product-recognition-demo/recognization/code/test_reconcile.py
kiyo9w 8f750c15c5 feat: price-tag UI, still-image tag passes, and honest tag evidence
Web client: price-tag boxes in a distinct style (teal, chip with the parsed
price), an OCR section in the product card showing the tag's price, name,
discount and the reconciliation verdict with both values, and a compliance strip
under the stage. The photo stage now draws the image into the canvas and uses the
same containment as the media, so boxes cannot drift from the product (they did:
the canvas stretched to the stage while the photo was contained).

Server fixes the browser runs forced out:
- Photo mode reconciled before identities existed, so every tag read "tag only".
  The tag bundle is cached with the still and classify re-reconciles against the
  identities it just produced, returning them per detection.
- The still path only ever read the first four bands (plan hands out two per
  call); it now drains every band, twice at different upscales so the vote has
  independent reads.
- Voting is confidence-weighted and a dead heat stays unread; the plausible
  shelf-price range is 10-9999, which stops a misread from becoming a ¥26,300
  price. The compliance coverage bar moved to 0.7 after 0.5 produced a false
  "group without price tag" on a shelf where every facing has one.

Measured on add/image6.jpg: 8 readable tags with names and prices, 942 ms for
the whole still, 7 real price mismatches, no false violations, and hints that
say plainly when a row could not be read.

Co-Authored-By: Devin <158243242+devin-ai-integration[bot]@users.noreply.github.com>
2026-09-24 14:11:23 +09:00

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"""
Contract tests for reconciliation and the compliance rule family.
Pure functions over evidence, so these run without OCR, weights, or a camera.
The rules that matter most here are the fail-closed ones: unreadable evidence
must never become a violation.
"""
from __future__ import annotations
import os
import sys
import unittest
current_dir = os.path.dirname(os.path.abspath(__file__))
if current_dir not in sys.path:
sys.path.insert(0, current_dir)
from reconcile import ( # noqa: E402
ComplianceSettings,
ComplianceTracker,
RECONCILED_CONFIRMED,
RECONCILED_MISMATCH,
RECONCILED_NO_TAG,
RECONCILED_TAG_ONLY,
RECONCILED_UNVERIFIED,
RULE_MISSING_TAG,
RULE_MISSING_TAG_GROUP,
RULE_ORPHAN_TAG,
RULE_PRICE_MISMATCH,
RULE_UNREADABLE_TAGS,
evaluate_compliance,
longest_common_substring_ratio,
normalize_name,
reconcile,
summarize_findings,
)
from tags import TAG_STATE_ABSENT, TAG_STATE_READABLE, TAG_STATE_UNREADABLE # noqa: E402
def accepted(sku="sku_003"):
return {"state": "recognized", "sku_id": sku, "identity_level": "accepted", "confidence": 0.9}
def tag(state=TAG_STATE_READABLE, **overrides):
payload = {
"id": "tag_1",
"box": [100, 300, 200, 340],
"state": state,
"price": None,
"regular_price": None,
"name": None,
"confidence": 0.8,
"observations": 3,
"settled": True,
}
payload.update(overrides)
return payload
def product(price=168.0, name="Tropicana エッセンシャルズ マルチビタミン", jan=None):
payload = {"sku_id": "sku_003", "product_name": name, "price": price}
if jan:
payload["jan"] = jan
return payload
class NameMatchingTests(unittest.TestCase):
def test_normalization_strips_noise(self):
self.assertEqual(normalize_name("Tropicana エッセンシャルズ"), "tropicanaエッセンシャルズ")
self.assertEqual(normalize_name("キュービー<310g>"), "キュービー")
def test_lcs_ratio(self):
self.assertEqual(longest_common_substring_ratio("tropicana", "tropicana"), 1.0)
self.assertGreater(longest_common_substring_ratio("tropicanaエッセンシャルズ", "tropicana"), 0.5)
self.assertEqual(longest_common_substring_ratio("", "x"), 0.0)
class ReconcileTests(unittest.TestCase):
def test_price_agreement_confirms(self):
result = reconcile(accepted(), tag(price=168), product(price=168.0))
self.assertEqual(result["state"], RECONCILED_CONFIRMED)
self.assertTrue(any(signal["kind"] == "price" and signal["agrees"] for signal in result["signals"]))
def test_regular_price_agreement_confirms(self):
result = reconcile(accepted(), tag(price=140, regular_price=168), product(price=168.0))
self.assertEqual(result["state"], RECONCILED_CONFIRMED)
def test_price_disagreement_is_a_mismatch_with_both_values(self):
result = reconcile(accepted(), tag(price=269), product(price=168.0))
self.assertEqual(result["state"], RECONCILED_MISMATCH)
self.assertIn("269", result["message"])
self.assertIn("168", result["message"])
