public function testConstruct()
{
$page = new Page();
$this->assertInstanceOf('Doctrine\\Common\\Collections\\Collection', $page->getChildPages());
$this->assertEmpty($page->getChildPages()->toArray());
$slug = new Slug();
$slug->setUrl('/');
$this->assertInstanceOf('Doctrine\\Common\\Collections\\Collection', $page->getSlugs());
$this->assertEquals([$slug], $page->getSlugs()->toArray());
$now = new \DateTime();
$this->assertInstanceOf('DateTime', $page->getCreatedAt());
$this->assertLessThanOrEqual($now, $page->getCreatedAt());
$this->assertInstanceOf('DateTime', $page->getUpdatedAt());
$this->assertLessThanOrEqual($now, $page->getUpdatedAt());
}
