tests: replace pycodestyle with black
[vpp.git] / test / test_flowprobe.py
index 5bafd39..6b27179 100644 (file)
@@ -29,17 +29,26 @@ from vpp_papi import VppEnum
 class VppCFLOW(VppObject):
     """CFLOW object for IPFIX exporter and Flowprobe feature"""
 
-    def __init__(self, test, intf='pg2', active=0, passive=0, timeout=100,
-                 mtu=1024, datapath='l2', layer='l2 l3 l4'):
+    def __init__(
+        self,
+        test,
+        intf="pg2",
+        active=0,
+        passive=0,
+        timeout=100,
+        mtu=1024,
+        datapath="l2",
+        layer="l2 l3 l4",
+    ):
         self._test = test
         self._intf = intf
         self._active = active
         if passive == 0 or passive < active:
-            self._passive = active+1
+            self._passive = active + 1
         else:
             self._passive = passive
-        self._datapath = datapath           # l2 ip4 ip6
-        self._collect = layer               # l2 l3 l4
+        self._datapath = datapath  # l2 ip4 ip6
+        self._collect = layer  # l2 l3 l4
         self._timeout = timeout
         self._mtu = mtu
         self._configured = False
@@ -49,18 +58,17 @@ class VppCFLOW(VppObject):
         l2_flag = 0
         l3_flag = 0
         l4_flag = 0
-        if 'l2' in self._collect.lower():
-            l2_flag = (VppEnum.vl_api_flowprobe_record_flags_t.
-                       FLOWPROBE_RECORD_FLAG_L2)
-        if 'l3' in self._collect.lower():
-            l3_flag = (VppEnum.vl_api_flowprobe_record_flags_t.
-                       FLOWPROBE_RECORD_FLAG_L3)
-        if 'l4' in self._collect.lower():
-            l4_flag = (VppEnum.vl_api_flowprobe_record_flags_t.
-                       FLOWPROBE_RECORD_FLAG_L4)
+        if "l2" in self._collect.lower():
+            l2_flag = VppEnum.vl_api_flowprobe_record_flags_t.FLOWPROBE_RECORD_FLAG_L2
+        if "l3" in self._collect.lower():
+            l3_flag = VppEnum.vl_api_flowprobe_record_flags_t.FLOWPROBE_RECORD_FLAG_L3
+        if "l4" in self._collect.lower():
+            l4_flag = VppEnum.vl_api_flowprobe_record_flags_t.FLOWPROBE_RECORD_FLAG_L4
         self._test.vapi.flowprobe_params(
             record_flags=(l2_flag | l3_flag | l4_flag),
-            active_timer=self._active, passive_timer=self._passive)
+            active_timer=self._active,
+            passive_timer=self._passive,
+        )
         self.enable_flowprobe_feature()
         self._test.vapi.cli("ipfix flush")
         self._configured = True
@@ -76,18 +84,21 @@ class VppCFLOW(VppObject):
             collector_address=self._test.pg0.remote_ip4,
             src_address=self._test.pg0.local_ip4,
             path_mtu=self._mtu,
-            template_interval=self._timeout)
+            template_interval=self._timeout,
+        )
 
     def enable_flowprobe_feature(self):
-        self._test.vapi.ppcli("flowprobe feature add-del %s %s" %
-                              (self._intf, self._datapath))
+        self._test.vapi.ppcli(
+            "flowprobe feature add-del %s %s" % (self._intf, self._datapath)
+        )
 
     def disable_exporter(self):
         self._test.vapi.cli("set ipfix exporter collector 0.0.0.0")
 
     def disable_flowprobe_feature(self):
-        self._test.vapi.cli("flowprobe feature add-del %s %s disable" %
-                            (self._intf, self._datapath))
+        self._test.vapi.cli(
+            "flowprobe feature add-del %s %s disable" % (self._intf, self._datapath)
+        )
 
