test-execute: skip several tests when running in container

(cherry picked from commit 642d1a6)

Resolves: #1823767

src/test/test-execute.c

@@ -616,14 +616,24 @@ static void test_exec_privatenetwork(Manager *m) {
 
 static void test_exec_oomscoreadjust(Manager *m) {
         test(m, "exec-oomscoreadjust-positive.service", 0, CLD_EXITED);
+
+        if (detect_container() > 0) {
+                log_notice("Testing in container, skipping remaining tests in %s", __func__);
+                return;
+        }
         test(m, "exec-oomscoreadjust-negative.service", 0, CLD_EXITED);
 }
 
 static void test_exec_ioschedulingclass(Manager *m) {
         test(m, "exec-ioschedulingclass-none.service", 0, CLD_EXITED);
         test(m, "exec-ioschedulingclass-idle.service", 0, CLD_EXITED);
-        test(m, "exec-ioschedulingclass-realtime.service", 0, CLD_EXITED);
         test(m, "exec-ioschedulingclass-best-effort.service", 0, CLD_EXITED);
+
+        if (detect_container() > 0) {
+                log_notice("Testing in container, skipping remaining tests in %s", __func__);
+                return;
+        }
+        test(m, "exec-ioschedulingclass-realtime.service", 0, CLD_EXITED);
 }
 
 static void test_exec_unsetenvironment(Manager *m) {