Files
shopdb-flask/plugins/geenforce/parity.py
Cam Proudlock a9d0dfff4a Initial import: shopdb-flask multi-site asset platform
Flask + Vue rewrite of the classic-ASP shopdb, built as a plugin
framework so sister GE Aerospace sites can adopt it. Product version
0.7.0-pre-0.8.0, plugin contract 0.11.0, 966 backend tests.

Key entry points:
- docs/INSTALL-WINDOWS-IIS.md - tested Windows + IIS install runbook
  (own-site and subpath deployment methods)
- docs/PILOT-DEPLOY.md - production pilot: stand up + import + verify
- docs/IMPORT-API.md - schema-agnostic legacy data import contract
- scripts/site_imports/wjf/ - West Jefferson reference import loader
- docs/adr/ - twelve accepted architecture decision records
2026-07-14 07:58:51 -04:00

107 lines
4.1 KiB
Python

"""P1 behavioral-parity harness (Gate A).
Proves the model is lossless WITHOUT byte-diffing: for each manifest, import it
into in-memory rows and render it back out, then check that
1. every entry is field-for-field identical (engine-relevant fields only,
dropping _comment and key order), in the same order, AND
2. the same entries fire in the same order for a set of machine-profile
fixtures, using the same filter logic the engine uses (filters.py).
Runs with no database (build_scope produces detached ORM objects whose
relationship lists are read directly), so it is cheap to re-run and wrap in CI.
Output is one readable line per scope.
"""
import json
import os
from .importer import build_scope
from .serializer import scope_to_manifest, canonical_entry
from .filters import applicable_entry_names
_FIXTURES_PATH = os.path.join(os.path.dirname(__file__), 'parityfixtures.json')
def load_fixtures():
with open(_FIXTURES_PATH) as handle:
return json.load(handle)
def check_scope(scopename, phase, original, fixtures):
"""Compare an original manifest against its import+export round-trip."""
rebuilt = scope_to_manifest(build_scope(scopename, phase, original))
orig_apps = original.get('Applications') or []
rebuilt_apps = rebuilt.get('Applications') or []
# Check 0: scope-level fields (Version, Site) round-trip.
firstdiff = None
for key in ('Version', 'Site'):
if str(original.get(key) or '') != str(rebuilt.get(key) or ''):
firstdiff = (f'scope field {key}: '
f'{original.get(key)!r} vs {rebuilt.get(key)!r}')
break
scope_ok = firstdiff is None
# Check 1: field-identical, order-preserving.
identical = 0
if firstdiff is None and len(orig_apps) != len(rebuilt_apps):
firstdiff = (f'entry count {len(orig_apps)} vs {len(rebuilt_apps)}')
for i in range(min(len(orig_apps), len(rebuilt_apps))):
co = canonical_entry(orig_apps[i])
cr = canonical_entry(rebuilt_apps[i])
if co == cr:
identical += 1
elif firstdiff is None:
name = orig_apps[i].get('Name', f'#{i}')
diffkeys = sorted(
k for k in set(co) | set(cr) if co.get(k) != cr.get(k))
firstdiff = f'entry "{name}" differs on {diffkeys}'
# Check 2: same entries fire in the same order for each profile. Inject the
# scope phase so PCTypesStrict is honored only for preinstall (see filters).
profiles_same = 0
for base_profile in fixtures:
profile = {**base_profile, 'phase': phase}
if (applicable_entry_names(orig_apps, profile)
== applicable_entry_names(rebuilt_apps, profile)):
profiles_same += 1
elif firstdiff is None:
firstdiff = f'filter mismatch for profile {profile.get("label")}'
passed = (scope_ok
and identical == len(orig_apps) == len(rebuilt_apps)
and profiles_same == len(fixtures))
return {
'scopename': scopename,
'phase': phase,
'entries_total': len(orig_apps),
'entries_identical': identical,
'profiles_total': len(fixtures),
'profiles_same': profiles_same,
'passed': passed,
'firstdiff': firstdiff,
}
def run_parity(manifests, fixtures=None):
"""Run parity over a list of (scopename, phase, manifest_dict). Returns
(results, all_passed)."""
fixtures = fixtures if fixtures is not None else load_fixtures()
results = [check_scope(name, phase, manifest, fixtures)
for name, phase, manifest in manifests]
return results, all(r['passed'] for r in results)
def format_result(result):
"""One human-readable line for a scope result."""
status = 'PASS' if result['passed'] else 'FAIL'
line = (f"scope {result['scopename']:<28} "
f"entries {result['entries_identical']}/{result['entries_total']} identical "
f"profiles {result['profiles_same']}/{result['profiles_total']} same-fire "
f"{status}")
if not result['passed'] and result['firstdiff']:
line += f"\n -> {result['firstdiff']}"
return line