public function testSetNotModified()
{
$response = new Response();
$response->setHeaders(array('Allow' => 'test-value-to-be-removed', 'Content-Encoding' => 'test-value-to-be-removed', 'Content-Language' => 'test-value-to-be-removed', 'X-Some-Header' => 'test-value-to-NOT-be-removed'));
$response->setNotModified();
$this->assertEquals($response->getStatusCode(), 304);
$this->assertNull($response->getHeader('Allow'));
$this->assertNull($response->getHeader('Content-Encoding'));
$this->assertNull($response->getHeader('Content-Language'));
$this->assertNotNull($response->getHeader('X-Some-Header'));
}
