MediaWiki 1.30.2

[autoinstallsdev/mediawiki.git] / includes / parser / ParserDiffTest.php

diff --git a/includes/parser/ParserDiffTest.php b/includes/parser/ParserDiffTest.php
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+++ b/includes/parser/ParserDiffTest.php
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+<?php
+/**
+ * Fake parser that output the difference of two different parsers
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ * http://www.gnu.org/copyleft/gpl.html
+ *
+ * @file
+ * @ingroup Parser
+ */
+
+/**
+ * @ingroup Parser
+ */
+class ParserDiffTest {
+       public $parsers;
+       public $conf;
+       public $shortOutput = false;
+
+       public function __construct( $conf ) {
+               if ( !isset( $conf['parsers'] ) ) {
+                       throw new MWException( __METHOD__ . ': no parsers specified' );
+               }
+               $this->conf = $conf;
+       }
+
+       public function init() {
+               if ( !is_null( $this->parsers ) ) {
+                       return;
+               }
+
+               if ( isset( $this->conf['shortOutput'] ) ) {
+                       $this->shortOutput = $this->conf['shortOutput'];
+               }
+
+               foreach ( $this->conf['parsers'] as $i => $parserConf ) {
+                       if ( !is_array( $parserConf ) ) {
+                               $class = $parserConf;
+                               $parserConf = [ 'class' => $parserConf ];
+                       } else {
+                               $class = $parserConf['class'];
+                       }
+                       $this->parsers[$i] = new $class( $parserConf );
+               }
+       }
+
+       public function __call( $name, $args ) {
+               $this->init();
+               $results = [];
+               $mismatch = false;
+               $lastResult = null;
+               $first = true;
+               foreach ( $this->parsers as $i => $parser ) {
+                       $currentResult = call_user_func_array( [ &$this->parsers[$i], $name ], $args );
+                       if ( $first ) {
+                               $first = false;
+                       } else {
+                               if ( is_object( $lastResult ) ) {
+                                       if ( $lastResult != $currentResult ) {
+                                               $mismatch = true;
+                                       }
+                               } else {
+                                       if ( $lastResult !== $currentResult ) {
+                                               $mismatch = true;
+                                       }
+                               }
+                       }
+                       $results[$i] = $currentResult;
+                       $lastResult = $currentResult;
+               }
+               if ( $mismatch ) {
+                       if ( count( $results ) == 2 ) {
+                               $resultsList = [];
+                               foreach ( $this->parsers as $i => $parser ) {
+                                       $resultsList[] = var_export( $results[$i], true );
+                               }
+                               $diff = wfDiff( $resultsList[0], $resultsList[1] );
+                       } else {
+                               $diff = '[too many parsers]';
+                       }
+                       $msg = "ParserDiffTest: results mismatch on call to $name\n";
+                       if ( !$this->shortOutput ) {
+                               $msg .= 'Arguments: ' . $this->formatArray( $args ) . "\n";
+                       }
+                       $msg .= 'Results: ' . $this->formatArray( $results ) . "\n" .
+                               "Diff: $diff\n";
+                       throw new MWException( $msg );
+               }
+               return $lastResult;
+       }
+
+       public function formatArray( $array ) {
+               if ( $this->shortOutput ) {
+                       foreach ( $array as $key => $value ) {
+                               if ( $value instanceof ParserOutput ) {
+                                       $array[$key] = "ParserOutput: {$value->getText()}";
+                               }
+                       }
+               }
+               return var_export( $array, true );
+       }
+
+       public function setFunctionHook( $id, $callback, $flags = 0 ) {
+               $this->init();
+               foreach ( $this->parsers as $parser ) {
+                       $parser->setFunctionHook( $id, $callback, $flags );
+               }
+       }
+}