Files
horizon/tools/test_synced_bytes_parity.py
Ludovic MarieandClaude Opus 5.5 0b581f9ffe Give each crate's probe example its own target name
horizon-client, horizon-world and horizon-protocol each had an example
named `probe`. Cargo copies every crate's examples into one
<profile>/examples/ directory, so parallel parity harnesses sharing a
target dir could run another crate's probe (CI parity run 40055656303:
command_parse ran the horizon-world dispatcher). The examples are now
client_probe, world_probe and protocol_probe ([[example]] in each
Cargo.toml; the files stay where they are), and every harness builds
and runs its own crate's name.

tools/parity.py recognises the new names when it counts the probes a
harness ran, and renames the old `probe` in recorded artifacts to the
crate's target (from the record's -p, else its probe sources), so the
prebuild still builds them instead of dropping them as unknown.

Co-Authored-By: Claude Opus 5.5 <[email protected]>
2026-10-24 08:08:18 +02:00

74 lines
6.0 KiB
Python

#!/usr/bin/env python3
"""Compare multiple synchronized byte fields, assignment and reentrant callbacks with vanilla."""
import argparse
import json
import os
from pathlib import Path
import platform
import subprocess
import random
import struct
import math
try:
from . import lab, test_rust_parity as base
except ImportError:
import lab
import test_rust_parity as base
def corpus():
def bits(v):return f'{v&255:02x}'
def value(id=8,v=0):return dict(id=id,value=bits(v))
def op(mode='set',id=8,v=0,**kw):
o=dict(mode=mode,id=id,value=bits(v),force=False,values=[],hook='none',other=17,other_value=bits(7),other_force=False,fail=-1,mask=1,flag=True);o.update(kw);return o
def row(initial,ops):return dict(initial=initial,ops=ops)
for start in range(256):
for mask in [-2147483648,-1,0,1,2,3,4,128,255,256,2147483647]:
for flag in [False,True]:
yield row([value(17),value(8,start)],[op('flag',mask=mask,flag=flag),op('defaults'),op('pack'),op('flag',mask=mask,flag=flag)])
for mode in ['set','assign','flag']:
for hook in ['none','pack','set','assign','flag']:
for fail in range(-1,6):
for other in [8,17]:
yield row([value(8),value(17)],[op(v=3),op(mode,v=5,values=[value(8,5),value(17,7),value(8,3)],hook=hook,other=other,mask=129,flag=False,fail=fail),op('pack'),op('defaults')])
rng=random.Random(0x53594e4342595445)
for _ in range(2000):
ids=[8]+rng.sample([i for i in range(64) if i!=8],rng.randrange(0,10));initial=[value(id,rng.randrange(256)) for id in ids];ops=[]
for __ in range(rng.randrange(5,35)):
ops.append(op(rng.choice(['set','set','get','pack','defaults','assign','flag']),rng.choice(ids+[255]),rng.randrange(256),force=bool(rng.randrange(2)),values=[value(rng.choice(ids+[255]),rng.randrange(256)) for ___ in range(rng.randrange(6))],hook=rng.choice(['none','pack','set','assign','flag']),other=rng.choice(ids),other_value=bits(rng.randrange(256)),other_force=bool(rng.randrange(2)),mask=rng.randrange(-2147483648,2147483648),flag=bool(rng.randrange(2)),fail=rng.choice([-1,-1,-1,0,1,2,3])))
yield row(initial,ops)
def main():
parser=argparse.ArgumentParser(description=__doc__);parser.add_argument('--prepare',action='store_true');args=parser.parse_args()
build=lab.LOCAL/'rust-synced-bytes-parity';build.mkdir(parents=True,exist_ok=True)
report_path=build/'report.json';report_path.unlink(missing_ok=True)
if args.prepare:lab.prepare()
lock,jars,libraries=base.verify_artifacts()
