celestia/test/integration/cmod_bin_ascii_roundtrip_te...

59 lines
1.8 KiB
C++

#include <algorithm>
#include <fstream>
#include <ios>
#include <iterator>
#include <memory>
#include <sstream>
#include <vector>
#include <catch.hpp>
#include <celcompat/filesystem.h>
#include <celmodel/model.h>
#include <celmodel/modelfile.h>
#include <celutil/reshandle.h>
TEST_CASE("CMOD binary to ASCII roundtrip", "[cmod] [integration]")
{
std::vector<fs::path> paths;
cmod::HandleGetter handleGetter = [&](const fs::path& path)
{
auto it = std::find(paths.cbegin(), paths.cend(), path);
if (it == paths.cend())
{
paths.push_back(path);
return static_cast<ResourceHandle>(paths.size() - 1);
}
else
{
return static_cast<ResourceHandle>(it - paths.cbegin());
}
};
cmod::SourceGetter sourceGetter = [&](ResourceHandle handle) { return paths[handle]; };
std::ifstream f("iss.cmod", std::ios::in | std::ios::binary);
REQUIRE(f.good());
std::stringstream sourceData;
sourceData << f.rdbuf();
std::unique_ptr<cmod::Model> modelFromBinary = cmod::LoadModel(sourceData, handleGetter);
REQUIRE(modelFromBinary != nullptr);
std::stringstream asciiData;
REQUIRE(cmod::SaveModelAscii(modelFromBinary.get(), asciiData, sourceGetter));
std::unique_ptr<cmod::Model> modelFromAscii = cmod::LoadModel(asciiData, handleGetter);
REQUIRE(modelFromAscii != nullptr);
std::stringstream roundtrippedData;
REQUIRE(cmod::SaveModelBinary(modelFromAscii.get(), roundtrippedData, sourceGetter));
sourceData.clear();
REQUIRE(sourceData.seekg(0, std::ios_base::beg).good());
std::istreambuf_iterator<char> end;
REQUIRE(std::equal(std::istreambuf_iterator<char>(sourceData), end,
std::istreambuf_iterator<char>(roundtrippedData), end));
}