assertNotNull(cap.getValue()); // captured request should be present
    }

    @Test
    @DisplayName("sendrecv uses TransactNamedPipe when PIPE_TYPE_TRANSACT is set")
    void sendrecv_transact_branch() throws Exception {
        // Arrange
        int type = SmbPipeResource.PIPE_TYPE_TRANSACT | SmbPipeResource.PIPE_TYPE_RDWR;
        SmbPipeHandleImpl handle = newHandleWithBasicStubs(type, "\\\\pipe\\\\t");