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OrderingComparison.php
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OrderingComparison.php
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<?php
namespace Hamcrest\Number;
/*
Copyright (c) 2009 hamcrest.org
*/
use Hamcrest\Description;
use Hamcrest\TypeSafeMatcher;
class OrderingComparison extends TypeSafeMatcher
{
private $_value;
private $_minCompare;
private $_maxCompare;
public function __construct($value, $minCompare, $maxCompare)
{
parent::__construct(self::TYPE_NUMERIC);
$this->_value = $value;
$this->_minCompare = $minCompare;
$this->_maxCompare = $maxCompare;
}
protected function matchesSafely($other)
{
$compare = $this->_compare($this->_value, $other);
return ($this->_minCompare <= $compare) && ($compare <= $this->_maxCompare);
}
protected function describeMismatchSafely($item, Description $mismatchDescription)
{
$mismatchDescription
->appendValue($item)->appendText(' was ')
->appendText($this->_comparison($this->_compare($this->_value, $item)))
->appendText(' ')->appendValue($this->_value)
;
}
public function describeTo(Description $description)
{
$description->appendText('a value ')
->appendText($this->_comparison($this->_minCompare))
;
if ($this->_minCompare != $this->_maxCompare) {
$description->appendText(' or ')
->appendText($this->_comparison($this->_maxCompare))
;
}
$description->appendText(' ')->appendValue($this->_value);
}
/**
* The value is not > $value, nor < $value.
*
* @factory
*/
public static function comparesEqualTo($value)
{
return new self($value, 0, 0);
}
/**
* The value is > $value.
*
* @factory
*/
public static function greaterThan($value)
{
return new self($value, -1, -1);
}
/**
* The value is >= $value.
*
* @factory atLeast
*/
public static function greaterThanOrEqualTo($value)
{
return new self($value, -1, 0);
}
/**
* The value is < $value.
*
* @factory
*/
public static function lessThan($value)
{
return new self($value, 1, 1);
}
/**
* The value is <= $value.
*
* @factory atMost
*/
public static function lessThanOrEqualTo($value)
{
return new self($value, 0, 1);
}
// -- Private Methods
private function _compare($left, $right)
{
$a = $left;
$b = $right;
if ($a < $b) {
return -1;
} elseif ($a == $b) {
return 0;
} else {
return 1;
}
}
private function _comparison($compare)
{
if ($compare > 0) {
return 'less than';
} elseif ($compare == 0) {
return 'equal to';
} else {
return 'greater than';
}
}
}

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Sat, May 16, 18:42 (5 h, 33 m)
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OrderingComparison.php (2 KB)

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