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Edit File: JsonMatchesErrorMessageProvider.php

<?php declare(strict_types=1);
/*
 * This file is part of PHPUnit.
 *
 * (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 PHPUnit\Framework\Constraint;

use const JSON_ERROR_CTRL_CHAR;
use const JSON_ERROR_DEPTH;
use const JSON_ERROR_NONE;
use const JSON_ERROR_STATE_MISMATCH;
use const JSON_ERROR_SYNTAX;
use const JSON_ERROR_UTF8;
use function strtolower;

/**
 * Provides human readable messages for each JSON error.
 */
final class JsonMatchesErrorMessageProvider
{
    /**
     * Translates JSON error to a human readable string.
     */
    public static function determineJsonError(string $error, string $prefix = ''): ?string
    {
        switch ($error) {
            case JSON_ERROR_NONE:
                return null;

case JSON_ERROR_DEPTH:
                return $prefix . 'Maximum stack depth exceeded';

case JSON_ERROR_STATE_MISMATCH:
                return $prefix . 'Underflow or the modes mismatch';

case JSON_ERROR_CTRL_CHAR:
                return $prefix . 'Unexpected control character found';

case JSON_ERROR_SYNTAX:
                return $prefix . 'Syntax error, malformed JSON';

case JSON_ERROR_UTF8:
                return $prefix . 'Malformed UTF-8 characters, possibly incorrectly encoded';

default:
                return $prefix . 'Unknown error';
        }
    }

/**
     * Translates a given type to a human readable message prefix.
     */
    public static function translateTypeToPrefix(string $type): string
    {
        switch (strtolower($type)) {
            case 'expected':
                $prefix = 'Expected value JSON decode error - ';

break;

case 'actual':
                $prefix = 'Actual value JSON decode error - ';

break;

default:
                $prefix = '';

break;
        }

return $prefix;
    }
}

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