added testing

backend/src/error.rs

@@ -7,6 +7,7 @@ use tracing::error;
 
 use crate::models::ErrorResponse;
 
+#[derive(Debug)]
 pub enum AppError {
     Unauthorized,
     NotFound(String),
@@ -29,7 +30,10 @@ impl IntoResponse for AppError {
                 } else {
                     error!("Internal error: {}", msg);
                 }
-                (StatusCode::INTERNAL_SERVER_ERROR, "Internal error".to_string())
+                (
+                    StatusCode::INTERNAL_SERVER_ERROR,
+                    "Internal error".to_string(),
+                )
             }
         };