Init: Migrate SimpleRemoter (Since v1.3.1) to Gitea
This commit is contained in:
yuanyuanxiang
660
test/unit/network/PacketFragmentTest.cpp
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660
test/unit/network/PacketFragmentTest.cpp
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/**
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* @file PacketFragmentTest.cpp
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* @brief 粘包/分包处理测试
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*
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* 测试覆盖：
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* - 完整包接收和解析
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* - 分包（不完整包）处理
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* - 粘包（多个包粘在一起）处理
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* - 混合场景测试
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* - 边界条件处理
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*/
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#include <gtest/gtest.h>
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#include <cstring>
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#include <cstdint>
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#include <vector>
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#include <queue>
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#include <functional>
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// ============================================
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// 协议常量
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// ============================================
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const int FLAG_LENGTH = 8;
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const int HDR_LENGTH = 16; // FLAG(8) + PackedLen(4) + OrigLen(4)
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// ============================================
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// 简化版 CBuffer（测试专用）
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// ============================================
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class TestBuffer {
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public:
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TestBuffer() {}
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void WriteBuffer(const uint8_t* data, size_t len) {
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m_data.insert(m_data.end(), data, data + len);
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}
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size_t ReadBuffer(uint8_t* dst, size_t len) {
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size_t toRead = std::min(len, m_data.size());
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if (toRead > 0) {
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memcpy(dst, m_data.data(), toRead);
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m_data.erase(m_data.begin(), m_data.begin() + toRead);
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}
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return toRead;
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}
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void Skip(size_t len) {
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size_t toSkip = std::min(len, m_data.size());
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m_data.erase(m_data.begin(), m_data.begin() + toSkip);
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}
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size_t GetBufferLength() const {
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return m_data.size();
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}
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const uint8_t* GetBuffer(size_t pos = 0) const {
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if (pos >= m_data.size()) return nullptr;
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return m_data.data() + pos;
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}
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bool CopyBuffer(uint8_t* dst, size_t pos, size_t len) const {
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if (pos + len > m_data.size()) return false;
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memcpy(dst, m_data.data() + pos, len);
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return true;
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}
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void Clear() {
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m_data.clear();
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}
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private:
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std::vector<uint8_t> m_data;
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};
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// ============================================
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// 数据包构建辅助函数
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// ============================================
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#pragma pack(push, 1)
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struct PacketHeader {
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char flag[FLAG_LENGTH];
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uint32_t packedLength; // 包含头部的总长度
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uint32_t originalLength; // 原始数据长度
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};
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#pragma pack(pop)
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std::vector<uint8_t> BuildPacket(const std::vector<uint8_t>& payload, uint8_t key = 0x42) {
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std::vector<uint8_t> packet(HDR_LENGTH + payload.size());
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PacketHeader* hdr = reinterpret_cast<PacketHeader*>(packet.data());
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memcpy(hdr->flag, "HELL", 4);
