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<?php declare(strict_types=1);
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/*
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 * This file is part of PHPUnit.
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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 PHPUnit\Framework\Constraint;
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use function get_class;
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use function sprintf;
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use PHPUnit\Util\Filter;
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use Throwable;
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/**
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 * @no-named-arguments Parameter names are not covered by the backward compatibility promise for PHPUnit
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 */
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final class Exception extends Constraint
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{
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    /**
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     * @var string
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     */
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    private $className;
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    public function __construct(string $className)
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    {
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        $this->className = $className;
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    }
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    /**
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     * Returns a string representation of the constraint.
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     */
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    public function toString(): string
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    {
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        return sprintf(
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            'exception of type "%s"',
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            $this->className
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        );
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    }
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    /**
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     * Evaluates the constraint for parameter $other. Returns true if the
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     * constraint is met, false otherwise.
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     *
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     * @param mixed $other value or object to evaluate
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     */
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    protected function matches($other): bool
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    {
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        return $other instanceof $this->className;
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    }
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    /**
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     * Returns the description of the failure.
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     *
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     * The beginning of failure messages is "Failed asserting that" in most
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     * cases. This method should return the second part of that sentence.
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     *
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     * @param mixed $other evaluated value or object
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     */
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    protected function failureDescription($other): string
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    {
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        if ($other !== null) {
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            $message = '';
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            if ($other instanceof Throwable) {
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                $message = '. Message was: "' . $other->getMessage() . '" at'
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                    . "\n" . Filter::getFilteredStacktrace($other);
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            }
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            return sprintf(
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                'exception of type "%s" matches expected exception "%s"%s',
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                get_class($other),
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                $this->className,
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                $message
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            );
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        }
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        return sprintf(
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            'exception of type "%s" is thrown',
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            $this->className
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        );
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    }
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}