Ensure that dumping doesn't crash for populated ConfigSettings.

diff --git a/h5config/test.py b/h5config/test.py
index a0e218244a23c42c14da10b628884db28a75eb78..d49bdcce6abe7708960a5478a8e1589998d18fa7 100644 (file)
--- a/h5config/test.py
+++ b/h5config/test.py
@@ -179,6 +179,7 @@ def _file_storage_tests(storage):
         assert not nd, nd
         for key,value in _ALTERNATIVES.items():
             c[key] = value
+        c.dump()
         c.save()
         na = dict(_non_alternatives(c))
         assert not na, na