'\'attachment\', specifying a filename of foo-Ã€.html.
Using RFC2231 encoded UTF-8, with double quotes around the parameter
value.
The parameter is invalid, thus should be ignored.'

def test_attwithfn2231quot(self, header_checker):

    header_checker.check_ignored('attachment;    filename*="UTF-8\'\'foo-%c3%a4.html"')
