public function getFormatToMimeTypeMapProvider() {
return array(
array(
null,
array(
null,
'unexistent-mime-type',
),
),
array(
'txt',
array(
'text/plain',
),
),
array(
'js',
array(
'application/javascript',
'application/x-javascript',
'text/javascript',
),
),
array(
'css',
array(
'text/css',
),
),
array(
'json',
array(
'application/json',
'application/x-json',
),
),
array(
'xml',
array(
'text/xml',
'application/xml',
'application/x-xml',
),
),
array(
'rdf',
array(
'application/rdf+xml',
),
),
array(
'atom',
array(
'application/atom+xml',
),
),
);
}