Sometimes when controller process cleanup happens concurrently with testbed teardown...

[nepi.git] / test / testbeds / ns3 / execute.py

diff --git a/test/testbeds/ns3/execute.py b/test/testbeds/ns3/execute.py
index ffefbfc..be7a432 100755 (executable)
--- a/test/testbeds/ns3/execute.py
+++ b/test/testbeds/ns3/execute.py
@@ -78,7 +78,12 @@ class Ns3ExecuteTestCase(unittest.TestCase):
         instance.shutdown()
 
     def tearDown(self):
-        shutil.rmtree(self.root_dir)
+        try:
+            shutil.rmtree(self.root_dir)
+        except:
+            # retry
+            time.sleep(0.1)
+            shutil.rmtree(self.root_dir)
 
 if __name__ == '__main__':
     unittest.main()