     def object_id(self):
         return "ipfix-collector-%s-%s" % (self._src, self.dst)
@@ -99,8 +110,7 @@ class VppCFLOW(VppObject):
         templates = []
         self._test.assertIn(count, (1, 2, 3))
         for _ in range(count):
-            p = self._test.wait_for_cflow_packet(self._test.collector, 2,
-                                                 timeout)
+            p = self._test.wait_for_cflow_packet(self._test.collector, 2, timeout)
             self._test.assertTrue(p.haslayer(IPFIX))
             if decoder is not None and p.haslayer(Template):
                 templates.append(p[Template].templateID)
@@ -109,7 +119,7 @@ class VppCFLOW(VppObject):
 
 
 class MethodHolder(VppTestCase):
-    """ Flow-per-packet plugin: test L2, IP4, IP6 reporting """
+    """Flow-per-packet plugin: test L2, IP4, IP6 reporting"""
 
     # Test variables
     debug_print = False
@@ -135,9 +145,11 @@ class MethodHolder(VppTestCase):
             # and put interfaces to this BD
             cls.vapi.bridge_domain_add_del(bd_id=1, uu_flood=1, learn=1)
             cls.vapi.sw_interface_set_l2_bridge(
-                rx_sw_if_index=cls.pg1._sw_if_index, bd_id=1)
+                rx_sw_if_index=cls.pg1._sw_if_index, bd_id=1
+            )
             cls.vapi.sw_interface_set_l2_bridge(
-                rx_sw_if_index=cls.pg2._sw_if_index, bd_id=1)
+                rx_sw_if_index=cls.pg2._sw_if_index, bd_id=1
+            )
 
             # Set up all interfaces
             for i in cls.pg_interfaces:
@@ -173,8 +185,9 @@ class MethodHolder(VppTestCase):
     def tearDownClass(cls):
         super(MethodHolder, cls).tearDownClass()
 
-    def create_stream(self, src_if=None, dst_if=None, packets=None,
-                      size=None, ip_ver='v4'):
+    def create_stream(
+        self, src_if=None, dst_if=None, packets=None, size=None, ip_ver="v4"
+    ):
         """Create a packet stream to tickle the plugin
 
         :param VppInterface src_if: Source interface for packet stream
@@ -194,7 +207,7 @@ class MethodHolder(VppTestCase):
             info = self.create_packet_info(src_if, dst_if)
             payload = self.info_to_payload(info)
             p = Ether(src=src_if.remote_mac, dst=src_if.local_mac)
-            if ip_ver == 'v4':
+            if ip_ver == "v4":
                 p /= IP(src=src_if.remote_ip4, dst=dst_if.remote_ip4)
             else:
                 p /= IPv6(src=src_if.remote_ip6, dst=dst_if.remote_ip6)
@@ -226,16 +239,16 @@ class MethodHolder(VppTestCase):
         self.pg_start()
         return dst_if.get_capture(len(self.pkts))
 
