public function testSetsTheXContentDigestResponseHeaderBeforeStoring() {
$cacheKey = $this
->storeSimpleEntry();
$entries = $this
->getStoreMetadata($cacheKey);
list($req, $res) = $entries[0];
$this
->assertEquals('ena94a8fe5ccb19ba61c4c0873d391e987982fbbd3', $res['x-content-digest'][0]);
}