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Diffstat (limited to 'tests/topotests/lib/ltemplate.py')
| -rw-r--r-- | tests/topotests/lib/ltemplate.py | 307 |
1 files changed, 307 insertions, 0 deletions
diff --git a/tests/topotests/lib/ltemplate.py b/tests/topotests/lib/ltemplate.py new file mode 100644 index 0000000..e897a81 --- /dev/null +++ b/tests/topotests/lib/ltemplate.py @@ -0,0 +1,307 @@ +#!/usr/bin/env python +# SPDX-License-Identifier: ISC + +# +# Part of NetDEF Topology Tests +# +# Copyright (c) 2017 by +# Network Device Education Foundation, Inc. ("NetDEF") +# + +""" +ltemplate.py: LabN template for FRR tests. +""" + +import os +import sys +import platform + +import pytest + +# pylint: disable=C0413 +# Import topogen and topotest helpers +from lib import topotest +from lib.topogen import Topogen, TopoRouter, get_topogen +from lib.topolog import logger +from lib.lutil import * + +# Required to instantiate the topology builder class. + +customize = None + + +class LTemplate: + test = None + testdir = None + scriptdir = None + logdir = None + prestarthooksuccess = True + poststarthooksuccess = True + iproute2Ver = None + + def __init__(self, test, testdir): + pathname = os.path.join(testdir, "customize.py") + global customize + if sys.version_info >= (3, 5): + import importlib.util + + spec = importlib.util.spec_from_file_location("customize", pathname) + customize = importlib.util.module_from_spec(spec) + spec.loader.exec_module(customize) + else: + import imp + + customize = imp.load_source("customize", pathname) + self.test = test + self.testdir = testdir + self.scriptdir = testdir + self.logdir = "" + logger.info("LTemplate: " + test) + + def setup_module(self, mod): + "Sets up the pytest environment" + # This function initiates the topology build with Topogen... + tgen = Topogen(customize.build_topo, mod.__name__) + # ... and here it calls Mininet initialization functions. + tgen.start_topology() + + self.logdir = tgen.logdir + + logger.info("Topology started") + try: + self.prestarthooksuccess = customize.ltemplatePreRouterStartHook() + except AttributeError: + # not defined + logger.debug("ltemplatePreRouterStartHook() not defined") + if self.prestarthooksuccess != True: + logger.info("ltemplatePreRouterStartHook() failed, skipping test") + return + + # This is a sample of configuration loading. + router_list = tgen.routers() + + # For all registered routers, load the zebra configuration file + for rname, router in router_list.items(): + logger.info("Setting up %s" % rname) + for rd_val in TopoRouter.RD: + config = os.path.join( + self.testdir, "{}/{}.conf".format(rname, TopoRouter.RD[rd_val]) + ) + prog = os.path.join(tgen.net[rname].daemondir, TopoRouter.RD[rd_val]) + if os.path.exists(config): + if os.path.exists(prog): + router.load_config(rd_val, config) + else: + logger.warning( + "{} not found, but have {}.conf file".format( + prog, TopoRouter.RD[rd_val] + ) + ) + + # After loading the configurations, this function loads configured daemons. + logger.info("Starting routers") + tgen.start_router() + try: + self.poststarthooksuccess = customize.ltemplatePostRouterStartHook() + except AttributeError: + # not defined + logger.debug("ltemplatePostRouterStartHook() not defined") + luStart(baseScriptDir=self.scriptdir, baseLogDir=self.logdir, net=tgen.net) + + +# initialized by ltemplate_start +_lt = None + + +def setup_module(mod): + global _lt + root = os.path.dirname(os.path.dirname(os.path.abspath(__file__))) + test = mod.__name__[: mod.