/**
* Test diffing sets
*/
public function testSdiff()
{
$this->redis->del('testSdiff1');
$this->redis->del('testSdiff2');
$this->redis->sadd('testSdiff1', 'a');
$this->redis->sadd('testSdiff1', 'b');
$this->redis->sadd('testSdiff1', 'c');
$this->redis->sadd('testSdiff2', 'b');
$this->redis->sadd('testSdiff2', 'c');
$this->redis->sadd('testSdiff2', 'd');
$diff = $this->redis->sdiff(array('testSdiff1', 'testSdiff2'));
$this->assertContains('a', $diff);
$this->assertEquals(1, count($diff));
}
