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-rw-r--r--src/test/test-watch-pid.c88
1 files changed, 88 insertions, 0 deletions
diff --git a/src/test/test-watch-pid.c b/src/test/test-watch-pid.c
new file mode 100644
index 0000000..2c6ca0a
--- /dev/null
+++ b/src/test/test-watch-pid.c
@@ -0,0 +1,88 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
+
+#include "log.h"
+#include "manager.h"
+#include "rm-rf.h"
+#include "service.h"
+#include "test-helper.h"
+#include "tests.h"
+
+int main(int argc, char *argv[]) {
+ _cleanup_(rm_rf_physical_and_freep) char *runtime_dir = NULL;
+ _cleanup_(manager_freep) Manager *m = NULL;
+ Unit *a, *b, *c, *u;
+ int r;
+
+ test_setup_logging(LOG_DEBUG);
+
+ if (getuid() != 0)
+ return log_tests_skipped("not root");
+ r = enter_cgroup_subroot();
+ if (r == -ENOMEDIUM)
+ return log_tests_skipped("cgroupfs not available");
+
+ assert_se(set_unit_path(get_testdata_dir()) >= 0);
+ assert_se(runtime_dir = setup_fake_runtime_dir());
+
+ assert_se(manager_new(UNIT_FILE_USER, MANAGER_TEST_RUN_BASIC, &m) >= 0);
+ assert_se(manager_startup(m, NULL, NULL) >= 0);
+
+ assert_se(a = unit_new(m, sizeof(Service)));
+ assert_se(unit_add_name(a, "a.service") >= 0);
+ assert_se(set_isempty(a->pids));
+
+ assert_se(b = unit_new(m, sizeof(Service)));
+ assert_se(unit_add_name(b, "b.service") >= 0);
+ assert_se(set_isempty(b->pids));
+
+ assert_se(c = unit_new(m, sizeof(Service)));
+ assert_se(unit_add_name(c, "c.service") >= 0);
+ assert_se(set_isempty(c->pids));
+
+ assert_se(hashmap_isempty(m->watch_pids));
+ assert_se(manager_get_unit_by_pid(m, 4711) == NULL);
+
+ assert_se(unit_watch_pid(a, 4711) >= 0);
+ assert_se(manager_get_unit_by_pid(m, 4711) == a);
+
+ assert_se(unit_watch_pid(a, 4711) >= 0);
+ assert_se(manager_get_unit_by_pid(m, 4711) == a);
+
+ assert_se(unit_watch_pid(b, 4711) >= 0);
+ u = manager_get_unit_by_pid(m, 4711);
+ assert_se(u == a || u == b);
+
+ assert_se(unit_watch_pid(b, 4711) >= 0);
+ u = manager_get_unit_by_pid(m, 4711);
+ assert_se(u == a || u == b);
+
+ assert_se(unit_watch_pid(c, 4711) >= 0);
+ u = manager_get_unit_by_pid(m, 4711);
+ assert_se(u == a || u == b || u == c);
+
+ assert_se(unit_watch_pid(c, 4711) >= 0);
+ u = manager_get_unit_by_pid(m, 4711);
+ assert_se(u == a || u == b || u == c);
+
+ unit_unwatch_pid(b, 4711);
+ u = manager_get_unit_by_pid(m, 4711);
+ assert_se(u == a || u == c);
+
+ unit_unwatch_pid(b, 4711);
+ u = manager_get_unit_by_pid(m, 4711);
+ assert_se(u == a || u == c);
+
+ unit_unwatch_pid(a, 4711);
+ assert_se(manager_get_unit_by_pid(m, 4711) == c);
+
+ unit_unwatch_pid(a, 4711);
+ assert_se(manager_get_unit_by_pid(m, 4711) == c);
+
+ unit_unwatch_pid(c, 4711);
+ assert_se(manager_get_unit_by_pid(m, 4711) == NULL);
+
+ unit_unwatch_pid(c, 4711);
+ assert_se(manager_get_unit_by_pid(m, 4711) == NULL);
+
+ return 0;
+}