public function testCalculatePages()
{
$handler = new Handler($dataGrid = $this->getMockDataGrid());
$handler->setUpDataHandlerContext();
$handler->setSort('first_name');
$handler->setDirection('asc');
$handler->setDefaultColumn('age');
$handler->setTransformer(function ($el) {
$el['first_name'] = 'Name';
});
$pages = $handler->calculatePages(19, 6, 9);
$this->assertEquals($pages[0], 6);
$this->assertEquals($pages[1], 3);
$this->assertNull($pages[2]);
}
