'\'attachment\', specifying a filename of f%oo.html.
Using RFC2231 encoded UTF-8, with a "%" not starting a percent-escape.
The parameter is invalid, thus should be ignored.'

def test_attwithfn2231nbadpct2(self, header_checker):

    header_checker.check_ignored("attachment;    filename*=UTF-8''f%oo.html")
