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<?php
declare(strict_types=1);
namespace LaminasTest\Stdlib;
use Laminas\Stdlib\SplPriorityQueue;
use PHPUnit\Framework\Attributes\Group;
use PHPUnit\Framework\TestCase;
use Traversable;
use function array_values;
use function iterator_to_array;
use function serialize;
use function unserialize;
use function var_export;
#[Group('Laminas_Stdlib')]
final class SplPriorityQueueTest extends TestCase
{
/** @var SplPriorityQueue */
protected $queue;
protected function setUp(): void
{
$this->queue = new SplPriorityQueue();
$this->queue->insert('foo', 3);
$this->queue->insert('bar', 4);
$this->queue->insert('baz', 2);
$this->queue->insert('bat', 1);
}
public function testMaintainsInsertOrderForDataOfEqualPriority(): void
{
$queue = new SplPriorityQueue();
$queue->insert('foo', 1000);
$queue->insert('bar', 1000);
$queue->insert('baz', 1000);
$queue->insert('bat', 1000);
$expected = ['foo', 'bar', 'baz', 'bat'];
$test = array_values(iterator_to_array($queue));
self::assertEquals($expected, $test);
}
public function testSerializationAndDeserializationShouldMaintainState(): void
{
$s = serialize($this->queue);
$unserialized = unserialize($s);
self::assertInstanceOf(Traversable::class, $unserialized);
// assert same size
self::assertSameSize($this->queue, $unserialized);
// assert same values
self::assertSame(iterator_to_array($this->queue), iterator_to_array($unserialized));
// assert equal
self::assertEquals($this->queue, $unserialized);
}
public function testCanRetrieveQueueAsArray(): void
{
$expected = [
'bar',
'foo',
'baz',
'bat',
];
$test = $this->queue->toArray();
self::assertSame($expected, $test, var_export($test, true));
}
}
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