1

flutter_app/test/model_manager_test.dart

@@ -135,6 +135,26 @@ void main() {
     expect(m2.models.first.version, 'v2.0.0');
   });
 
+  test('autoUpdate：已激活模型出新版本，refresh 后自动重下并立即生效', () async {
+    final m = manager(client([_item()]));
+    await m.refresh();
+    await m.downloadModel(m.catalog.first);
+    expect(downloadHits, 1);
+
+    // 重启 + 服务器目录出 v2：refresh 内部 autoUpdate 自动重下（无需手动）
+    final m2 = manager(client([_item(version: 'v2.0.0')]));
+    await m2.refresh();
+    for (var i = 0; i < 50 && downloadHits < 2; i++) {
+      await Future<void>.delayed(const Duration(milliseconds: 20));
+    }
+
+    expect(downloadHits, 2, reason: '新版本应自动重下');
+    expect(m2.isActive(7), isTrue, reason: '自动更新应保持激活');
+    expect(m2.models.first.version, 'v2.0.0',
+        reason: '自动更新后立即生效新版本字节');
+    expect(m2.models.first.bytes, _modelBytes);
+  });
+
   test('sha256 不匹配：重试后失败、不激活、错误可见', () async {
     final m = manager(client([_item()]));
     await m.refresh();

flutter_app/test/model_merge_test.dart

@@ -28,12 +28,23 @@ void main() {
     expect(merged.first.modelName, '野兔模型');
   });
 
-  test('不同类别互不压制', () {
+  test('不同类别重叠：去重取高分（实测多模型对同一目标检异类别）', () {
     final all = [
       box('pheasant', 0.3, 0.5, 0.5, modelId: 1),
       box('hare', 0.7, 0.5, 0.5, modelId: 2), // 同位置但不同类别
     ];
     final merged = mergeAcrossModels(all, 0.45);
+    expect(merged.length, 1);
+    expect(merged.first.label, 'hare');
+    expect(merged.first.score, 0.7);
+  });
+
+  test('不同类别不重叠：都保留', () {
+    final all = [
+      box('pheasant', 0.3, 0.1, 0.1, modelId: 1),
+      box('hare', 0.7, 0.8, 0.8, modelId: 2), // 远处互不重叠
+    ];
+    final merged = mergeAcrossModels(all, 0.45);
     expect(merged.length, 2);
   });
 

flutter_app/test/nms_test.dart

@@ -30,6 +30,25 @@ void main() {
     expect(result[0].score, greaterThan(0.5));
   });
 
+  test('bigBox_containsSmallBox_deduped', () {
+    // 同目标一大一小两框：标准 IoU = 0.04/0.13 ≈ 0.31 < 0.45 会漏，
+    // minIoU = inter/小框 = 1 必须去重（2026-09-01 用户实测：单模型也有重叠框）
+    final a = box(0.3, 0.3, 0.5, 0.5, 0.8); // 小框 0.2x0.2
+    final b = box(0.25, 0.25, 0.55, 0.55, 0.6); // 大框 0.3x0.3 套住小框
+    final result = nms([a, b], 0.45);
+    expect(result.length, 1);
+    expect(result[0].score, 0.8);
+  });
+
+  test('partiallyOverlapping_sameTarget_deduped', () {
+    // 标准 IoU = 0.075/0.195 ≈ 0.385 < 0.45 会漏；minIoU = 0.075/0.09 ≈ 0.83
+    final a = box(0.1, 0.1, 0.4, 0.4, 0.9); // 0.3x0.3
+    final b = box(0.15, 0.1, 0.55, 0.4, 0.5); // 0.4x0.3，与 a 重叠 0.25x0.3
+    final result = nms([a, b], 0.45);
+    expect(result.length, 1);
+    expect(result[0].score, 0.9);
+  });
+
   test('iou_nonOverlapping_isZero', () {
     final a = box(0.0, 0.0, 0.2, 0.2, 1);
     final b = box(0.8, 0.8, 1.0, 1.0, 1);