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tests: replace pycodestyle with black
[vpp.git] / test / test_dslite.py
diff --git a/test/test_dslite.py b/test/test_dslite.py
index 912ae17..cd3482b 100644 (file)
--- a/test/test_dslite.py
+++ b/test/test_dslite.py
@@ -11,8 +11,15 @@ from framework import VppTestCase, VppTestRunner
 import scapy.compat
 from scapy.layers.inet import IP, TCP, UDP, ICMP
 from scapy.layers.inet import IPerror, TCPerror, UDPerror, ICMPerror
 import scapy.compat
 from scapy.layers.inet import IP, TCP, UDP, ICMP
 from scapy.layers.inet import IPerror, TCPerror, UDPerror, ICMPerror
-from scapy.layers.inet6 import IPv6, ICMPv6EchoRequest, ICMPv6EchoReply, \
-    ICMPv6ND_NS, ICMPv6ND_NA, ICMPv6NDOptDstLLAddr, fragment6
+from scapy.layers.inet6 import (
+    IPv6,
+    ICMPv6EchoRequest,
+    ICMPv6EchoReply,
+    ICMPv6ND_NS,
+    ICMPv6ND_NA,
+    ICMPv6NDOptDstLLAddr,
+    fragment6,
+)
 from scapy.layers.inet6 import ICMPv6DestUnreach, IPerror6, IPv6ExtHdrFragment
 from scapy.layers.l2 import Ether, ARP, GRE
 from scapy.data import IP_PROTOS
 from scapy.layers.inet6 import ICMPv6DestUnreach, IPerror6, IPv6ExtHdrFragment
 from scapy.layers.l2 import Ether, ARP, GRE
 from scapy.data import IP_PROTOS
@@ -28,22 +35,32 @@ from io import BytesIO
 from vpp_papi import VppEnum
 from vpp_ip_route import VppIpRoute, VppRoutePath, FibPathType
 from vpp_neighbor import VppNeighbor
 from vpp_papi import VppEnum
 from vpp_ip_route import VppIpRoute, VppRoutePath, FibPathType
 from vpp_neighbor import VppNeighbor
-from scapy.all import bind_layers, Packet, ByteEnumField, ShortField, \
-    IPField, IntField, LongField, XByteField, FlagsField, FieldLenField, \
-    PacketListField
+from scapy.all import (
+    bind_layers,
+    Packet,
+    ByteEnumField,
+    ShortField,
+    IPField,
+    IntField,
+    LongField,
+    XByteField,
+    FlagsField,
+    FieldLenField,
+    PacketListField,
+)
 from ipaddress import IPv6Network
 
 
 @tag_fixme_vpp_workers
 class TestDSlite(VppTestCase):
 from ipaddress import IPv6Network
 
 
 @tag_fixme_vpp_workers
 class TestDSlite(VppTestCase):
-    """ DS-Lite Test Cases """
+    """DS-Lite Test Cases"""
 
     @classmethod
     def setUpClass(cls):
         super(TestDSlite, cls).setUpClass()
 
         try:
 
     @classmethod
     def setUpClass(cls):
         super(TestDSlite, cls).setUpClass()
 
         try:
-            cls.nat_addr = '10.0.0.3'
+            cls.nat_addr = "10.0.0.3"
 
             cls.create_pg_interfaces(range(3))
             cls.pg0.admin_up()
 
             cls.create_pg_interfaces(range(3))
             cls.pg0.admin_up()
@@ -65,44 +82,45 @@ class TestDSlite(VppTestCase):
     def tearDownClass(cls):
         super(TestDSlite, cls).tearDownClass()
 
     def tearDownClass(cls):
         super(TestDSlite, cls).tearDownClass()
 
