public function testWriteSession() {
$this->memcache
->expects($this
->once())
->method('set')
->with(self::PREFIX . 'id', 'data', 0, $this
->equalTo(time() + self::TTL, 2))
->will($this
->returnValue(true));
$this
->assertTrue($this->storage
->write('id', 'data'));
}