[#129] v2: Add unified structure for NodeInfo

Signed-off-by: Alex Vanin <alexey@nspcc.ru>

v2/netmap/marshal_test.go

@@ -0,0 +1,66 @@
+package netmap_test
+
+import (
+	"strconv"
+	"testing"
+
+	"github.com/nspcc-dev/neofs-api-go/v2/netmap"
+	grpc "github.com/nspcc-dev/neofs-api-go/v2/netmap/grpc"
+	"github.com/stretchr/testify/require"
+)
+
+func TestAttribute_StableMarshal(t *testing.T) {
+	from := generateAttribute("key", "value")
+	transport := new(grpc.NodeInfo_Attribute)
+
+	t.Run("non empty", func(t *testing.T) {
+		wire, err := from.StableMarshal(nil)
+		require.NoError(t, err)
+
+		err = transport.Unmarshal(wire)
+		require.NoError(t, err)
+
+		to := netmap.AttributeFromGRPCMessage(transport)
+		require.Equal(t, from, to)
+	})
+}
+
+func TestNodeInfo(t *testing.T) {
+	from := generateNodeInfo("publicKey", "/multi/addr", 10)
+	transport := new(grpc.NodeInfo)
+
+	t.Run("non empty", func(t *testing.T) {
+		wire, err := from.StableMarshal(nil)
+		require.NoError(t, err)
+
+		err = transport.Unmarshal(wire)
+		require.NoError(t, err)
+
+		to := netmap.NodeInfoFromGRPCMessage(transport)
+		require.Equal(t, from, to)
+	})
+}
+
+func generateAttribute(k, v string) *netmap.Attribute {
+	attr := new(netmap.Attribute)
+	attr.SetKey(k)
+	attr.SetValue(v)
+
+	return attr
+}
+
+func generateNodeInfo(key, addr string, n int) *netmap.NodeInfo {
+	nodeInfo := new(netmap.NodeInfo)
+	nodeInfo.SetPublicKey([]byte(key))
+	nodeInfo.SetAddress(addr)
+
+	attrs := make([]*netmap.Attribute, n)
+	for i := 0; i < n; i++ {
+		j := strconv.Itoa(n)
+		attrs[i] = generateAttribute("key"+j, "value"+j)
+	}
+
+	nodeInfo.SetAttributes(attrs)
+
+	return nodeInfo
+}