-    def verify_syslog_apmadd(self, data, isaddr, isport, xsaddr, xsport,
-                             sv6enc, proto):
-        message = data.decode('utf-8')
+    def verify_syslog_apmadd(self, data, isaddr, isport, xsaddr, xsport, sv6enc, proto):
+        message = data.decode("utf-8")
         try:
             message = SyslogMessage.parse(message)
         except ParseError as e:
             self.logger.error(e)
         else:
             self.assertEqual(message.severity, SyslogSeverity.info)
         try:
             message = SyslogMessage.parse(message)
         except ParseError as e:
             self.logger.error(e)
         else:
             self.assertEqual(message.severity, SyslogSeverity.info)
-            self.assertEqual(message.appname, 'NAT')
-            self.assertEqual(message.msgid, 'APMADD')
-            sd_params = message.sd.get('napmap')
+            self.assertEqual(message.appname, "NAT")
+            self.assertEqual(message.msgid, "APMADD")
+            sd_params = message.sd.get("napmap")
             self.assertTrue(sd_params is not None)
             self.assertTrue(sd_params is not None)
-            self.assertEqual(sd_params.get('IATYP'), 'IPv4')
-            self.assertEqual(sd_params.get('ISADDR'), isaddr)
-            self.assertEqual(sd_params.get('ISPORT'), "%d" % isport)
-            self.assertEqual(sd_params.get('XATYP'), 'IPv4')
-            self.assertEqual(sd_params.get('XSADDR'), xsaddr)
-            self.assertEqual(sd_params.get('XSPORT'), "%d" % xsport)
-            self.assertEqual(sd_params.get('PROTO'), "%d" % proto)
-            self.assertTrue(sd_params.get('SSUBIX') is not None)
-            self.assertEqual(sd_params.get('SV6ENC'), sv6enc)
+            self.assertEqual(sd_params.get("IATYP"), "IPv4")
+            self.assertEqual(sd_params.get("ISADDR"), isaddr)
+            self.assertEqual(sd_params.get("ISPORT"), "%d" % isport)
+            self.assertEqual(sd_params.get("XATYP"), "IPv4")
+            self.assertEqual(sd_params.get("XSADDR"), xsaddr)
+            self.assertEqual(sd_params.get("XSPORT"), "%d" % xsport)
+            self.assertEqual(sd_params.get("PROTO"), "%d" % proto)
+            self.assertTrue(sd_params.get("SSUBIX") is not None)
+            self.assertEqual(sd_params.get("SV6ENC"), sv6enc)
 
     def test_dslite(self):
 
     def test_dslite(self):
-        """ Test DS-Lite """
-        self.vapi.dslite_add_del_pool_addr_range(start_addr=self.nat_addr,
-                                                 end_addr=self.nat_addr,
-                                                 is_add=1)
-        aftr_ip4 = '192.0.0.1'
-        aftr_ip6 = '2001:db8:85a3::8a2e:370:1'
+        """Test DS-Lite"""
+        self.vapi.dslite_add_del_pool_addr_range(
+            start_addr=self.nat_addr, end_addr=self.nat_addr, is_add=1
+        )
+        aftr_ip4 = "192.0.0.1"
+        aftr_ip6 = "2001:db8:85a3::8a2e:370:1"
         self.vapi.dslite_set_aftr_addr(ip4_addr=aftr_ip4, ip6_addr=aftr_ip6)
         self.vapi.syslog_set_sender(self.pg2.local_ip4, self.pg2.remote_ip4)
 
         # UDP
         self.vapi.dslite_set_aftr_addr(ip4_addr=aftr_ip4, ip6_addr=aftr_ip6)
         self.vapi.syslog_set_sender(self.pg2.local_ip4, self.pg2.remote_ip4)
 