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hdr->flag[6] = key;
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hdr->flag[7] = ~key;
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hdr->packedLength = static_cast<uint32_t>(HDR_LENGTH + payload.size());
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hdr->originalLength = static_cast<uint32_t>(payload.size());
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if (!payload.empty()) {
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memcpy(packet.data() + HDR_LENGTH, payload.data(), payload.size());
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}
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return packet;
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}
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std::vector<uint8_t> BuildPacketWithData(size_t dataSize, uint8_t fillByte = 0xAA) {
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std::vector<uint8_t> payload(dataSize, fillByte);
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return BuildPacket(payload);
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}
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// ============================================
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// 粘包/分包处理器（模拟 OnServerReceiving 逻辑）
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// ============================================
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class PacketProcessor {
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public:
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using PacketCallback = std::function<void(const std::vector<uint8_t>&)>;
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PacketProcessor(PacketCallback callback) : m_callback(callback) {}
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// 接收数据（模拟网络接收）
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void OnReceive(const uint8_t* data, size_t len) {
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m_buffer.WriteBuffer(data, len);
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ProcessBuffer();
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}
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// 获取待处理的字节数
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size_t GetPendingBytes() const {
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return m_buffer.GetBufferLength();
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}
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// 获取已处理的包数量
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size_t GetProcessedCount() const {
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return m_processedCount;
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}
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private:
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void ProcessBuffer() {
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while (m_buffer.GetBufferLength() >= HDR_LENGTH) {
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// 验证头部
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const uint8_t* buf = m_buffer.GetBuffer();
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if (memcmp(buf, "HELL", 4) != 0) {
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// 无效头部，跳过一个字节重试
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m_buffer.Skip(1);
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continue;
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}
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// 读取包长度
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uint32_t packedLength;
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m_buffer.CopyBuffer(reinterpret_cast<uint8_t*>(&packedLength),
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FLAG_LENGTH, sizeof(uint32_t));
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// 检查长度有效性
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if (packedLength < HDR_LENGTH || packedLength > 100 * 1024 * 1024) {
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// 无效长度，跳过头部
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m_buffer.Skip(FLAG_LENGTH);
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continue;
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}
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// 检查包是否完整
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if (m_buffer.GetBufferLength() < packedLength) {
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// 不完整，等待更多数据
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break;
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}
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// 读取完整包
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std::vector<uint8_t> packet(packedLength);
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m_buffer.ReadBuffer(packet.data(), packedLength);
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// 提取 payload
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std::vector<uint8_t> payload(packet.begin() + HDR_LENGTH, packet.end());
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m_callback(payload);
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m_processedCount++;
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}
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}
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TestBuffer m_buffer;
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PacketCallback m_callback;
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size_t m_processedCount = 0;
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};
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// ============================================
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// 完整包接收测试
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// ============================================
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class CompletePacketTest : public ::testing::Test {
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protected:
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std::vector<std::vector<uint8_t>> receivedPackets;
