testMessage.setTreeId(123);
            assertEquals(123, testMessage.getTreeId());
        }

        @Test
        @DisplayName("Should propagate tree ID to chained message")
        void testTreeIdPropagation() {
            TestServerMessageBlock2 nextMessage = new TestServerMessageBlock2(mockConfig);
            testMessage.chain(nextMessage);
            testMessage.setTreeId(456);