public function test_sUnionStore()
{
$this->assertEquals('sunionstore d k', $this->redis->sUnionStore('d', 'k'));
$this->assertEquals('sunionstore d k1 k2', $this->redis->sUnionStore('d', 'k1', 'k2'));
$this->assertEquals('sunionstore d k1 k2', $this->redis->sUnionStore('d', array('k1', 'k2')));
}
