IsTraversableWithSize.php
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IsTraversableWithSize.php
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	<?php
	namespace Hamcrest\Collection;

	/*
	Copyright (c) 2009 hamcrest.org
	*/
	use Hamcrest\FeatureMatcher;
	use Hamcrest\Matcher;
	use Hamcrest\Util;

	/**
	* Matches if traversable size satisfies a nested matcher.
	*/
	class IsTraversableWithSize extends FeatureMatcher
	{

	public function __construct(Matcher $sizeMatcher)
	{
	parent::__construct(
	self::TYPE_OBJECT,
	'Traversable',
	$sizeMatcher,
	'a traversable with size',
	'traversable size'
	);
	}

	protected function featureValueOf($actual)
	{
	$size = 0;
	foreach ($actual as $value) {
	$size++;
	}

	return $size;
	}

	/**
	* Does traversable size satisfy a given matcher?
	*
	* @factory
	*/
	public static function traversableWithSize($size)
	{
	return new self(Util::wrapValueWithIsEqual($size));
	}
	}