public function testToStringFoHeaderBag()
{
$headerBag = new HeaderBag(['X-Session-Id' => '111']);
$this->assertEquals('X-Session-Id: 111' . "\r\n", (string) $headerBag);
$headerBag->set('name', 'jan');
}
/**
* Return an instance with the provided value replacing the specified header.
*
* While header names are case-insensitive, the casing of the header will
* be preserved by this function, and returned from getHeaders().
*
* This method MUST be implemented in such a way as to retain the
* immutability of the message, and MUST return an instance that has the
* new and/or updated header and value.
*
* @param string $name Case-insensitive header field name.
* @param string|string[] $value Header value(s).
* @return static
* @throws \InvalidArgumentException for invalid header names or values.
*/
public function withHeader($name, $value)
{
$this->header->set($name, $value);
return $this;
}
