run_test("comm turn link off before send/recv", test_link_off_before_send_recv);
run_test("comm turn link off between send/recv", test_link_off_between_send_recv);
run_test("comm turn link off during transfer", test_link_off_during_transfer);
run_test("comm turn link off before send/recv", test_link_off_before_send_recv);
run_test("comm turn link off between send/recv", test_link_off_between_send_recv);
run_test("comm turn link off during transfer", test_link_off_during_transfer);