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HttpCache: New test for revalidating responses with an expired TTL

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Matthias Pigulla 2017-03-21 18:52:14 +01:00 committed by Fabien Potencier
parent 0259bedec1
commit 067ab52ba0
1 changed files with 36 additions and 0 deletions
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36
src/Symfony/Component/HttpKernel/Tests/HttpCache/HttpCacheTest.php
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@ -809,6 +809,42 @@ class HttpCacheTest extends HttpCacheTestCase
$this->assertTraceNotContains('miss');
}
public function testServesResponseWhileFreshAndRevalidatesWithLastModifiedInformation()
{
$time = \DateTime::createFromFormat('U', time());
$this->setNextResponse(200, array(), 'Hello World', function (Request $request, Response $response) use ($time) {
$response->setSharedMaxAge(10);
$response->headers->set('Last-Modified', $time->format(DATE_RFC2822));
});
// prime the cache
$this->request('GET', '/');
// next request before s-maxage has expired: Serve from cache
// without hitting the backend
$this->request('GET', '/');
$this->assertHttpKernelIsNotCalled();
$this->assertEquals(200, $this->response->getStatusCode());
$this->assertEquals('Hello World', $this->response->getContent());
$this->assertTraceContains('fresh');
sleep(15); // expire the cache
$that = $this;
$this->setNextResponse(304, array(), '', function (Request $request, Response $response) use ($time, $that) {
$that->assertEquals($time->format(DATE_RFC2822), $request->headers->get('IF_MODIFIED_SINCE'));
});
$this->request('GET', '/');
$this->assertHttpKernelIsCalled();
$this->assertEquals(200, $this->response->getStatusCode());
$this->assertEquals('Hello World', $this->response->getContent());
$this->assertTraceContains('stale');
$this->assertTraceContains('valid');
}
public function testReplacesCachedResponsesWhenValidationResultsInNon304Response()
{
$time = \DateTime::createFromFormat('U', time());