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1 mjordaan 1 
<?php
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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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/**
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 * Constraint that checks if the file(name) that it is evaluated for exists.
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 *
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 * The file path to check is passed as $other in evaluate().
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 */
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class PHPUnit_Framework_Constraint_FileExists extends PHPUnit_Framework_Constraint
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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 $other Value or object to evaluate.
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     *
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     * @return bool
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     */
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    protected function matches($other)
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    {
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        return file_exists($other);
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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 $other Evaluated value or object.
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     *
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     * @return string
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     */
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    protected function failureDescription($other)
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    {
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        return sprintf(
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            'file "%s" exists',
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            $other
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        );
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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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     * @return string
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     */
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    public function toString()
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    {
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        return 'file exists';
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    }
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}