test: add unit coverage for scanner parsing and reporting utils

lib/scanner_screen.dart

@@ -6,6 +6,7 @@ import 'package:camera/camera.dart';
 import 'package:google_mlkit_text_recognition/google_mlkit_text_recognition.dart';
 import 'services/collection_service.dart';
 import 'theme/app_colors.dart';
+import 'utils/scanner_utils.dart';
 
 /// Screen that uses the camera to scan text (OCR) from a Hot Wheels package
 /// and extract the hw_id (e.g. "JKF21").
@@ -41,10 +42,6 @@ class _ScannerScreenState extends State<ScannerScreen> {
   bool _autoScanEnabled = false;
   Timer? _autoScanTimer;
 
-  // Matches typical Hot Wheels model IDs: 2–5 uppercase letters followed by
-  // 2–4 digits, e.g. JKF21, HCV73, GRX33, FYD83.
-  final _hwIdPattern = RegExp(r'\b([A-Z]{2,5}\d{2,4})\b');
-
   @override
   void initState() {
     super.initState();
@@ -117,18 +114,11 @@ class _ScannerScreenState extends State<ScannerScreen> {
       final inputImage = InputImage.fromFilePath(xFile.path);
       final recognized = await _textRecognizer.processImage(inputImage);
 
-      // Search all recognized text blocks for something matching the HW ID pattern.
-      String? found;
-      for (final block in recognized.blocks) {
-        for (final line in block.lines) {
-          final match = _hwIdPattern.firstMatch(line.text.toUpperCase());
-          if (match != null) {
-            found = match.group(1);
-            break;
-          }
-        }
-        if (found != null) break;
-      }
+      final found = extractHwIdFromLines(
+        recognized.blocks
+            .expand((block) => block.lines)
+            .map((line) => line.text),
+      );
 
       // Clean up the temp image.
       try {

lib/screens/my_reports_screen.dart

@@ -1,6 +1,7 @@
 import 'package:flutter/material.dart';
 import '../main.dart';
 import '../theme/app_colors.dart';
+import '../utils/reporting_utils.dart';
 
 class MyReportsScreen extends StatefulWidget {
   const MyReportsScreen({super.key});
@@ -184,7 +185,7 @@ class _MyReportsScreenState extends State<MyReportsScreen> {
                 if (createdAt != null) ...[
                   const SizedBox(height: 10),
                   Text(
-                    _formatDateTime(createdAt),
+                    formatReportDateTime(createdAt),
                     style: const TextStyle(fontSize: 12, color: AppColors.textHint),
                   ),
                 ],
@@ -198,14 +199,6 @@ class _MyReportsScreenState extends State<MyReportsScreen> {
     );
   }
 
-  String _formatDateTime(DateTime date) {
-    final d = date.toLocal();
-    final mm = d.month.toString().padLeft(2, '0');
-    final dd = d.day.toString().padLeft(2, '0');
-    final hh = d.hour.toString().padLeft(2, '0');
-    final min = d.minute.toString().padLeft(2, '0');
-    return '$dd.$mm.${d.year} $hh:$min';
-  }
 }
 
 class _StatusChip extends StatelessWidget {
@@ -215,12 +208,13 @@ class _StatusChip extends StatelessWidget {
 
   @override
   Widget build(BuildContext context) {
-    final normalized = status.toLowerCase();
-    final (label, color) = switch (normalized) {
-      'reviewed' => ('Reviewed', Colors.blueGrey),
-      'resolved' => ('Resolved', AppColors.success),
-      'dismissed' => ('Dismissed', AppColors.error),
-      _ => ('Open', AppColors.orange),
+    final normalized = normalizeReportStatus(status);
+    final label = reportStatusLabel(normalized);
+    final color = switch (normalized) {
+      ReportStatus.reviewed => Colors.blueGrey,
+      ReportStatus.resolved => AppColors.success,
+      ReportStatus.dismissed => AppColors.error,
+      ReportStatus.open => AppColors.orange,
     };
 