oracle=lab.ROOT/'mods/horizon/src/test/java/dev/horizonlab/parity/VanillaSyncedBytesOracle.java'
sources=[oracle,Path(__file__),lab.ROOT/'tools/test_rust_parity.py',lab.ROOT/'tools/lab.py',lab.ROOT/'Cargo.toml',lab.ROOT/'Cargo.lock',lab.ROOT/'crates/horizon-core/Cargo.toml',lab.ROOT/'crates/horizon-world/Cargo.toml',*sorted((lab.ROOT/'crates/horizon-core/src').rglob('*.rs')),*sorted((lab.ROOT/'crates/horizon-world/src').rglob('*.rs')),lab.ROOT/'crates/horizon-world/examples/probe/synced_bytes_fixture.rs']
tested_sources=base.source_hashes(sources)
classes=build/'classes';classes.mkdir(exist_ok=True)
def run(command,name):
with (build/(name+'.log')).open('w',encoding='utf-8') as log:base.run(list(map(str,command)),stdout=log,stderr=subprocess.STDOUT)
dependency_path=os.pathsep.join(map(str,libraries))
run(['javac','--release',lock['minecraft']['java_major'],'-proc:none','-sourcepath',str(lab.ROOT/'mods/horizon/src/test/java'),'-cp',str(jars['server'])+os.pathsep+dependency_path,'-d',classes,oracle],'compile-java')
def java(side,mode,path):
run(['java','-Xmx512M','-cp',os.pathsep.join([str(classes),str(jars[side]),dependency_path]),'dev.horizonlab.parity.VanillaSyncedBytesOracle',mode,path],side+'-'+mode)
fixtures=list(corpus());inputs=build/'inputs.txt';inputs.write_text(''.join(json.dumps(value,separators=(',',':'))+'\n' for value in fixtures),encoding='utf-8')
fixture_paths=[inputs];tested_fixtures=base.source_hashes(fixture_paths)
run(['cargo','build','--release','-p','horizon-world','--example','world_probe'],'compile-rust')
metadata=json.loads(subprocess.check_output(['cargo','metadata','--no-deps','--format-version','1'],cwd=lab.ROOT,text=True))
binary=Path(metadata['target_directory'])/'release/examples'/('world_probe.exe' if os.name=='nt' else 'world_probe')
run([binary,'synced_bytes_fixture',build],'rust');references=[]
for side,jar in jars.items():
java(side,side,build);reference=build/f'{side}.txt';matched=base.compare(reference,build/'rust.txt')
references.append({'side':side,'jar_sha256':lab.digest(jar,'sha256'),'output_sha256':lab.digest(reference,'sha256'),'matched_output_lines':matched})
print(f'{side}: {matched:,} synchronized byte output lines match Rust',flush=True)
base.ensure_sources_unchanged(sources,tested_sources);base.ensure_sources_unchanged(fixture_paths,tested_fixtures)
report={'schema':1,'minecraft':lock['minecraft']['version'],'manifest_sha1':lock['minecraft']['manifest_sha1'],'platform':platform.platform(),'java':subprocess.check_output(['java','--version'],text=True).splitlines()[0],'rustc':subprocess.check_output(['rustc','--version'],text=True).strip(),'fixtures':len(fixtures),'sources_sha256':tested_sources,'fixtures_sha256':tested_fixtures,'rust_output_sha256':lab.digest(build/'rust.txt','sha256'),'references':references,'scope':'Actual byte SynchedEntityData values and inherited LivingEntity using-item/offhand queries plus protected flag writes. Covers every initial byte, signed masks, ordered dirty/default output, assignment, reentrant flag/data writes, callback packing and failures before dirty marking. Rust shares a typed scalar implementation with existing synchronized floats. Heterogeneous serializer maps, entity schema/network codecs and full item-use/gameplay integration remain pending.'}
lab.write_json(report_path,report);print(f'Scoped synchronized byte parity passed: {report_path}')
if __name__=='__main__':main()