diff options
Diffstat (limited to 'test/test_nfvbench.py')
| -rw-r--r-- | test/test_nfvbench.py | 465 |
1 files changed, 81 insertions, 384 deletions
diff --git a/test/test_nfvbench.py b/test/test_nfvbench.py index 4603ae1..b430436 100644 --- a/test/test_nfvbench.py +++ b/test/test_nfvbench.py @@ -13,259 +13,34 @@ # License for the specific language governing permissions and limitations # under the License. # +from mock_trex import no_op + import json import logging -import os import sys +from attrdict import AttrDict +from mock import patch import pytest -from attrdict import AttrDict from nfvbench.config import config_loads from nfvbench.credentials import Credentials from nfvbench.fluentd import FluentLogHandler import nfvbench.log -from nfvbench.network import Interface -from nfvbench.network import Network -from nfvbench.specs import ChainType -from nfvbench.specs import Encaps +import nfvbench.nfvbench +from nfvbench.traffic_client import Device +from nfvbench.traffic_client import GeneratorConfig +from nfvbench.traffic_client import IpBlock +from nfvbench.traffic_client import TrafficClient import nfvbench.traffic_gen.traffic_utils as traffic_utils -__location__ = os.path.realpath(os.path.join(os.getcwd(), - os.path.dirname(__file__))) - - -@pytest.fixture -def openstack_vxlan_spec(): - return AttrDict( - { - 'openstack': AttrDict({ - 'vswitch': "VTS", - 'encaps': Encaps.VxLAN}), - 'run_spec': AttrDict({ - 'use_vpp': True - }) - } - ) - - -# ========================================================================= -# PVP Chain tests -# ========================================================================= - -def test_chain_interface(): - iface = Interface('testname', 'vpp', tx_packets=1234, rx_packets=4321) - assert iface.name == 'testname' - assert iface.device == 'vpp' - assert iface.get_packet_count('tx') == 1234 - assert iface.get_packet_count('rx') == 4321 - assert iface.get_packet_count('wrong_key') == 0 - - -# pylint: disable=redefined-outer-name -@pytest.fixture(scope='session') -def iface1(): - return Interface('iface1', 'trex', tx_packets=10000, rx_packets=1234) - - -@pytest.fixture(scope='session') -def iface2(): - return Interface('iface2', 'n9k', tx_packets=1234, rx_packets=9901) - - -@pytest.fixture(scope='session') -def iface3(): - return Interface('iface3', 'n9k', tx_packets=9900, rx_packets=1234) +# just to get rid of the unused function warning +no_op() -@pytest.fixture(scope='session') -def iface4(): - return Interface('iface4', 'vpp', tx_packets=1234, rx_packets=9801) - - -@pytest.fixture(scope='session') -def net1(iface1, iface2, iface3, iface4): - return Network([iface1, iface2, iface3, iface4], reverse=False) - - -@pytest.fixture(scope='session') -def net2(iface1, iface2, iface3): - return Network([iface1, iface2, iface3], reverse=True) - - -def test_chain_network(net1, net2, iface1, iface2, iface3, iface4): - assert [iface1, iface2, iface3, iface4] == net1.get_interfaces() - assert [iface3, iface2, iface1] == net2.get_interfaces() - net2.add_interface(iface4) - assert [iface4, iface3, iface2, iface1] == net2.get_interfaces() - - -# pylint: enable=redefined-outer-name - -# pylint: disable=pointless-string-statement -""" -def test_chain_analysis(net1, monkeypatch, openstack_vxlan_spec): - def