def test_name_agreement_confirms_even_without_a_price(self):
result = reconcile(accepted(), tag(name="Tropicana エッセンシャルズ"), product(price=None, name="Tropicana エッセンシャルズ マルチビタミン"))
self.assertEqual(result["state"], RECONCILED_CONFIRMED)
def test_jan_disagreement_is_a_mismatch(self):
result = reconcile(accepted(), tag(price=168, jan="4902105000001"), product(price=168.0, jan="4902105000002"))
self.assertEqual(result["state"], RECONCILED_MISMATCH)
def test_jan_agreement_confirms(self):
result = reconcile(accepted(), tag(price=None, jan="4902105000001"), product(price=None, jan="4902105000001"))
self.assertEqual(result["state"], RECONCILED_CONFIRMED)
def test_tag_read_but_nothing_comparable(self):
result = reconcile(accepted(), tag(name="コーヒー"), product(price=None, name=None))
self.assertEqual(result["state"], RECONCILED_UNVERIFIED)
def test_unreadable_tag_is_unverified_not_missing(self):
result = reconcile(accepted(), tag(state=TAG_STATE_UNREADABLE), product())
self.assertEqual(result["state"], RECONCILED_UNVERIFIED)
def test_absent_tag(self):
result = reconcile(accepted(), tag(state=TAG_STATE_ABSENT), product())
self.assertEqual(result["state"], RECONCILED_NO_TAG)
def test_readable_tag_without_a_product(self):
result = reconcile(None, tag(price=269), None)
self.assertEqual(result["state"], RECONCILED_TAG_ONLY)
def test_nothing_to_reconcile_returns_none(self):
self.assertIsNone(reconcile(None, None, None))
self.assertIsNone(reconcile({"state": "unconfirmed"}, tag(state=TAG_STATE_ABSENT), product()))
# --------------------------------------------------------------------------- compliance
def band(row_index, box):
class Band:
pass
instance = Band()
instance.row_index = row_index
instance.box = box
return instance
def track(track_id, box, sku="sku_003", state="recognized"):
return {
"track_id": track_id,
"box": box,
"raw_box": box,
"identity": {"state": state, "sku_id": sku if state == "recognized" else None},
}
BANDS = [band(1, [0, 300, 700, 340]), band(2, [0, 600, 700, 640])]
class ComplianceTests(unittest.TestCase):
def test_missing_tag_on_a_covered_row_is_a_violation(self):
# 3 of 4 facings carry tag evidence (75% >= the 70% bar), one has none.
tracks = [track(index, [10 + index * 150, 100, 140 + index * 150, 300]) for index in range(4)]
tags = {
0: tag(state=TAG_STATE_READABLE, price=168, id="tag_a"),
1: tag(state=TAG_STATE_READABLE, price=178, id="tag_b"),
2: tag(state=TAG_STATE_ABSENT),
3: tag(state=TAG_STATE_READABLE, price=188, id="tag_c"),
}
findings = evaluate_compliance(tracks, tags, [tags[0], tags[1], tags[3]], BANDS)
rules = [finding.rule for finding in findings]
self.assertIn(RULE_MISSING_TAG, rules)
missing = [finding for finding in findings if finding.rule == RULE_MISSING_TAG][0]
self.assertEqual(missing.count, 1, "one finding per row, counting the facings")
def test_a_row_with_poor_tag_coverage_is_not_evaluated(self):
"""The real failure mode: our detector found tags for only a few of many
facings. Claiming the rest are missing would be a false violation."""
tracks = [track(index, [10 + index * 100, 100, 90 + index * 100, 300]) for index in range(6)]
tags = {index: tag(state=TAG_STATE_ABSENT) for index in range(6)}
tags[0] = tag(state=TAG_STATE_READABLE, price=168, id="tag_a")
findings = evaluate_compliance(tracks, tags, [tags[0]], BANDS)
self.assertEqual([finding.rule for finding in findings], [RULE_UNREADABLE_TAGS])
self.assertEqual(findings[0].severity, "hint")
self.assertEqual(summarize_findings(findings)["violations"], 0)
def test_unreadable_row_yields_a_hint_never_a_violation(self):
"""The demo image case: tags exist but cannot be read. Nothing may be claimed."""
tracks = [
track(1, [10, 100, 90, 300]),
track(2, [110, 100, 190, 300]),
track(3, [210, 100, 290, 300]),
]
tags = {
1: tag(state=TAG_STATE_UNREADABLE, price=None, id="tag_1"),
2: tag(state=TAG_STATE_UNREADABLE, price=None, id="tag_2"),
3: tag(state=TAG_STATE_UNREADABLE, price=None, id="tag_3"),
}
findings = evaluate_compliance(tracks, tags, [tags[1], tags[2], tags[3]], BANDS)
self.assertEqual([finding.rule for finding in findings], [RULE_UNREADABLE_TAGS])
self.assertEqual(findings[0].severity, "hint")
self.assertEqual(summarize_findings(findings)["violations"], 0)
def test_a_row_with_no_tag_evidence_at_all_is_silent(self):
tracks = [track(1, [10, 100, 90, 300])]
tags = {1: tag(state=TAG_STATE_ABSENT)}
findings = evaluate_compliance(tracks, tags, [], BANDS)
self.assertEqual(findings, [])
def test_group_of_consecutive_facings_without_tags(self):
