tests/Util/Intercept.php

   1 <?php
   2
   3 namespace Friendica\Test\Util;
   4
   5 use php_user_filter;
   6
   7 /**
   8  * Output Interceptor for STDOUT to prevent outputing to the console
   9  * Instead the $cache variable will get filled with the output
  10  *
  11  * @package Friendica\Test\Util
  12  */
  13 class Intercept extends php_user_filter
  14 {
  15         /**
  16          * @var string The cache which holds the current output of STDOUT
  17          */
  18         public static $cache = '';
  19
  20         public function filter($in, $out, &$consumed, $closing)
  21         {
  22                 while ($bucket = stream_bucket_make_writeable($in)) {
  23                         self::$cache .= $bucket->data;
  24                         $consumed += $bucket->datalen;
  25                         stream_bucket_append($out, $bucket);
  26                 }
  27                 return PSFS_FEED_ME;
  28         }
  29
  30         /**
  31          * Registers the interceptor and prevents therefore the output to STDOUT
  32          */
  33         public static function setUp() {
  34                 stream_filter_register("intercept", Intercept::class);
  35                 stream_filter_append(STDOUT, "intercept");
  36                 stream_filter_append(STDERR, "intercept");
  37         }
  38
  39         /**
  40          * Resets the cache
  41          */
  42         public static function reset() {
  43                 self::$cache = '';
  44         }
  45 }