mock_empty(self, *args, **kwargs): - pass - - monkeypatch.setattr(ServiceChain, '_setup', mock_empty) - - f = ServiceChain(AttrDict({'service_chain': 'DUMMY'}), [], {'tor': {}}, openstack_vxlan_spec, - lambda x, y, z: None) - result = f.get_analysis([net1]) - assert result[1]['packet_drop_count'] == 99 - assert result[1]['packet_drop_percentage'] == 0.99 - assert result[2]['packet_drop_count'] == 1 - assert result[2]['packet_drop_percentage'] == 0.01 - assert result[3]['packet_drop_count'] == 99 - assert result[3]['packet_drop_percentage'] == 0.99 - - net1.reverse = True - result = f.get_analysis([net1]) - assert result[1]['packet_drop_count'] == 0 - assert result[1]['packet_drop_percentage'] == 0.0 - assert result[2]['packet_drop_count'] == 0 - assert result[2]['packet_drop_percentage'] == 0.0 - assert result[3]['packet_drop_count'] == 0 - assert result[3]['packet_drop_percentage'] == 0.0 - - -@pytest.fixture -def pvp_chain(monkeypatch, openstack_vxlan_spec): - tor_vni1 = Interface('vni-4097', 'n9k', 50, 77) - vsw_vni1 = Interface('vxlan_tunnel0', 'vpp', 77, 48) - vsw_vif1 = Interface('VirtualEthernet0/0/2', 'vpp', 48, 77) - vsw_vif2 = Interface('VirtualEthernet0/0/3', 'vpp', 77, 47) - vsw_vni2 = Interface('vxlan_tunnel1', 'vpp', 43, 77) - tor_vni2 = Interface('vni-4098', 'n9k', 77, 40) - - def mock_init(self, *args, **kwargs): - self.vni_ports = [4097, 4098] - self.specs = openstack_vxlan_spec - self.clients = { - 'vpp': AttrDict({ - 'set_interface_counters': lambda: None, - }) - } - self.worker = AttrDict({ - 'run': lambda: None, - }) - - def mock_empty(self, *args, **kwargs): - pass - - def mock_get_network(self, traffic_port, vni_id, reverse=False): - if vni_id == 0: - return Network([tor_vni1, vsw_vni1, vsw_vif1], reverse) - else: - return Network([tor_vni2, vsw_vni2, vsw_vif2], reverse) - - def mock_get_data(self): - return {} - - monkeypatch.setattr(PVPChain, '_get_network', mock_get_network) - monkeypatch.setattr(PVPChain, '_get_data', mock_get_data) - monkeypatch.setattr(PVPChain, '_setup', mock_empty) - monkeypatch.setattr(VxLANWorker, '_clear_interfaces', mock_empty) - monkeypatch.setattr(PVPChain, '_generate_traffic', mock_empty) - monkeypatch.setattr(PVPChain, '__init__', mock_init) - return PVPChain(None, None, {'vm': None, 'vpp': None, 'tor': None, 'traffic': None}, None) - - -def test_pvp_chain_run(pvp_chain): - result = pvp_chain.run() - expected_result = { - 'raw_data': {}, - 'stats': None, - 'packet_analysis': { - 'direction-forward': [ - OrderedDict([ - ('interface', 'vni-4097'), - ('device', 'n9k'), - ('packet_count', 50) - ]), - OrderedDict([ - ('interface', 'vxlan_tunnel0'), - ('device', 'vpp'), - ('packet_count', 48), - ('packet_drop_count', 2), - ('packet_drop_percentage', 4.0) - ]), - OrderedDict([ - ('interface', 'VirtualEthernet0/0/2'), - ('device', 'vpp'), - ('packet_count', 48), - ('packet_drop_count', 0), - ('packet_drop_percentage', 0.0) - ]), - OrderedDict([ - ('interface', 'VirtualEthernet0/0/3'), - ('device', 'vpp'), - ('packet_count', 47), - ('packet_drop_count', 1), - ('packet_drop_percentage', 2.0) - ]), - OrderedDict([ - ('interface', 'vxlan_tunnel1'), - ('device', 'vpp'), - ('packet_count', 43), - ('packet_drop_count', 4), - ('packet_drop_percentage', 8.0) - ]), - OrderedDict([ - ('interface', 'vni-4098'), - ('device', 'n9k'), - ('packet_count', 40), - ('packet_drop_count', 3), - ('packet_drop_percentage', 6.0) - ]) - ], - 'direction-reverse': [ - OrderedDict([ - ('interface', 'vni-4098'), - ('device', 'n9k'), - ('packet_count', 77) - ]), - OrderedDict([ - ('interface', 'vxlan_tunnel1'), - ('device', 'vpp'), - ('packet_count', 77), - ('packet_drop_count', 0), - ('packet_drop_percentage', 0.0) - ]), - OrderedDict([ - ('interface', 'VirtualEthernet0/0/3'), - ('device', 'vpp'), - ('packet_count', 77), - ('packet_drop_count', 0), - ('packet_drop_percentage', 0.0) - ]), - OrderedDict([ - ('interface', 'VirtualEthernet0/0/2'), - ('device', 'vpp'), - ('packet_count', 77), - ('packet_drop_count', 0), - ('packet_drop_percentage', 0.0) - ]), - OrderedDict([ - ('interface', 'vxlan_tunnel0'), - ('device', 'vpp'), - ('packet_count', 77), - ('packet_drop_count', 0), - ('packet_drop_percentage', 0.0) - ]), - OrderedDict([ - ('interface', 'vni-4097'), - ('device', 'n9k'), - ('packet_count', 77), - ('packet_drop_count', 0), - ('packet_drop_percentage', 0.0) - ]) - ] - } - } - assert result == expected_result -""" +def setup_module(module): + """Enable log.""" + nfvbench.log.setup(mute_stdout=True) # ========================================================================= # Traffic client tests @@ -298,7 +73,6 @@ def test_parse_rate_str(): return True else: return False - return False assert should_raise_error('101') @@ -326,12 +100,13 @@ def test_rate_conversion(): assert traffic_utils.pps_to_bps(31.6066319896, 1518) == pytest.approx(388888) assert traffic_utils.pps_to_bps(3225895.85831, 340.3) == pytest.approx(9298322222) + # pps at 10Gbps line rate for 64 byte frames LR_64B_PPS = 14880952 LR_1518B_PPS = 812743 def assert_equivalence(reference, value, allowance_pct=1): - '''Asserts if a value is equivalent to a reference value with given margin + """Assert if a value is equivalent to a reference value with given margin. :param float reference: reference value to compare to :param float value: value to compare to reference @@ -340,7 +115,7 @@ def assert_equivalence(reference, value, allowance_pct=1): 1 : must be equal within 1% of the reference value ... 100: always true - ''' + """ if reference == 0: assert value == 0 else: @@ -359,38 +134,10 @@ def test_load_from_rate(): avg_frame_size=1518, line_rate='20Gbps')) -""" -@pytest.fixture -def traffic_client(monkeypatch): - - def mock_init(self, *args, **kwargs): - self.run_config = { - 'bidirectional': False, - 'l2frame_size': '64', - 'duration_sec': 30, - 'rates': [{'rate_percent': '10'}, {'rate_pps': '1'}] - } - - def mock_modify_load(self, load): - self.run_config['rates'][0] = {'rate_percent': str(load)} - self.current_load = load - - monkeypatch.setattr(TrafficClient, '__init__', mock_init) - monkeypatch.setattr(TrafficClient, 'modify_load', mock_modify_load) - - return TrafficClient() -""" - - -# pylint: enable=pointless-string-statement - # ========================================================================= # Other tests # ========================================================================= -def setup_module(module): - nfvbench.log.setup(mute_stdout=True) - def test_no_credentials(): cred = Credentials('/completely/wrong/path/openrc', None, False) if