run LDP thru host stack echo test """
self.thru_host_stack_test("sock_test_server", "sock_test_client",
self.client_echo_test_args)
# TBD: Remove this when VPP crash is fixed.
self.thru_host_stack_test("vcl_test_server", "vcl_test_client",
self.client_echo_test_args)
def test_vcl_thru_host_stack_echo(self):
""" run VCL thru host stack echo test """
# TBD: Enable this when VPP crash is fixed.
# self.thru_host_stack_test("vcl_test_server", "vcl_test_client",
# self.client_echo_test_args)
if __name__ == '__main__':
unittest.main(testRunner=VppTestRunner)
