diff --git a/tests/711_gc.py b/tests/711_gc.py
index b763b583..a029d8e4 100644
--- a/tests/711_gc.py
+++ b/tests/711_gc.py
@@ -12,4 +12,10 @@ gc.collect()
 
 create_garbage()
 create_garbage()
-create_garbage()
\ No newline at end of file
+c = create_garbage()
+
+assert gc.is_tracked(c) == True
+gc.untrack(c)
+assert gc.is_tracked(c) == False
+gc.track(c)
+assert gc.is_tracked(c) == True