diff --git a/support/testing/tests/init/test_systemd.py b/support/testing/tests/init/test_systemd.py
index 472a65db57..60b9c3d032 100644
--- a/support/testing/tests/init/test_systemd.py
+++ b/support/testing/tests/init/test_systemd.py
@@ -340,19 +340,16 @@ class InitSystemSystemdBaseOverlayfs():
 
         # /var/foo/bar is from the pre-populated /var, so it should
         # not be present in the upper of the overlay
-        _, exit_code = self.emulator.run("test -e /run/buildroot/mounts/var/upper/foo/bar")
-        self.assertNotEqual(exit_code, 0)
+        self.assertRunNotOk("test -e /run/buildroot/mounts/var/upper/foo/bar")
 
         # We can write in /var/foo/bar
-        _, exit_code = self.emulator.run("echo barfoo >/var/foo/bar")
-        self.assertEqual(exit_code, 0)
+        self.assertRunOk("echo barfoo >/var/foo/bar")
         # ... and it contains the new content
         out, exit_code = self.emulator.run("cat /var/foo/bar")
         self.assertEqual(exit_code, 0)
         self.assertEqual(out[0], "barfoo")
         # ... and it to appears in the upper
-        _, exit_code = self.emulator.run("test -e /run/buildroot/mounts/var/upper/foo/bar")
-        self.assertEqual(exit_code, 0)
+        self.assertRunOk("test -e /run/buildroot/mounts/var/upper/foo/bar")
         # ... with the new content
         out, exit_code = self.emulator.run("cat /run/buildroot/mounts/var/upper/foo/bar")
         self.assertEqual(exit_code, 0)