         # UDP
-        p = (Ether(dst=self.pg1.local_mac, src=self.pg1.remote_mac) /
-             IPv6(dst=aftr_ip6, src=self.pg1.remote_hosts[0].ip6) /
-             IP(dst=self.pg0.remote_ip4, src='192.168.1.1') /
-             UDP(sport=20000, dport=10000))
+        p = (
+            Ether(dst=self.pg1.local_mac, src=self.pg1.remote_mac)
+            / IPv6(dst=aftr_ip6, src=self.pg1.remote_hosts[0].ip6)
+            / IP(dst=self.pg0.remote_ip4, src="192.168.1.1")
+            / UDP(sport=20000, dport=10000)
+        )
         self.pg1.add_stream(p)
         self.pg_enable_capture(self.pg_interfaces)
         self.pg_start()
         self.pg1.add_stream(p)
         self.pg_enable_capture(self.pg_interfaces)
         self.pg_start()
@@ -116,13 +134,21 @@ class TestDSlite(VppTestCase):
         self.assert_packet_checksums_valid(capture)
         out_port = capture[UDP].sport
         capture = self.pg2.get_capture(1)
         self.assert_packet_checksums_valid(capture)
         out_port = capture[UDP].sport
         capture = self.pg2.get_capture(1)
-        self.verify_syslog_apmadd(capture[0][Raw].load, '192.168.1.1',
-                                  20000, self.nat_addr, out_port,
-                                  self.pg1.remote_hosts[0].ip6, IP_PROTOS.udp)
-
-        p = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
-             IP(dst=self.nat_addr, src=self.pg0.remote_ip4) /
-             UDP(sport=10000, dport=out_port))
+        self.verify_syslog_apmadd(
+            capture[0][Raw].load,
+            "192.168.1.1",
+            20000,
+            self.nat_addr,
+            out_port,
+            self.pg1.remote_hosts[0].ip6,
+            IP_PROTOS.udp,
+        )
+
+        p = (
+            Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac)
+            / IP(dst=self.nat_addr, src=self.pg0.remote_ip4)
+            / UDP(sport=10000, dport=out_port)
+        )
         self.pg0.add_stream(p)
         self.pg_enable_capture(self.pg_interfaces)
         self.pg_start()
         self.pg0.add_stream(p)
         self.pg_enable_capture(self.pg_interfaces)
         self.pg_start()
@@ -131,16 +157,18 @@ class TestDSlite(VppTestCase):
         self.assertEqual(capture[IPv6].src, aftr_ip6)
         self.assertEqual(capture[IPv6].dst, self.pg1.remote_hosts[0].ip6)
         self.assertEqual(capture[IP].src, self.pg0.remote_ip4)
         self.assertEqual(capture[IPv6].src, aftr_ip6)
         self.assertEqual(capture[IPv6].dst, self.pg1.remote_hosts[0].ip6)
         self.assertEqual(capture[IP].src, self.pg0.remote_ip4)
-        self.assertEqual(capture[IP].dst, '192.168.1.1')
+        self.assertEqual(capture[IP].dst, "192.168.1.1")
         self.assertEqual(capture[UDP].sport, 10000)
         self.assertEqual(capture[UDP].dport, 20000)
         self.assert_packet_checksums_valid(capture)
 
         # TCP
         self.assertEqual(capture[UDP].sport, 10000)
         self.assertEqual(capture[UDP].dport, 20000)
         self.assert_packet_checksums_valid(capture)
 
         # TCP
-        p = (Ether(dst=self.pg1.local_mac, src=self.pg1.remote_mac) /
-             IPv6(dst=aftr_ip6, src=self.pg1.remote_hosts[1].ip6) /
-             IP(dst=self.pg0.remote_ip4, src='192.168.1.1') /
-             TCP(sport=20001, dport=10001))
+        p = (
+            Ether(dst=self.pg1.local_mac, src=self.pg1.remote_mac)
+            / IPv6(dst=aftr_ip6, src=self.pg1.remote_hosts[1].ip6)
+            / IP(dst=self.pg0.remote_ip4, src="192.168.1.1")
+            / TCP(sport=20001, dport=10001)
+        )
         self.pg1.add_stream(p)
         self.pg_enable_capture(self.pg_interfaces)
         self.pg_start()
         self.pg1.add_stream(p)
         self.pg_enable_capture(self.pg_interfaces)
         self.pg_start()
@@ -154,9 +182,11 @@ class TestDSlite(VppTestCase):
         self.assert_packet_checksums_valid(capture)
         out_port = capture[TCP].sport
 
         self.assert_packet_checksums_valid(capture)
         out_port = capture[TCP].sport
 
