friendica/tests/Util/Intercept.php

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<?php
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/**
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* @copyright Copyright (C) 2010-2022, the Friendica project
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*
* @license GNU AGPL version 3 or any later version
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
*/
namespace Friendica\Test\Util;
use php_user_filter;
/**
* Output Interceptor for STDOUT to prevent outputing to the console
* Instead the $cache variable will get filled with the output
*
* @package Friendica\Test\Util
*/
class Intercept extends php_user_filter
{
/**
* @var string The cache which holds the current output of STDOUT
*/
public static $cache = '';
/** @noinspection PhpMissingParentCallCommonInspection */
public function filter($in, $out, &$consumed, $closing)
{
while ($bucket = stream_bucket_make_writeable($in)) {
self::$cache .= $bucket->data;
$consumed += $bucket->datalen;
stream_bucket_append($out, $bucket);
}
return PSFS_FEED_ME;
}
/**
* Registers the interceptor and prevents therefore the output to STDOUT
*/
public static function setUp() {
stream_filter_register("intercept", Intercept::class);
stream_filter_append(STDOUT, "intercept");
stream_filter_append(STDERR, "intercept");
}
/**
* Resets the cache
*/
public static function reset() {
self::$cache = '';
}
}