#269 진행. 리다이렉트 등 파라미터 전체 전달

userfront/test/locale_registry_test.dart

@@ -0,0 +1,36 @@
+import 'package:flutter_test/flutter_test.dart';
+import 'package:userfront/core/i18n/locale_registry.dart';
+
+void main() {
+  tearDown(() {
+    LocaleRegistry.resetForTest();
+  });
+
+  group('locale_registry', () {
+    test(
+      'extractSupportedLocaleCodesFromAssets excludes template and invalid',
+      () {
+        final locales = extractSupportedLocaleCodesFromAssets([
+          'assets/translations/template.toml',
+          'assets/translations/en.toml',
+          'assets/translations/ko.toml',
+          'assets/translations/pt_BR.toml',
+          'assets/translations/readme.txt',
+          'assets/translations/nested/ja.toml',
+        ]);
+
+        expect(locales, ['en', 'ko']);
+      },
+    );
+
+    test('fallback locale prefers en when available', () {
+      LocaleRegistry.setSupportedLocaleCodesForTest(['ko', 'en']);
+      expect(LocaleRegistry.fallbackLocaleCode, 'en');
+    });
+
+    test('fallback locale uses first sorted code when en is absent', () {
+      LocaleRegistry.setSupportedLocaleCodesForTest(['ko', 'ja']);
+      expect(LocaleRegistry.fallbackLocaleCode, 'ja');
+    });
+  });
+}

userfront/test/locale_utils_test.dart

@@ -1,7 +1,16 @@
 import 'package:flutter_test/flutter_test.dart';
+import 'package:userfront/core/i18n/locale_registry.dart';
 import 'package:userfront/core/i18n/locale_utils.dart';
 
 void main() {
+  setUp(() {
+    LocaleRegistry.setSupportedLocaleCodesForTest(['en', 'ko']);
+  });
+
+  tearDown(() {
+    LocaleRegistry.resetForTest();
+  });
+
   group('locale_utils', () {
     test('normalizeLocaleCode handles supported locales', () {
       expect(normalizeLocaleCode('ko'), 'ko');
@@ -50,7 +59,25 @@ void main() {
       final uri = Uri.parse('/signin?redirect_uri=https://example.com');
       expect(
         buildLocalizedPath('ko', uri),
-        '/ko/signin?redirect_uri=https%3A%2F%2Fexample.com',
+        '/ko/signin?redirect_uri=https://example.com',
+      );
+    });
+
+    test('buildLocalizedPath preserves raw query order and duplicates', () {
+      final uri = Uri.parse(
+        '/signin?a=1&a=2&redirect_uri=https%3A%2F%2Fexample.com%2Fcb%3Fx%3D1%26y%3D2',
+      );
+      expect(
+        buildLocalizedPath('ko', uri),
+        '/ko/signin?a=1&a=2&redirect_uri=https%3A%2F%2Fexample.com%2Fcb%3Fx%3D1%26y%3D2',
+      );
+    });
+
+    test('buildLocalizedPath preserves fragment', () {
+      final uri = Uri.parse('/signin?notice=qr_login_required#auth');
+      expect(
+        buildLocalizedPath('ko', uri),
+        '/ko/signin?notice=qr_login_required#auth',
       );
     });
 
@@ -59,8 +86,28 @@ void main() {
       expect(buildLocalizedPath('ko', Uri.parse('/en/profile')), '/ko/profile');
     });
 
-    test('buildLocalizedPath drops unknown 2-letter prefix', () {
-      expect(buildLocalizedPath('ko', Uri.parse('/zz/signin')), '/ko/signin');
+    test('buildLocalizedPath keeps unknown 2-letter prefix as path', () {
+      expect(
+        buildLocalizedPath('ko', Uri.parse('/zz/signin')),
+        '/ko/zz/signin',
+      );
+    });
+
+    test('buildSigninRedirectPath keeps path without query', () {
+      expect(
+        buildSigninRedirectPath('ko', Uri.parse('/ko/profile')),
+        '/ko/signin',
+      );
+    });
+
+    test('buildSigninRedirectPath preserves full raw query', () {
+      final uri = Uri.parse(
+        '/ko/profile?a=1&a=2&redirect_uri=https%3A%2F%2Fexample.com%2Fcb%3Fx%3D1%26y%3D2&notice=qr_login_required',
+      );
+      expect(
+        buildSigninRedirectPath('ko', uri),
+        '/ko/signin?a=1&a=2&redirect_uri=https%3A%2F%2Fexample.com%2Fcb%3Fx%3D1%26y%3D2&notice=qr_login_required',
+      );
     });
   });
 }