Raise an exception if the scheduler was already closed.

ruby · Oct 1, 2020 · 7f29020 · 7f29020
1 parent 1366010
commit 7f29020
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/test/fiber/scheduler.rb b/test/fiber/scheduler.rb
@@ -101,6 +101,8 @@ def run
   end
 
   def close
+    raise "Scheduler already closed!" if @closed
+
     self.run
   ensure
     @closed = true