import outer_packages from platform_cmd_link import * import functional_general_test from nose.tools import assert_equal from nose.tools import assert_not_equal from nose.tools import nottest from nose.plugins.attrib import attr from unit_tests.trex_general_test import CTRexScenario from dpkt import pcap import sys import os import subprocess # should be set to run explicitly, not as part of all regression tests @attr('run_on_trex') class CStlBasic_Test(functional_general_test.CGeneralFunctional_Test): def setUp (self): self.test_path = os.path.abspath(os.getcwd()) self.scripts_path = CTRexScenario.scripts_path self.verify_exists(os.path.join(self.scripts_path, "bp-sim-64-debug")) self.stl_sim = os.path.join(self.scripts_path, "automation/trex_control_plane/client/trex_stateless_sim.py") self.verify_exists(self.stl_sim) self.profiles_path = os.path.join(self.scripts_path, "stl/") self.profiles = {} self.profiles['imix_3pkt'] = os.path.join(self.profiles_path, "imix_3pkt.yaml") self.profiles['imix_3pkt_vm'] = os.path.join(self.profiles_path, "imix_3pkt.yaml") self.profiles['random_size'] = os.path.join(self.profiles_path, "udp_rand_size.yaml") self.profiles['random_size_9k'] = os.path.join(self.profiles_path, "udp_rand_size_9k.yaml") self.profiles['imix_tuple_gen'] = os.path.join(self.profiles_path, "imix_1pkt_tuple_gen.yaml") for k, v in self.profiles.iteritems(): self.verify_exists(v) self.valgrind_profiles = [ self.profiles['imix_3pkt_vm'], self.profiles['random_size_9k'], self.profiles['imix_tuple_gen']] self.golden_path = os.path.join(self.test_path,"stl/golden/") os.chdir(self.scripts_path) def tearDown (self): os.chdir(self.test_path) def get_golden (self, name): golden = os.path.join(self.golden_path, name) self.verify_exists(golden) return golden def verify_exists (self, name): if not os.path.exists(name): raise Exception("cannot find '{0}'".format(name)) def compare_caps (self, cap1, cap2, max_diff_sec = 0.01): f1 = open(cap1, 'r') reader1 = pcap.Reader(f1) pkts1 = reader1.readpkts() f2 = open(cap2, 'r') reader2 = pcap.Reader(f2) pkts2 = reader2.readpkts() assert_equal(len(pkts1), len(pkts2)) for pkt1, pkt2, i in zip(pkts1, pkts2, xrange(1, len(pkts1))): ts1 = pkt1[0] ts2 = pkt2[0] if abs(ts1-ts2) > 0.000005: # 5 nsec raise AssertionError("TS error: cap files '{0}', '{1}' differ in cap #{2} - '{3}' vs. '{4}'".format(cap1, cap2, i, ts1, ts2)) if pkt1[1] != pkt2[1]: raise AssertionError("RAW error: cap files '{0}', '{1}' differ in cap #{2}".format(cap1, cap2, i)) def run_sim (self, yaml, output, options = "", silent = False): if output: user_cmd = "-f {0} -o {1} {2}".format(yaml, output, options) else: user_cmd = "-f {0} {1}".format(yaml, options) cmd = "{0} {1} {2}".format(sys.executable, self.stl_sim, user_cmd) if silent: devnull = open('/dev/null', 'w') rc = subprocess.call(cmd, shell = True, stdout = devnull) else: print cmd rc = subprocess.call(cmd, shell = True) return (rc == 0) def golden_run (self, testname, profile, options, silent = False): output_cap = os.path.join("/tmp/", "{0}_test.cap".format(testname)) golden_cap = os.path.join(self.test_path, "stl/golden/{0}_golden.cap".format(testname)) try: rc = self.run_sim(self.profiles[profile], output_cap, options, silent) assert_equal(rc, True) self.compare_caps(output_cap, golden_cap) finally: os.unlink(output_cap) # test for IMIX def test_imix (self): self.golden_run("basic_imix", "imix_3pkt", "-m 50kpps --limit 500 --cores 8", silent = False) def test_vm (self): self.golden_run("basic_imix_vm", "imix_3pkt_vm", "-m 50kpps --limit 500 --cores 8", silent = False) def test_tuple_gen (self): self.golden_run("basic_tuple_gen", "imix_tuple_gen", "-m 50kpps --limit 500 --cores 8", silent = False) # valgrind tests def test_valgrind_various_profiles (self): print "\n" for profile in self.valgrind_profiles: print "\n*** testing profile '{0}' ***\n".format(profile) rc = self.run_sim(profile, output = None, options = "--cores 8 --limit 500 --valgrind", silent = False) assert_equal(rc, True)