Pinq\ICollection::where PHP Метод

    public function where(callable $predicate);

 /**
  * @dataProvider oneToTen
  */
 public function testThatClearRemovesAllScopedItems(\Pinq\ICollection $collection, array $data)
 {
     $collection->where(function ($i) {
         return $i <= 5;
     })->clear();
     $this->assertMatches($collection, [5 => 6, 6 => 7, 7 => 8, 8 => 9, 9 => 10]);
 }