-        p = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
-             IP(dst=self.nat_addr, src=self.pg0.remote_ip4) /
-             TCP(sport=10001, dport=out_port))
+        p = (
+            Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac)
+            / IP(dst=self.nat_addr, src=self.pg0.remote_ip4)
+            / TCP(sport=10001, dport=out_port)
+        )
         self.pg0.add_stream(p)
         self.pg_enable_capture(self.pg_interfaces)
         self.pg_start()
         self.pg0.add_stream(p)
         self.pg_enable_capture(self.pg_interfaces)
         self.pg_start()
@@ -165,16 +195,18 @@ class TestDSlite(VppTestCase):
         self.assertEqual(capture[IPv6].src, aftr_ip6)
         self.assertEqual(capture[IPv6].dst, self.pg1.remote_hosts[1].ip6)
         self.assertEqual(capture[IP].src, self.pg0.remote_ip4)
         self.assertEqual(capture[IPv6].src, aftr_ip6)
         self.assertEqual(capture[IPv6].dst, self.pg1.remote_hosts[1].ip6)
         self.assertEqual(capture[IP].src, self.pg0.remote_ip4)
-        self.assertEqual(capture[IP].dst, '192.168.1.1')
+        self.assertEqual(capture[IP].dst, "192.168.1.1")
         self.assertEqual(capture[TCP].sport, 10001)
         self.assertEqual(capture[TCP].dport, 20001)
         self.assert_packet_checksums_valid(capture)
 
         # ICMP
         self.assertEqual(capture[TCP].sport, 10001)
         self.assertEqual(capture[TCP].dport, 20001)
         self.assert_packet_checksums_valid(capture)
 
         # ICMP
-        p = (Ether(dst=self.pg1.local_mac, src=self.pg1.remote_mac) /
-             IPv6(dst=aftr_ip6, src=self.pg1.remote_hosts[1].ip6) /
-             IP(dst=self.pg0.remote_ip4, src='192.168.1.1') /
-             ICMP(id=4000, type='echo-request'))
+        p = (
+            Ether(dst=self.pg1.local_mac, src=self.pg1.remote_mac)
+            / IPv6(dst=aftr_ip6, src=self.pg1.remote_hosts[1].ip6)
+            / IP(dst=self.pg0.remote_ip4, src="192.168.1.1")
+            / ICMP(id=4000, type="echo-request")
+        )
         self.pg1.add_stream(p)
         self.pg_enable_capture(self.pg_interfaces)
         self.pg_start()
         self.pg1.add_stream(p)
         self.pg_enable_capture(self.pg_interfaces)
         self.pg_start()
@@ -187,9 +219,11 @@ class TestDSlite(VppTestCase):
         self.assert_packet_checksums_valid(capture)
         out_id = capture[ICMP].id
 
         self.assert_packet_checksums_valid(capture)
         out_id = capture[ICMP].id
 
-        p = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
-             IP(dst=self.nat_addr, src=self.pg0.remote_ip4) /
-             ICMP(id=out_id, type='echo-reply'))
+        p = (
+            Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac)
+            / IP(dst=self.nat_addr, src=self.pg0.remote_ip4)
+            / ICMP(id=out_id, type="echo-reply")
+        )
         self.pg0.add_stream(p)
         self.pg_enable_capture(self.pg_interfaces)
         self.pg_start()
         self.pg0.add_stream(p)
         self.pg_enable_capture(self.pg_interfaces)
         self.pg_start()
@@ -198,14 +232,16 @@ class TestDSlite(VppTestCase):
         self.assertEqual(capture[IPv6].src, aftr_ip6)
         self.assertEqual(capture[IPv6].dst, self.pg1.remote_hosts[1].ip6)
         self.assertEqual(capture[IP].src, self.pg0.remote_ip4)
         self.assertEqual(capture[IPv6].src, aftr_ip6)
         self.assertEqual(capture[IPv6].dst, self.pg1.remote_hosts[1].ip6)
         self.assertEqual(capture[IP].src, self.pg0.remote_ip4)
-        self.assertEqual(capture[IP].dst, '192.168.1.1')
+        self.assertEqual(capture[IP].dst, "192.168.1.1")
         self.assertEqual(capture[ICMP].id, 4000)
         self.assert_packet_checksums_valid(capture)
 
         # ping DS-Lite AFTR tunnel endpoint address
         self.assertEqual(capture[ICMP].id, 4000)
         self.assert_packet_checksums_valid(capture)
 