-    def verify_cflow_data_detail(self, decoder, capture, cflow,
-                                 data_set={1: 'octets', 2: 'packets'},
-                                 ip_ver='v4'):
+    def verify_cflow_data_detail(
+        self, decoder, capture, cflow, data_set={1: "octets", 2: "packets"}, ip_ver="v4"
+    ):
         if self.debug_print:
             print(capture[0].show())
         if cflow.haslayer(Data):
             data = decoder.decode_data_set(cflow.getlayer(Set))
             if self.debug_print:
                 print(data)
-            if ip_ver == 'v4':
+            if ip_ver == "v4":
                 ip_layer = capture[0][IP]
             else:
                 ip_layer = capture[0][IPv6]
@@ -251,35 +264,31 @@ class MethodHolder(VppTestCase):
                         if field not in record.keys():
                             continue
                         value = data_set[field]
-                        if value == 'octets':
+                        if value == "octets":
                             value = ip_layer.len
-                            if ip_ver == 'v6':
-                                value += 40        # ??? is this correct
-                        elif value == 'packets':
+                            if ip_ver == "v6":
+                                value += 40  # ??? is this correct
+                        elif value == "packets":
                             value = 1
-                        elif value == 'src_ip':
-                            if ip_ver == 'v4':
-                                ip = socket.inet_pton(socket.AF_INET,
-                                                      ip_layer.src)
+                        elif value == "src_ip":
+                            if ip_ver == "v4":
+                                ip = socket.inet_pton(socket.AF_INET, ip_layer.src)
                             else:
-                                ip = socket.inet_pton(socket.AF_INET6,
-                                                      ip_layer.src)
+                                ip = socket.inet_pton(socket.AF_INET6, ip_layer.src)
                             value = int(binascii.hexlify(ip), 16)
-                        elif value == 'dst_ip':
-                            if ip_ver == 'v4':
-                                ip = socket.inet_pton(socket.AF_INET,
-                                                      ip_layer.dst)
+                        elif value == "dst_ip":
+                            if ip_ver == "v4":
+                                ip = socket.inet_pton(socket.AF_INET, ip_layer.dst)
                             else:
-                                ip = socket.inet_pton(socket.AF_INET6,
-                                                      ip_layer.dst)
+                                ip = socket.inet_pton(socket.AF_INET6, ip_layer.dst)
                             value = int(binascii.hexlify(ip), 16)
-                        elif value == 'sport':
+                        elif value == "sport":
                             value = int(capture[0][UDP].sport)
-                        elif value == 'dport':
+                        elif value == "dport":
                             value = int(capture[0][UDP].dport)
-                        self.assertEqual(int(binascii.hexlify(
-                            record[field]), 16),
-                            value)
+                        self.assertEqual(
+                            int(binascii.hexlify(record[field]), 16), value
+                        )
 
     def verify_cflow_data_notimer(self, decoder, capture, cflows):
         idx = 0
@@ -292,14 +301,12 @@ class MethodHolder(VppTestCase):
             for rec in data:
                 p = capture[idx]
                 idx += 1
-                self.assertEqual(p[IP].len, int(
-                    binascii.hexlify(rec[1]), 16))
-                self.assertEqual(1, int(
-                    binascii.hexlify(rec[2]), 16))
+                self.assertEqual(p[IP].len, int(binascii.hexlify(rec[1]), 16))
+                self.assertEqual(1, int(binascii.hexlify(rec[2]), 16))
         self.assertEqual(len(capture), idx)
 
     def wait_for_cflow_packet(self, collector_intf, set_id=2, timeout=1):
-        """ wait for CFLOW packet and verify its correctness
+        """wait for CFLOW packet and verify its correctness
 
         :param timeout: how long to wait
 
@@ -327,7 +334,7 @@ class Flowprobe(MethodHolder):
         super(Flowprobe, cls).tearDownClass()
 
     def test_0001(self):
-        """ timer less than template timeout"""
+        """timer less than template timeout"""
         self.logger.info("FFP_TEST_START_0001")
         self.pg_enable_capture(self.pg_interfaces)
         self.pkts = []
@@ -351,7 +358,7 @@ class Flowprobe(MethodHolder):
         self.logger.info("FFP_TEST_FINISH_0001")
 
     def test_0002(self):
-        """ timer greater than template timeout"""
+        """timer greater than template timeout"""
         self.logger.info("FFP_TEST_START_0002")
         self.pg_enable_capture(self.pg_interfaces)
         self.pkts = []
@@ -384,26 +391,33 @@ class Flowprobe(MethodHolder):
         self.pg_enable_capture(self.pg_interfaces)
         self.pkts = []
 
-        ipfix = VppCFLOW(test=self, intf='pg8', datapath="ip4",
-                         layer='l2 l3 l4', active=2)
+        ipfix = VppCFLOW(
+            test=self, intf="pg8", datapath="ip4", layer="l2 l3 l4", active=2
+        )
         ipfix.add_vpp_config()
 
-        route_9001 = VppIpRoute(self, "9.0.0.0", 24,
-                                [VppRoutePath(self.pg8._remote_hosts[0].ip4,
-                                              self.pg8.sw_if_index)])
+        route_9001 = VppIpRoute(
+            self,
+            "9.0.0.0",
+            24,
+            [VppRoutePath(self.pg8._remote_hosts[0].ip4, self.pg8.sw_if_index)],
+        )
         route_9001.add_vpp_config()
 
         ipfix_decoder = IPFIXDecoder()
         templates = ipfix.verify_templates(ipfix_decoder, count=1)
 
