workqueue: add test for helper of previous commit.

Signed-off-by: Imran Khan <[email protected]>

drgn_tools/workqueue.py

@@ -684,13 +684,13 @@ class OfflinedDelayedWorksModule(CorelensModule):
     """
     Show delayed works from offlined CPUs.
     Delayed works (with non zero delay), rely on timer-wheel timers for
-    their submission. If these timers don't fire the work does not get
+    their submission. If these timers don't fire, the work does not get
     submitted. So delayed works submitted to an offlined CPU, don't get
     executed even after specified delay because timer-wheel timers on
     offlined CPUs don't get fired in first place.
 
     This corelens module list delayed works on offlined CPUs, so that
-    one can know if a delayed work was left unexececuted, due to the fact
+    one can know if a delayed work was left unexecuted, due to the fact
     that it was submitted on an offlined CPU.
     """
 

tests/test_workqueue.py

@@ -105,3 +105,9 @@ def test_for_each_pending_work_of_pwq(prog: drgn.Program) -> None:
 
 def test_show_all_workqueues(prog: drgn.Program) -> None:
     wq.show_all_workqueues(prog)
+
+
+def test_show_unexpired_delayed_works(
+    prog: drgn.Program,
+) -> None:
+    wq.show_unexpired_delayed_works(prog)