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<?php declare(strict_types=1);
/*
* This file is part of sebastian/object-enumerator.
*
* (c) Sebastian Bergmann <sebastian@phpunit.de>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace SebastianBergmann\ObjectEnumerator;
use PHPUnit\Framework\Attributes\CoversClass;
use PHPUnit\Framework\TestCase;
use SebastianBergmann\ObjectEnumerator\Fixtures\ExceptionThrower;
use stdClass;
#[CoversClass(Enumerator::class)]
class EnumeratorTest extends TestCase
{
public function testEnumeratesSingleObject(): void
{
$a = new stdClass;
$objects = (new Enumerator)->enumerate($a);
$this->assertCount(1, $objects);
$this->assertSame($a, $objects[0]);
}
public function testEnumeratesArrayWithSingleObject(): void
{
$a = new stdClass;
$objects = (new Enumerator)->enumerate([$a]);
$this->assertCount(1, $objects);
$this->assertSame($a, $objects[0]);
}
public function testEnumeratesArrayWithTwoReferencesToTheSameObject(): void
{
$a = new stdClass;
$objects = (new Enumerator)->enumerate([$a, $a]);
$this->assertCount(1, $objects);
$this->assertSame($a, $objects[0]);
}
public function testEnumeratesArrayOfObjects(): void
{
$a = new stdClass;
$b = new stdClass;
$objects = (new Enumerator)->enumerate([$a, $b, null]);
$this->assertCount(2, $objects);
$this->assertSame($a, $objects[0]);
$this->assertSame($b, $objects[1]);
}
public function testEnumeratesObjectWithAggregatedObject(): void
{
$a = new stdClass;
$b = new stdClass;
$a->b = $b;
$a->c = null;
$objects = (new Enumerator)->enumerate($a);
$this->assertCount(2, $objects);
$this->assertSame($a, $objects[0]);
$this->assertSame($b, $objects[1]);
}
public function testEnumeratesObjectWithAggregatedObjectsInArray(): void
{
$a = new stdClass;
$b = new stdClass;
$a->b = [$b];
$objects = (new Enumerator)->enumerate($a);
$this->assertCount(2, $objects);
$this->assertSame($a, $objects[0]);
$this->assertSame($b, $objects[1]);
}
public function testEnumeratesObjectsWithCyclicReferences(): void
{
$a = new stdClass;
$b = new stdClass;
$a->b = $b;
$b->a = $a;
$objects = (new Enumerator)->enumerate([$a, $b]);
$this->assertCount(2, $objects);
$this->assertSame($a, $objects[0]);
$this->assertSame($b, $objects[1]);
}
public function testEnumeratesClassThatThrowsException(): void
{
$thrower = new ExceptionThrower;
$objects = (new Enumerator)->enumerate($thrower);
$this->assertSame($thrower, $objects[0]);
}
}
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