vpp/test/test_interface_crud.py
Klement Sekera d9b0c6fbf7 tests: replace pycodestyle with black
Drop pycodestyle for code style checking in favor of black. Black is
much faster, stable PEP8 compliant code style checker offering also
automatic formatting. It aims to be very stable and produce smallest
diffs. It's used by many small and big projects.

Running checkstyle with black takes a few seconds with a terse output.
Thus, test-checkstyle-diff is no longer necessary.

Expand scope of checkstyle to all python files in the repo, replacing
test-checkstyle with checkstyle-python.

Also, fixstyle-python is now available for automatic style formatting.

Note: python virtualenv has been consolidated in test/Makefile,
test/requirements*.txt which will eventually be moved to a central
location.  This is required to simply the automated generation of
docker executor images in the CI.

Type: improvement
Change-Id: I022a326603485f58585e879ac0f697fceefbc9c8
Signed-off-by: Klement Sekera <klement.sekera@gmail.com>
Signed-off-by: Dave Wallace <dwallacelf@gmail.com>
2022-05-10 18:52:08 +00:00

191 lines
6.0 KiB
Python

#!/usr/bin/env python3
"""CRUD tests of APIs (Create, Read, Update, Delete) HLD:
- interface up/down/add/delete - interface type:
- pg (TBD)
- loopback
- vhostuser (TBD)
- af_packet (TBD)
- netmap (TBD)
- tuntap (root privileges needed)
- vxlan (TBD)
"""
import unittest
from scapy.layers.inet import IP, ICMP
from scapy.layers.l2 import Ether
from framework import VppTestCase, VppTestRunner
class TestLoopbackInterfaceCRUD(VppTestCase):
"""CRUD Loopback"""
@classmethod
def setUpClass(cls):
super(TestLoopbackInterfaceCRUD, cls).setUpClass()
try:
cls.create_pg_interfaces(range(1))
for i in cls.pg_interfaces:
i.config_ip4().resolve_arp()
except:
cls.tearDownClass()
raise
@classmethod
def tearDownClass(cls):
super(TestLoopbackInterfaceCRUD, cls).tearDownClass()
@staticmethod
def create_icmp_stream(src_if, dst_ifs):
"""
:param VppInterface src_if: Packets are send to this interface,
using this interfaces remote host.
:param list dst_ifs: IPv4 ICMP requests are send to interfaces
addresses.
:return: List of generated packets.
"""
pkts = []
for i in dst_ifs:
p = (
Ether(dst=src_if.local_mac, src=src_if.remote_mac)
/ IP(src=src_if.remote_ip4, dst=i.local_ip4)
/ ICMP(id=i.sw_if_index, type="echo-request")
)
pkts.append(p)
return pkts
def verify_icmp(self, capture, request_src_if, dst_ifs):
"""
:param capture: Capture to verify.
:param VppInterface request_src_if: Interface where was send packets.
:param list dst_ifs: Interfaces where was generated IPv4 ICMP requests.
"""
rcvd_icmp_pkts = []
for pkt in capture:
try:
ip = pkt[IP]
icmp = pkt[ICMP]
except IndexError:
pass
else:
info = (ip.src, ip.dst, icmp.type, icmp.id)
rcvd_icmp_pkts.append(info)
for i in dst_ifs:
# 0 - icmp echo response
info = (i.local_ip4, request_src_if.remote_ip4, 0, i.sw_if_index)
self.assertIn(info, rcvd_icmp_pkts)
def test_crud(self):
# create
loopbacks = self.create_loopback_interfaces(20)
for i in loopbacks:
i.local_ip4_prefix_len = 32
i.config_ip4().admin_up()
# read (check sw if dump, ip4 fib, ip6 fib)
if_dump = self.vapi.sw_interface_dump(
name_filter_valid=True, name_filter="loop"
)
fib4_dump = self.vapi.ip_route_dump(0)
for i in loopbacks:
self.assertTrue(i.is_interface_config_in_dump(if_dump))
self.assertTrue(i.is_ip4_entry_in_fib_dump(fib4_dump))
if_dump = self.vapi.sw_interface_dump(
name_filter_valid=True, name_filter="loopXYZ"
)
self.assertEqual(len(if_dump), 0)
# check ping
stream = self.create_icmp_stream(self.pg0, loopbacks)
self.pg0.add_stream(stream)
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
capture = self.pg0.get_capture(expected_count=len(stream))
self.verify_icmp(capture, self.pg0, loopbacks)
# delete
for i in loopbacks:
i.remove_vpp_config()
# read (check not in sw if dump, ip4 fib, ip6 fib)
if_dump = self.vapi.sw_interface_dump()
fib4_dump = self.vapi.ip_route_dump(0)
for i in loopbacks:
self.assertFalse(i.is_interface_config_in_dump(if_dump))
self.assertFalse(i.is_ip4_entry_in_fib_dump(fib4_dump))
# check not ping
stream = self.create_icmp_stream(self.pg0, loopbacks)
self.pg0.add_stream(stream)
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
self.pg0.assert_nothing_captured()
def test_down(self):
# create
loopbacks = self.create_loopback_interfaces(20)
for i in loopbacks:
i.local_ip4_prefix_len = 32
i.config_ip4().admin_up()
# disable
for i in loopbacks:
i.admin_down().unconfig_ip4()
# read (check not in sw if dump, ip4 fib, ip6 fib)
if_dump = self.vapi.sw_interface_dump()
fib4_dump = self.vapi.ip_route_dump(0)
for i in loopbacks:
self.assertTrue(i.is_interface_config_in_dump(if_dump))
self.assertFalse(i.is_ip4_entry_in_fib_dump(fib4_dump))
# check not ping
stream = self.create_icmp_stream(self.pg0, loopbacks)
self.pg0.add_stream(stream)
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
self.pg0.assert_nothing_captured()
class TestInterfaceDumpApiLocalOnly(VppTestCase):
"""test_interface_crud.TestInterfaceDumpApiLocalOnly"""
def test_sw_if_index_0(self):
rv = self.vapi.sw_interface_dump(sw_if_index=0)
self.assertEqual(rv[0].sw_if_index, 0)
def test_sw_if_index_twiddle0(self):
rv = self.vapi.sw_interface_dump(sw_if_index=0xFFFFFFFF)
self.assertEqual(rv[0].sw_if_index, 0)
def test_sw_if_index_1_not_existing(self):
rv = self.vapi.sw_interface_dump(sw_if_index=1)
self.assertEqual(len(rv), 0, "expected no records.")
class TestInterfaceDumpApi(VppTestCase):
"""test_interface_crud.TestInterfaceDumpApi"""
def test_sw_if_index_1(self):
self.vapi.create_loopback_instance(is_specified=1, user_instance=10)
self.vapi.create_loopback_instance(is_specified=1, user_instance=5)
# Can I get back the specified record?
rv = self.vapi.sw_interface_dump(sw_if_index=1)
self.assertEqual(rv[0].sw_if_index, 1, rv)
# verify 3 interfaces
rv = self.vapi.sw_interface_dump(sw_if_index=0xFFFFFFFF)
self.assertEqual(len(rv), 3, "Expected 3 interfaces.")
if __name__ == "__main__":
unittest.main(testRunner=VppTestRunner)