public function testRemovesEntriesForKeyWithPurge() {
$request = Request::create('/foo');
$this->store
->write($request, new Response('foo'));
$this
->assertNotEmpty($this
->getStoreMetadata($request));
$this
->assertTrue($this->store
->purge('/foo'));
$this
->assertEmpty($this
->getStoreMetadata($request));
$this
->assertFalse($this->store
->purge('/bar'));
}