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void SetUp() override {
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receivedPackets.clear();
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}
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PacketProcessor::PacketCallback GetCallback() {
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return [this](const std::vector<uint8_t>& payload) {
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receivedPackets.push_back(payload);
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};
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}
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};
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TEST_F(CompletePacketTest, SinglePacket) {
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PacketProcessor processor(GetCallback());
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std::vector<uint8_t> payload = {0x01, 0x02, 0x03, 0x04};
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auto packet = BuildPacket(payload);
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processor.OnReceive(packet.data(), packet.size());
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ASSERT_EQ(receivedPackets.size(), 1u);
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EXPECT_EQ(receivedPackets[0], payload);
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EXPECT_EQ(processor.GetPendingBytes(), 0u);
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}
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TEST_F(CompletePacketTest, EmptyPayload) {
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PacketProcessor processor(GetCallback());
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std::vector<uint8_t> payload;
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auto packet = BuildPacket(payload);
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processor.OnReceive(packet.data(), packet.size());
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ASSERT_EQ(receivedPackets.size(), 1u);
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EXPECT_TRUE(receivedPackets[0].empty());
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}
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TEST_F(CompletePacketTest, LargePayload) {
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PacketProcessor processor(GetCallback());
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std::vector<uint8_t> payload(64 * 1024); // 64 KB
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for (size_t i = 0; i < payload.size(); ++i) {
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payload[i] = static_cast<uint8_t>(i & 0xFF);
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}
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auto packet = BuildPacket(payload);
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processor.OnReceive(packet.data(), packet.size());
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ASSERT_EQ(receivedPackets.size(), 1u);
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EXPECT_EQ(receivedPackets[0], payload);
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}
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// ============================================
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// 分包（不完整包）测试
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// ============================================
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class FragmentedPacketTest : public ::testing::Test {
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protected:
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std::vector<std::vector<uint8_t>> receivedPackets;
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PacketProcessor::PacketCallback GetCallback() {
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return [this](const std::vector<uint8_t>& payload) {
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receivedPackets.push_back(payload);
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};
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}
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};
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TEST_F(FragmentedPacketTest, TwoFragments) {
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PacketProcessor processor(GetCallback());
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std::vector<uint8_t> payload = {0xAA, 0xBB, 0xCC, 0xDD};
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auto packet = BuildPacket(payload);
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// 分两次发送
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size_t half = packet.size() / 2;
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processor.OnReceive(packet.data(), half);
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EXPECT_EQ(receivedPackets.size(), 0u);
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EXPECT_EQ(processor.GetPendingBytes(), half);
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processor.OnReceive(packet.data() + half, packet.size() - half);
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ASSERT_EQ(receivedPackets.size(), 1u);
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EXPECT_EQ(receivedPackets[0], payload);
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}
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TEST_F(FragmentedPacketTest, ManyFragments) {
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PacketProcessor processor(GetCallback());
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std::vector<uint8_t> payload(100);
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for (size_t i = 0; i < payload.size(); ++i) {
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payload[i] = static_cast<uint8_t>(i);
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}
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auto packet = BuildPacket(payload);
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// 每次发送 10 字节
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for (size_t i = 0; i < packet.size(); i += 10) {
