public function testSortedSets()
{
$this->assertEquals(1, $this->credis->zAdd('myset', 1, 'Hello'));
$this->assertEquals(1, $this->credis->zAdd('myset', 2.123, 'World'));
$this->assertEquals(1, $this->credis->zAdd('myset', 10, 'And'));
$this->assertEquals(1, $this->credis->zAdd('myset', 11, 'Goodbye'));
$this->assertEquals(4, count($this->credis->zRangeByScore('myset', '-inf', '+inf')));
$this->assertEquals(2, count($this->credis->zRangeByScore('myset', '1', '9')));
$range = $this->credis->zRangeByScore('myset', '-inf', '+inf', array('limit' => array(1, 2)));
$this->assertEquals(2, count($range));
$this->assertEquals('World', $range[0]);
$this->assertEquals('And', $range[1]);
$range = $this->credis->zRangeByScore('myset', '-inf', '+inf', array('withscores' => true, 'limit' => array(1, 2)));
$this->assertEquals(2, count($range));
$this->assertTrue(array_key_exists('World', $range));
$this->assertEquals(2.123, $range['World']);
$this->assertTrue(array_key_exists('And', $range));
$this->assertEquals(10, $range['And']);
$range = $this->credis->zRangeByScore('myset', 10, '+inf', array('withscores' => true));
$this->assertEquals(2, count($range));
$this->assertTrue(array_key_exists('And', $range));
$this->assertEquals(10, $range['And']);
$this->assertTrue(array_key_exists('Goodbye', $range));
$this->assertEquals(11, $range['Goodbye']);
// withscores-option is off
$range = $this->credis->zRangeByScore('myset', '-inf', '+inf', array('withscores'));
$this->assertEquals(4, count($range));
$this->assertEquals(range(0, 3), array_keys($range));
// expecting numeric array without scores
$range = $this->credis->zRangeByScore('myset', '-inf', '+inf', array('withscores' => false));
$this->assertEquals(4, count($range));
$this->assertEquals(range(0, 3), array_keys($range));
}