public function testPrevLink()
{
$list = new PaginatedList(new ArrayList());
$list->setTotalItems(50);
$this->assertNull($list->PrevLink());
$list->setCurrentPage(2);
$this->assertContains('start=0', $list->PrevLink());
$list->setCurrentPage(3);
$this->assertContains('start=10', $list->PrevLink());
$list->setCurrentPage(5);
$this->assertContains('start=30', $list->PrevLink());
// Disable paging
$list->setPageLength(0);
$this->assertNull($list->PrevLink());
}
