I’m not sure what you’re after here, but you can try to get the HTTP response object from the WP_HTTP_Requests_Response::get_response_object()
method.
Here’s an example to retrieve the url:
if(
! is_wp_error( $test )
&& isset( $test['http_response'] )
&& $test['http_response'] instanceof \WP_HTTP_Requests_Response
&& method_exists( $test['http_response'], 'get_response_object' )
)
echo $test['http_response']->get_response_object()->url;