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size_t len = std::min(size_t(10), packet.size() - i);
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processor.OnReceive(packet.data() + i, len);
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}
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ASSERT_EQ(receivedPackets.size(), 1u);
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EXPECT_EQ(receivedPackets[0], payload);
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}
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TEST_F(FragmentedPacketTest, OnlyHeader) {
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PacketProcessor processor(GetCallback());
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std::vector<uint8_t> payload = {0x01, 0x02};
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auto packet = BuildPacket(payload);
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// 只发送头部
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processor.OnReceive(packet.data(), HDR_LENGTH);
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EXPECT_EQ(receivedPackets.size(), 0u);
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EXPECT_EQ(processor.GetPendingBytes(), HDR_LENGTH);
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// 发送剩余数据
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processor.OnReceive(packet.data() + HDR_LENGTH, packet.size() - HDR_LENGTH);
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ASSERT_EQ(receivedPackets.size(), 1u);
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}
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TEST_F(FragmentedPacketTest, PartialHeader) {
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PacketProcessor processor(GetCallback());
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std::vector<uint8_t> payload = {0xFF};
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auto packet = BuildPacket(payload);
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// 发送不完整的头部
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processor.OnReceive(packet.data(), 4); // 只有 "HELL"
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EXPECT_EQ(receivedPackets.size(), 0u);
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// 发送剩余部分
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processor.OnReceive(packet.data() + 4, packet.size() - 4);
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ASSERT_EQ(receivedPackets.size(), 1u);
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}
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// ============================================
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// 粘包测试
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// ============================================
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class StickyPacketTest : public ::testing::Test {
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protected:
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std::vector<std::vector<uint8_t>> receivedPackets;
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PacketProcessor::PacketCallback GetCallback() {
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return [this](const std::vector<uint8_t>& payload) {
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receivedPackets.push_back(payload);
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};
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}
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};
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TEST_F(StickyPacketTest, TwoPacketsStuckTogether) {
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PacketProcessor processor(GetCallback());
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std::vector<uint8_t> payload1 = {0x11, 0x22};
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std::vector<uint8_t> payload2 = {0x33, 0x44, 0x55};
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auto packet1 = BuildPacket(payload1);
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auto packet2 = BuildPacket(payload2);
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// 合并两个包
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std::vector<uint8_t> combined;
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combined.insert(combined.end(), packet1.begin(), packet1.end());
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combined.insert(combined.end(), packet2.begin(), packet2.end());
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processor.OnReceive(combined.data(), combined.size());
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ASSERT_EQ(receivedPackets.size(), 2u);
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EXPECT_EQ(receivedPackets[0], payload1);
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EXPECT_EQ(receivedPackets[1], payload2);
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}
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TEST_F(StickyPacketTest, ThreePacketsStuckTogether) {
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PacketProcessor processor(GetCallback());
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std::vector<uint8_t> payload1 = {0x01};
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std::vector<uint8_t> payload2 = {0x02, 0x03};
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std::vector<uint8_t> payload3 = {0x04, 0x05, 0x06};
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auto packet1 = BuildPacket(payload1);
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auto packet2 = BuildPacket(payload2);
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auto packet3 = BuildPacket(payload3);
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// 合并三个包
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std::vector<uint8_t> combined;
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combined.insert(combined.end(), packet1.begin(), packet1.end());
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combined.insert(combined.end(), packet2.begin(), packet2.end());
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combined.insert(combined.end(), packet3.begin(), packet3.end());
