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<?php declare(strict_types=1);
/*
* This file is part of sebastian/comparator.
*
* (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 SebastianBergmann\Comparator;
use function is_float;
use function is_numeric;
/**
* Compares doubles for equality.
*/
class DoubleComparator extends NumericComparator
{
/**
* Smallest value available in PHP.
*
* @var float
*/
public const EPSILON = 0.0000000001;
/**
* Returns whether the comparator can compare two values.
*
* @param mixed $expected The first value to compare
* @param mixed $actual The second value to compare
*
* @return bool
*/
public function accepts($expected, $actual)
{
return (is_float($expected) || is_float($actual)) && is_numeric($expected) && is_numeric($actual);
}
/**
* Asserts that two values are equal.
*
* @param mixed $expected First value to compare
* @param mixed $actual Second value to compare
* @param float $delta Allowed numerical distance between two values to consider them equal
* @param bool $canonicalize Arrays are sorted before comparison when set to true
* @param bool $ignoreCase Case is ignored when set to true
*
* @throws ComparisonFailure
*/
public function assertEquals($expected, $actual, $delta = 0.0, $canonicalize = false, $ignoreCase = false)/*: void*/
{
if ($delta == 0) {
$delta = self::EPSILON;
}
parent::assertEquals($expected, $actual, $delta, $canonicalize, $ignoreCase);
}
}