update trim test to check UID map changed

Author: camfairchild

pallets/admin-utils/src/tests/mod.rs

@@ -2631,6 +2631,13 @@ fn test_trim_to_max_allowed_uids() {
         // Actual number of neurons on the network updated after trimming
         assert_eq!(SubnetworkN::<Test>::get(netuid), new_max_n);
 
+        for i in 0..new_max_n {
+            let i = i as u16;
+            let hotkey = Keys::<Test>::get(netuid, i);
+            let uid = Uids::<Test>::get(netuid, hotkey);
+            assert_eq!(uid.unwrap(), i);
+        }
+
         // Non existent subnet
         assert_err!(
             AdminUtils::sudo_trim_to_max_allowed_uids(