         # ping DS-Lite AFTR tunnel endpoint address
-        p = (Ether(dst=self.pg1.local_mac, src=self.pg1.remote_mac) /
-             IPv6(src=self.pg1.remote_hosts[1].ip6, dst=aftr_ip6) /
-             ICMPv6EchoRequest())
+        p = (
+            Ether(dst=self.pg1.local_mac, src=self.pg1.remote_mac)
+            / IPv6(src=self.pg1.remote_hosts[1].ip6, dst=aftr_ip6)
+            / ICMPv6EchoRequest()
+        )
         self.pg1.add_stream(p)
         self.pg_enable_capture(self.pg_interfaces)
         self.pg_start()
         self.pg1.add_stream(p)
         self.pg_enable_capture(self.pg_interfaces)
         self.pg_start()
@@ -215,9 +251,9 @@ class TestDSlite(VppTestCase):
         self.assertEqual(capture[IPv6].dst, self.pg1.remote_hosts[1].ip6)
         self.assertTrue(capture.haslayer(ICMPv6EchoReply))
 
         self.assertEqual(capture[IPv6].dst, self.pg1.remote_hosts[1].ip6)
         self.assertTrue(capture.haslayer(ICMPv6EchoReply))
 
-        b4s = self.statistics.get_counter('/dslite/total-b4s')
+        b4s = self.statistics.get_counter("/dslite/total-b4s")
         self.assertEqual(b4s[0][0], 2)
         self.assertEqual(b4s[0][0], 2)
-        sessions = self.statistics.get_counter('/dslite/total-sessions')
+        sessions = self.statistics.get_counter("/dslite/total-sessions")
         self.assertEqual(sessions[0][0], 3)
 
     def tearDown(self):
         self.assertEqual(sessions[0][0], 3)
 
     def tearDown(self):
@@ -225,13 +261,12 @@ class TestDSlite(VppTestCase):
 
     def show_commands_at_teardown(self):
         self.logger.info(self.vapi.cli("show dslite pool"))
 
     def show_commands_at_teardown(self):
         self.logger.info(self.vapi.cli("show dslite pool"))
-        self.logger.info(
-            self.vapi.cli("show dslite aftr-tunnel-endpoint-address"))
+        self.logger.info(self.vapi.cli("show dslite aftr-tunnel-endpoint-address"))
         self.logger.info(self.vapi.cli("show dslite sessions"))
 
 
 class TestDSliteCE(VppTestCase):
         self.logger.info(self.vapi.cli("show dslite sessions"))
 
 
 class TestDSliteCE(VppTestCase):
-    """ DS-Lite CE Test Cases """
+    """DS-Lite CE Test Cases"""
 
     @classmethod
     def setUpConstants(cls):
 
     @classmethod
     def setUpConstants(cls):
@@ -261,25 +296,30 @@ class TestDSliteCE(VppTestCase):
         super(TestDSliteCE, cls).tearDownClass()
 
     def test_dslite_ce(self):
         super(TestDSliteCE, cls).tearDownClass()
 
     def test_dslite_ce(self):
-        """ Test DS-Lite CE """
-        b4_ip4 = '192.0.0.2'
-        b4_ip6 = '2001:db8:62aa::375e:f4c1:1'
+        """Test DS-Lite CE"""
+        b4_ip4 = "192.0.0.2"
+        b4_ip6 = "2001:db8:62aa::375e:f4c1:1"
         self.vapi.dslite_set_b4_addr(ip4_addr=b4_ip4, ip6_addr=b4_ip6)
 
         self.vapi.dslite_set_b4_addr(ip4_addr=b4_ip4, ip6_addr=b4_ip6)
 
-        aftr_ip4 = '192.0.0.1'
-        aftr_ip6 = '2001:db8:85a3::8a2e:370:1'
+        aftr_ip4 = "192.0.0.1"
+        aftr_ip6 = "2001:db8:85a3::8a2e:370:1"
         aftr_ip6_n = socket.inet_pton(socket.AF_INET6, aftr_ip6)
         self.vapi.dslite_set_aftr_addr(ip4_addr=aftr_ip4, ip6_addr=aftr_ip6)
 
         aftr_ip6_n = socket.inet_pton(socket.AF_INET6, aftr_ip6)
         self.vapi.dslite_set_aftr_addr(ip4_addr=aftr_ip4, ip6_addr=aftr_ip6)
 