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processor.OnReceive(combined.data(), combined.size());
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ASSERT_EQ(receivedPackets.size(), 3u);
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EXPECT_EQ(receivedPackets[0], payload1);
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EXPECT_EQ(receivedPackets[1], payload2);
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EXPECT_EQ(receivedPackets[2], payload3);
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}
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TEST_F(StickyPacketTest, ManyPacketsStuckTogether) {
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PacketProcessor processor(GetCallback());
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std::vector<uint8_t> combined;
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const int numPackets = 100;
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for (int i = 0; i < numPackets; ++i) {
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std::vector<uint8_t> payload(i % 10 + 1, static_cast<uint8_t>(i));
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auto packet = BuildPacket(payload);
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combined.insert(combined.end(), packet.begin(), packet.end());
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}
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processor.OnReceive(combined.data(), combined.size());
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EXPECT_EQ(receivedPackets.size(), numPackets);
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}
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// ============================================
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// 混合场景测试
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// ============================================
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class MixedScenarioTest : public ::testing::Test {
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protected:
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std::vector<std::vector<uint8_t>> receivedPackets;
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PacketProcessor::PacketCallback GetCallback() {
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return [this](const std::vector<uint8_t>& payload) {
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receivedPackets.push_back(payload);
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};
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}
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};
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TEST_F(MixedScenarioTest, OneAndHalfPackets) {
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PacketProcessor processor(GetCallback());
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std::vector<uint8_t> payload1 = {0xAA, 0xBB};
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std::vector<uint8_t> payload2 = {0xCC, 0xDD, 0xEE, 0xFF};
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auto packet1 = BuildPacket(payload1);
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auto packet2 = BuildPacket(payload2);
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// 发送完整包1 + 半个包2
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std::vector<uint8_t> firstSend;
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firstSend.insert(firstSend.end(), packet1.begin(), packet1.end());
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firstSend.insert(firstSend.end(), packet2.begin(), packet2.begin() + packet2.size() / 2);
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processor.OnReceive(firstSend.data(), firstSend.size());
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EXPECT_EQ(receivedPackets.size(), 1u); // 只处理了包1
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// 发送剩余的半个包2
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processor.OnReceive(packet2.data() + packet2.size() / 2, packet2.size() - packet2.size() / 2);
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ASSERT_EQ(receivedPackets.size(), 2u);
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EXPECT_EQ(receivedPackets[0], payload1);
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EXPECT_EQ(receivedPackets[1], payload2);
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}
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TEST_F(MixedScenarioTest, HalfPacketThenOneAndHalf) {
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PacketProcessor processor(GetCallback());
|
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std::vector<uint8_t> payload1 = {0x11};
|
||||
std::vector<uint8_t> payload2 = {0x22, 0x33};
|
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auto packet1 = BuildPacket(payload1);
|
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auto packet2 = BuildPacket(payload2);
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|
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// 发送半个包1
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processor.OnReceive(packet1.data(), packet1.size() / 2);
|
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EXPECT_EQ(receivedPackets.size(), 0u);
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// 发送剩余包1 + 完整包2
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std::vector<uint8_t> secondSend;
|
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secondSend.insert(secondSend.end(), packet1.begin() + packet1.size() / 2, packet1.end());
|
||||
secondSend.insert(secondSend.end(), packet2.begin(), packet2.end());
|
||||
|
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processor.OnReceive(secondSend.data(), secondSend.size());
|
||||
ASSERT_EQ(receivedPackets.size(), 2u);
|
||||
}
|
||||
|
||||
TEST_F(MixedScenarioTest, RandomChunkSizes) {
|
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PacketProcessor processor(GetCallback());
|
||||
|
||||
// 准备多个包
|
||||
std::vector<std::vector<uint8_t>> payloads;
|
||||
std::vector<uint8_t> allData;
|
||||
|
||||
for (int i = 0; i < 10; ++i) {
|
||||
std::vector<uint8_t> payload(i * 5 + 10, static_cast<uint8_t>(i));
|
||||
payloads.push_back(payload);
|
||||
