$_SERVER['HTTP_ACCEPT_LANGUAGE'] = 'en-us,en;q=0.5,fr;q=0.3';
$t->is($request->getLanguages(), array('en_US', 'en', 'fr'), '->getLanguages() returns an array with all accepted languages');
// ->getPreferredCulture()
$t->diag('->getPreferredCulture()');
$request->languages = null;
$_SERVER['HTTP_ACCEPT_LANGUAGE'] = '';
$t->is($request->getPreferredCulture(array('fr', 'en')), 'fr', '->getPreferredCulture() returns the first given culture if the client do not send an ACCEPT_LANGUAGE header');
$request->languages = null;
$_SERVER['HTTP_ACCEPT_LANGUAGE'] = 'en-us,en;q=0.5,fr;q=0.3';
$t->is($request->getPreferredCulture(array('fr', 'en')), 'en', '->getPreferredCulture() returns the preferred culture');
$request->languages = null;
$_SERVER['HTTP_ACCEPT_LANGUAGE'] = 'en-us,en;q=0.5,fr';
$t->is($request->getPreferredCulture(array('fr', 'en')), 'fr', '->getPreferredCulture() returns the preferred culture');
// ->getCharsets()
$t->diag('->getCharsets()');
$t->is($request->getCharsets(), array(), '->getCharsets() returns an empty array if the client do not send an ACCEPT_CHARSET header');
$request->charsets = null;
$_SERVER['HTTP_ACCEPT_CHARSET'] = '';
$t->is($request->getCharsets(), array(), '->getCharsets() returns an empty array if the client send an empty ACCEPT_CHARSET header');
$request->charsets = null;
$_SERVER['HTTP_ACCEPT_CHARSET'] = 'ISO-8859-1,utf-8;q=0.7,*;q=0.3';
$t->is($request->getCharsets(), array('ISO-8859-1', 'utf-8', '*'), '->getCharsets() returns an array with all accepted charsets');
// ->getAcceptableContentTypes()
$t->diag('->getAcceptableContentTypes()');
$t->is($request->getAcceptableContentTypes(), array(), '->getAcceptableContentTypes() returns an empty array if the client do not send an ACCEPT header');
$request->acceptableContentTypes = null;
$_SERVER['HTTP_ACCEPT'] = '';
$t->is($request->getAcceptableContentTypes(), array(), '->getAcceptableContentTypes() returns an empty array if the client send an empty ACCEPT header');
$request->acceptableContentTypes = null;
$_SERVER['HTTP_ACCEPT'] = 'text/xml,application/xhtml+xml,application/xml,text/html;q=0.9,text/plain;q=0.8,*/*;q=0.5';
$t->is($request->getAcceptableContentTypes(), array('text/xml', 'application/xml', 'application/xhtml+xml', 'text/html', 'text/plain', '*/*'), '->getAcceptableContentTypes() returns an array with all accepted content types');
