tests: Add a comment in libustctl function tests

[ust.git] / tests / libustctl_function_tests / libustctl_function_tests.c

diff --git a/tests/libustctl_function_tests/libustctl_function_tests.c b/tests/libustctl_function_tests/libustctl_function_tests.c
index 7c12695ab2adc579801cd1ef4986dcce82de4211..146199713bd24169f302ad770aa350b4782f2f08 100644 (file)
--- a/tests/libustctl_function_tests/libustctl_function_tests.c
+++ b/tests/libustctl_function_tests/libustctl_function_tests.c
@@ -137,6 +137,10 @@ static void ustctl_function_tests(pid_t pid)
 
        tap_ok(!ustctl_destroy_trace(trace, pid), "ustctl_destroy_trace - without ever starting");
 
+       /*
+        * Activate a non-existent marker, this should be possible as the marker
+        * can be loaded at a later time.
+        */
        tap_ok(ustctl_set_marker_state(trace, "ustl", "blar", 1, pid) == 0,
               "Enable non-existent marker ustl blar");
 
@@ -145,7 +149,7 @@ static void ustctl_function_tests(pid_t pid)
 
        tap_ok(ustctl_set_marker_state(trace, "ust","bar", 1, pid),
               "Enable already enabled marker ust/bar");
-       tap_ok(EEXIST == errno, 
+       tap_ok(EEXIST == errno,
               "Right error code for enabling an already enabled marker");
 
        tap_ok(ustctl_start_trace(trace, pid),