From: Matus Fabian <matfabia@cisco.com>
Date: Tue, 29 Jul 2025 15:26:24 +0000 (-0400)
Subject: hs-test: nsim loss rate test
X-Git-Tag: v26.02-rc0~137
X-Git-Url: https://gerrit.fd.io/r/gitweb?a=commitdiff_plain;h=refs%2Fchanges%2F97%2F43497%2F3;p=vpp.git

hs-test: nsim loss rate test

Type: test

Change-Id: I592c755c7bdc5daf422655892b171c42f19e9a7c
Signed-off-by: Matus Fabian <matfabia@cisco.com>
---

diff --git a/extras/hs-test/nsim_test.go b/extras/hs-test/nsim_test.go
new file mode 100644
index 00000000000..c47e83455e7
--- /dev/null
+++ b/extras/hs-test/nsim_test.go
@@ -0,0 +1,24 @@
+package main
+
+import (
+	"strings"
+
+	. "fd.io/hs-test/infra"
+)
+
+func init() {
+	RegisterVethTests(NsimLossTest)
+}
+func NsimLossTest(s *VethsSuite) {
+	clientVpp := s.Containers.ClientVpp.VppInstance
+
+	s.Log(clientVpp.Vppctl("set nsim poll-main-thread delay 0.01 ms bandwidth 40 gbit packet-size 1400 drop-fraction 0.1"))
+	s.Log(clientVpp.Vppctl("nsim output-feature enable-disable host-" + s.Interfaces.Client.Name()))
+	o := clientVpp.Vppctl("show nsim")
+	s.AssertNotContains(o, "nsim not enabled")
+	o = clientVpp.Vppctl("ping " + s.Interfaces.Server.Ip4AddressString() + " repeat 10000 interval 0.0001")
+	lines := strings.Split(o, "\n")
+	stats := lines[len(lines)-2]
+	s.Log(stats)
+	s.AssertContains(stats, "10% packet loss")
+}