PR review modif + packet aware

2026-07-12 11:52:07 +10:00 · 2026-05-17 15:50:25 +02:00
parent 87b0fd6fc7
commit d6647f4701
17 changed files with 200 additions and 100 deletions
@@ -0,0 +1,40 @@
+import 'dart:typed_data';
+
+import 'package:flutter_test/flutter_test.dart';
+import 'package:meshcore_open/helpers/path_helper.dart';
+
+void main() {
+  test('detectPathHashWidth identifies 1,2,3,4-byte widths from first byte', () {
+    // mode 0 -> width 1 (00xxxxxx)
+    expect(PathHelper.detectPathHashWidth([0x12]), equals(1));
+
+    // mode 1 -> width 2 (01xxxxxx)
+    expect(PathHelper.detectPathHashWidth([0x40]), equals(2));
+    expect(PathHelper.detectPathHashWidth([0x7F]), equals(2));
+
+    // mode 2 -> width 3 (10xxxxxx)
+    expect(PathHelper.detectPathHashWidth([0x80]), equals(3));
+
+    // mode 3 -> width 4 (11xxxxxx)
+    expect(PathHelper.detectPathHashWidth([0xC0]), equals(4));
+  });
+
+  test('packet-aware split uses detected width vs fallback', () {
+    // Packet has mode=0 (1-byte hops) but fallback is 2
+    final packet = [0x01, 0x02, 0x03];
+    final detected = PathHelper.detectPathHashWidth(packet, fallback: 2);
+    expect(detected, equals(1));
+
+    final hops = PathHelper.splitPathBytes(packet, detected);
+    expect(hops, hasLength(3));
+    expect(hops.first, equals(Uint8List.fromList([0x01])));
+
+    // Packet with mode=1 (2-byte hops)
+    final packet2 = [0x40, 0xAA, 0xBB, 0xCC];
+    final detected2 = PathHelper.detectPathHashWidth(packet2, fallback: 1);
+    expect(detected2, equals(2));
+    final hops2 = PathHelper.splitPathBytes(packet2, detected2);
+    expect(hops2, hasLength(2));
+    expect(hops2.first, equals(Uint8List.fromList([0x40, 0xAA])));
+  });
+}