Ouzo\Utilities\Arrays::intersect PHP Метод

    public static function intersect(array $array1, array $array2)
    {
        return array_intersect($array1, $array2);
    }

 /**
  * @test
  */
 public function shouldReturnArraysIntersection()
 {
     //given
     $a1 = array('1', '4', '5');
     $a2 = array('1', '4', '6');
     //when
     $intersection = Arrays::intersect($a1, $a2);
     //then
     $this->assertEquals(array('1', '4'), $intersection);
 }