| // 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 "gtest/gtest.h" |
| #include "pw_rpc/internal/packet.h" |
| #include "pw_rpc_private/test_utils.h" |
| |
| namespace pw::rpc::internal { |
| namespace { |
| |
| using std::byte; |
| |
| TEST(ChannelOutput, Name) { |
| class NameTester : public ChannelOutput { |
| public: |
| NameTester(const char* name) : ChannelOutput(name) {} |
| std::span<std::byte> AcquireBuffer() override { return {}; } |
| void SendAndReleaseBuffer(size_t) override {} |
| }; |
| |
| EXPECT_STREQ("hello_world", NameTester("hello_world").name()); |
| EXPECT_EQ(nullptr, NameTester(nullptr).name()); |
| } |
| |
| constexpr Packet kTestPacket(PacketType::RPC, 1, 42, 100); |
| const size_t kReservedSize = 2 /* type */ + 2 /* channel */ + 5 /* service */ + |
| 5 /* method */ + 2 /* payload key */ + |
| 2 /* status */; |
| |
| TEST(Channel, TestPacket_ReservedSizeMatchesMinEncodedSizeBytes) { |
| EXPECT_EQ(kReservedSize, kTestPacket.MinEncodedSizeBytes()); |
| } |
| |
| TEST(Channel, OutputBuffer_EmptyBuffer) { |
| TestOutput<0> output; |
| internal::Channel channel(100, &output); |
| |
| Channel::OutputBuffer buffer = channel.AcquireBuffer(); |
| EXPECT_TRUE(buffer.payload(kTestPacket).empty()); |
| } |
| |
| TEST(Channel, OutputBuffer_TooSmall) { |
| TestOutput<kReservedSize - 1> output; |
| internal::Channel channel(100, &output); |
| |
| Channel::OutputBuffer output_buffer = channel.AcquireBuffer(); |
| EXPECT_TRUE(output_buffer.payload(kTestPacket).empty()); |
| |
| EXPECT_EQ(Status::INTERNAL, channel.Send(output_buffer, kTestPacket)); |
| } |
| |
| TEST(Channel, OutputBuffer_ExactFit) { |
| TestOutput<kReservedSize> output; |
| internal::Channel channel(100, &output); |
| |
| Channel::OutputBuffer output_buffer(channel.AcquireBuffer()); |
| const std::span payload = output_buffer.payload(kTestPacket); |
| |
| EXPECT_EQ(payload.size(), output.buffer().size() - kReservedSize); |
| EXPECT_EQ(output.buffer().data() + kReservedSize, payload.data()); |
| |
| EXPECT_EQ(Status::OK, channel.Send(output_buffer, kTestPacket)); |
| } |
| |
| TEST(Channel, OutputBuffer_PayloadDoesNotFit_ReportsError) { |
| TestOutput<kReservedSize> output; |
| internal::Channel channel(100, &output); |
| |
| Packet packet = kTestPacket; |
| byte data[1] = {}; |
| packet.set_payload(data); |
| |
| EXPECT_EQ(Status::INTERNAL, channel.Send(packet)); |
| } |
| |
| TEST(Channel, OutputBuffer_ExtraRoom) { |
| TestOutput<kReservedSize * 3> output; |
| internal::Channel channel(100, &output); |
| |
| Channel::OutputBuffer output_buffer = channel.AcquireBuffer(); |
| const std::span payload = output_buffer.payload(kTestPacket); |
| |
| EXPECT_EQ(payload.size(), output.buffer().size() - kReservedSize); |
| EXPECT_EQ(output.buffer().data() + kReservedSize, payload.data()); |
| |
| EXPECT_EQ(Status::OK, channel.Send(output_buffer, kTestPacket)); |
| } |
| |
| } // namespace |
| } // namespace pw::rpc::internal |