'\'attachment\', specifying a filename of foo.html.
And an extension parameter "foo" which should be ignored (see Section
4.4 of RFC 6266.).
UA should offer to download the resource as "foo.html".'

def test_attwithfilenameandextparam(self, header_checker):

    header_checker.check_filename('attachment;    foo="bar";    filename="foo.html"', 'foo.html')
