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 784ff5d01b4646b3f049c1952f5d2d492fc2c42e..146199713bd24169f302ad770aa350b4782f2f08 100644 (file)
--- a/tests/libustctl_function_tests/libustctl_function_tests.c
+++ b/tests/libustctl_function_tests/libustctl_function_tests.c
@@ -20,6 +20,8 @@
 #include <stdio.h>
 #include <unistd.h>
 #include <sys/types.h>
+#include <sys/wait.h>
+#include <errno.h>
 
 #include <ust/marker.h>
 #include <ust/ustctl.h>
@@ -135,15 +137,20 @@ 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");
 
        printf("##### Tests that definetly should work are completed #####\n");
        printf("############## Start expected failure cases ##############\n");
 
        tap_ok(ustctl_set_marker_state(trace, "ust","bar", 1, pid),
               "Enable already enabled marker ust/bar");
-
-       tap_ok(ustctl_set_marker_state(trace, "ustl", "blar", 1, pid),
-              "Enable non-existent marker ustl blar");
+       tap_ok(EEXIST == errno,
+              "Right error code for enabling an already enabled marker");
 
        tap_ok(ustctl_start_trace(trace, pid),
               "Start a non-existent trace");
@@ -155,14 +162,12 @@ static void ustctl_function_tests(pid_t pid)
 
 }
 
-
-int main()
+int main(int argc, char **argv)
 {
-       int i, status, pipefd[2];
+       int i, status;
        pid_t parent_pid, child_pid;
-       FILE *pipe_file;
 
-       tap_plan(27);
+       tap_plan(28);
 
        printf("Function tests for ustctl\n");