public function provideToStringData() {
return array(
array(
array(),
'',
),
array(
array(
new AcceptHeaderItem('gzip'),
),
'gzip',
),
array(
array(
new AcceptHeaderItem('gzip'),
new AcceptHeaderItem('deflate'),
new AcceptHeaderItem('sdch'),
),
'gzip,deflate,sdch',
),
array(
array(
new AcceptHeaderItem('this;should,not=matter'),
),
'this;should,not=matter',
),
);
}