maintenance/preprocessorFuzzTest.php

   1 <?php
   2
   3 require_once( dirname( __FILE__ ). '/../maintenance/commandLine.inc' );
   4
   5 $wgHooks['BeforeParserFetchTemplateAndtitle'][] = 'PPFuzzTester::templateHook';
   6
   7 class PPFuzzTester {
   8         var $hairs = array(
   9                 '[[', ']]', '{{', '{{', '}}', '}}', '{{{', '}}}',
  10                 '<', '>', '<nowiki', '<gallery', '</nowiki>', '</gallery>', '<nOwIkI>', '</NoWiKi>',
  11                 '<!--' , '-->',
  12                 "\n==", "==\n",
  13                 '|', '=', "\n", ' ', "\t", "\x7f",
  14                 '~~', '~~~', '~~~~', 'subst:',
  15                 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j',
  16                 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't',
  17
  18                 // extensions
  19                 //'<ref>', '</ref>', '<references/>',
  20         );
  21         var $minLength = 0;
  22         var $maxLength = 20;
  23         var $maxTemplates = 5;
  24         //var $outputTypes = array( 'OT_HTML', 'OT_WIKI', 'OT_PREPROCESS' );
  25         var $entryPoints = array( 'testSrvus', 'testPst', 'testPreprocess' );
  26         var $verbose = false;
  27         static $currentTest = false;
  28
  29         function execute() {
  30                 if ( !file_exists( 'results' ) ) {
  31                         mkdir( 'results' );
  32                 }
  33                 if ( !is_dir( 'results' ) ) {
  34                         echo "Unable to create 'results' directory\n";
  35                         exit( 1 );
  36                 }
  37                 $overallStart = microtime( true );
  38                 $reportInterval = 1000;
  39                 for ( $i = 1; true; $i++ ) {
  40                         $t = -microtime( true );
  41                         try {
  42                                 self::$currentTest = new PPFuzzTest( $this );
  43                                 self::$currentTest->execute();
  44                                 $passed = 'passed';
  45                         } catch ( MWException $e ) {
  46                                 $testReport = self::$currentTest->getReport();
  47                                 $exceptionReport = $e->getText();
  48                                 $hash = md5( $testReport );
  49                                 file_put_contents( "results/ppft-$hash.in", serialize( self::$currentTest ) );
  50                                 file_put_contents( "results/ppft-$hash.fail",
  51                                         "Input:\n$testReport\n\nException report:\n$exceptionReport\n" );
  52                                 print "Test $hash failed\n";
  53                                 $passed = 'failed';
  54                         }
  55                         $t += microtime( true );
  56
  57                         if ( $this->verbose ) {
  58                                 printf( "Test $passed in %.3f seconds\n", $t );
  59                                 print self::$currentTest->getReport();
  60                         }
  61
  62                         $reportMetric = ( microtime( true ) - $overallStart ) / $i * $reportInterval;
  63                         if ( $reportMetric > 25 ) {
  64                                 if ( substr( $reportInterval, 0, 1 ) === '1' ) {
  65                                         $reportInterval /= 2;
  66                                 } else {
  67                                         $reportInterval /= 5;
  68                                 }
  69                         } elseif ( $reportMetric < 4 ) {
  70                                 if ( substr( $reportInterval, 0, 1 ) === '1' ) {
  71                                         $reportInterval *= 5;
  72                                 } else {
  73                                         $reportInterval *= 2;
  74                                 }
  75                         }
  76                         if ( $i % $reportInterval == 0 ) {
  77                                 print "$i tests done\n";
  78                                 /*
  79                                 $testReport = self::$currentTest->getReport();
  80                                 $filename = 'results/ppft-' . md5( $testReport ) . '.pass';
  81                                 file_put_contents( $filename, "Input:\n$testReport\n" );*/
  82                         }
  83                 }
  84                 wfLogProfilingData();
  85         }
  86
  87         function makeInputText( $max = false ) {
  88                 if ( $max === false ) {
  89                         $max = $this->maxLength;
  90                 }
  91                 $length = mt_rand( $this->minLength, $max );
  92                 $s = '';
  93                 for ( $i = 0; $i < $length; $i++ ) {
  94                         $hairIndex = mt_rand( 0, count( $this->hairs ) - 1 );
  95                         $s .= $this->hairs[$hairIndex];
  96                 }
  97                 // Send through the UTF-8 normaliser
  98                 // This resolves a few differences between the old preprocessor and the
  99                 // XML-based one, which doesn't like illegals and converts line endings.
 100                 // It's done by the MW UI, so it's a reasonably legitimate thing to do.
