diff --git a/tests/test_os_ops_common.py b/tests/test_os_ops_common.py
index 50a9ef2..7f983c9 100644
--- a/tests/test_os_ops_common.py
+++ b/tests/test_os_ops_common.py
@@ -2860,6 +2860,8 @@ def test_get_process_children__with_child(
         logging.info(f"Parent PID from stdout: {parent_pid}")
         logging.info(f"Expected Child PID from stdout: {expected_child_pid}")
 
+        assert parent_pid == p1.pid
+
         # A short pause to ensure registration in the OS
         # time.sleep(0.5)
 
@@ -2911,9 +2913,9 @@ def test_get_process_children__with_three_children(
         script = (
             "import time, os, subprocess; "
             "s = str(os.getpid()); "
-            "p1 = subprocess.Popen('exec sleep 60', shell=True, stdout=subprocess.PIPE); "
-            "p2 = subprocess.Popen('exec sleep 60', shell=True, stdout=subprocess.PIPE); "
-            "p3 = subprocess.Popen('exec sleep 60', shell=True, stdout=subprocess.PIPE); "
+            "p1 = subprocess.Popen(['sleep', '60'], shell=False, stdout=subprocess.PIPE); "
+            "p2 = subprocess.Popen(['sleep', '60'], shell=False, stdout=subprocess.PIPE); "
+            "p3 = subprocess.Popen(['sleep', '60'], shell=False, stdout=subprocess.PIPE); "
             "s += ':' + str(p1.pid) + ':' + str(p2.pid) + ':' + str(p3.pid); "
             "print(s, flush=True); "
             "time.sleep(60)"
@@ -2943,6 +2945,8 @@ def test_get_process_children__with_three_children(
         # A short pause to ensure registration in the OS
         # time.sleep(0.5)
 
+        assert parent_pid == p.pid
+
         childs = os_ops.get_process_children(parent_pid)
 
         assert childs is not None
@@ -2954,6 +2958,29 @@ def test_get_process_children__with_three_children(
 
         assert actual_child_pids == expected_child_pids
 
+        for i in range(len(childs)):
+            child_cmdline = childs[i].cmdline()
+
+            logging.info("child cmdline: {}".format(
+                child_cmdline,
+            ))
+            assert type(child_cmdline) is list
+
+            if child_cmdline == ["sleep", "60"]:
+                pass
+            elif child_cmdline == ['/usr/bin/coreutils', '--coreutils-prog-shebang=sleep', '/usr/bin/sleep', '60']:
+                # Rocky Linux
+                pass
+            elif child_cmdline == ['/bin/sh', '-c', 'exec sleep 60']:
+                # Rocky Linux 10 (GitHub CI)
+                pass
+            else:
+                logging.error("Unknown child[{}] cmdline {}".format(
+                    i,
+                    child_cmdline,
+                ))
+            continue
+
         p.terminate()
         p.wait()
         return