function test_pageId()
{
$html1 = '<html><head>' . '<meta name="application-name" content="sitecake" data-pageid="1234567890abcdefgh"/>' . '</head><body>' . '</body></html>';
$page = new Page($html1);
$this->assertEquals('1234567890abcdefgh', $page->pageId());
$html2 = '<html><head>' . '<meta name="application-name" content="sitecake" data-id="1234567890abcdefgh"/>' . '</head><body>' . '</body></html>';
$page = new Page($html2);
$this->assertNull($page->pageId());
$html3 = '<html><head>' . '<meta name="application-name" content="sitecake"/>' . '</head><body>' . '</body></html>';
$page = new Page($html3);
$this->assertNull($page->pageId());
}
