feat:人脸识别人脸占比设置

test/face_recognition_configuration_test.dart

@@ -0,0 +1,48 @@
+import 'package:flutter_test/flutter_test.dart';
+import 'package:pj_supermarket_cloud/common/models/plugs/face_discern_models.dart';
+
+void main() {
+  const defaults = FaceRecognitionConfiguration.defaults();
+
+  test('默认策略和旧版缺少占比字段的策略均使用 5%', () {
+    expect(defaults.minFaceAreaPercent, 5);
+    final legacyMap = defaults.toMap()..remove('minFaceAreaPercent');
+    expect(FaceRecognitionConfiguration.fromMap(legacyMap), defaults);
+  });
+
+  test('占比修改参与未保存判断并通过原生配置协议完整往返', () {
+    final changed = defaults.copyWith(minFaceAreaPercent: 12);
+    expect(changed, isNot(defaults));
+    expect(changed.usesDefaults, isFalse);
+    expect({defaults, changed}, hasLength(2));
+    expect(changed.toMap()['minFaceAreaPercent'], 12);
+    expect(FaceRecognitionConfiguration.fromMap(changed.toMap()), changed);
+    expect(changed.copyWith(enableLiveness: true).minFaceAreaPercent, 12);
+    expect(changed.copyWith(minFaceAreaPercent: 5).usesDefaults, isTrue);
+  });
+
+  test('接受百分比边界和小数，异常读取值回退 5% 避免阻断设置页', () {
+    for (final percent in <num>[1, 5.5, 100]) {
+      final decoded = FaceRecognitionConfiguration.fromMap({
+        'minFaceAreaPercent': percent,
+      });
+      expect(decoded.minFaceAreaPercent, percent.toDouble());
+    }
+    for (final invalid in <Object?>[
+      null,
+      '5',
+      false,
+      0,
+      -5,
+      101,
+      double.nan,
+      double.infinity,
+      double.negativeInfinity,
+    ]) {
+      final decoded = FaceRecognitionConfiguration.fromMap({
+        'minFaceAreaPercent': invalid,
+      });
+      expect(decoded.minFaceAreaPercent, 5, reason: '异常值 $invalid');
+    }
+  });
+}