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#!/usr/bin/env python3
"""Run a real document through multiple in-process Pure domains and stores."""
import argparse
import hashlib
import json
from pathlib import Path
import subprocess
import tempfile
def run(*args, code=0):
result = subprocess.run([str(arg) for arg in args], capture_output=True, timeout=30)
if result.returncode != code:
raise AssertionError((result.args, result.returncode, code, result.stderr[-500:]))
return result
def edit(binary, store, key, revision, offset, remove, file):
result = run(binary, '--store', store, 'edit', key, revision, offset, remove, file)
return json.loads(result.stdout)['revision']
def show(binary, store, key, revision, body):
result = run(binary, '--store', store, 'show', key)
assert result.stdout == body
assert json.loads(result.stderr)['revision'] == str(revision)
def main():
parser = argparse.ArgumentParser(description=__doc__)
parser.add_argument('--mirror', type=Path, required=True)
parser.add_argument('--editor', type=Path, required=True)
parser.add_argument('--rss-helper', type=Path)
parser.add_argument('--scratch-parent', type=Path)
parser.add_argument('--output', type=Path)
args = parser.parse_args()
if args.output and args.output.exists():
parser.error('evidence file already exists')
mirror, editor = args.mirror.resolve(), args.editor.resolve()
if args.scratch_parent:
args.scratch_parent.mkdir(parents=True, exist_ok=True)
with tempfile.TemporaryDirectory(prefix='pure-mirror-',
dir=args.scratch_parent.resolve() if args.scratch_parent else None) as name:
root = Path(name)
source, left, right = root / 'source', root / 'left', root / 'right'
initial = b'A' * 1_048_576
changed = initial[:-1] + b'Z'
input_file, patch, empty = root / 'initial', root / 'patch', root / 'empty'
input_file.write_bytes(initial)
patch.write_bytes(b'Z')
empty.write_bytes(b'')
assert edit(editor, source, 'document', 0, 0, 0, input_file) == '1'
first = json.loads(run(mirror, source, 'document', left, 'document', 0,
right, 'document', 0).stdout)
assert first['source_revision'] == '1' and first['bytes'] == len(initial)
assert [target['status'] for target in first['targets']] == ['ok', 'ok']
show(editor, left, 'document', 1, initial)
show(editor, right, 'document', 1, initial)
assert edit(editor, source, 'document', 1, len(initial) - 1, 1, patch) == '2'
show(editor, right, 'document', 1, initial)
partial = json.loads(run(mirror, source, 'document', left, 'document', 1,
right, 'document', 0, code=3).stdout)
assert [target['status'] for target in partial['targets']] == ['ok', 'conflict']
show(editor, left, 'document', 2, changed)
show(editor, right, 'document', 1, initial)
recovered = json.loads(run(mirror, source, 'document', right, 'document', 1).stdout)
assert recovered['targets'][0]['revision'] == '2'
show(editor, right, 'document', 2, changed)
assert edit(editor, source, 'empty', 0, 0, 0, empty) == '1'
assert json.loads(run(mirror, source, 'empty', left, 'empty', 0).stdout)['bytes'] == 0
show(editor, left, 'empty', 1, b'')
zero_budget = root / 'zero-budget'
assert json.loads(run(mirror, '--target-budget', 0, source, 'empty',
zero_budget, 'empty', 0).stdout)['targets'][0]['status'] == 'ok'
show(editor, zero_budget, 'empty', 1, b'')
low_budget = root / 'low-budget'
refused = json.loads(run(mirror, '--target-budget', 1024, source,
'document', low_budget, 'document', 0, code=2).stdout)
assert refused == {'admission_status': 'budget', 'target_index': 0}
assert not list(low_budget.glob('obj-*'))
rejected_store = root / 'rejected'
rejected = json.loads(run(mirror, source, 'document', rejected_store,
'document', 0, right, 'bad/key', 0, code=2).stdout)
assert rejected == {'admission_status': 'invalid', 'target_index': 1}
assert not list(rejected_store.glob('obj-*'))
show(editor, right, 'document', 2, changed)
missing_store = root / 'missing-target'
missing = json.loads(run(mirror, source, 'absent', missing_store,
'document', 0, code=2).stdout)
assert missing == {'source_status': 'not_found'} and not missing_store.exists()
measured = None
fanout = [root / f'fanout-{index}' for index in range(8)]
fanout_args = [item for store in fanout for item in (store, 'document', 0)]
if args.rss_helper:
third, fourth = root / 'third', root / 'fourth'
measured = json.loads(run(args.rss_helper.resolve(), mirror, source,
'document', third, 'document', 0,
fourth, 'document', 0).stdout)
assert measured['exit_code'] == 0
show(editor, third, 'document', 1, changed)
show(editor, fourth, 'document', 1, changed)
fanout_rss = json.loads(run(args.rss_helper.resolve(), mirror, source,
'document', *fanout_args).stdout)
assert fanout_rss['exit_code'] == 0
else:
fanout_result = json.loads(run(mirror, source, 'document', *fanout_args).stdout)
assert len(fanout_result['targets']) == 8
assert all(target['status'] == 'ok' for target in fanout_result['targets'])
fanout_rss = None
for store in fanout:
show(editor, store, 'document', 1, changed)
result = {'passed': True, 'source_body_sha256': hashlib.sha256(changed).hexdigest(),
'mirror_sha256': hashlib.sha256(mirror.read_bytes()).hexdigest(),
'editor_sha256': hashlib.sha256(editor.read_bytes()).hexdigest(),
'source_one_mib_to_two_domains': first,
'independent_partial_conflict': partial,
'conflict_recovered_revision': recovered['targets'][0]['revision'],
'empty_body_forwarded': True,
'target_budget_checked_before_document_write': True,
'all_admissions_before_document_writes': True,
'source_failure_before_target_creation': True,
'one_mib_two_target_peak_rss': measured,
'one_mib_eight_targets_verified': True,
'one_mib_eight_target_peak_rss': fanout_rss}
body = json.dumps(result, indent=2) + '\n'
if args.output:
args.output.parent.mkdir(parents=True, exist_ok=True)
args.output.write_text(body)
print(body, end='')
if __name__ == '__main__':
main()
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