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<?php
namespace GuzzleHttp\Subscriber\Cache;
use GuzzleHttp\Message\MessageFactory;
use PHPUnit_Framework_TestCase;
/**
* Test the Utils class.
*
* @class UtilsTest
*/
class UtilsTest extends PHPUnit_Framework_TestCase
{
/**
* Test that a max-age of zero isn't returned as null.
*/
public function testGetMaxAgeZero()
{
$messageFactory = new MessageFactory();
$response = $messageFactory->createResponse(200, ['Cache-Control' => 's-maxage=0']);
$this->assertSame(0, Utils::getMaxAge($response));
$response = $messageFactory->createResponse(200, ['Cache-Control' => 'max-age=0']);
$this->assertSame(0, Utils::getMaxAge($response));
$response = $messageFactory->createResponse(200, ['Expires' => gmdate('D, d M Y H:i:s') . ' GMT']);
$this->assertLessThanOrEqual(0, Utils::getMaxAge($response));
}
/**
* Test that a response with no max-age information returns null.
*/
public function testGetMaxAgeNull()
{
$messageFactory = new MessageFactory();
$response = $messageFactory->createResponse(200);
$this->assertSame(null, Utils::getMaxAge($response));
}
/**
* Test that a response that is zero fresh returns zero and not null.
*/
public function testGetFreshnessZero()
{
$messageFactory = new MessageFactory();
$response = $messageFactory->createResponse(200,
[
'Cache-Control' => 'max-age=0',
'Age' => 0,
]);
$this->assertSame(0, Utils::getFreshness($response));
}
/**
* Test that responses that can't have freshness determined return null.
*/
public function testGetFreshnessNull()
{
$messageFactory = new MessageFactory();
$response = $messageFactory->createResponse(200);
$this->assertSame(null, Utils::getFreshness($response));
}
}