auto packet = BuildPacket(payload);
|
||||
allData.insert(allData.end(), packet.begin(), packet.end());
|
||||
}
|
||||
|
||||
// 使用"随机"大小的块发送
|
||||
size_t chunkSizes[] = {1, 7, 15, 16, 17, 31, 32, 33, 64, 128};
|
||||
size_t pos = 0;
|
||||
size_t chunkIdx = 0;
|
||||
|
||||
while (pos < allData.size()) {
|
||||
size_t chunkSize = chunkSizes[chunkIdx % (sizeof(chunkSizes) / sizeof(chunkSizes[0]))];
|
||||
size_t len = std::min(chunkSize, allData.size() - pos);
|
||||
processor.OnReceive(allData.data() + pos, len);
|
||||
pos += len;
|
||||
chunkIdx++;
|
||||
}
|
||||
|
||||
ASSERT_EQ(receivedPackets.size(), payloads.size());
|
||||
for (size_t i = 0; i < payloads.size(); ++i) {
|
||||
EXPECT_EQ(receivedPackets[i], payloads[i]) << "Mismatch at packet " << i;
|
||||
}
|
||||
}
|
||||
|
||||
// ============================================
|
||||
// 边界条件测试
|
||||
// ============================================
|
||||
|
||||
class PacketBoundaryTest : public ::testing::Test {
|
||||
protected:
|
||||
std::vector<std::vector<uint8_t>> receivedPackets;
|
||||
|
||||
PacketProcessor::PacketCallback GetCallback() {
|
||||
return [this](const std::vector<uint8_t>& payload) {
|
||||
receivedPackets.push_back(payload);
|
||||
};
|
||||
}
|
||||
};
|
||||
|
||||
TEST_F(PacketBoundaryTest, ExactlyHdrLength) {
|
||||
PacketProcessor processor(GetCallback());
|
||||
|
||||
// 只有头部，无 payload
|
||||
std::vector<uint8_t> packet(HDR_LENGTH);
|
||||
PacketHeader* hdr = reinterpret_cast<PacketHeader*>(packet.data());
|
||||
memcpy(hdr->flag, "HELL", 4);
|
||||
hdr->flag[6] = 0x42;
|
||||
hdr->flag[7] = ~0x42;
|
||||
hdr->packedLength = HDR_LENGTH;
|
||||
hdr->originalLength = 0;
|
||||
|
||||
processor.OnReceive(packet.data(), packet.size());
|
||||
|
||||
ASSERT_EQ(receivedPackets.size(), 1u);
|
||||
EXPECT_TRUE(receivedPackets[0].empty());
|
||||
}
|
||||
|
||||
TEST_F(PacketBoundaryTest, SingleBytePayload) {
|
||||
PacketProcessor processor(GetCallback());
|
||||
|
||||
std::vector<uint8_t> payload = {0xFF};
|
||||
auto packet = BuildPacket(payload);
|
||||
|
||||
processor.OnReceive(packet.data(), packet.size());
|
||||
|
||||
ASSERT_EQ(receivedPackets.size(), 1u);
|
||||
EXPECT_EQ(receivedPackets[0].size(), 1u);
|
||||
EXPECT_EQ(receivedPackets[0][0], 0xFF);
|
||||
}
|
||||
|
||||
TEST_F(PacketBoundaryTest, ByteByByteReceive) {
|
||||
PacketProcessor processor(GetCallback());
|
||||
|
||||
std::vector<uint8_t> payload = {0x12, 0x34, 0x56};
|
||||
auto packet = BuildPacket(payload);
|
||||
|
||||
// 每次接收 1 字节
|
||||
for (size_t i = 0; i < packet.size(); ++i) {
|
||||
processor.OnReceive(packet.data() + i, 1);
|
||||
}
|
||||
|
||||
ASSERT_EQ(receivedPackets.size(), 1u);
|
||||
EXPECT_EQ(receivedPackets[0], payload);
|
||||
}
|
||||
|
||||
// ============================================
|
||||
// 数据完整性测试
|
||||
// ============================================
|
||||
|
||||
class DataIntegrityTest : public ::testing::Test {
|
||||
protected:
|
||||
std::vector<std::vector<uint8_t>> receivedPackets;
|
||||
|
||||
PacketProcessor::PacketCallback GetCallback() {
|
||||
return [this](const std::vector<uint8_t>& payload) {
|
||||
receivedPackets.push_back(payload);
|
||||
};
|
||||
}
|
||||
};
|
||||
|
||||
TEST_F(DataIntegrityTest, BinaryData) {
|
||||
PacketProcessor processor(GetCallback());
|
||||
|
||||
// 包含所有字节值的 payload
|
||||
std::vector<uint8_t> payload(256);
|
||||
for (int i = 0; i < 256; ++i) {
|
||||
payload[i] = static_cast<uint8_t>(i);
|
||||
}
|
||||
auto packet = BuildPacket(payload);
|
||||
|
||||
processor.OnReceive(packet.data(), packet.size());
|
||||
|
||||
ASSERT_EQ(receivedPackets.size(), 1u);
|
||||
EXPECT_EQ(receivedPackets[0], payload);
|
||||
}
|
||||
|
||||
TEST_F(DataIntegrityTest, AllZeros) {
|
||||
PacketProcessor processor(GetCallback());
|
||||
|
||||
std::vector<uint8_t> payload(100, 0x00);
|
||||
auto packet = BuildPacket(payload);
|
||||
|
||||
processor.OnReceive(packet.data(), packet.size());
|
||||
|
||||
ASSERT_EQ(receivedPackets.size(), 1u);
|
||||
for (uint8_t b : receivedPackets[0]) {
|
||||
EXPECT_EQ(b, 0x00);
|
||||
}
|
||||
}
|
||||
|
||||
TEST_F(DataIntegrityTest, AllOnes) {
|
||||
PacketProcessor processor(GetCallback());
|
||||
|
||||
std::vector<uint8_t> payload(100, 0xFF);
|
||||
auto packet = BuildPacket(payload);
|
||||
|
||||
processor.OnReceive(packet.data(), packet.size());
|
||||
|
||||
ASSERT_EQ(receivedPackets.size(), 1u);
|
||||
for (uint8_t b : receivedPackets[0]) {
|
||||
EXPECT_EQ(b, 0xFF);
|
||||
}
|
||||
}
|
||||
|
||||
// ============================================
|
||||
// 性能相关测试
|
||||
// ============================================
|
||||
|
||||
class PacketPerformanceTest : public ::testing::Test {
|
||||
protected:
|
||||
size_t packetCount = 0;
|
||||
|
||||
PacketProcessor::PacketCallback GetCallback() {
|
||||
return [this](const std::vector<uint8_t>& payload) {
|
||||
packetCount++;
|
||||
};
|
||||
}
|
||||
};
|
||||
|
||||
TEST_F(PacketPerformanceTest, ManySmallPackets) {
|
||||
PacketProcessor processor(GetCallback());
|
||||
|
||||
const int numPackets = 10000;
|
||||
std::vector<uint8_t> allData;
|
||||
|
||||
for (int i = 0; i < numPackets; ++i) {
|
||||
std::vector<uint8_t> payload = {static_cast<uint8_t>(i & 0xFF)};
|
||||
auto packet = BuildPacket(payload);
|
||||
allData.insert(allData.end(), packet.begin(), packet.end());
|
||||
}
|
||||
|
||||
processor.OnReceive(allData.data(), allData.size());
|
||||
|
||||
EXPECT_EQ(packetCount, numPackets);
|
||||
}
|
||||
|
||||
TEST_F(PacketPerformanceTest, LargePacketInSmallChunks) {
|
||||
PacketProcessor processor(GetCallback());
|
||||
|
||||
std::vector<uint8_t> payload(100 * 1024); // 100 KB
|
||||
for (size_t i = 0; i < payload.size(); ++i) {
|
||||
payload[i] = static_cast<uint8_t>(i & 0xFF);
|
||||
}
|
||||
auto packet = BuildPacket(payload);
|
||||
|
||||
// 每次发送 1 KB
|
||||
const size_t chunkSize = 1024;
|
||||
for (size_t i = 0; i < packet.size(); i += chunkSize) {
|
||||
size_t len = std::min(chunkSize, packet.size() - i);
|
||||
processor.OnReceive(packet.data() + i, len);
|
||||
}
|
||||
|
||||
EXPECT_EQ(packetCount, 1u);
|
||||
}
|
||||
|
||||
Reference in New Issue
Block a user