     return Container(

lib/utils/reporting_utils.dart

@@ -0,0 +1,41 @@
+enum ReportStatus {
+  open,
+  reviewed,
+  resolved,
+  dismissed,
+}
+
+ReportStatus normalizeReportStatus(String? status) {
+  switch ((status ?? '').toLowerCase()) {
+    case 'reviewed':
+      return ReportStatus.reviewed;
+    case 'resolved':
+      return ReportStatus.resolved;
+    case 'dismissed':
+      return ReportStatus.dismissed;
+    default:
+      return ReportStatus.open;
+  }
+}
+
+String reportStatusLabel(ReportStatus status) {
+  switch (status) {
+    case ReportStatus.reviewed:
+      return 'Reviewed';
+    case ReportStatus.resolved:
+      return 'Resolved';
+    case ReportStatus.dismissed:
+      return 'Dismissed';
+    case ReportStatus.open:
+      return 'Open';
+  }
+}
+
+String formatReportDateTime(DateTime date) {
+  final d = date.toLocal();
+  final mm = d.month.toString().padLeft(2, '0');
+  final dd = d.day.toString().padLeft(2, '0');
+  final hh = d.hour.toString().padLeft(2, '0');
+  final min = d.minute.toString().padLeft(2, '0');
+  return '$dd.$mm.${d.year} $hh:$min';
+}

lib/utils/scanner_utils.dart

@@ -0,0 +1,13 @@
+String? extractHwIdFromLines(Iterable<String> lines) {
+  final pattern = RegExp(r'\b([A-Z]{2,5}\d{2,4})\b');
+
+  for (final raw in lines) {
+    final line = raw.toUpperCase();
+    final match = pattern.firstMatch(line);
+    if (match != null) {
+      return match.group(1);
+    }
+  }
+
+  return null;
+}

test/utils/reporting_utils_test.dart

@@ -0,0 +1,40 @@
+import 'package:flutter_test/flutter_test.dart';
+import 'package:hwhub/utils/reporting_utils.dart';
+
+void main() {
+  group('normalizeReportStatus', () {
+    test('maps known statuses', () {
+      expect(normalizeReportStatus('open'), ReportStatus.open);
+      expect(normalizeReportStatus('reviewed'), ReportStatus.reviewed);
+      expect(normalizeReportStatus('resolved'), ReportStatus.resolved);
+      expect(normalizeReportStatus('dismissed'), ReportStatus.dismissed);
+    });
+
+    test('is case-insensitive and defaults unknown to open', () {
+      expect(normalizeReportStatus('ReSoLvEd'), ReportStatus.resolved);
+      expect(normalizeReportStatus('other'), ReportStatus.open);
+      expect(normalizeReportStatus(null), ReportStatus.open);
+    });
+  });
+
+  group('reportStatusLabel', () {
+    test('returns user-facing labels', () {
+      expect(reportStatusLabel(ReportStatus.open), 'Open');
+      expect(reportStatusLabel(ReportStatus.reviewed), 'Reviewed');
+      expect(reportStatusLabel(ReportStatus.resolved), 'Resolved');
+      expect(reportStatusLabel(ReportStatus.dismissed), 'Dismissed');
+    });
+  });
+
+  group('formatReportDateTime', () {
+    test('formats timestamp as dd.mm.yyyy hh:mm', () {
+      final value = DateTime.utc(2026, 3, 4, 8, 5);
+      final formatted = formatReportDateTime(value);
+      final local = value.toLocal();
+      final expected =
+          '${local.day.toString().padLeft(2, '0')}.${local.month.toString().padLeft(2, '0')}.${local.year} ${local.hour.toString().padLeft(2, '0')}:${local.minute.toString().padLeft(2, '0')}';
+
+      expect(formatted, expected);
+    });
+  });
+}

test/utils/scanner_utils_test.dart

@@ -0,0 +1,39 @@
+import 'package:flutter_test/flutter_test.dart';
+import 'package:hwhub/utils/scanner_utils.dart';
+
+void main() {
+  group('extractHwIdFromLines', () {
+    test('returns first matching HW ID', () {
+      final result = extractHwIdFromLines([
+        'some random text',
+        'MODEL JKF21 PREMIUM',
+        'another HCV73',
+      ]);
+
+      expect(result, 'JKF21');
+    });
+
+    test('matches lower-case input by normalizing to upper-case', () {
+      final result = extractHwIdFromLines([
+        'abc',
+        'new release grx33',
+      ]);
+
+      expect(result, 'GRX33');
+    });
+
+    test('returns null when no pattern is present', () {
+      final result = extractHwIdFromLines([
+        'hot wheels',
+        'no sku here',
+      ]);
+
+      expect(result, isNull);
+    });
+
+    test('supports 2 to 5 letters and 2 to 4 digits', () {
+      expect(extractHwIdFromLines(['AB12']), 'AB12');
+      expect(extractHwIdFromLines(['ABCDE1234']), 'ABCDE1234');
+    });
+  });
+}