Viewing file:  ScalarComparator.php (2.76 KB) -rw-r--r--
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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_bool;
use function is_object;
use function is_scalar;
use function is_string;
use function mb_strtolower;
use function method_exists;
use function sprintf;
use SebastianBergmann\Exporter\Exporter;
/**
* Compares scalar or NULL values for equality.
*/
class ScalarComparator extends Comparator
{
public function accepts(mixed $expected, mixed $actual): bool
{
return ((is_scalar($expected) xor null === $expected) &&
(is_scalar($actual) xor null === $actual)) ||
// allow comparison between strings and objects featuring __toString()
(is_string($expected) && is_object($actual) && method_exists($actual, '__toString')) ||
(is_object($expected) && method_exists($expected, '__toString') && is_string($actual));
}
/**
* @throws ComparisonFailure
*/
public function assertEquals(mixed $expected, mixed $actual, float $delta = 0.0, bool $canonicalize = false, bool $ignoreCase = false): void
{
$expectedToCompare = $expected;
$actualToCompare = $actual;
$exporter = new Exporter;
// always compare as strings to avoid strange behaviour
// otherwise 0 == 'Foobar'
if ((is_string($expected) && !is_bool($actual)) || (is_string($actual) && !is_bool($expected))) {
$expectedToCompare = (string) $expectedToCompare;
$actualToCompare = (string) $actualToCompare;
if ($ignoreCase) {
$expectedToCompare = mb_strtolower($expectedToCompare, 'UTF-8');
$actualToCompare = mb_strtolower($actualToCompare, 'UTF-8');
}
}
if ($expectedToCompare !== $actualToCompare && is_string($expected) && is_string($actual)) {
throw new ComparisonFailure(
$expected,
$actual,
$exporter->export($expected),
$exporter->export($actual),
'Failed asserting that two strings are equal.'
);
}
if ($expectedToCompare != $actualToCompare) {
throw new ComparisonFailure(
$expected,
$actual,
// no diff is required
'',
'',
sprintf(
'Failed asserting that %s matches expected %s.',
$exporter->export($actual),
$exporter->export($expected)
)
);
}
}
}
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