EVOLUTION-MANAGER

Edit File: ResponseCacheStrategyTest.php

<?php

/*
 * This file is part of the Symfony package.
 *
 * (c) Fabien Potencier <fabien@symfony.com>
 *
 * This code is partially based on the Rack-Cache library by Ryan Tomayko,
 * which is released under the MIT license.
 * (based on commit 02d2b48d75bcb63cf1c0c7149c077ad256542801)
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Symfony\Component\HttpKernel\Tests\HttpCache;

use PHPUnit\Framework\TestCase;
use Symfony\Component\HttpFoundation\Response;
use Symfony\Component\HttpKernel\HttpCache\ResponseCacheStrategy;

class ResponseCacheStrategyTest extends TestCase
{
    public function testMinimumSharedMaxAgeWins()
    {
        $cacheStrategy = new ResponseCacheStrategy();

$response1 = new Response();
        $response1->setSharedMaxAge(60);
        $cacheStrategy->add($response1);

$response2 = new Response();
        $response2->setSharedMaxAge(3600);
        $cacheStrategy->add($response2);

$response = new Response();
        $response->setSharedMaxAge(86400);
        $cacheStrategy->update($response);

$this->assertSame('60', $response->headers->getCacheControlDirective('s-maxage'));
    }

public function testSharedMaxAgeNotSetIfNotSetInAnyEmbeddedRequest()
    {
        $cacheStrategy = new ResponseCacheStrategy();

$response1 = new Response();
        $response1->setSharedMaxAge(60);
        $cacheStrategy->add($response1);

$response2 = new Response();
        $cacheStrategy->add($response2);

$response = new Response();
        $response->setSharedMaxAge(86400);
        $cacheStrategy->update($response);

$this->assertFalse($response->headers->hasCacheControlDirective('s-maxage'));
    }

public function testSharedMaxAgeNotSetIfNotSetInMasterRequest()
    {
        $cacheStrategy = new ResponseCacheStrategy();

$response1 = new Response();
        $response1->setSharedMaxAge(60);
        $cacheStrategy->add($response1);

$response2 = new Response();
        $response2->setSharedMaxAge(3600);
        $cacheStrategy->add($response2);

$response = new Response();
        $cacheStrategy->update($response);

$this->assertFalse($response->headers->hasCacheControlDirective('s-maxage'));
    }

public function testMasterResponseNotCacheableWhenEmbeddedResponseRequiresValidation()
    {
        $cacheStrategy = new ResponseCacheStrategy();

$embeddedResponse = new Response();
        $embeddedResponse->setLastModified(new \DateTime());
        $cacheStrategy->add($embeddedResponse);

$masterResponse = new Response();
        $masterResponse->setSharedMaxAge(3600);
        $cacheStrategy->update($masterResponse);

$this->assertTrue($masterResponse->headers->hasCacheControlDirective('no-cache'));
        $this->assertTrue($masterResponse->headers->hasCacheControlDirective('must-revalidate'));
        $this->assertFalse($masterResponse->isFresh());
    }

public function testValidationOnMasterResponseIsNotPossibleWhenItContainsEmbeddedResponses()
    {
        $cacheStrategy = new ResponseCacheStrategy();

// This master response uses the "validation" model
        $masterResponse = new Response();
        $masterResponse->setLastModified(new \DateTime());
        $masterResponse->setEtag('foo');

// Embedded response uses "expiry" model
        $embeddedResponse = new Response();
        $masterResponse->setSharedMaxAge(3600);
        $cacheStrategy->add($embeddedResponse);

$cacheStrategy->update($masterResponse);

$this->assertFalse($masterResponse->isValidateable());
        $this->assertFalse($masterResponse->headers->has('Last-Modified'));
        $this->assertFalse($masterResponse->headers->has('ETag'));
        $this->assertTrue($masterResponse->headers->hasCacheControlDirective('no-cache'));
        $this->assertTrue($masterResponse->headers->hasCacheControlDirective('must-revalidate'));
    }

public function testMasterResponseWithValidationIsUnchangedWhenThereIsNoEmbeddedResponse()
    {
        $cacheStrategy = new ResponseCacheStrategy();

$masterResponse = new Response();
        $masterResponse->setLastModified(new \DateTime());
        $cacheStrategy->update($masterResponse);

$this->assertTrue($masterResponse->isValidateable());
    }

public function testMasterResponseWithExpirationIsUnchangedWhenThereIsNoEmbeddedResponse()
    {
        $cacheStrategy = new ResponseCacheStrategy();

$masterResponse = new Response();
        $masterResponse->setSharedMaxAge(3600);
        $cacheStrategy->update($masterResponse);

$this->assertTrue($masterResponse->isFresh());
    }

public function testMasterResponseIsNotCacheableWhenEmbeddedResponseIsNotCacheable()
    {
        $cacheStrategy = new ResponseCacheStrategy();

$masterResponse = new Response();
        $masterResponse->setSharedMaxAge(3600); // Public, cacheable

/* This response has no validation or expiration information.
           That makes it uncacheable, it is always stale.
           (It does *not* make this private, though.) */
        $embeddedResponse = new Response();
        $this->assertFalse($embeddedResponse->isFresh()); // not fresh, as no lifetime is provided