public function min_max_sum_average_and_count_for_non_empty()
{
Sequence::of([1, 2, 3, 4])->collecting($min, Aggregations::min())->collecting($max, Aggregations::max())->collecting($average, Aggregations::average())->collecting($sum, Aggregations::sum())->collecting($count, Aggregations::count())->each();
$this->assertEquals(1, $min);
$this->assertEquals(4, $max);
$this->assertEquals(2.5, $average);
$this->assertEquals(10, $sum);
$this->assertEquals(4, $count);
}
/**
* Returns the largest element.
*
* @param var $comparator default NULL Either a Comparator or a closure to compare.
* @return var
* @throws lang.IllegalArgumentException if streamed and invoked more than once
*/
public function max($comparator = null)
{
return $this->collect(Aggregations::max($comparator));
}
/**
* Creates a new collector counting all elements
*
* @return util.data.ICollector
*/
public static function counting()
{
return Aggregations::count();
}
