code Decode and Serialize for Prefix SID types and add unit tests

Signed-off-by: Serguei Bezverkhi <sbezverk@cisco.com>

1 files changed, 33 insertions, 0 deletions

diff --git a/pkg/packet/bgp/prefix_sid_sstlv_test.go b/pkg/packet/bgp/prefix_sid_sstlv_test.go
new file mode 100644
index 00000000..478ee431
--- /dev/null
+++ b/pkg/packet/bgp/prefix_sid_sstlv_test.go
@@ -0,0 +1,33 @@
+package bgp
+
+import (
+	"bytes"
+	"testing"
+)
+
+func TestRoundTripSubSubTLV(t *testing.T) {
+	tests := []struct {
+		name  string
+		input []byte
+	}{
+		{
+			name:  "SRv6SIDStructureSubSubTLV",
+			input: []byte{0x01, 0x00, 0x06, 0x28, 0x18, 0x10, 0x00, 0x10, 0x40},
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			sstlv := &SRv6SIDStructureSubSubTLV{}
+			if err := sstlv.DecodeFromBytes(tt.input); err != nil {
+				t.Fatalf("test failed with error: %+v", err)
+			}
+			recovered, err := sstlv.Serialize()
+			if err != nil {
+				t.Fatalf("test failed with error: %+v", err)
+			}
+			if bytes.Compare(tt.input, recovered) != 0 {
+				t.Fatalf("round trip conversion test failed as expected prefix sid attribute %+v does not match actual: %+v", tt.input, recovered)
+			}
+		})
+	}
+}