fixup! add tests

Author: wokron

tests/test_control.cpp

@@ -285,6 +285,8 @@ TEST_CASE("test control") {
                             ublk::quiesce_dev(control_fd, dev_id, 1000)));
 
                         SUBCASE("start_user_recovery / end_user_recovery") {
+                            // TSAN: sync io thread before close
+                            ex::sync_wait(ex::starts_on(io_sched, ex::just()));
                             close(ublkc_fd);
                             ublkc_fd = -1;
                             std::this_thread::sleep_for(

tests/test_raw.cpp

@@ -292,6 +292,8 @@ TEST_CASE("test raw - privileged") {
                             ublk::raw::quiesce_dev(control_fd, dev_id, 1000)));
 
                         SUBCASE("start_user_recovery / end_user_recovery") {
+                            // TSAN: sync io thread before close
+                            ex::sync_wait(ex::starts_on(io_sched, ex::just()));
                             close(ublkc_fd);
                             ublkc_fd = -1;
                             std::this_thread::sleep_for(