test(codes): compare Data Matrix and PDF417 with references and decode them, also from screenshots

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

1 files changed, 15 insertions, 1 deletions

diff --git a/tools/check_codes.py b/tools/check_codes.py
index 53e30f0..7ec47b4 100644
--- a/tools/check_codes.py
+++ b/tools/check_codes.py
@@ -20,6 +20,8 @@ import barcode_ref as ref
 
 DUMP = re.compile(r"CODEDUMP (\d+) ([0-9a-f]*) ([01]+)")
 QR_DUMP = re.compile(r"QRDUMP (\d+) ([0-9a-f]*) ([0-9a-f]+)")
+# Any 2D code: symbology, width, stored rows, row height, quiet zone, text as hex, modules as hex.
+MATRIX_DUMP = re.compile(r"MATRIXDUMP (\d+) (\d+) (\d+) (\d+) (\d+) ([0-9a-f]*) ([0-9a-f]+)")
 SCALES = (1, 2, 3)
 QR_SCALES = (2, 3)  # README 12.2: 2D codes use at least 2 px per module
 
@@ -43,10 +45,22 @@ def check_log(path: Path) -> tuple[int, list[str]]:
         text = bytes.fromhex(match.group(2)).decode("utf-8")
         packed = bytes.fromhex(match.group(3))
         for scale in QR_SCALES:
-            got = ref.decode(ref.render_matrix(packed, size, scale, quiet=4), ref.QR)
+            got = ref.decode(ref.render_matrix(packed, (size, size), scale, quiet=4), ref.QR)
             if text not in got:
                 failures.append(f"QR size {size} '{text[:30]}' at {scale} px/module: read {got}")
         checked += 1
+    for match in MATRIX_DUMP.finditer(path.read_text(encoding="utf-8", errors="replace")):
+        symbology, width, height, row_height, quiet = (int(match.group(k)) for k in range(1, 6))
+        text = bytes.fromhex(match.group(6)).decode("utf-8")
+        packed = bytes.fromhex(match.group(7))
+        for scale in QR_SCALES:
+            image = ref.render_matrix(packed, (width, height), scale, quiet=max(quiet, 2), row_height=row_height)
+            got = ref.decode(image, symbology)
+            if text not in got:
+                failures.append(
+                    f"symbology {symbology} {width}x{height} '{text[:30]}' at {scale} px/module: read {got}"
+                )
+        checked += 1
     return checked, failures