feat: Refactor MD5 hashing and update save game codec for compatibility with new payload format

Signed-off-by: Hans Kokx <hans.d.kokx@gmail.com>
2026-03-23 16:03:12 +01:00
parent f05a861998
commit c4c8e4149a
9 changed files with 394 additions and 29 deletions
@@ -0,0 +1,21 @@
+import 'package:test/test.dart';
+import 'package:wolf_3d_dart/wolf_3d_data_types.dart';
+
+void main() {
+  group('DataVersion.fromChecksum', () {
+    test('resolves all known checksum constants', () {
+      for (final version in DataVersion.values.where(
+        (version) => version != DataVersion.unknown,
+      )) {
+        expect(DataVersion.fromChecksum(version.checksum), version);
+      }
+    });
+
+    test('returns unknown for unrecognized checksum', () {
+      expect(
+        DataVersion.fromChecksum('ffffffffffffffffffffffffffffffff'),
+        DataVersion.unknown,
+      );
+    });
+  });
+}
@@ -0,0 +1,34 @@
+import 'dart:convert';
+
+import 'package:test/test.dart';
+import 'package:wolf_3d_dart/src/data/md5_hash.dart';
+
+void main() {
+  group('md5HexLower', () {
+    test('matches canonical RFC vectors', () {
+      expect(md5HexLower(const <int>[]), 'd41d8cd98f00b204e9800998ecf8427e');
+      expect(
+        md5HexLower(utf8.encode('abc')),
+        '900150983cd24fb0d6963f7d28e17f72',
+      );
+      expect(
+        md5HexLower(utf8.encode('The quick brown fox jumps over the lazy dog')),
+        '9e107d9d372bb6826bd81d3542a419d6',
+      );
+      expect(
+        md5HexLower(
+          utf8.encode(
+            '12345678901234567890123456789012345678901234567890123456789012345678901234567890',
+          ),
+        ),
+        '57edf4a22be3c955ac49da2e2107b67a',
+      );
+    });
+
+    test('returns lowercase 32-character hex output', () {
+      final digest = md5HexLower(utf8.encode('Wolf3D'));
+      expect(digest, hasLength(32));
+      expect(digest, matches(RegExp(r'^[0-9a-f]{32}$')));
+    });
+  });
+}