public function testZScan()
{
$this->redis->del('testZScan');
$key = 'testZScan';
$members = ['testScan', 'testScanHello', 'testScanHallo', 'testScanHaallo', 'testScanHoula', 'testScan2', 'testScanHello2', 'testScanHallo2', 'testScanHaallo2', 'testScanHoula2', 'testScan3', 'testScanHello3', 'testScanHallo3', 'testScanHaallo3', 'testScanHoula3'];
foreach ($members as $member) {
$this->redis->zAdd($key, 1.0, $member);
}
// a bit tricky to test, since we can't determine the outcome of a single iteration (or can we?)
// so we just iterate until the iterator is exhausted and then compare the final results
$iterator = 0;
// we unroll the iteration here, to have better control over the involved values
$result = $this->redis->zScan($key, $iterator);
$this->assertNotEmpty($result);
foreach ($members as $member) {
$this->assertArrayHasKey($member, $result);
}
$this->assertSame(15, count($result));
$this->assertSame(0, $iterator);
$smembers = $this->redis->zRange($key, 0, 100, true);
ksort($smembers);
ksort($result);
$this->assertSame($smembers, $result);
$result1 = $this->redis->zScan($key, $iterator, 'testScanH?llo', 20);
$this->assertArrayHasKey('testScanHello', $result1);
$this->assertArrayHasKey('testScanHallo', $result1);
$this->assertEquals(2, count($result1));
$this->assertSame(0, $iterator);
}
/**
* See scan().
*
* @link http://redis.io/commands/zscan
*
* @param string $key the sorted set to iterate over
* @param int $iterator a reference to the cursor
* @param string $pattern a pattern that the keys have to match
* @param int $count the number of keys to return
* @return string[]
*/
public function zScan($key, &$iterator, $pattern = '', $count = 10)
{
try {
return $this->client->zScan($key, $iterator, $pattern, $count);
} catch (Exception $e) {
$args = func_get_args();
$args[1] =& $iterator;
return $this->handleException($e, __FUNCTION__, $args);
}
}
