public function testSetCache()
{
$response = new Response(new App());
$date = date('r');
$options = ['etag' => '12345678', 'last-modified' => $date, 'max-age' => 300, 'must-revalidate'];
$response->setCache($options);
$this->assertEquals('12345678', $response->getHeaderLine('ETag'));
$this->assertEquals($date, $response->getHeaderLine('Last-Modified'));
$this->assertEquals('max-age=300, must-revalidate', $response->getHeaderLine('Cache-Control'));
}
