New cpp folder structure

Signed-off-by: Alexander Borsuk <me@alex.bio>

libs/tracking/tracking_fuzz_tests/tracking_fuzz_tests.cpp

@@ -0,0 +1,69 @@
+#include "tracking/protocol.hpp"
+
+#include "coding/traffic.hpp"
+
+#include "geometry/latlon.hpp"
+
+#include "base/logging.hpp"
+
+#include <cstdint>
+#include <iostream>
+#include <iterator>
+#include <vector>
+
+using namespace coding;
+using namespace tracking;
+
+namespace
+{
+template <typename T>
+T PopType(std::vector<uint8_t> & data)
+{
+  T t{};
+  if (data.empty())
+    return t;
+
+  if (data.size() < sizeof(T))
+  {
+    data.clear();
+    return t;
+  }
+
+  t = *reinterpret_cast<T *>(data.data());
+  data.erase(data.begin(), std::next(data.begin(), sizeof(T)));
+  return t;
+}
+
+TrafficGPSEncoder::DataPoint PopDataPoint(std::vector<uint8_t> & data)
+{
+  auto const timestamp = PopType<uint64_t>(data);
+  auto const lat = PopType<double>(data);
+  auto const lon = PopType<double>(data);
+  auto const traffic = PopType<uint8_t>(data);
+  return TrafficGPSEncoder::DataPoint(timestamp, ms::LatLon(lat, lon), traffic);
+}
+}  // namespace
+
+extern "C" int LLVMFuzzerTestOneInput(uint8_t const * data, size_t size)
+{
+  base::ScopedLogLevelChanger scopedLogLevelChanger(base::LCRITICAL);
+
+  std::vector<uint8_t> const dataVec(data, data + size);
+
+  auto dataVecToConv = dataVec;
+  Protocol::DataElementsVec dataElementsVec;
+  while (!dataVecToConv.empty())
+    dataElementsVec.push_back(PopDataPoint(dataVecToConv));
+  Protocol::DataElementsCirc dataElementsCirc(dataElementsVec.cbegin(), dataElementsVec.cend());
+
+  Protocol::DecodeHeader(dataVec);
+  for (auto const type : {Protocol::PacketType::Error, Protocol::PacketType::AuthV0,
+                          Protocol::PacketType::DataV0, Protocol::PacketType::DataV1})
+  {
+    Protocol::CreateDataPacket(dataElementsVec, type);
+    Protocol::CreateDataPacket(dataElementsCirc, type);
+    Protocol::DecodeAuthPacket(type, dataVec);
+    Protocol::DecodeDataPacket(type, dataVec);
+  }
+  return 0;
+}