Files
horizon/tools/test_combat_rules_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
5.6 KiB
Python

#!/usr/bin/env python3
"""Compare native armor, toughness and magic protection arithmetic 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 struct.pack('>f',v).hex()
def row(damage,armor,toughness,**kw):
f=dict(mode='armor',damage=bits(damage),armor=bits(armor),toughness=bits(toughness),weapon=False,server=False,after_weapon=True,after_server=True,empty=True,fail=-1,mutate_at=-1);f.update(kw);return f
values=[-float('inf'),-1e30,-25,-20,-8,-1,-0.,0.,1e-40,.1,1,2,4,8,20,25,40,1e30,float('inf'),float('nan')]
for damage in values:
for armor in values:
yield row(damage,armor,0,mode='magic')
for toughness in values:
for weapon,server,empty in [(False,False,True),(True,False,True),(True,True,True),(True,True,False)]:yield row(damage,armor,toughness,weapon=weapon,server=server,empty=empty)
for weapon in [False,True]:
for server in [False,True]:
for after_weapon in [False,True]:
for after_server in [False,True]:
for fail in range(-1,3):
for mutation in range(-1,3):yield row(17,20,8,weapon=weapon,server=server,after_weapon=after_weapon,after_server=after_server,fail=fail,mutate_at=mutation)
rng=random.Random(0x41524d4f52)
for _ in range(8000):
f=row(0,0,0,weapon=bool(rng.randrange(2)),server=bool(rng.randrange(2)),empty=bool(rng.randrange(2)),mode=rng.choice(['armor','magic']))
for key in ['damage','armor','toughness']:f[key]=f'{rng.getrandbits(32):08x}'
yield f
def main():
parser=argparse.ArgumentParser(description=__doc__);parser.add_argument('--prepare',action='store_true');args=parser.parse_args()
build=lab.LOCAL/'rust-combat-rules-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/VanillaCombatRulesOracle.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/combat_rules_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.VanillaCombatRulesOracle',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,'combat_rules_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:,} combat rules 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 CombatRules armor/toughness and magic protection arithmetic; null/empty/unenchanted weapons, nonserver/server branches, native no-enchantment helper with explicitly empty stack components, query order/mutations/failures, nonfinite/signed-zero and random float bit patterns. The armor-effectiveness enchantment hook is exposed but enchanted components, damage tags/equipment and the full damage pipeline remain pending.'}
lab.write_json(report_path,report);print(f'Scoped combat rules parity passed: {report_path}')
if __name__=='__main__':main()