Pop\Paginator\Paginator::setPerPage PHP Method

    public function setPerPage($perPage = 10)
    {
        $this->perPage = (int) $perPage;
        return $this;
    }

 public function testSetAndGetPerPage()
 {
     $p = new Paginator(array());
     $p->setPerPage(25);
     $this->assertEquals(25, $p->getPerPage());
 }