from pathlib import Path
p=Path('/tmp/erri-config-review-1509/tests/test_profile_config.py');s=p.read_text().replace('from policy_harness import ROOT, body, run','import os\nfrom pathlib import Path\nfrom policy_harness import ROOT, body, run').replace("p = ROOT/'addons/core/Scripts/Game/ERR/00_Core/ERR_ProfileConfig.c'","p = Path(os.environ.get('ERR_PROFILE_CONFIG_SOURCE', ROOT/'addons/core/Scripts/Game/ERR/00_Core/ERR_ProfileConfig.c'))")
# Existing transaction cases model well-formed sections; specialized validation is below.
s=s.replace(' static string Encode(Map values)', ' static bool ContentsValid(Map){return true;}\n static string Encode(Map values)')
s += r'''
# Execute actual shared Save and Commit, with a small token document store.
# JSON lexing and section parsers are explicit doubles: malformed terrain is a
# valid JSON object rejected by the real TerrainPreference.Parse predicate.
# No native filesystem atomicity or full JsonLoadContext implementation claim.
def translate(method):
 for before, after in [
  ('map<string, string>', 'Map'), ('new Map()', 'Map()'),
  ('FileHandle file','FileHandle* file'), ('file.','file->'),
  ('FileIO.','FileIO::'), ('FileMode.','FileMode::'), ('Replication.','Replication::'),
  ('JsonSaveContext json','JsonSaveContext& json')]:
  method=method.replace(before,after)
 method=method.replace('foreach (string key, string value : changed)', 'for (auto [key,value] : changed)')
 method=method.replace('foreach (string path : LegacyPaths())', 'for (string path : LegacyPaths())')
 return method
helper='static bool ContentsValid(Map) {return true;}'
if 'static bool ContentsValid(' in p.read_text(): helper=translate(body(p,'static bool ContentsValid('))
run(r"""
#include <cassert>
#include <map>
#include <string>
#include <vector>
#include <algorithm>
struct string:std::string{using std::string::string;string(std::string s):std::string(s){}bool IsEmpty(){return empty();}void TrimInPlace(){}};
struct Map:std::map<string,string>{using std::map<string,string>::map;bool Contains(string key){return count(key);}string Get(string key){return at(key);}void Set(string key,string value){(*this)[key]=value;}};
const string PATH="Escapists.json";
std::map<string,string> files;
std::map<string,Map> documents;
int serial=0,copies=0;
namespace Replication{bool server=true;bool IsServer(){return server;}}
namespace FileMode{int WRITE=1;}
struct FileHandle{string path;void Write(string data){files[path]=data;}void Close(){}};
namespace FileIO{
 FileHandle* OpenFile(string path,int){static FileHandle h;h.path=path;return &h;}
 bool FileExists(string path){return files.count(path);}
 bool DeleteFile(string path){return files.erase(path);}
 bool CopyFile(string from,string to){if(!files.count(from))return false;copies++;files[to]=files[from];return true;}
}
struct JsonSaveContext{string token;string SaveToString(){return token;}};
struct Store{
 static std::vector<string> LegacyPaths(){return {"mission","mods","factions","terrain","items","voice"};}
 static string Section(string path){return path;}
 static bool Ensure(){return true;}
 static string Encode(Map values){string id="doc"+std::to_string(++serial);documents[id]=values;return id;}
 static bool Split(string text,Map& values){if(!documents.count(text))return false;values=documents[text];return true;}
 static bool Valid(string section,string text){Map fields;if(!Split(text,fields))return false;return section!="terrain"||(fields.Contains("scenario")&&fields.Get("scenario")!="malformed");}
 static bool Document(string path,Map& values){return files.count(path)&&Split(files[path],values)&&values.Contains("configVersion")&&values.Get("configVersion")=="1";}
 static bool Same(Map a,Map b){return a==b;}
""" + helper + translate(body(p,'static bool Commit(')) + translate(body(p,'static bool Save(')) + r"""
};
int main(){
 auto validTerrain=Store::Encode({{"scenario","valid-saved-terrain"},{"futureTerrainKey","keep"}});
 auto invalidTerrain=Store::Encode({{"scenario","malformed"},{"futureTerrainKey","keep"}});
 auto mission=Store::Encode({{"timer","10"},{"unknownMissionKey","keep"}});
 auto changedMission=Store::Encode({{"timer","20"}});
 Map good={{"configVersion","1"},{"mission",mission},{"terrain",validTerrain},{"unknownRoot","keep"}},current=good,read;
 current.Set("terrain",invalidTerrain);string originalGood=Store::Encode(good),originalBad=Store::Encode(current);
 files[PATH]=originalBad;files[PATH+".bak"]=originalGood;
 // Owner would reject current terrain and accept backup. An unrelated save must
 // not destroy the only recovery document or report success with invalid data.
 assert(!Store::Valid("terrain",current.Get("terrain"))&&Store::Valid("terrain",good.Get("terrain")));
 JsonSaveContext change{changedMission};
 assert(!Store::Save("mission",change));
 assert(files[PATH]==originalBad&&files[PATH+".bak"]==originalGood&&copies==0);
 // Repair the section through its recovered menu value. Preserve the only good
 // backup; merge unknown fields and allow subsequent ordinary menu persistence.
 JsonSaveContext repair{validTerrain};assert(Store::Save("terrain",repair));
 assert(files[PATH+".bak"]==originalGood&&Store::Document(PATH,read));
 assert(read.Get("unknownRoot")=="keep");Map fields;assert(Store::Split(read.Get("terrain"),fields)&&fields.Get("futureTerrainKey")=="keep");
 string repaired=files[PATH];assert(Store::Save("mission",change));assert(files[PATH+".bak"]==repaired);
 assert(Store::Document(PATH,read)&&Store::Split(read.Get("mission"),fields));assert(fields.Get("timer")=="20"&&fields.Get("unknownMissionKey")=="keep");
 // Missing optional sections continue to use their owner defaults; unknown roots
 // are not subject to this version's validators.
 Map sparse={{"configVersion","1"},{"unrecognized","opaque"}};assert(Store::Commit(sparse));
 // Existing defaults and each known section are checked; no invalid first write.
 files.clear();copies=0;assert(!Store::Commit(current)&&files.empty()&&copies==0);
 // Updating an already healthy document retains ordinary last-valid backup.
 files[PATH]=originalGood;assert(Store::Save("mission",change));assert(files[PATH+".bak"]==originalGood);
}
""")
print('PASS: actual Save/Commit preserves semantically valid backup across unrelated menu edits and repairs; unknown fields/default sections retained; parsers and disk doubled')
'''
p.write_text(s)