blob: 297f14e63db46a3bad213cf95cd34651cd8fdca3 [file] [log] [blame]
// Copyright 2020 The Pigweed Authors
// Licensed under the Apache License, Version 2.0 (the "License"); you may not
// use this file except in compliance with the License. You may obtain a copy of
// the License at
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
// License for the specific language governing permissions and limitations under
// the License.
#pragma once
#include <cstdint>
#include <cstring>
#include <span>
#include "pw_rpc/internal/base_method.h"
#include "pw_rpc/server_context.h"
#include "pw_status/status_with_size.h"
namespace pw::rpc::internal {
// This is a fake RPC method implementation for testing only. It stores the
// channel ID, request, and payload buffer, and optionally provides a response.
class Method : public BaseMethod {
constexpr Method(uint32_t id) : BaseMethod(id), last_channel_id_(0) {}
StatusWithSize Invoke(ServerCall& call,
std::span<const std::byte> request,
std::span<std::byte> payload_buffer) const {
last_channel_id_ =;
last_request_ = request;
last_payload_buffer_ = payload_buffer;
std::min(response_.size(), payload_buffer.size()));
return StatusWithSize(response_status_, response_.size());
uint32_t last_channel_id() const { return last_channel_id_; }
std::span<const std::byte> last_request() const { return last_request_; }
std::span<std::byte> last_payload_buffer() const {
return last_payload_buffer_;
void set_response(std::span<const std::byte> payload) { response_ = payload; }
void set_status(Status status) { response_status_ = status; }
// Make these mutable so they can be set in the Invoke method, which is const.
// The Method class is used exclusively in tests. Having these members mutable
// allows tests to verify that the Method is invoked correctly.
mutable uint32_t last_channel_id_;
mutable std::span<const std::byte> last_request_;
mutable std::span<std::byte> last_payload_buffer_;
std::span<const std::byte> response_;
Status response_status_;
} // namespace pw::rpc::internal