/**
* @dataProvider previousAndNextPostsDataProvider
*/
public function testPreviousAndNextPosts($postCount, $currentPostIndex)
{
$pc = new MockPieCrust();
$pc->getConfig()->setValue('blog/posts_per_page', 5);
$pc->getConfig()->setValue('blog/date_format', 'F j, Y');
$posts = $this->buildPaginationDataSource($pc, $postCount);
// The pagination data source is ordered in reverse
// chronological order. Let's reverse it to be able
// to index next/current/previous posts easily.
// (the Paginator will reorder them internally)
$posts = array_reverse($posts);
$page = $posts[$currentPostIndex];
$paginator = new Paginator($page);
$paginator->setPaginationDataSource($posts);
$nextPost = $paginator->next_post();
$prevPost = $paginator->prev_post();
if ($currentPostIndex > 0) {
$this->assertEquals($posts[$currentPostIndex - 1]->getUri(), $prevPost['slug']);
} else {
$this->assertNull($prevPost);
}
if ($currentPostIndex < $postCount - 1) {
$this->assertEquals($posts[$currentPostIndex + 1]->getUri(), $nextPost['slug']);
} else {
$this->assertNull($nextPost);
}
}
