test-engine: fix access to unit load path

Also add a bit of debugging output to help diagnose problems,
add missing units, and simplify cppflags.

Move test-engine to normal tests from manual tests, it should now
work without destroying the system.

1 files changed, 19 insertions, 4 deletions

diff --git a/src/core/manager.c b/src/core/manager.c
index 9d9a713005..2e63c5ef1f 100644
--- a/src/core/manager.c
+++ b/src/core/manager.c
@@ -241,6 +241,9 @@ static int manager_setup_time_change(Manager *m) {
         assert(m);
         assert_cc(sizeof(time_t) == sizeof(TIME_T_MAX));
 
+        if (m->test_run)
+                return 0;
+
         /* Uses TFD_TIMER_CANCEL_ON_SET to get notifications whenever
          * CLOCK_REALTIME makes a jump relative to CLOCK_MONOTONIC */
 
@@ -302,6 +305,9 @@ static int manager_setup_signals(Manager *m) {
 
         assert(m);
 
+        if (m->test_run)
+                return 0;
+
         /* We are not interested in SIGSTOP and friends. */
         assert_se(sigaction(SIGCHLD, &sa, NULL) == 0);
 
@@ -409,7 +415,7 @@ static int manager_default_environment(Manager *m) {
         return 0;
 }
 
-int manager_new(SystemdRunningAs running_as, Manager **_m) {
+int manager_new(SystemdRunningAs running_as, bool test_run, Manager **_m) {
         Manager *m;
         int r;
 
@@ -435,6 +441,8 @@ int manager_new(SystemdRunningAs running_as, Manager **_m) {
         m->pin_cgroupfs_fd = m->notify_fd = m->signal_fd = m->time_change_fd = m->dev_autofs_fd = m->private_listen_fd = m->kdbus_fd = -1;
         m->current_job_id = 1; /* start as id #1, so that we can leave #0 around as "null-like" value */
 
+        m->test_run = test_run;
+
         r = manager_default_environment(m);
         if (r < 0)
                 goto fail;
@@ -514,6 +522,9 @@ fail:
 static int manager_setup_notify(Manager *m) {
         int r;
 
+        if (m->test_run)
+                return 0;
+
         if (m->notify_fd < 0) {
                 _cleanup_close_ int fd = -1;
                 union {
@@ -592,12 +603,10 @@ static int manager_setup_notify(Manager *m) {
 static int manager_setup_kdbus(Manager *m) {
 #ifdef ENABLE_KDBUS
         _cleanup_free_ char *p = NULL;
-#endif
 
-#ifdef ENABLE_KDBUS
         assert(m);
 
-        if (m->kdbus_fd >= 0)
+        if (m->test_run || m->kdbus_fd >= 0)
                 return 0;
 
         m->kdbus_fd = bus_kernel_create_bus(m->running_as == SYSTEMD_SYSTEM ? "system" : "user", m->running_as == SYSTEMD_SYSTEM, &p);
@@ -624,6 +633,9 @@ static int manager_connect_bus(Manager *m, bool reexecuting) {
 
         assert(m);
 
+        if (m->test_run)
+                return 0;
+
         try_bus_connect =
                 m->kdbus_fd >= 0 ||
                 reexecuting ||
@@ -2636,6 +2648,9 @@ void manager_run_generators(Manager *m) {
 
         assert(m);
 
+        if (m->test_run)
+                return;
+
         generator_path = m->running_as == SYSTEMD_SYSTEM ? SYSTEM_GENERATOR_PATH : USER_GENERATOR_PATH;
         d = opendir(generator_path);
         if (!d) {