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<?php
namespace Hamcrest\Text;
/*
Copyright (c) 2009 hamcrest.org
*/
use Hamcrest\Description;
use Hamcrest\TypeSafeMatcher;
/**
* Tests if a string is equal to another string, ignoring any changes in
* whitespace.
*/
class IsEqualIgnoringWhiteSpace extends TypeSafeMatcher
{
private $_string;
public function __construct($string)
{
parent::__construct(self::TYPE_STRING);
$this->_string = $string;
}
protected function matchesSafely($item)
{
return (strtolower($this->_stripSpace($item))
=== strtolower($this->_stripSpace($this->_string)));
}
protected function describeMismatchSafely($item, Description $mismatchDescription)
{
$mismatchDescription->appendText('was ')->appendText($item);
}
public function describeTo(Description $description)
{
$description->appendText('equalToIgnoringWhiteSpace(')
->appendValue($this->_string)
->appendText(')')
;
}
/**
* Matches if value is a string equal to $string, regardless of whitespace.
*
* @factory
*/
public static function equalToIgnoringWhiteSpace($string)
{
return new self($string);
}
// -- Private Methods
private function _stripSpace($string)
{
$parts = preg_split("/[\r\n\t ]+/", $string);
foreach ($parts as $i => $part) {
$parts[$i] = trim($part, " \r\n\t");
}
return trim(implode(' ', $parts), " \r\n\t");
}
}
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