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57 lines
1.6 KiB
57 lines
1.6 KiB
<?php
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/*
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* This file is part of sebastian/comparator.
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*
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* (c) Sebastian Bergmann <sebastian@phpunit.de>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace SebastianBergmann\Comparator;
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/**
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* Compares doubles for equality.
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*/
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class DoubleComparator extends NumericComparator
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{
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/**
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* Smallest value available in PHP.
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*
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* @var float
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*/
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const EPSILON = 0.0000000001;
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/**
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* Returns whether the comparator can compare two values.
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*
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* @param mixed $expected The first value to compare
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* @param mixed $actual The second value to compare
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*
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* @return bool
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*/
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public function accepts($expected, $actual)
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{
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return (\is_float($expected) || \is_float($actual)) && \is_numeric($expected) && \is_numeric($actual);
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}
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/**
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* Asserts that two values are equal.
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*
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* @param mixed $expected First value to compare
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* @param mixed $actual Second value to compare
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* @param float $delta Allowed numerical distance between two values to consider them equal
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* @param bool $canonicalize Arrays are sorted before comparison when set to true
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* @param bool $ignoreCase Case is ignored when set to true
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*
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* @throws ComparisonFailure
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*/
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public function assertEquals($expected, $actual, $delta = 0.0, $canonicalize = false, $ignoreCase = false)
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{
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if ($delta == 0) {
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$delta = self::EPSILON;
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}
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parent::assertEquals($expected, $actual, $delta, $canonicalize, $ignoreCase);
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}
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}
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