Refactor tests to improve response parsing and validation

- Introduced a new common module with response helper functions to streamline response parsing across tests.
- Updated role controller tests to assert success messages in responses for create, update, and delete operations.
- Enhanced role service tests to validate response structures and ensure proper error handling.
- Modified team controller and service tests to check for success messages and validate response data formats.
- Improved user controller and service tests to include success message assertions and error handling for invalid inputs.
- Ensured all tests utilize the new response parsing functions for consistency and maintainability.

tests/src/iam/auth/google/google_oauth_flow_test.rs

@@ -182,8 +182,8 @@ mod tests {
         let response = app.oneshot(request).await.unwrap();
 
         assert_eq!(response.status(), StatusCode::OK);
-        let body = response.into_body().collect().await.unwrap().to_bytes();
-        let json_body: AuthLoginResponsetDto = serde_json::from_slice(&body).unwrap();
+        let json_body: AuthLoginResponsetDto =
+            crate::common::response_helpers::parse_response(response, 8192).await;
         assert_eq!(json_body.token.access_token, expected_access_token);
         assert_eq!(json_body.token.refresh_token, expected_refresh_token);
         assert_eq!(json_body.user.email, user_email);
@@ -271,8 +271,8 @@ mod tests {
         let response = app.oneshot(request).await.unwrap();
 
         assert_eq!(response.status(), StatusCode::OK);
-        let body = response.into_body().collect().await.unwrap().to_bytes();
-        let json_body: AuthLoginResponsetDto = serde_json::from_slice(&body).unwrap();
+        let json_body: AuthLoginResponsetDto =
+            crate::common::response_helpers::parse_response(response, 8192).await;
         assert_eq!(json_body.token.access_token, expected_access_token);
         assert_eq!(json_body.token.refresh_token, expected_refresh_token);
         assert_eq!(json_body.user.email, user_email);