[#94] object: Generate protobufs for Patch method

* Generate protobufs for patch method;
* Create marshalers, unmarshalers, converters for gererated types;
* Add unit-tests.

Signed-off-by: Airat Arifullin <a.arifullin@yadro.com>

object/test/generate.go

@@ -691,6 +691,63 @@ func GeneratePutSingleResponse(empty bool) *object.PutSingleResponse {
 	return m
 }
 
+func GeneratePatchRequestBodyPatch(empty bool) *object.PatchRequestBodyPatch {
+	m := new(object.PatchRequestBodyPatch)
+
+	if !empty {
+		m.Range = GenerateRange(false)
+		m.Chunk = []byte("GeneratePatchRequestBodyPatch")
+	}
+
+	return m
+}
+
+func GeneratePatchRequestBody(empty bool) *object.PatchRequestBody {
+	m := new(object.PatchRequestBody)
+
+	if !empty {
+		m.Address = refstest.GenerateAddress(empty)
+		m.NewAttributes = GenerateAttributes(empty)
+		m.ReplaceAttributes = false
+		m.Patch = GeneratePatchRequestBodyPatch(empty)
+	}
+
+	return m
+}
+
+func GeneratePatchRequest(empty bool) *object.PatchRequest {
+	m := new(object.PatchRequest)
+
+	if !empty {
+		m.Body = GeneratePatchRequestBody(empty)
+	}
+
+	m.SetMetaHeader(sessiontest.GenerateRequestMetaHeader(empty))
+	m.SetVerificationHeader(sessiontest.GenerateRequestVerificationHeader(empty))
+
+	return m
+}
+
+func GeneratePatchResponseBody(empty bool) *object.PatchResponseBody {
+	m := new(object.PatchResponseBody)
+
+	if !empty {
+		m.ObjectID = refstest.GenerateObjectID(empty)
+	}
+
+	return m
+}
+
+func GeneratePatchResponse(empty bool) *object.PatchResponse {
+	m := new(object.PatchResponse)
+
+	if !empty {
+		m.Body = GeneratePatchResponseBody(empty)
+	}
+
+	return m
+}
+
 func randomInt(n int) int {
 	return rand.New(rand.NewSource(time.Now().UnixNano())).Intn(n)
 }