-        self.pkts = [(Ether(dst=self.pg7.local_mac,
-                            src=self.pg7.remote_mac) /
-                      IP(src=self.pg7.remote_ip4, dst="9.0.0.100") /
-                      TCP(sport=1234, dport=4321, flags=80) /
-                      Raw(b'\xa5' * 100))]
+        self.pkts = [
+            (
+                Ether(dst=self.pg7.local_mac, src=self.pg7.remote_mac)
+                / IP(src=self.pg7.remote_ip4, dst="9.0.0.100")
+                / TCP(sport=1234, dport=4321, flags=80)
+                / Raw(b"\xa5" * 100)
+            )
+        ]
 
         nowUTC = int(time.time())
-        nowUNIX = nowUTC+2208988800
+        nowUNIX = nowUTC + 2208988800
         self.send_packets(src_if=self.pg7, dst_if=self.pg8)
 
         cflow = self.wait_for_cflow_packet(self.collector, templates[0], 10)
@@ -435,11 +449,9 @@ class Flowprobe(MethodHolder):
             # ethernet type
             self.assertEqual(int(binascii.hexlify(record[256]), 16), 8)
             # src ip
-            self.assertEqual(inet_ntop(socket.AF_INET, record[8]),
-                             self.pg7.remote_ip4)
+            self.assertEqual(inet_ntop(socket.AF_INET, record[8]), self.pg7.remote_ip4)
             # dst ip
-            self.assertEqual(inet_ntop(socket.AF_INET, record[12]),
-                             "9.0.0.100")
+            self.assertEqual(inet_ntop(socket.AF_INET, record[12]), "9.0.0.100")
             # protocol (TCP)
             self.assertEqual(int(binascii.hexlify(record[4]), 16), 6)
             # src port
@@ -466,11 +478,11 @@ class Datapath(MethodHolder):
         super(Datapath, cls).tearDownClass()
 
     def test_templatesL2(self):
-        """ verify template on L2 datapath"""
+        """verify template on L2 datapath"""
         self.logger.info("FFP_TEST_START_0000")
         self.pg_enable_capture(self.pg_interfaces)
 
-        ipfix = VppCFLOW(test=self, layer='l2')
+        ipfix = VppCFLOW(test=self, layer="l2")
         ipfix.add_vpp_config()
 
         # template packet should arrive immediately
@@ -482,12 +494,12 @@ class Datapath(MethodHolder):
         self.logger.info("FFP_TEST_FINISH_0000")
 
     def test_L2onL2(self):
-        """ L2 data on L2 datapath"""
+        """L2 data on L2 datapath"""
         self.logger.info("FFP_TEST_START_0001")
         self.pg_enable_capture(self.pg_interfaces)
         self.pkts = []
 
-        ipfix = VppCFLOW(test=self, layer='l2')
+        ipfix = VppCFLOW(test=self, layer="l2")
         ipfix.add_vpp_config()
 
         ipfix_decoder = IPFIXDecoder()
@@ -500,20 +512,21 @@ class Datapath(MethodHolder):
         # make sure the one packet we expect actually showed up
         self.vapi.ipfix_flush()
         cflow = self.wait_for_cflow_packet(self.collector, templates[0])
-        self.verify_cflow_data_detail(ipfix_decoder, capture, cflow,
-                                      {2: 'packets', 256: 8})
+        self.verify_cflow_data_detail(
+            ipfix_decoder, capture, cflow, {2: "packets", 256: 8}
+        )
         self.collector.get_capture(2)
 
         ipfix.remove_vpp_config()
         self.logger.info("FFP_TEST_FINISH_0001")
 
     def test_L3onL2(self):
-        """ L3 data on L2 datapath"""
+        """L3 data on L2 datapath"""
         self.logger.info("FFP_TEST_START_0002")
         self.pg_enable_capture(self.pg_interfaces)
         self.pkts = []
 
