Ludovic Marie
9edcbc2559
Oracles reference shared helper oracles (heightmap, level shape...) that javac could not find when only the entry files were listed. Also let chunkgen_bench list unsupported features (HORIZON_LIST_UNSUPPORTED=1). Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
71 lines
5.6 KiB
Python
71 lines
5.6 KiB
Python
#!/usr/bin/env python3
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"""Compare the native world-generation random adapter, counters, forks and seeds."""
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import argparse
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import itertools
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import json
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import os
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from pathlib import Path
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import platform
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import random
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import subprocess
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import zipfile
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try:
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from . import lab, test_rust_parity as base
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except ImportError:
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import lab
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import test_rust_parity as base
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def corpus():
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rng=random.Random(78336)
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integers=[-2147483648,-10001,-1,0,1,16,214748,214749,2147483647]
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longs=[-9223372036854775808,-1,0,1,9223372036854775807]+[rng.randrange(-2**63,2**63) for _ in range(20)]
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sample=[['int'],['long'],['bool'],['float'],['double']]
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for legacy in [False,True]:
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for layers in [1,2,3]:
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for warmup in [0,7]:
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for seed in longs:
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ops=[]
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for bits in [-2147483648,-65,-64,-33,-1,0,1,24,26,27,31,32,33,48,63,64,65,2147483647]:ops.append(['bits',bits])
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ops+=sample
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for bound in [-2147483648,-1,0,1,2,3,7,16,1073741825,2147483647]:ops += [['bound',bound],*sample]
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for x,z in zip(integers,reversed(integers)):
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ops += [['decoration',seed,x,z],*sample,['feature',seed,z,x],*sample,['large',seed,x,z],*sample,['salt',seed,x,z,x],*sample,['slime',x,z,seed,seed^0x123456789abcdef]]
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for operation in [['fork'],['pos',-2147483648,2147483647,-1],['pos_seed',seed],['pos_hash',[0,65,0xd800,0xdfff,0x20ac]]]:
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ops += [['root'],operation,*sample,['fork'],*sample,['seed',seed],['consume',17],*sample]
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ops += [['root'],['consume',-1],['consume',0],['consume',129],*sample]
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yield {'legacy':legacy,'layers':layers,'warmup':warmup,'seed':seed,'ops':ops}
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def main():
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parser=argparse.ArgumentParser(description=__doc__);parser.add_argument('--prepare',action='store_true');args=parser.parse_args()
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build=lab.LOCAL/'rust-worldgen-random-parity';build.mkdir(parents=True,exist_ok=True)
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report_path=build/'report.json';report_path.unlink(missing_ok=True)
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if args.prepare:lab.prepare()
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lock,jars,libraries=base.verify_artifacts()
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oracle=lab.ROOT/'mods/horizon/src/test/java/dev/horizonlab/parity/VanillaWorldgenRandomOracle.java'
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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/worldgen_random_fixture.rs']
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tested_sources=base.source_hashes(sources)
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fixtures=list(corpus());inputs=build/'inputs.txt';inputs.write_text(''.join(json.dumps(f,separators=(',',':'))+'\n' for f in fixtures),encoding='utf-8')
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fixture_paths=[inputs];tested_fixtures=base.source_hashes(fixture_paths)
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classes=build/'classes';classes.mkdir(exist_ok=True)
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def run(command,name):
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with (build/(name+'.log')).open('w',encoding='utf-8') as log:base.run(list(map(str,command)),stdout=log,stderr=subprocess.STDOUT)
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dependency_path=os.pathsep.join(map(str,libraries))
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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')
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run(['cargo','build','--release','-p','horizon-world','--example','worldgen_random_fixture'],'compile-rust')
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metadata=json.loads(subprocess.check_output(['cargo','metadata','--no-deps','--format-version','1'],cwd=lab.ROOT,text=True))
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binary=Path(metadata['target_directory'])/'release/examples'/('worldgen_random_fixture.exe' if os.name=='nt' else 'worldgen_random_fixture')
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run([binary,build],'rust');references=[]
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for side,jar in jars.items():
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run(['java','-Xmx512M','-cp',os.pathsep.join([str(classes),str(jar),dependency_path]),'dev.horizonlab.parity.VanillaWorldgenRandomOracle',side,build],side)
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reference=build/f'{side}.txt';matched=base.compare(reference,build/'rust.txt')
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references.append({'side':side,'jar_sha256':lab.digest(jar,'sha256'),'output_sha256':lab.digest(reference,'sha256'),'matched_output_lines':matched})
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print(f'{side}: {matched:,} worldgen-random output lines match Rust',flush=True)
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base.ensure_sources_unchanged(sources,tested_sources);base.ensure_sources_unchanged(fixture_paths,tested_fixtures)
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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),'random_modes':2,'wrapper_depths':[1,2,3],'operations':sum(len(f['ops']) for f in fixtures),'sources_sha256':tested_sources,'fixtures_sha256':tested_fixtures,'rust_output_sha256':lab.digest(build/'rust.txt','sha256'),'references':references,'scope':'Actual WorldgenRandom bit sampling over legacy and xoroshiro sources, nested wrappers, signed bit-width shifts, draw counters, valid/invalid bounds, reseeding, fork and positional-factory delegation. Decoration, per-feature, large-feature, salt and slime-chunk seeds exercise signed int/long overflow, extreme coordinates and inherited legacy multi-draw behavior. Gaussian samples, concurrent access and full chunk decoration remain pending.'}
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lab.write_json(report_path,report);print(f'Scoped worldgen-random parity passed: {report_path}')
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if __name__=='__main__':main()
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