Add unit tests for node encoding/decoding

common/node_test.go

@@ -0,0 +1,28 @@
+package common
+
+import (
+	"net"
+	"reflect"
+	"testing"
+)
+
+func Test_Node_Encode_Decode(t *testing.T) {
+	pubKey := "abcdefghijklmnopkqstuvwxyzABCDEF"
+	_, ipv4, _ := net.ParseCIDR("10.0.0.1/32")
+	_, ipv6, _ := net.ParseCIDR("2001:db8::1/128")
+
+	for _, ip := range []*net.IPNet{ipv4, ipv6} {
+		node := Node{
+			nodeMeta: nodeMeta{
+				OverlayAddr: *ip,
+				PubKey:      pubKey,
+			},
+		}
+		encoded, _ := node.Encode(1024)
+		new := Node{Meta: encoded}
+		new.Decode()
+		if !reflect.DeepEqual(node.nodeMeta, new.nodeMeta) {
+			t.Errorf("node encoding then decoding mismatch: %s / %s", node.nodeMeta, new.nodeMeta)
+		}
+	}
+}