-        ipfix = VppCFLOW(test=self, layer='l3')
+        ipfix = VppCFLOW(test=self, layer="l3")
         ipfix.add_vpp_config()
 
         ipfix_decoder = IPFIXDecoder()
@@ -526,9 +539,12 @@ class Datapath(MethodHolder):
         # make sure the one packet we expect actually showed up
         self.vapi.ipfix_flush()
         cflow = self.wait_for_cflow_packet(self.collector, templates[0])
-        self.verify_cflow_data_detail(ipfix_decoder, capture, cflow,
-                                      {2: 'packets', 4: 17,
-                                       8: 'src_ip', 12: 'dst_ip'})
+        self.verify_cflow_data_detail(
+            ipfix_decoder,
+            capture,
+            cflow,
+            {2: "packets", 4: 17, 8: "src_ip", 12: "dst_ip"},
+        )
 
         self.collector.get_capture(3)
 
@@ -536,12 +552,12 @@ class Datapath(MethodHolder):
         self.logger.info("FFP_TEST_FINISH_0002")
 
     def test_L4onL2(self):
-        """ L4 data on L2 datapath"""
+        """L4 data on L2 datapath"""
         self.logger.info("FFP_TEST_START_0003")
         self.pg_enable_capture(self.pg_interfaces)
         self.pkts = []
 
-        ipfix = VppCFLOW(test=self, layer='l4')
+        ipfix = VppCFLOW(test=self, layer="l4")
         ipfix.add_vpp_config()
 
         ipfix_decoder = IPFIXDecoder()
@@ -554,8 +570,9 @@ class Datapath(MethodHolder):
         # make sure the one packet we expect actually showed up
         self.vapi.ipfix_flush()
         cflow = self.wait_for_cflow_packet(self.collector, templates[0])
-        self.verify_cflow_data_detail(ipfix_decoder, capture, cflow,
-                                      {2: 'packets', 7: 'sport', 11: 'dport'})
+        self.verify_cflow_data_detail(
+            ipfix_decoder, capture, cflow, {2: "packets", 7: "sport", 11: "dport"}
+        )
 
         self.collector.get_capture(3)
 
@@ -563,12 +580,12 @@ class Datapath(MethodHolder):
         self.logger.info("FFP_TEST_FINISH_0003")
 
     def test_templatesIp4(self):
-        """ verify templates on IP4 datapath"""
+        """verify templates on IP4 datapath"""
         self.logger.info("FFP_TEST_START_0000")
 
         self.pg_enable_capture(self.pg_interfaces)
 
-        ipfix = VppCFLOW(test=self, datapath='ip4')
+        ipfix = VppCFLOW(test=self, datapath="ip4")
         ipfix.add_vpp_config()
 
         # template packet should arrive immediately
@@ -581,12 +598,12 @@ class Datapath(MethodHolder):
         self.logger.info("FFP_TEST_FINISH_0000")
 
     def test_L2onIP4(self):
-        """ L2 data on IP4 datapath"""
+        """L2 data on IP4 datapath"""
         self.logger.info("FFP_TEST_START_0001")
         self.pg_enable_capture(self.pg_interfaces)
         self.pkts = []
 
-        ipfix = VppCFLOW(test=self, intf='pg4', layer='l2', datapath='ip4')
+        ipfix = VppCFLOW(test=self, intf="pg4", layer="l2", datapath="ip4")
         ipfix.add_vpp_config()
 
         ipfix_decoder = IPFIXDecoder()
@@ -599,8 +616,9 @@ class Datapath(MethodHolder):
         # make sure the one packet we expect actually showed up
         self.vapi.ipfix_flush()
         cflow = self.wait_for_cflow_packet(self.collector, templates[0])
-        self.verify_cflow_data_detail(ipfix_decoder, capture, cflow,
-                                      {2: 'packets', 256: 8})
+        self.verify_cflow_data_detail(
+            ipfix_decoder, capture, cflow, {2: "packets", 256: 8}
+        )
 
