Update util_keylet fee test

src/xrpld/app/hook/detail/applyHook.cpp

@@ -2730,23 +2730,26 @@ DEFINE_HOOK_FUNCTION(
 
                 return serialize_keylet(kl, memory, write_ptr, write_len);
             }
-            // These keylet types are not yet implemented. Their
-            // corresponding amendments are not yet supported on the
-            // network. Each case needs a full implementation (see
-            // above cases for reference) before its amendment can be
-            // enabled.
-            // featureXChainBridge
             case keylet_code::BRIDGE:
             case keylet_code::XCHAIN_OWNED_CLAIM_ID:
-            case keylet_code::XCHAIN_OWNED_CREATE_ACCOUNT_CLAIM_ID:
-            // featureMPTokensV1
+            case keylet_code::XCHAIN_OWNED_CREATE_ACCOUNT_CLAIM_ID: {
+                if (!applyCtx.view().rules().enabled(featureXChainBridge))
+                    return INVALID_ARGUMENT;
+            }
             case keylet_code::MPTOKEN_ISSUANCE:
-            case keylet_code::MPTOKEN:
-            // featureCredentials
-            case keylet_code::CREDENTIAL:
-            // featurePermissionedDomains
-            case keylet_code::PERMISSIONED_DOMAIN:
-                return INVALID_ARGUMENT;
+            case keylet_code::MPTOKEN: {
+                if (!applyCtx.view().rules().enabled(featureMPTokensV1))
+                    return INVALID_ARGUMENT;
+            }
+            case keylet_code::CREDENTIAL: {
+                if (!applyCtx.view().rules().enabled(featureCredentials))
+                    return INVALID_ARGUMENT;
+            }
+            case keylet_code::PERMISSIONED_DOMAIN: {
+                if (!applyCtx.view().rules().enabled(
+                        featurePermissionedDomains))
+                    return INVALID_ARGUMENT;
+            }
         }
     }
     catch (std::exception& e)