diff --git a/lib/core/config_repository.dart b/lib/core/config_repository.dart
index 28e5067..8645041 100644
--- a/lib/core/config_repository.dart
+++ b/lib/core/config_repository.dart
@@ -66,6 +66,11 @@ class ConfigRepository {
 
   static ConfigRepository? _cachedConfig;
 
+  /// 设置缓存配置（仅用于测试）
+  static void setCachedConfig(ConfigRepository config) {
+    _cachedConfig = config;
+  }
+
   /// 同步加载配置（用于向后兼容或必须同步的场景）
   /// 为默认配置路径启用缓存
   static ConfigRepository loadSync([String? configPath]) {
diff --git a/test/config_prefix_test.dart b/test/config_prefix_test.dart
index 60c843e..f7047ee 100644
--- a/test/config_prefix_test.dart
+++ b/test/config_prefix_test.dart
@@ -79,8 +79,9 @@ generation:
       // Force a reload of the static config by accessing it.
       // This is a bit of a hack due to the static nature of SwaggerConfig and StringHelper.
       // A better approach would be to pass the config explicitly or mock the static dependencies.
-      ConfigRepository.loadSync(configFile
-          .path); // Ensure the config is loaded for the static accessor
+      // Load config and set it as cached so static accessors pick it up
+      final config = ConfigRepository.loadSync(configFile.path);
+      ConfigRepository.setCachedConfig(config);
 
       expect(StringHelper.generateClassName('User'), 'SUser');
       expect(StringHelper.generateClassName('model'), 'SModel');