/**
  * @dataProvider validPrecisionThresholdProvider
  *
  * @param $threshold
  */
 public function testPrecisionThreshold($threshold)
 {
     $agg = new Cardinality('threshold');
     $agg->setPrecisionThreshold($threshold);
     $this->assertNotNull($agg->getParam('precision_threshold'));
     $this->assertInternalType('int', $agg->getParam('precision_threshold'));
 }