         # expected two templates and one cflow packet
         self.collector.get_capture(2)
@@ -609,12 +627,12 @@ class Datapath(MethodHolder):
         self.logger.info("FFP_TEST_FINISH_0001")
 
     def test_L3onIP4(self):
-        """ L3 data on IP4 datapath"""
+        """L3 data on IP4 datapath"""
         self.logger.info("FFP_TEST_START_0002")
         self.pg_enable_capture(self.pg_interfaces)
         self.pkts = []
 
-        ipfix = VppCFLOW(test=self, intf='pg4', layer='l3', datapath='ip4')
+        ipfix = VppCFLOW(test=self, intf="pg4", layer="l3", datapath="ip4")
         ipfix.add_vpp_config()
 
         ipfix_decoder = IPFIXDecoder()
@@ -627,9 +645,12 @@ class Datapath(MethodHolder):
         # make sure the one packet we expect actually showed up
         self.vapi.ipfix_flush()
         cflow = self.wait_for_cflow_packet(self.collector, templates[0])
-        self.verify_cflow_data_detail(ipfix_decoder, capture, cflow,
-                                      {1: 'octets', 2: 'packets',
-                                       8: 'src_ip', 12: 'dst_ip'})
+        self.verify_cflow_data_detail(
+            ipfix_decoder,
+            capture,
+            cflow,
+            {1: "octets", 2: "packets", 8: "src_ip", 12: "dst_ip"},
+        )
 
         # expected two templates and one cflow packet
         self.collector.get_capture(2)
@@ -638,12 +659,12 @@ class Datapath(MethodHolder):
         self.logger.info("FFP_TEST_FINISH_0002")
 
     def test_L4onIP4(self):
-        """ L4 data on IP4 datapath"""
+        """L4 data on IP4 datapath"""
         self.logger.info("FFP_TEST_START_0003")
         self.pg_enable_capture(self.pg_interfaces)
         self.pkts = []
 
-        ipfix = VppCFLOW(test=self, intf='pg4', layer='l4', datapath='ip4')
+        ipfix = VppCFLOW(test=self, intf="pg4", layer="l4", datapath="ip4")
         ipfix.add_vpp_config()
 
         ipfix_decoder = IPFIXDecoder()
@@ -656,8 +677,9 @@ class Datapath(MethodHolder):
         # make sure the one packet we expect actually showed up
         self.vapi.ipfix_flush()
         cflow = self.wait_for_cflow_packet(self.collector, templates[0])
-        self.verify_cflow_data_detail(ipfix_decoder, capture, cflow,
-                                      {2: 'packets', 7: 'sport', 11: 'dport'})
+        self.verify_cflow_data_detail(
+            ipfix_decoder, capture, cflow, {2: "packets", 7: "sport", 11: "dport"}
+        )
 
         # expected two templates and one cflow packet
         self.collector.get_capture(2)
@@ -666,11 +688,11 @@ class Datapath(MethodHolder):
         self.logger.info("FFP_TEST_FINISH_0003")
 
     def test_templatesIP6(self):
-        """ verify templates on IP6 datapath"""
+        """verify templates on IP6 datapath"""
         self.logger.info("FFP_TEST_START_0000")
         self.pg_enable_capture(self.pg_interfaces)
 
-        ipfix = VppCFLOW(test=self, datapath='ip6')
+        ipfix = VppCFLOW(test=self, datapath="ip6")
         ipfix.add_vpp_config()
 
         # template packet should arrive immediately
@@ -682,28 +704,27 @@ class Datapath(MethodHolder):
         self.logger.info("FFP_TEST_FINISH_0000")
 
     def test_L2onIP6(self):
-        """ L2 data on IP6 datapath"""
+        """L2 data on IP6 datapath"""
         self.logger.info("FFP_TEST_START_0001")
         self.pg_enable_capture(self.pg_interfaces)
         self.pkts = []
 
-        ipfix = VppCFLOW(test=self, intf='pg6', layer='l2', datapath='ip6')
+        ipfix = VppCFLOW(test=self, intf="pg6", layer="l2", datapath="ip6")
         ipfix.add_vpp_config()
 
         ipfix_decoder = IPFIXDecoder()
         # template packet should arrive immediately
         templates = ipfix.verify_templates(ipfix_decoder, count=1)
 