cred.rc_auth_url: @@ -399,36 +146,6 @@ def test_no_credentials(): else: assert True - -# Because trex_stl_lib may not be installed when running unit test -# nfvbench.traffic_client will try to import STLError: -# from trex_stl_lib.api import STLError -# will raise ImportError: No module named trex_stl_lib.api -try: - import trex_stl_lib.api - - assert trex_stl_lib.api -except ImportError: - # Make up a trex_stl_lib.api.STLError class - class STLError(Exception): - pass - - - from types import ModuleType - - stl_lib_mod = ModuleType('trex_stl_lib') - sys.modules['trex_stl_lib'] = stl_lib_mod - api_mod = ModuleType('trex_stl_lib.api') - stl_lib_mod.api = api_mod - sys.modules['trex_stl_lib.api'] = api_mod - api_mod.STLError = STLError - -# pylint: disable=wrong-import-position,ungrouped-imports -from nfvbench.traffic_client import Device -from nfvbench.traffic_client import IpBlock -from nfvbench.traffic_client import TrafficClient -from nfvbench.traffic_client import TrafficGeneratorFactory - def test_ip_block(): ipb = IpBlock('10.0.0.0', '0.0.0.1', 256) assert ipb.get_ip() == '10.0.0.0' @@ -444,70 +161,34 @@ def test_ip_block(): with pytest.raises(IndexError): ipb.get_ip(256) - -def check_config(configs, cc, fc, src_ip, dst_ip, step_ip): - '''Verify that the range configs for each chain have adjacent IP ranges - of the right size and without holes between chains - ''' - step = Device.ip_to_int(step_ip) +def check_stream_configs(gen_config): + """Verify that the range for each chain have adjacent IP ranges without holes between chains.""" + config = gen_config.config + tgc = config['traffic_generator'] + step = Device.ip_to_int(tgc['ip_addrs_step']) cfc = 0 - sip = Device.ip_to_int(src_ip) - dip = Device.ip_to_int(dst_ip) - for index in range(cc): - config = configs[index] - assert config['ip_src_count'] == config['ip_dst_count'] - assert Device.ip_to_int(config['ip_src_addr']) == sip - assert Device.ip_to_int(config['ip_dst_addr']) == dip - count = config['ip_src_count'] + sip = Device.ip_to_int(tgc['ip_addrs'][0].split('/')[0]) + dip = Device.ip_to_int(tgc['ip_addrs'][1].split('/')[0]) + stream_configs = gen_config.devices[0].get_stream_configs() + for index in range(config['service_chain_count']): + stream_cfg = stream_configs[index] + assert stream_cfg['ip_src_count'] == stream_cfg['ip_dst_count'] + assert Device.ip_to_int(stream_cfg['ip_src_addr']) == sip + assert Device.ip_to_int(stream_cfg['ip_dst_addr']) == dip + count = stream_cfg['ip_src_count'] cfc += count sip += count * step dip += count * step - assert cfc == fc - - -def create_device(fc, cc, ip, gip, tggip, step_ip, mac): - return Device(0, 0, flow_count=fc, chain_count=cc, ip=ip, gateway_ip=gip, tg_gateway_ip=tggip, - ip_addrs_step=step_ip, - tg_gateway_ip_addrs_step=step_ip, - gateway_ip_addrs_step=step_ip, - dst_mac=mac) - - -def check_device_flow_config(step_ip): - fc = 99999 - cc = 10 - ip0 = '10.0.0.0' - ip1 = '20.0.0.0' - tggip = '50.0.0.0' - gip = '60.0.0.0' - mac = ['00:11:22:33:44:55'] * cc - dev0 = create_device(fc, cc, ip0, gip, tggip, step_ip, mac) - dev1 = create_device(fc, cc, ip1, gip, tggip, step_ip, mac) - dev0.set_destination(dev1) - configs = dev0.get_stream_configs(ChainType.EXT) - check_config(configs, cc, fc, ip0, ip1, step_ip) + assert cfc == int(config['flow_count'] / 2) +def _check_device_flow_config(step_ip): + config = _get_dummy_tg_config('PVP', '1Mpps', scc=10, fc=99999, step_ip=step_ip) + gen_config = GeneratorConfig(config) + check_stream_configs(gen_config) def test_device_flow_config(): - check_device_flow_config('0.0.0.1') - check_device_flow_config('0.0.0.2') - - -def test_device_ip_range(): - def ip_range_overlaps(ip0, ip1, flows): - tggip = '50.0.0.0' - gip = '60.0.0.0' - mac = ['00:11:22:33:44:55'] * 10 - dev0 = create_device(flows, 10, ip0, gip, tggip, '0.0.0.1', mac) - dev1 = create_device(flows, 10, ip1, gip, tggip, '0.0.0.1', mac) - dev0.set_destination(dev1) - return dev0.ip_range_overlaps() - - assert not ip_range_overlaps('10.0.0.0', '20.0.0.0', 10000) - assert ip_range_overlaps('10.0.0.0', '10.0.1.0', 10000) - assert ip_range_overlaps('10.0.0.0', '10.0.1.0', 257) - assert ip_range_overlaps('10.0.1.0', '10.0.0.0', 257) - + _check_device_flow_config('0.0.0.1') + _check_device_flow_config('0.0.0.2') def test_config(): refcfg = {1: 100, 2: {21: 100, 22: 200}, 3: None} @@ -596,7 +277,8 @@ def assert_ndr_pdr(stats, ndr, ndr_dr, pdr, pdr_dr): assert_equivalence(pdr, stats['pdr']['rate_percent']) assert_equivalence(pdr_dr, stats['pdr']['stats']['overall']['drop_percentage']) -def get_dummy_tg_config(chain_type, rate): +def _get_dummy_tg_config(chain_type, rate, scc=1, fc=10, step_ip='0.0.0.1', + ip0='10.0.0.0/8', ip1='20.0.0.0/8'): return AttrDict({ 'traffic_generator': {'host_name': 'nfvbench_tg', 'default_profile': 'dummy', @@ -606,19 +288,23 @@ def get_dummy_tg_config(chain_type, rate): 'intf_speed': '10Gbps', 'interfaces': [{'port': 0, 'pci': '0.0'}, {'port': 1, 'pci': '0.0'}]}], - 'ip_addrs_step': '0.0.0.1', - 'ip_addrs': ['10.0.0.0/8', '20.0.0.0/8'], + 'ip_addrs_step': step_ip, + 'ip_addrs': [ip0, ip1], 'tg_gateway_ip_addrs': ['1.1.0.100', '2.2.0.100'], - 'tg_gateway_ip_addrs_step': '0.0.0.1', + 'tg_gateway_ip_addrs_step': step_ip, 'gateway_ip_addrs': ['1.1.0.2', '2.2.0.2'], - 'gateway_ip_addrs_step': '0.0.0.1', + 'gateway_ip_addrs_step': step_ip, 'mac_addrs_left': None, 'mac_addrs_right': None, 'udp_src_port': None, 'udp_dst_port': None}, + 'traffic': {'profile': 'profile_64', + 'bidirectional': True}, + 'traffic_profile': [{'name': 'profile_64', 'l2frame_size': ['64']}], + 'generator_profile': None, 'service_chain': chain_type, - 'service_chain_count': 1, - 'flow_count': 10, + 'service_chain_count': scc, + 'flow_count': fc, 'vlan_tagging': True, 'no_arp': False, 'duration_sec': 1, @@ -631,23 +317,22 @@ def get_dummy_tg_config(chain_type, rate): 'l2_loopback': False }) -def get_traffic_client(): - config = get_dummy_tg_config('PVP', 'ndr_pdr') +def _get_traffic_client(): + config = _get_dummy_tg_config('PVP', 'ndr_pdr') config['ndr_run'] = True config['pdr_run'] = True config['generator_profile'] = 'dummy' config['single_run'] = False - generator_factory = TrafficGeneratorFactory(config) - config.generator_config = generator_factory.get_generator_config(config.generator_profile) - traffic_client = TrafficClient(config, skip_sleep=True) + traffic_client = TrafficClient(config) traffic_client.start_traffic_generator() traffic_client.set_traffic('64', True) return traffic_client +@patch.object(TrafficClient, 'skip_sleep', lambda x: True) def