public function testPsr7Header()
{
$headerBag = new HeaderBag(['HTTP_HOST' => 'localhost']);
$this->assertEquals($headerBag->get('host'), ['localhost']);
}
/**
* Retrieves a message header value by the given case-insensitive name.
*
* This method returns an array of all the header values of the given
* case-insensitive header name.
*
* If the header does not appear in the message, this method MUST return an
* empty array.
*
* @param string $name Case-insensitive header field name.
* @return string[] An array of string values as provided for the given
* header. If the header does not appear in the message, this method MUST
* return an empty array.
*/
public function getHeader($name)
{
return $this->header->get($name);
}