-        self.create_stream(src_if=self.pg5, dst_if=self.pg6, packets=1,
-                           ip_ver='IPv6')
+        self.create_stream(src_if=self.pg5, dst_if=self.pg6, packets=1, ip_ver="IPv6")
         capture = self.send_packets(src_if=self.pg5, dst_if=self.pg6)
 
         # make sure the one packet we expect actually showed up
         self.vapi.ipfix_flush()
         cflow = self.wait_for_cflow_packet(self.collector, templates[0])
-        self.verify_cflow_data_detail(ipfix_decoder, capture, cflow,
-                                      {2: 'packets', 256: 56710},
-                                      ip_ver='v6')
+        self.verify_cflow_data_detail(
+            ipfix_decoder, capture, cflow, {2: "packets", 256: 56710}, ip_ver="v6"
+        )
 
         # expected two templates and one cflow packet
         self.collector.get_capture(2)
@@ -712,29 +733,31 @@ class Datapath(MethodHolder):
         self.logger.info("FFP_TEST_FINISH_0001")
 
     def test_L3onIP6(self):
-        """ L3 data on IP6 datapath"""
+        """L3 data on IP6 datapath"""
         self.logger.info("FFP_TEST_START_0002")
         self.pg_enable_capture(self.pg_interfaces)
         self.pkts = []
 
-        ipfix = VppCFLOW(test=self, intf='pg6', layer='l3', datapath='ip6')
+        ipfix = VppCFLOW(test=self, intf="pg6", layer="l3", datapath="ip6")
         ipfix.add_vpp_config()
 
         ipfix_decoder = IPFIXDecoder()
         # template packet should arrive immediately
         templates = ipfix.verify_templates(ipfix_decoder, count=1)
 
-        self.create_stream(src_if=self.pg5, dst_if=self.pg6, packets=1,
-                           ip_ver='IPv6')
+        self.create_stream(src_if=self.pg5, dst_if=self.pg6, packets=1, ip_ver="IPv6")
         capture = self.send_packets(src_if=self.pg5, dst_if=self.pg6)
 
         # make sure the one packet we expect actually showed up
         self.vapi.ipfix_flush()
         cflow = self.wait_for_cflow_packet(self.collector, templates[0])
-        self.verify_cflow_data_detail(ipfix_decoder, capture, cflow,
-                                      {2: 'packets',
-                                       27: 'src_ip', 28: 'dst_ip'},
-                                      ip_ver='v6')
+        self.verify_cflow_data_detail(
+            ipfix_decoder,
+            capture,
+            cflow,
+            {2: "packets", 27: "src_ip", 28: "dst_ip"},
+            ip_ver="v6",
+        )
 
         # expected two templates and one cflow packet
         self.collector.get_capture(2)
@@ -743,28 +766,31 @@ class Datapath(MethodHolder):
         self.logger.info("FFP_TEST_FINISH_0002")
 
     def test_L4onIP6(self):
-        """ L4 data on IP6 datapath"""
+        """L4 data on IP6 datapath"""
         self.logger.info("FFP_TEST_START_0003")
         self.pg_enable_capture(self.pg_interfaces)
         self.pkts = []
 
-        ipfix = VppCFLOW(test=self, intf='pg6', layer='l4', datapath='ip6')
+        ipfix = VppCFLOW(test=self, intf="pg6", layer="l4", datapath="ip6")
         ipfix.add_vpp_config()
 
         ipfix_decoder = IPFIXDecoder()
         # template packet should arrive immediately
         templates = ipfix.verify_templates(ipfix_decoder, count=1)
 
-        self.create_stream(src_if=self.pg5, dst_if=self.pg6, packets=1,
-                           ip_ver='IPv6')
+        self.create_stream(src_if=self.pg5, dst_if=self.pg6, packets=1, ip_ver="IPv6")
         capture = self.send_packets(src_if=self.pg5, dst_if=self.pg6)
 
