File "TestDataCollection.php"
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<?php declare(strict_types=1);
/*
* This file is part of PHPUnit.
*
* (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 PHPUnit\Event\TestData;
use function count;
use Countable;
use IteratorAggregate;
/**
* @template-implements IteratorAggregate<int, TestData>
*
* @no-named-arguments Parameter names are not covered by the backward compatibility promise for PHPUnit
*/
final class TestDataCollection implements Countable, IteratorAggregate
{
/**
* @psalm-var list<TestData>
*/
private readonly array $data;
private ?DataFromDataProvider $fromDataProvider = null;
/**
* @psalm-param list<TestData> $data
*
* @throws MoreThanOneDataSetFromDataProviderException
*/
public static function fromArray(array $data): self
{
return new self(...$data);
}
/**
* @throws MoreThanOneDataSetFromDataProviderException
*/
private function __construct(TestData ...$data)
{
$this->ensureNoMoreThanOneDataFromDataProvider($data);
$this->data = $data;
}
/**
* @psalm-return list<TestData>
*/
public function asArray(): array
{
return $this->data;
}
public function count(): int
{
return count($this->data);
}
/**
* @psalm-assert-if-true !null $this->fromDataProvider
*/
public function hasDataFromDataProvider(): bool
{
return $this->fromDataProvider !== null;
}
/**
* @throws NoDataSetFromDataProviderException
*/
public function dataFromDataProvider(): DataFromDataProvider
{
if (!$this->hasDataFromDataProvider()) {
throw new NoDataSetFromDataProviderException;
}
return $this->fromDataProvider;
}
public function getIterator(): TestDataCollectionIterator
{
return new TestDataCollectionIterator($this);
}
/**
* @psalm-param list<TestData> $data
*
* @throws MoreThanOneDataSetFromDataProviderException
*/
private function ensureNoMoreThanOneDataFromDataProvider(array $data): void
{
foreach ($data as $_data) {
if ($_data->isFromDataProvider()) {
if ($this->fromDataProvider !== null) {
throw new MoreThanOneDataSetFromDataProviderException;
}
$this->fromDataProvider = $_data;
}
}
}
}