-        r1 = VppIpRoute(self, aftr_ip6, 128,
-                        [VppRoutePath(self.pg1.remote_ip6,
-                                      self.pg1.sw_if_index)])
+        r1 = VppIpRoute(
+            self,
+            aftr_ip6,
+            128,
+            [VppRoutePath(self.pg1.remote_ip6, self.pg1.sw_if_index)],
+        )
         r1.add_vpp_config()
 
         # UDP encapsulation
         r1.add_vpp_config()
 
         # UDP encapsulation
-        p = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
-             IP(dst=self.pg1.remote_ip4, src=self.pg0.remote_ip4) /
-             UDP(sport=10000, dport=20000))
+        p = (
+            Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac)
+            / IP(dst=self.pg1.remote_ip4, src=self.pg0.remote_ip4)
+            / UDP(sport=10000, dport=20000)
+        )
         self.pg0.add_stream(p)
         self.pg_enable_capture(self.pg_interfaces)
         self.pg_start()
         self.pg0.add_stream(p)
         self.pg_enable_capture(self.pg_interfaces)
         self.pg_start()
@@ -294,10 +334,12 @@ class TestDSliteCE(VppTestCase):
         self.assert_packet_checksums_valid(capture)
 
         # UDP decapsulation
         self.assert_packet_checksums_valid(capture)
 
         # UDP decapsulation
-        p = (Ether(dst=self.pg1.local_mac, src=self.pg1.remote_mac) /
-             IPv6(dst=b4_ip6, src=aftr_ip6) /
-             IP(dst=self.pg0.remote_ip4, src=self.pg1.remote_ip4) /
-             UDP(sport=20000, dport=10000))
+        p = (
+            Ether(dst=self.pg1.local_mac, src=self.pg1.remote_mac)
+            / IPv6(dst=b4_ip6, src=aftr_ip6)
+            / IP(dst=self.pg0.remote_ip4, src=self.pg1.remote_ip4)
+            / UDP(sport=20000, dport=10000)
+        )
         self.pg1.add_stream(p)
         self.pg_enable_capture(self.pg_interfaces)
         self.pg_start()
         self.pg1.add_stream(p)
         self.pg_enable_capture(self.pg_interfaces)
         self.pg_start()
@@ -311,9 +353,11 @@ class TestDSliteCE(VppTestCase):
         self.assert_packet_checksums_valid(capture)
 
         # ping DS-Lite B4 tunnel endpoint address
         self.assert_packet_checksums_valid(capture)
 
         # ping DS-Lite B4 tunnel endpoint address
-        p = (Ether(dst=self.pg1.local_mac, src=self.pg1.remote_mac) /
-             IPv6(src=self.pg1.remote_hosts[0].ip6, dst=b4_ip6) /
-             ICMPv6EchoRequest())
+        p = (
+            Ether(dst=self.pg1.local_mac, src=self.pg1.remote_mac)
+            / IPv6(src=self.pg1.remote_hosts[0].ip6, dst=b4_ip6)
+            / ICMPv6EchoRequest()
+        )
         self.pg1.add_stream(p)
         self.pg_enable_capture(self.pg_interfaces)
         self.pg_start()
         self.pg1.add_stream(p)
         self.pg_enable_capture(self.pg_interfaces)
         self.pg_start()
@@ -327,7 +371,5 @@ class TestDSliteCE(VppTestCase):
         super(TestDSliteCE, self).tearDown()
 
     def show_commands_at_teardown(self):
         super(TestDSliteCE, self).tearDown()
 
     def show_commands_at_teardown(self):
-        self.logger.info(
-            self.vapi.cli("show dslite aftr-tunnel-endpoint-address"))
-        self.logger.info(
-            self.vapi.cli("show dslite b4-tunnel-endpoint-address"))
+        self.logger.info(self.vapi.cli("show dslite aftr-tunnel-endpoint-address"))
+        self.logger.info(self.vapi.cli("show dslite b4-tunnel-endpoint-address"))
Vector Packet Processing