public function testRemove() {
$key = 'asdf';
$expiresKey = 'asdf.expires';
$this->inner
->expects($this
->at(0))
->method('remove')
->with($expiresKey);
$this->inner
->expects($this
->at(1))
->method('remove')
->with($key);
$this->cache
->remove($key);
}