/**
* Test basic methods.
* @covers Rentalhost\VanillaPagination\Pagination::__construct
* @covers Rentalhost\VanillaPagination\Pagination::getClamp
* @covers Rentalhost\VanillaPagination\Pagination::getCurrentPage
* @covers Rentalhost\VanillaPagination\Pagination::setCurrentPage
* @covers Rentalhost\VanillaPagination\Pagination::getTotalItems
* @covers Rentalhost\VanillaPagination\Pagination::getItemsPerPage
* @covers Rentalhost\VanillaPagination\Pagination::getTotalPages
* @covers Rentalhost\VanillaPagination\Pagination::getCurrentPageOffsets
* @covers Rentalhost\VanillaPagination\Pagination::hasPage
* @covers Rentalhost\VanillaPagination\Pagination::hasPages
*/
public function testBasic()
{
$pagination = new Pagination(200, 20);
// Initial values.
static::assertSame(1, $pagination->getCurrentPage());
static::assertSame(200, $pagination->getTotalItems());
static::assertSame(20, $pagination->getItemsPerPage());
static::assertSame(10, $pagination->getTotalPages());
static::assertTrue($pagination->hasPages());
$pageOffsets = $pagination->getCurrentPageOffsets();
static::assertSame(1, $pageOffsets->firstItem);
static::assertSame(20, $pageOffsets->lastItem);
// Check if all pages exists, correctly.
for ($i = 1; $i <= 10; $i++) {
static::assertTrue($pagination->hasPage($i));
}
// Advance to next page.
static::assertTrue($pagination->setCurrentPage(2));
static::assertSame(2, $pagination->getCurrentPage());
$pageOffsets = $pagination->getCurrentPageOffsets();
static::assertSame(21, $pageOffsets->firstItem);
static::assertSame(40, $pageOffsets->lastItem);
// Advance to last page.
static::assertTrue($pagination->setCurrentPage(10));
static::assertSame(10, $pagination->getCurrentPage());
$pageOffsets = $pagination->getCurrentPageOffsets();
static::assertSame(181, $pageOffsets->firstItem);
static::assertSame(200, $pageOffsets->lastItem);
// Attempts to navigate to a page beyond the first.
static::assertFalse($pagination->setCurrentPage(0));
static::assertSame(1, $pagination->getCurrentPage());
$pageOffsets = $pagination->getCurrentPageOffsets();
static::assertSame(1, $pageOffsets->firstItem);
static::assertSame(20, $pageOffsets->lastItem);
// Attempts to navigate to a page beyond the last.
static::assertFalse($pagination->setCurrentPage(11));
static::assertSame(10, $pagination->getCurrentPage());
$pageOffsets = $pagination->getCurrentPageOffsets();
static::assertSame(181, $pageOffsets->firstItem);
static::assertSame(200, $pageOffsets->lastItem);
}
