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<?php |
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namespace Zenstruck\Porpaginas\Tests; |
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use PHPUnit\Framework\TestCase; |
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use Zenstruck\Porpaginas\Arrays\ArrayResult; |
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use Zenstruck\Porpaginas\Pager; |
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/** |
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* @author Kevin Bond <[email protected]> |
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*/ |
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final class PagerTest extends TestCase |
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{ |
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/** |
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* @test |
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*/ |
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public function it_properly_handles_page1(): void |
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{ |
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$pager = $this->createPager(\range(1, 504), 1, 20); |
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$this->assertTrue($pager->haveToPaginate()); |
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$this->assertSame(1, $pager->current()); |
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$this->assertSame(1, $pager->first()); |
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$this->assertSame(2, $pager->next()); |
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$this->assertNull($pager->previous()); |
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$this->assertSame(26, $pager->last()); |
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$this->assertSame(26, $pager->pageCount()); |
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$this->assertSame(504, $pager->totalCount()); |
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$this->assertSame(20, $pager->limit()); |
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$this->assertCount(20, $pager); |
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$this->assertSame(\range(1, 20), \iterator_to_array($pager)); |
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} |
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/** |
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* @test |
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*/ |
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public function it_properly_handles_page2(): void |
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{ |
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$pager = $this->createPager(\range(1, 504), 2, 20); |
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$this->assertTrue($pager->haveToPaginate()); |
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$this->assertSame(2, $pager->current()); |
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$this->assertSame(1, $pager->first()); |
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$this->assertSame(3, $pager->next()); |
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$this->assertSame(1, $pager->previous()); |
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$this->assertCount(20, $pager); |
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$this->assertSame(\range(21, 40), \iterator_to_array($pager)); |
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} |
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/** |
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* @test |
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*/ |
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public function it_properly_handles_the_last_page(): void |
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{ |
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$pager = $this->createPager(\range(1, 504), 26, 20); |
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$this->assertTrue($pager->haveToPaginate()); |
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$this->assertSame(26, $pager->current()); |
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$this->assertSame(1, $pager->first()); |
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$this->assertNull($pager->next()); |
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$this->assertSame(25, $pager->previous()); |
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$this->assertCount(4, $pager); |
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$this->assertSame(\range(501, 504), \iterator_to_array($pager)); |
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} |
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/** |
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* @test |
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*/ |
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public function it_properly_handles_an_empty_page(): void |
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{ |
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$pager = $this->createPager([], 1, 20); |
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$this->assertFalse($pager->haveToPaginate()); |
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$this->assertSame(1, $pager->current()); |
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$this->assertSame(1, $pager->first()); |
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$this->assertNull($pager->next()); |
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$this->assertNull($pager->previous()); |
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$this->assertSame(1, $pager->last()); |
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$this->assertSame(1, $pager->pageCount()); |
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$this->assertSame(0, $pager->totalCount()); |
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$this->assertCount(0, $pager); |
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$this->assertSame([], \iterator_to_array($pager)); |
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} |
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/** |
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* @test |
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*/ |
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public function it_properly_handles_a_single_page(): void |
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{ |
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$pager = $this->createPager(\range(1, 10), 1, 20); |
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$this->assertFalse($pager->haveToPaginate()); |
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$this->assertSame(1, $pager->current()); |
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$this->assertSame(1, $pager->first()); |
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$this->assertNull($pager->next()); |
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$this->assertNull($pager->previous()); |
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$this->assertSame(1, $pager->last()); |
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$this->assertSame(1, $pager->pageCount()); |
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$this->assertSame(10, $pager->totalCount()); |
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$this->assertCount(10, $pager); |
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$this->assertSame(\range(1, 10), \iterator_to_array($pager)); |
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} |
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/** |
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* @test |
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*/ |
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public function it_properly_handles_a_too_large_page_as_the_last_page(): void |
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{ |
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$pager = $this->createPager(\range(1, 504), 30, 20); |
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$this->assertSame(26, $pager->current()); |
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$this->assertSame(1, $pager->first()); |
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$this->assertNull($pager->next()); |
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$this->assertSame(25, $pager->previous()); |
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$this->assertCount(4, $pager); |
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$this->assertSame(\range(501, 504), \iterator_to_array($pager)); |
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} |
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/** |
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* @test |
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*/ |
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public function invalid_page(): void |
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{ |
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$pager = $this->createPager([], 0); |
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$this->assertSame(1, $pager->current()); |
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$pager = $this->createPager([], -1); |
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$this->assertSame(1, $pager->current()); |
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} |
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/** |
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* @test |
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*/ |
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public function invalid_limit(): void |
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{ |
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$pager = $this->createPager([], 1, 0); |
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$this->assertSame(20, $pager->limit()); |
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$pager = $this->createPager([], 1, -1); |
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$this->assertSame(20, $pager->limit()); |
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} |
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protected function createPager(array $results, int $page, int $limit = Pager::DEFAULT_LIMIT): Pager |
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{ |
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return new Pager(new ArrayResult($results), $page, $limit); |
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} |
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} |
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kbond /
porpaginas
