def test_filter_querystring(tmpdir):
    url = 'http://httpbin.org/?foo=bar'
    cass_file = str(tmpdir.join('filter_qs.yaml'))
    with vcr.use_cassette(cass_file, filter_query_parameters=['foo']):
        urlopen(url)
    with vcr.use_cassette(cass_file, filter_query_parameters=['foo']) as cass:
        urlopen(url)
        assert cass.requests[0].url not in 'foo'
dataset/ETHPy150Open kevin1024/vcrpy/tests/integration/test_filter.py/test_filter_querystring/swapped operands of `not in`