디버깅 로그 추가

userfront/test/password_login_flow_policy_test.dart

@@ -0,0 +1,47 @@
+import 'package:flutter_test/flutter_test.dart';
+import 'package:userfront/features/auth/domain/password_login_flow_policy.dart';
+
+void main() {
+  group('password_login_flow_policy', () {
+    test('redirectTo가 있으면 OIDC redirect를 우선한다', () {
+      final action = decidePasswordLoginNextAction(
+        hasLoginChallenge: true,
+        redirectTo:
+            'https://sso-test.hmac.kr/oidc/oauth2/auth?login_verifier=a',
+        jwt: 'jwt-token',
+      );
+
+      expect(action, PasswordLoginNextAction.redirectToOidc);
+    });
+
+    test('OIDC challenge가 있고 redirectTo가 없으면 accept를 시도한다', () {
+      final action = decidePasswordLoginNextAction(
+        hasLoginChallenge: true,
+        redirectTo: null,
+        jwt: 'jwt-token',
+      );
+
+      expect(action, PasswordLoginNextAction.acceptOidc);
+    });
+
+    test('OIDC challenge가 없고 jwt가 있으면 로컬 로그인 완료로 진행한다', () {
+      final action = decidePasswordLoginNextAction(
+        hasLoginChallenge: false,
+        redirectTo: null,
+        jwt: 'jwt-token',
+      );
+
+      expect(action, PasswordLoginNextAction.localLogin);
+    });
+
+    test('redirectTo/jwt 모두 없으면 invalid로 처리한다', () {
+      final action = decidePasswordLoginNextAction(
+        hasLoginChallenge: false,
+        redirectTo: null,
+        jwt: null,
+      );
+
+      expect(action, PasswordLoginNextAction.invalid);
+    });
+  });
+}