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#include "vfs/trackedwrites.h"
#include <strings.h>
#include <gtest/gtest.h>
#include <algorithm>
#include <filesystem>
#include <fstream>
namespace fs = std::filesystem;
namespace
{
void writeText(const fs::path& path, const std::string& text)
{
fs::create_directories(path.parent_path());
std::ofstream out(path, std::ios::binary | std::ios::trunc);
ASSERT_TRUE(out.is_open());
out << text;
}
} // namespace
TEST(OverwriteDuplicates, DetectsIdenticalAndDifferentMatches)
{
const fs::path base = fs::temp_directory_path() / "fluorine_overwrite_dup_test";
fs::remove_all(base);
const fs::path overwrite = base / "overwrite";
const fs::path modA = base / "ModA";
const fs::path modB = base / "ModB";
writeText(overwrite / "SKSE/Plugins/Identical.ini", "same\n");
writeText(overwrite / "SKSE/Plugins/Different.ini", "overwrite\n");
writeText(overwrite / "SKSE/Plugins/OnlyOverwrite.ini", "only overwrite\n");
writeText(modA / "SKSE/Plugins/Identical.ini", "same\n");
writeText(modA / "SKSE/Plugins/Different.ini", "mod a\n");
writeText(modB / "SKSE/Plugins/Different.ini", "mod b wins\n");
TrackedWrites tracker;
const std::vector<std::pair<std::string, std::string>> mods = {
{"ModA", modA.string()},
{"ModB", modB.string()},
};
const auto duplicates = tracker.scanOverwriteDuplicates(overwrite.string(), mods);
ASSERT_EQ(duplicates.size(), 2u);
const auto identical = std::find_if(
duplicates.begin(), duplicates.end(),
[](const TrackedWrites::DuplicateEntry& entry) {
return entry.relative_path == "SKSE/Plugins/Identical.ini";
});
ASSERT_NE(identical, duplicates.end());
EXPECT_EQ(identical->mod_name, "ModA");
EXPECT_EQ(identical->state, TrackedWrites::DuplicateState::Identical);
const auto different = std::find_if(
duplicates.begin(), duplicates.end(),
[](const TrackedWrites::DuplicateEntry& entry) {
return entry.relative_path == "SKSE/Plugins/Different.ini";
});
ASSERT_NE(different, duplicates.end());
EXPECT_EQ(different->mod_name, "ModB");
EXPECT_EQ(different->state, TrackedWrites::DuplicateState::Different);
fs::remove_all(base);
}
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