<?php
/*
* 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\Assert;
use PHPUnit\Framework\ExpectationFailedException;

class Attribute extends Composite
{
/**
* @var string
*/
protected $attributeName;

/**
* @param Constraint $constraint
* @param string $attributeName
*/
public function __construct(Constraint $constraint, $attributeName)
{
parent::__construct($constraint);

$this->attributeName = $attributeName;
}

/**
* 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 $other Value or object to evaluate.
* @param string $description Additional information about the test
* @param bool $returnResult Whether to return a result or throw an exception
*
* @return mixed
*
* @throws ExpectationFailedException
*/
public function evaluate($other, $description = '', $returnResult = false)
{
return parent::evaluate(
Assert::readAttribute(
$other,
$this->attributeName
),
$description,
$returnResult
);
}

/**
* Returns a string representation of the constraint.
*
* @return string
*/
public function toString()
{
return 'attribute "' . $this->attributeName . '" ' .
$this->innerConstraint->toString();
}

/**
* Returns the description of the failure
*
* The beginning of failure messages is "Failed asserting that" in most
* cases. This method should return the second part of that sentence.
*
* @param mixed $other Evaluated value or object.
*
* @return string
*/
protected function failureDescription($other)
{
return $this->toString();
}
}