}

    @Nested
    @DisplayName("Send/Receive Tests")
    class SendReceiveTests {

        @Test
        @DisplayName("Should handle basic send/receive fragment methods")
        void testSendReceiveFragmentMethods() throws IOException {
            // Given: Test handle with configured return values
            handle.setDoSendReceiveFragmentReturn(100);
            handle.setDoReceiveFragmentReturn(50);