__name__.rfind(".")] + testdir = os.path.join(root, test) + + # don't do this for now as reload didn't work as expected + # fixup sys.path, want test dir there only once + # try: + # sys.path.remove(testdir) + # except ValueError: + # logger.debug(testdir+" not found in original sys.path") + # add testdir + # sys.path.append(testdir) + + # init class + _lt = LTemplate(test, testdir) + _lt.setup_module(mod) + + # drop testdir + # sys.path.remove(testdir) + + +def teardown_module(mod): + global _lt + "Teardown the pytest environment" + tgen = get_topogen() + + if _lt != None and _lt.scriptdir != None and _lt.prestarthooksuccess == True: + luShowResults(logger.info) + print(luFinish()) + + # This function tears down the whole topology. + tgen.stop_topology() + _lt = None + + +def ltemplateTest( + script, SkipIfFailed=True, CallOnFail=None, CheckFuncStr=None, KeepGoing=False +): + global _lt + if _lt == None or _lt.prestarthooksuccess != True: + return + + tgen = get_topogen() + if not os.path.isfile(script): + if not os.path.isfile(os.path.join(_lt.scriptdir, script)): + logger.error("Could not find script file: " + script) + assert "Could not find script file: " + script + logger.info("Starting template test: " + script) + numEntry = luNumFail() + + if SkipIfFailed and tgen.routers_have_failure(): + pytest.skip(tgen.errors) + if numEntry > 0: + if not KeepGoing: + pytest.skip("Have %d errors" % numEntry) + + if CheckFuncStr != None: + check = eval(CheckFuncStr) + if check != True: + pytest.skip("Check function '" + CheckFuncStr + "' returned: " + check) + + if CallOnFail != None: + CallOnFail = eval(CallOnFail) + luInclude(script, CallOnFail) + numFail = luNumFail() - numEntry + if numFail > 0: + luShowFail() + fatal_error = "%d tests failed" % numFail + if not KeepGoing: + assert ( + "scripts/cleanup_all.py failed" == "See summary output above" + ), fatal_error + + +# Memory leak test template +def test_memory_leak(): + "Run the memory leak test and report results." + tgen = get_topogen() + if not tgen.is_memleak_enabled(): + pytest.skip("Memory leak test/report is disabled") + + tgen.report_memory_leaks() + + +class ltemplateRtrCmd: + def __init__(self): + self.resetCounts() + + def doCmd(self, tgen, rtr, cmd, checkstr=None): + logger.info("doCmd: {} {}".format(rtr, cmd)) + output = tgen.net[rtr].cmd(cmd).strip() + if len(output): + self.output += 1 + if checkstr != None: + ret = re.search(checkstr, output) + if ret == None: + self.nomatch += 1 + else: + self.match += 1 + return ret + logger.info("output: " + output) + else: + logger.info("No output") + self.none += 1 + return None + + def resetCounts(self): + self.match = 0 + self.nomatch = 0 + self.output = 0 + self.none = 0 + + def getMatch(self): + return self.match + + def getNoMatch(self): + return self.nomatch + + def getOutput(self): + return self.output + + def getNone(self): + return self.none + + +def ltemplateVersionCheck( + vstr, rname="r1", compstr="<", cli=False, kernel="4.9", iproute2=None, mpls=True +): + tgen = get_topogen() + router = tgen.gears[rname] + + if cli: + logger.info("calling mininet CLI") + tgen.mininet_cli() + logger.info("exited mininet CLI") + + if _lt == None: + ret = "Template not initialized" + return ret + + if _lt.prestarthooksuccess != True: + ret = "ltemplatePreRouterStartHook failed" + return ret + + if _lt.poststarthooksuccess != True: + ret = "ltemplatePostRouterStartHook failed" + return ret + + if mpls == True and tgen.hasmpls != True: + ret = "MPLS not initialized" + return ret + + if kernel != None: + krel = platform.release() + if topotest.version_cmp(krel, kernel) < 0: + ret = "Skipping tests, old kernel ({} < {})".format(krel, kernel) + return ret + + if iproute2 != None: + if _lt.iproute2Ver == None: + # collect/log info on iproute2 + cc = ltemplateRtrCmd() + found = cc.doCmd( + tgen, rname, "apt-cache policy iproute2", r"Installed: ([\d\.]*)" + ) + if found != None: + iproute2Ver = found.group(1) + else: + iproute2Ver = "0-unknown" + logger.info("Have iproute2 version=" + iproute2Ver) + + if topotest.version_cmp(iproute2Ver, iproute2) < 0: + ret = "Skipping tests, old iproute2 ({} < {})".format(iproute2Ver, iproute2) + return ret + + ret = True + try: + if router.has_version(compstr, vstr): + ret = "Skipping tests, old FRR version {} {}".format(compstr, vstr) + return ret + except: + ret = True + + return ret + + +# for testing +if __name__ == "__main__": + args = ["-s"] + sys.argv[1:] + sys.exit(pytest.main(args)) |