# Coverage counts facings with *any* tag evidence, so the row needs enough
# of it to be judged at all (bar is 70%).
tracks = [track(index, [10 + index * 70, 100, 70 + index * 70, 300]) for index in range(10)]
tags = {index: tag(state=TAG_STATE_READABLE, price=168 + index, id=f"tag_{index}") for index in range(10)}
for absent in (2, 3, 4):
tags[absent] = tag(state=TAG_STATE_ABSENT, id=None)
findings = evaluate_compliance(tracks, tags, [t for t in tags.values() if t["id"]], BANDS)
groups = [finding for finding in findings if finding.rule == RULE_MISSING_TAG_GROUP]
self.assertEqual(len(groups), 1)
self.assertEqual(groups[0].count, 3)
self.assertEqual(groups[0].row_index, 1)
self.assertIn("3 facings", groups[0].detail)
def test_two_missing_facings_are_not_a_group(self):
tracks = [track(index, [10 + index * 150, 100, 140 + index * 150, 300]) for index in range(4)]
tags = {
0: tag(state=TAG_STATE_READABLE, price=168, id="tag_a"),
1: tag(state=TAG_STATE_ABSENT),
2: tag(state=TAG_STATE_READABLE, price=188, id="tag_b"),
3: tag(state=TAG_STATE_READABLE, price=198, id="tag_c"),
}
findings = evaluate_compliance(tracks, tags, [tags[0], tags[2], tags[3]], BANDS)
self.assertNotIn(RULE_MISSING_TAG_GROUP, [finding.rule for finding in findings])
missing = [finding for finding in findings if finding.rule == RULE_MISSING_TAG]
self.assertEqual(len(missing), 1)
self.assertEqual(missing[0].count, 1)
def test_orphan_tag(self):
tracks = [track(1, [10, 100, 90, 300])]
tags = {1: tag(state=TAG_STATE_READABLE, price=168, id="tag_a")}
all_tags = [tags[1], tag(state=TAG_STATE_READABLE, price=999, id="tag_lonely", box=[300, 600, 400, 640])]
findings = evaluate_compliance(tracks, tags, all_tags, BANDS)
orphans = [finding for finding in findings if finding.rule == RULE_ORPHAN_TAG]
self.assertEqual(len(orphans), 1)
self.assertEqual(orphans[0].box, [300, 600, 400, 640])
def test_price_mismatch_becomes_a_finding(self):
tracks = [track(1, [10, 100, 90, 300])]
tags = {1: tag(state=TAG_STATE_READABLE, price=269)}
reconciliations = {1: reconcile(accepted(), tags[1], product(price=168.0))}
findings = evaluate_compliance(tracks, tags, [tags[1]], BANDS, reconciliations)
mismatches = [finding for finding in findings if finding.rule == RULE_PRICE_MISMATCH]
self.assertEqual(len(mismatches), 1)
self.assertIn("269", mismatches[0].detail)
def test_summary_counts_only_violations(self):
findings = [
evaluate_compliance(
[track(1, [10, 100, 90, 300])],
{1: tag(state=TAG_STATE_READABLE, price=269)},
[tag(state=TAG_STATE_READABLE, price=269)],
BANDS,
{1: reconcile(accepted(), tag(price=269), product(price=168.0))},
)
][0]
summary = summarize_findings(findings)
self.assertGreaterEqual(summary["violations"], 1)
self.assertIn(RULE_PRICE_MISMATCH, summary["by_rule"])
class StabilityTests(unittest.TestCase):
def test_findings_need_to_persist(self):
tracker = ComplianceTracker(ComplianceSettings(stability_frames=3, stability_window=5))
from reconcile import Finding
finding = Finding(rule=RULE_MISSING_TAG, severity="violation", row_index=1, box=[0, 0, 10, 10])
first = tracker.update([finding])
self.assertEqual(len(first), 0, "a single frame must not publish a violation")
tracker.update([finding])
stable = tracker.update([finding])
self.assertEqual(len(stable), 1)
def test_a_transient_finding_never_publishes(self):
"""The rule is windowed: a finding must appear in 3 of the last 5 frames.
Two sightings spread over six frames is a flicker, not a violation."""
tracker = ComplianceTracker(ComplianceSettings(stability_frames=3, stability_window=5))
from reconcile import Finding
finding = Finding(rule=RULE_MISSING_TAG, severity="violation", row_index=1, box=[0, 0, 10, 10])
published = 0
for index in range(6):
published += len(tracker.update([finding] if index in (0, 2) else []))
self.assertEqual(published, 0)
def test_a_finding_present_in_three_of_five_frames_publishes(self):
tracker = ComplianceTracker(ComplianceSettings(stability_frames=3, stability_window=5))
from reconcile import Finding
finding = Finding(rule=RULE_MISSING_TAG, severity="violation", row_index=1, box=[0, 0, 10, 10])
published = 0
for index in range(5):
published += len(tracker.update([finding] if index in (0, 2, 4) else []))
self.assertGreater(published, 0)
if __name__ == "__main__":
unittest.main()