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HttpCache: New test for revalidating responses with an expired TTL #22099

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HttpCache: New test for revalidating responses with an expired TTL #22099

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fd80c8f
HttpCache: New test for revalidating responses with an expired TTL
mpdude Mar 21, 2017
814a293
fabbot.io
mpdude Mar 21, 2017
fc74362
PHP 5.3: Use $that instead of $this
mpdude Mar 21, 2017
ef2e95f
Fix CS
mpdude Mar 21, 2017
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36 changes: 36 additions & 0 deletions src/Symfony/Component/HttpKernel/Tests/HttpCache/HttpCacheTest.php
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Original file line number Diff line number Diff line change
Expand Up @@ -809,6 +809,42 @@ public function testValidatesCachedResponsesWithETagAndNoFreshnessInformation()
$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());
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