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<?php
/**
* Test: Nette\Utils\Paginator Base:0 Page:3 test.
*/
declare(strict_types=1);
use Nette\Utils\Paginator;
use Tester\Assert;
require __DIR__ . '/../bootstrap.php';
test('adjusts page when exceeding total count for zero-based indexing', function () {
$paginator = new Paginator;
$paginator->itemCount = 7;
$paginator->itemsPerPage = 6;
$paginator->base = 0;
$paginator->page = 3;
Assert::same(1, $paginator->page);
Assert::same(2, $paginator->pageCount);
Assert::same(0, $paginator->firstPage);
Assert::same(1, $paginator->lastPage);
Assert::same(7, $paginator->firstItemOnPage);
Assert::same(7, $paginator->lastItemOnPage);
Assert::same(6, $paginator->offset);
Assert::same(0, $paginator->countdownOffset);
Assert::same(1, $paginator->length);
});
test('normalizes negative page value to first page', function () {
$paginator = new Paginator;
$paginator->itemCount = 7;
$paginator->itemsPerPage = 6;
$paginator->base = 0;
$paginator->page = -1;
Assert::same(0, $paginator->page);
Assert::same(1, $paginator->firstItemOnPage);
Assert::same(6, $paginator->lastItemOnPage);
Assert::same(0, $paginator->offset);
Assert::same(1, $paginator->countdownOffset);
Assert::same(6, $paginator->length);
});
test('handles single-page pagination with exact fit', function () {
$paginator = new Paginator;
$paginator->itemCount = 7;
$paginator->itemsPerPage = 7;
$paginator->base = 0;
$paginator->page = -1;
Assert::same(0, $paginator->page);
Assert::same(1, $paginator->pageCount);
Assert::same(0, $paginator->firstPage);
Assert::same(0, $paginator->lastPage);
Assert::same(1, $paginator->firstItemOnPage);
Assert::same(7, $paginator->lastItemOnPage);
Assert::same(0, $paginator->offset);
Assert::same(0, $paginator->countdownOffset);
Assert::same(7, $paginator->length);
});
test('treats negative item count as empty result', function () {
$paginator = new Paginator;
$paginator->itemCount = -1;
$paginator->itemsPerPage = 7;
$paginator->base = 0;
$paginator->page = -1;
Assert::same(0, $paginator->page);
Assert::same(0, $paginator->pageCount);
Assert::same(0, $paginator->firstPage);
Assert::same(0, $paginator->lastPage);
Assert::same(0, $paginator->firstItemOnPage);
Assert::same(0, $paginator->lastItemOnPage);
Assert::same(0, $paginator->offset);
Assert::same(0, $paginator->countdownOffset);
Assert::same(0, $paginator->length);
});
test('adapts pagination for one-based indexing', function () {
$paginator = new Paginator;
$paginator->itemCount = 7;
$paginator->itemsPerPage = 6;
$paginator->base = 1;
$paginator->page = 3;
Assert::same(2, $paginator->page);
Assert::same(2, $paginator->pageCount);
Assert::same(1, $paginator->firstPage);
Assert::same(2, $paginator->lastPage);
Assert::same(7, $paginator->firstItemOnPage);
Assert::same(7, $paginator->lastItemOnPage);
Assert::same(6, $paginator->offset);
Assert::same(0, $paginator->countdownOffset);
Assert::same(1, $paginator->length);
});
test('determines first/last page status and item boundaries', function () {
$paginator = new Paginator;
// ItemCount: 0
$paginator->setItemCount(0);
Assert::true($paginator->isFirst());
Assert::true($paginator->isLast());
Assert::same(0, $paginator->firstItemOnPage);
Assert::same(0, $paginator->lastItemOnPage);
// ItemCount: 1
$paginator->setItemCount(1);
Assert::true($paginator->isFirst());
Assert::true($paginator->isLast());
Assert::same(1, $paginator->firstItemOnPage);
Assert::same(1, $paginator->lastItemOnPage);
// ItemCount: 2
$paginator->setItemCount(2);
Assert::true($paginator->isFirst());
Assert::false($paginator->isLast());
Assert::same(1, $paginator->firstItemOnPage);
Assert::same(1, $paginator->lastItemOnPage);
// Page 2
$paginator->setPage(2);
Assert::false($paginator->isFirst());
Assert::true($paginator->isLast());
Assert::same(2, $paginator->firstItemOnPage);
Assert::same(2, $paginator->lastItemOnPage);
});
test('manages pagination when total item count is undefined', function () {
$paginator = new Paginator;
$paginator->itemsPerPage = 6;
$paginator->base = 0;
$paginator->page = 3;
Assert::same(3, $paginator->page);
Assert::null($paginator->pageCount);
Assert::same(0, $paginator->firstPage);
Assert::null($paginator->lastPage);
Assert::same(19, $paginator->firstItemOnPage);
Assert::same(24, $paginator->lastItemOnPage);
Assert::same(18, $paginator->offset);
Assert::null($paginator->countdownOffset);
Assert::same(6, $paginator->length);
});
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