68 lines
1.9 KiB
PHP
68 lines
1.9 KiB
PHP
<?php declare(strict_types=1);
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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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use function abs;
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use function is_float;
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use function is_infinite;
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use function is_nan;
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use function is_numeric;
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use function is_string;
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use function sprintf;
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use SebastianBergmann\Exporter\Exporter;
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final class NumericComparator extends ScalarComparator
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{
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public function accepts(mixed $expected, mixed $actual): bool
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{
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// all numerical values, but not if both of them are strings
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return is_numeric($expected) && is_numeric($actual) &&
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!(is_string($expected) && is_string($actual));
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}
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/**
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* @throws ComparisonFailure
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*/
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public function assertEquals(mixed $expected, mixed $actual, float $delta = 0.0, bool $canonicalize = false, bool $ignoreCase = false): void
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{
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if ($this->isInfinite($actual) && $this->isInfinite($expected)) {
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return;
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}
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if (($this->isInfinite($actual) xor $this->isInfinite($expected)) ||
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($this->isNan($actual) || $this->isNan($expected)) ||
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abs($actual - $expected) > $delta) {
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$exporter = new Exporter;
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throw new ComparisonFailure(
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$expected,
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$actual,
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'',
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'',
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sprintf(
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'Failed asserting that %s matches expected %s.',
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$exporter->export($actual),
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$exporter->export($expected),
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),
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);
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}
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}
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private function isInfinite(mixed $value): bool
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{
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return is_float($value) && is_infinite($value);
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}
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private function isNan(mixed $value): bool
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{
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return is_float($value) && is_nan($value);
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}
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}
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