         # make sure the one packet we expect actually showed up
         self.vapi.ipfix_flush()
         cflow = self.wait_for_cflow_packet(self.collector, templates[0])
-        self.verify_cflow_data_detail(ipfix_decoder, capture, cflow,
-                                      {2: 'packets', 7: 'sport', 11: 'dport'},
-                                      ip_ver='v6')
+        self.verify_cflow_data_detail(
+            ipfix_decoder,
+            capture,
+            cflow,
+            {2: "packets", 7: "sport", 11: "dport"},
+            ip_ver="v6",
+        )
 
         # expected two templates and one cflow packet
         self.collector.get_capture(2)
@@ -773,7 +799,7 @@ class Datapath(MethodHolder):
         self.logger.info("FFP_TEST_FINISH_0003")
 
     def test_0001(self):
-        """ no timers, one CFLOW packet, 9 Flows inside"""
+        """no timers, one CFLOW packet, 9 Flows inside"""
         self.logger.info("FFP_TEST_START_0001")
         self.pg_enable_capture(self.pg_interfaces)
         self.pkts = []
@@ -798,7 +824,7 @@ class Datapath(MethodHolder):
         self.logger.info("FFP_TEST_FINISH_0001")
 
     def test_0002(self):
-        """ no timers, two CFLOW packets (mtu=256), 3 Flows in each"""
+        """no timers, two CFLOW packets (mtu=256), 3 Flows in each"""
         self.logger.info("FFP_TEST_START_0002")
         self.pg_enable_capture(self.pg_interfaces)
         self.pkts = []
@@ -817,10 +843,8 @@ class Datapath(MethodHolder):
         # make sure the one packet we expect actually showed up
         cflows = []
         self.vapi.ipfix_flush()
-        cflows.append(self.wait_for_cflow_packet(self.collector,
-                                                 templates[1]))
-        cflows.append(self.wait_for_cflow_packet(self.collector,
-                                                 templates[1]))
+        cflows.append(self.wait_for_cflow_packet(self.collector, templates[1]))
+        cflows.append(self.wait_for_cflow_packet(self.collector, templates[1]))
         self.verify_cflow_data_notimer(ipfix_decoder, capture, cflows)
         self.collector.get_capture(5)
 
@@ -841,7 +865,7 @@ class DisableIPFIX(MethodHolder):
         super(DisableIPFIX, cls).tearDownClass()
 
     def test_0001(self):
-        """ disable IPFIX after first packets"""
+        """disable IPFIX after first packets"""
         self.logger.info("FFP_TEST_START_0001")
         self.pg_enable_capture(self.pg_interfaces)
         self.pkts = []
@@ -889,8 +913,7 @@ class ReenableIPFIX(MethodHolder):
         super(ReenableIPFIX, cls).tearDownClass()
 
     def test_0011(self):
-        """ disable IPFIX after first packets and re-enable after few packets
-        """
+        """disable IPFIX after first packets and re-enable after few packets"""
         self.logger.info("FFP_TEST_START_0001")
         self.pg_enable_capture(self.pg_interfaces)
         self.pkts = []
@@ -957,7 +980,7 @@ class DisableFP(MethodHolder):
         super(DisableFP, cls).tearDownClass()
 
     def test_0001(self):
-        """ disable flowprobe feature after first packets"""
+        """disable flowprobe feature after first packets"""
         self.logger.info("FFP_TEST_START_0001")
         self.pg_enable_capture(self.pg_interfaces)
         self.pkts = []
@@ -1004,8 +1027,8 @@ class ReenableFP(MethodHolder):
         super(ReenableFP, cls).tearDownClass()
 
     def test_0001(self):
-        """ disable flowprobe feature after first packets and re-enable
-        after few packets """
+        """disable flowprobe feature after first packets and re-enable
+        after few packets"""
         self.logger.info("FFP_TEST_START_0001")
         self.pg_enable_capture(self.pg_interfaces)
         self.pkts = []
@@ -1054,5 +1077,5 @@ class ReenableFP(MethodHolder):
         self.logger.info("FFP_TEST_FINISH_0001")
 
 
-if __name__ == '__main__':
+if __name__ == "__main__":
     unittest.main(testRunner=VppTestRunner)