package main import ( "fmt" "time" ) func (s *VethsSuite) TestVclEchoQuic() { s.T().Skip("quic test skipping..") s.testVclEcho("quic") } func (s *VethsSuite) TestVclEchoUdp() { s.T().Skip("udp echo currently broken in vpp, skipping..") s.testVclEcho("udp") } func (s *VethsSuite) TestVclEchoTcp() { s.testVclEcho("tcp") } func (s *VethsSuite) testVclEcho(proto string) { srvVppContainer := s.getContainerByName("server-vpp") _, err := srvVppContainer.execAction("Configure2Veths srv") s.assertNil(err) clnVppContainer := s.getContainerByName("client-vpp") _, err = clnVppContainer.execAction("Configure2Veths cln") s.assertNil(err) echoSrvContainer := s.getContainerByName("server-application") // run server app _, err = echoSrvContainer.execAction("RunEchoServer "+proto) s.assertNil(err) echoClnContainer := s.getContainerByName("client-application") o, err := echoClnContainer.execAction("RunEchoClient "+proto) s.assertNil(err) fmt.Println(o) } func (s *VethsSuite) TestVclRetryAttach() { s.T().Skip() s.testRetryAttach("tcp") } func (s *VethsSuite) testRetryAttach(proto string) { srvVppContainer := s.getContainerByName("server-vpp") _, err := srvVppContainer.execAction("Configure2Veths srv-with-preset-hw-addr") s.assertNil(err) clnVppContainer := s.getContainerByName("client-vpp") _, err = clnVppContainer.execAction("Configure2Veths cln") s.assertNil(err) echoSrvContainer := s.getContainerByName("server-application") _, err = echoSrvContainer.execAction("RunVclEchoServer "+proto) s.assertNil(err) fmt.Println("This whole test case can take around 3 minutes to run. Please be patient.") fmt.Println("... Running first echo client test, before disconnect.") echoClnContainer := s.getContainerByName("client-application") _, err = echoClnContainer.execAction("RunVclEchoClient "+proto) s.assertNil(err) fmt.Println("... First test ended. Stopping VPP server now.") // Stop server-vpp-instance, start it again and then run vcl-test-client once more stopVppCommand := "/bin/bash -c 'ps -C vpp_main -o pid= | xargs kill -9'" _, err = srvVppContainer.exec(stopVppCommand) s.assertNil(err) time.Sleep(5 * time.Second) // Give parent process time to reap the killed child process stopVppCommand = "/bin/bash -c 'ps -C hs-test -o pid= | xargs kill -9'" _, err = srvVppContainer.exec(stopVppCommand) s.assertNil(err) _, err = srvVppContainer.execAction("Configure2Veths srv-with-preset-hw-addr") s.assertNil(err) fmt.Println("... VPP server is starting again, so waiting for a bit.") time.Sleep(30 * time.Second) // Wait a moment for the re-attachment to happen fmt.Println("... Running second echo client test, after disconnect and re-attachment.") _, err = echoClnContainer.execAction("RunVclEchoClient "+proto) s.assertNil(err) fmt.Println("Done.") } func (s *VethsSuite) TestTcpWithLoss() { serverContainer := s.getContainerByName("server-vpp") serverVpp := NewVppInstance(serverContainer) s.assertNotNil(serverVpp) serverVpp.set2VethsServer() err := serverVpp.start() s.assertNil(err, "starting VPP failed") _, err = serverVpp.vppctl("test echo server uri tcp://10.10.10.1/20022") s.assertNil(err, "starting echo server failed") clientContainer := s.getContainerByName("client-vpp") clientVpp := NewVppInstance(clientContainer) s.assertNotNil(clientVpp) clientVpp.set2VethsClient() err = clientVpp.start() s.assertNil(err, "starting VPP failed") // Ensure that VPP doesn't abort itself with NSIM enabled // Warning: Removing this ping will make the test fail! _, err = serverVpp.vppctl("ping 10.10.10.2") s.assertNil(err, "ping failed") // Add loss of packets with Network Delay Simulator _, err = clientVpp.vppctl("set nsim poll-main-thread delay 0.01 ms bandwidth 40 gbit packet-size 1400 packets-per-drop 1000") s.assertNil(err, "configuring NSIM failed") _, err = clientVpp.vppctl("nsim output-feature enable-disable host-vppcln") s.assertNil(err, "enabling NSIM failed") // Do echo test from client-vpp container output, err := clientVpp.vppctl("test echo client uri tcp://10.10.10.1/20022 mbytes 50") s.assertNil(err) s.assertEqual(true, len(output) != 0) s.assertNotContains(output, "failed: timeout") fmt.Println(output) }