/**
* @param \Iterator $it
* @param number $min
* @param number $max
* @param number $avg
* @param number $sum
* @param callable $predicate
*
* @dataProvider numberDataProvider
*/
public function testAverage(\Iterator $it, $min, $max, $avg, $sum, callable $predicate = null)
{
$this->assertEquals($avg, $it->average($predicate));
}