add test case for objecet reference arrays
add test case for objecet reference arrays

avalentino/PyTables,PyTables/PyTables,FrancescAlted/PyTables,FrancescAlted/PyTables,PyTables/PyTables,PyTables/PyTables,avalentino/PyTables,FrancescAlted/PyTables,avalentino/PyTables