test_ndr_at_lr(): - traffic_client = get_traffic_client() + """Test NDR at line rate.""" + traffic_client = _get_traffic_client() tg = traffic_client.gen - # this is a perfect sut with no loss at LR tg.set_response_curve(lr_dr=0, ndr=100, max_actual_tx=100, max_11_tx=100) # tx packets should be line rate for 64B and no drops... @@ -655,16 +340,20 @@ def test_ndr_at_lr(): # NDR and PDR should be at 100% traffic_client.ensure_end_to_end() results = traffic_client.get_ndr_and_pdr() - assert_ndr_pdr(results, 200.0, 0.0, 200.0, 0.0) +@patch.object(TrafficClient, 'skip_sleep', lambda x: True) def test_ndr_at_50(): - traffic_client = get_traffic_client() + """Test NDR at 50% line rate. + + This is a sut with an NDR of 50% and linear drop rate after NDR up to 20% drops at LR + (meaning that if you send 100% TX, you will only receive 80% RX) + the tg requested TX/actual TX ratio is up to 50%, after 50% + is linear up 80% actuak TX when requesting 100% + """ + traffic_client = _get_traffic_client() tg = traffic_client.gen - # this is a sut with an NDR of 50% and linear drop rate after NDR up to 20% drops at LR - # (meaning that if you send 100% TX, you will only receive 80% RX) - # the tg requested TX/actual TX ratio is 1up to 50%, after 50% - # is linear up 80% actuak TX when requesting 100% + tg.set_response_curve(lr_dr=20, ndr=50, max_actual_tx=80, max_11_tx=50) # tx packets should be half line rate for 64B and no drops... assert tg.get_tx_pps_dropped_pps(50) == (LR_64B_PPS / 2, 0) @@ -674,12 +363,16 @@ def test_ndr_at_50(): results = traffic_client.get_ndr_and_pdr() assert_ndr_pdr(results, 100.0, 0.0, 100.781, 0.09374) +@patch.object(TrafficClient, 'skip_sleep', lambda x: True) def test_ndr_pdr_low_cpu(): - traffic_client = get_traffic_client() + """Test NDR and PDR with too low cpu. + + This test is for the case where the TG is underpowered and cannot send fast enough for the NDR + true NDR=40%, actual TX at 50% = 30%, actual measured DR is 0% + The ndr/pdr should bail out with a warning and a best effort measured NDR of 30% + """ + traffic_client = _get_traffic_client() tg = traffic_client.gen - # This test is for the case where the TG is underpowered and cannot send fast enough for the NDR - # true NDR=40%, actual TX at 50% = 30%, actual measured DR is 0% - # The ndr/pdr should bail out with a warning and a best effort measured NDR of 30% tg.set_response_curve(lr_dr=50, ndr=40, max_actual_tx=60, max_11_tx=0) # tx packets should be 30% at requested half line rate for 64B and no drops... assert tg.get_tx_pps_dropped_pps(50) == (int(LR_64B_PPS * 0.3), 0) @@ -689,11 +382,15 @@ def test_ndr_pdr_low_cpu(): # pp = pprint.PrettyPrinter(indent=4) # pp.pprint(results) -import nfvbench.nfvbench - +@patch.object(TrafficClient, 'skip_sleep', lambda x: True) def test_no_openstack(): - config = get_dummy_tg_config('EXT', '1000pps') + """Test nfvbench using main.""" + config = _get_dummy_tg_config('EXT', '1000pps') config.openrc_file = None + config.vlans = [[100], [200]] + config['traffic_generator']['mac_addrs_left'] = ['00:00:00:00:00:00'] + config['traffic_generator']['mac_addrs_right'] = ['00:00:00:00:01:00'] + del config['generator_profile'] old_argv = sys.argv sys.argv = [old_argv[0], '-c', json.dumps(config)] nfvbench.nfvbench.main() |