Viewing file:  TraversableContainsOnly.php (2.22 KB) -rw-r--r--
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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\Framework\Constraint;
use PHPUnit\Framework\ExpectationFailedException;
use Traversable;
/**
* @no-named-arguments Parameter names are not covered by the backward compatibility promise for PHPUnit
*/
final class TraversableContainsOnly extends Constraint
{
/**
* @var Constraint
*/
private $constraint;
/**
* @var string
*/
private $type;
/**
* @throws \PHPUnit\Framework\Exception
*/
public function __construct(string $type, bool $isNativeType = true)
{
if ($isNativeType) {
$this->constraint = new IsType($type);
} else {
$this->constraint = new IsInstanceOf(
$type
);
}
$this->type = $type;
}
/**
* Evaluates the constraint for parameter $other.
*
* If $returnResult is set to false (the default), an exception is thrown
* in case of a failure. null is returned otherwise.
*
* If $returnResult is true, the result of the evaluation is returned as
* a boolean value instead: true in case of success, false in case of a
* failure.
*
* @param mixed|Traversable $other
*
* @throws \SebastianBergmann\RecursionContext\InvalidArgumentException
* @throws ExpectationFailedException
*/
public function evaluate($other, string $description = '', bool $returnResult = false): ?bool
{
$success = true;
foreach ($other as $item) {
if (!$this->constraint->evaluate($item, '', true)) {
$success = false;
break;
}
}
if ($returnResult) {
return $success;
}
if (!$success) {
$this->fail($other, $description);
}
return null;
}
/**
* Returns a string representation of the constraint.
*/
public function toString(): string
{
return 'contains only values of type "' . $this->type . '"';
}
}
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