def test_option_w_unset(pyi_builder):
 pyi_builder.test_source("\n        import sys\n        assert 'ignore' not in sys.warnoptions\n        ")

def test_option_w_unset ( pyi_builder ) : pyi_builder . test_source ( "\n        import sys\n        assert 'ignore' not in sys.warnoptions\n        " )
test to ensure that option w is not set by default .