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Diffstat (limited to 'vendor/sebastian/comparator/src/NumericComparator.php')
-rw-r--r-- | vendor/sebastian/comparator/src/NumericComparator.php | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/vendor/sebastian/comparator/src/NumericComparator.php b/vendor/sebastian/comparator/src/NumericComparator.php new file mode 100644 index 000000000..12e6721d6 --- /dev/null +++ b/vendor/sebastian/comparator/src/NumericComparator.php @@ -0,0 +1,86 @@ +<?php declare(strict_types=1); +/* + * This file is part of sebastian/comparator. + * + * (c) Sebastian Bergmann <[email protected]> + * + * For the full copyright and license information, please view the LICENSE + * file that was distributed with this source code. + */ +namespace SebastianBergmann\Comparator; + +use function abs; +use function is_float; +use function is_infinite; +use function is_nan; +use function is_numeric; +use function is_string; +use function sprintf; + +/** + * Compares numerical values for equality. + */ +class NumericComparator extends ScalarComparator +{ + /** + * 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, $actual) + { + // all numerical values, but not if one of them is a double + // or both of them are strings + return is_numeric($expected) && is_numeric($actual) && + !(is_float($expected) || is_float($actual)) && + !(is_string($expected) && is_string($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, $ignoreCase = false)/*: void*/ + { + if ($this->isInfinite($actual) && $this->isInfinite($expected)) { + return; + } + + if (($this->isInfinite($actual) xor $this->isInfinite($expected)) || + ($this->isNan($actual) || $this->isNan($expected)) || + abs($actual - $expected) > $delta) { + throw new ComparisonFailure( + $expected, + $actual, + '', + '', + false, + sprintf( + 'Failed asserting that %s matches expected %s.', + $this->exporter->export($actual), + $this->exporter->export($expected) + ) + ); + } + } + + private function isInfinite($value): bool + { + return is_float($value) && is_infinite($value); + } + + private function isNan($value): bool + { + return is_float($value) && is_nan($value); + } +} |