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// 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
//
// https://www.apache.org/licenses/LICENSE-2.0
//
// 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.
#include "pw_rpc/channel.h"
#include <cstddef>
#include "gtest/gtest.h"
#include "pw_rpc/internal/packet.h"
#include "pw_rpc/internal/test_utils.h"
namespace pw::rpc::internal {
namespace {
TEST(ChannelOutput, Name) {
class NameTester : public ChannelOutput {
public:
NameTester(const char* name) : ChannelOutput(name) {}
Status Send(std::span<const std::byte>) override { return OkStatus(); }
};
EXPECT_STREQ("hello_world", NameTester("hello_world").name());
EXPECT_EQ(nullptr, NameTester(nullptr).name());
}
constexpr Packet kTestPacket(
PacketType::RESPONSE, 23, 42, 100, 0, {}, Status::NotFound());
const size_t kReservedSize = 2 /* type */ + 2 /* channel */ + 5 /* service */ +
5 /* method */ + 2 /* payload key */ +
2 /* status (if not OK) */;
enum class ChannelId {
kOne = 1,
kTwo = 2,
};
TEST(Channel, Create_FromEnum) {
constexpr rpc::Channel one = Channel::Create<ChannelId::kOne>(nullptr);
constexpr rpc::Channel two = Channel::Create<ChannelId::kTwo>(nullptr);
static_assert(one.id() == 1);
static_assert(two.id() == 2);
}
TEST(Channel, TestPacket_ReservedSizeMatchesMinEncodedSizeBytes) {
EXPECT_EQ(kReservedSize, kTestPacket.MinEncodedSizeBytes());
}
TEST(ExtractChannelId, ValidPacket) {
std::byte buffer[64] = {};
Result<ConstByteSpan> result = kTestPacket.Encode(buffer);
ASSERT_EQ(result.status(), OkStatus());
Result<uint32_t> channel_id = ExtractChannelId(*result);
ASSERT_EQ(channel_id.status(), OkStatus());
EXPECT_EQ(*channel_id, 23u);
}
TEST(ExtractChannelId, InvalidPacket) {
constexpr std::byte buffer[64] = {std::byte{1}, std::byte{2}};
Result<uint32_t> channel_id = ExtractChannelId(buffer);
EXPECT_EQ(channel_id.status(), Status::DataLoss());
}
} // namespace
} // namespace pw::rpc::internal
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