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36 lines
885 B
36 lines
885 B
<?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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/**
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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 IsNull extends Constraint
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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 'is null';
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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 === null;
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}
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}
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