[#168] session: Implement binary/JSON encoders/decoders on ResponseVerify

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>

v2/session/json.go

@@ -164,3 +164,23 @@ func (r *ResponseMetaHeader) UnmarshalJSON(data []byte) error {
 
 	return nil
 }
+
+func (r *ResponseVerificationHeader) MarshalJSON() ([]byte, error) {
+	return protojson.MarshalOptions{
+		EmitUnpopulated: true,
+	}.Marshal(
+		ResponseVerificationHeaderToGRPCMessage(r),
+	)
+}
+
+func (r *ResponseVerificationHeader) UnmarshalJSON(data []byte) error {
+	msg := new(session.ResponseVerificationHeader)
+
+	if err := protojson.Unmarshal(data, msg); err != nil {
+		return err
+	}
+
+	*r = *ResponseVerificationHeaderFromGRPCMessage(msg)
+
+	return nil
+}

v2/session/json_test.go

@@ -102,3 +102,15 @@ func TestResponseMetaHeaderJSON(t *testing.T) {
 
 	require.Equal(t, r, r2)
 }
+
+func TestResponseVerificationHeaderJSON(t *testing.T) {
+	r := generateResponseVerificationHeader("key", "value")
+
+	data, err := r.MarshalJSON()
+	require.NoError(t, err)
+
+	r2 := new(session.ResponseVerificationHeader)
+	require.NoError(t, r2.UnmarshalJSON(data))
+
+	require.Equal(t, r, r2)
+}

v2/session/marshal.go

@@ -745,3 +745,14 @@ func (r *ResponseVerificationHeader) StableSize() (size int) {
 
 	return size
 }
+
+func (r *ResponseVerificationHeader) Unmarshal(data []byte) error {
+	m := new(session.ResponseVerificationHeader)
+	if err := goproto.Unmarshal(data, m); err != nil {
+		return err
+	}
+
+	*r = *ResponseVerificationHeaderFromGRPCMessage(m)
+
+	return nil
+}

v2/session/marshal_test.go

@@ -166,16 +166,14 @@ func TestResponseVerificationHeader_StableMarshal(t *testing.T) {
 	verifHeaderOrigin := generateResponseVerificationHeader("Key", "Inside")
 	verifHeaderFrom := generateResponseVerificationHeader("Value", "Outside")
 	verifHeaderFrom.SetOrigin(verifHeaderOrigin)
-	transport := new(grpc.ResponseVerificationHeader)
 
 	t.Run("non empty", func(t *testing.T) {
 		wire, err := verifHeaderFrom.StableMarshal(nil)
 		require.NoError(t, err)
 
-		err = goproto.Unmarshal(wire, transport)
+		verifHeaderTo := new(session.ResponseVerificationHeader)
-		require.NoError(t, err)
+		require.NoError(t, verifHeaderTo.Unmarshal(wire))
 
-		verifHeaderTo := session.ResponseVerificationHeaderFromGRPCMessage(transport)
 		require.Equal(t, verifHeaderFrom, verifHeaderTo)
 	})
 }