 101                 $s = UtfNormal::cleanUp( $s );
 102                 return $s;
 103         }
 104
 105         function makeTitle() {
 106                 return Title::newFromText( mt_rand( 0, 1000000 ), mt_rand( 0, 10 ) );
 107         }
 108
 109         /*
 110         function pickOutputType() {
 111                 $count = count( $this->outputTypes );
 112                 return $this->outputTypes[ mt_rand( 0, $count - 1 ) ];
 113         }*/
 114
 115         function pickEntryPoint() {
 116                 $count = count( $this->entryPoints );
 117                 return $this->entryPoints[ mt_rand( 0, $count - 1 ) ];
 118         }
 119 }
 120
 121 class PPFuzzTest {
 122         var $templates, $mainText, $title, $entryPoint, $output;
 123
 124         function __construct( $tester ) {
 125                 global $wgMaxSigChars;
 126                 $this->parent = $tester;
 127                 $this->mainText = $tester->makeInputText();
 128                 $this->title = $tester->makeTitle();
 129                 //$this->outputType = $tester->pickOutputType();
 130                 $this->entryPoint = $tester->pickEntryPoint();
 131                 $this->nickname = $tester->makeInputText( $wgMaxSigChars + 10);
 132                 $this->fancySig = (bool)mt_rand( 0, 1 );
 133                 $this->templates = array();
 134         }
 135
 136         function templateHook( $title ) {
 137                 $titleText = $title->getPrefixedDBkey();
 138
 139                 if ( !isset( $this->templates[$titleText] ) ) {
 140                         $finalTitle = $title;
 141                         if ( count( $this->templates ) >= $this->parent->maxTemplates ) {
 142                                 // Too many templates
 143                                 $text = false;
 144                         } else {
 145                                 if ( !mt_rand( 0, 1 ) ) {
 146                                         // Redirect
 147                                         $finalTitle = $this->parent->makeTitle();
 148                                 }
 149                                 if ( !mt_rand( 0, 5 ) ) {
 150                                         // Doesn't exist
 151                                         $text = false;
 152                                 } else {
 153                                         $text = $this->parent->makeInputText();
 154                                 }
 155                         }
 156                         $this->templates[$titleText] = array(
 157                                 'text' => $text,
 158                                 'finalTitle' => $finalTitle );
 159                 }
 160                 return $this->templates[$titleText];
 161         }
 162
 163         function execute() {
 164                 global $wgParser, $wgUser;
 165
 166                 $wgUser = new PPFuzzUser;
 167                 $wgUser->mName = 'Fuzz';
 168                 $wgUser->mFrom = 'name';
 169                 $wgUser->ppfz_test = $this;
 170
 171                 $options = new ParserOptions;
 172                 $options->setTemplateCallback( array( $this, 'templateHook' ) );
 173                 $options->setTimestamp( wfTimestampNow() );
 174                 $this->output = call_user_func( array( $wgParser, $this->entryPoint ), $this->mainText, $this->title->getPrefixedText(), $options );
 175                 return $this->output;
 176         }
 177
 178         function getReport() {
 179                 $s = "Title: " . $this->title->getPrefixedDBkey() . "\n" .
 180 //                      "Output type: {$this->outputType}\n" .
 181                         "Entry point: {$this->entryPoint}\n" .
 182                         "User: " . ( $this->fancySig ? 'fancy' : 'no-fancy' ) . ' ' . var_export( $this->nickname, true ) . "\n" .
 183                         "Main text: " . var_export( $this->mainText, true ) . "\n";
 184                 foreach ( $this->templates as $titleText => $template ) {
 185                         $finalTitle = $template['finalTitle'];
 186                         if ( $finalTitle != $titleText ) {
 187                                 $s .= "[[$titleText]] -> [[$finalTitle]]: " . var_export( $template['text'], true ) . "\n";
 188                         } else {
 189                                 $s .= "[[$titleText]]: " . var_export( $template['text'], true ) . "\n";
 190                         }
 191                 }
 192                 $s .= "Output: " . var_export( $this->output, true ) . "\n";
 193                 return $s;
 194         }
 195 }
 196
 197 class PPFuzzUser extends User {
 198         var $ppfz_test;
 199
 200         function load() {
 201                 if ( $this->mDataLoaded ) {
 202                         return;
 203                 }
 204                 $this->mDataLoaded = true;
 205                 $this->loadDefaults( $this->mName );
 206         }
 207
 208         function getOption( $option, $defaultOverride = '' ) {
 209                 if ( $option === 'fancysig' ) {
 210                         return $this->ppfz_test->fancySig;
 211                 } elseif ( $option === 'nickname' ) {
 212                         return $this->ppfz_test->nickname;
 213                 } else {
 214                         return parent::getOption( $option, $defaultOverride );
 215                 }
 216         }
 217 }
 218
 219 ini_set( 'memory_limit', '50M' );
 220 if ( isset( $args[0] ) ) {
 221         $testText = file_get_contents( $args[0] );
 222         if ( !$testText ) {
 223                 print "File not found\n";
 224                 exit( 1 );
 225         }
 226         $test = unserialize( $testText );
 227         $result = $test->execute();
 228         print "Test passed.\n";
 229 } else {
 230         $tester = new PPFuzzTester;
 231         $tester->verbose = isset( $options['verbose'] );
 232         $tester->execute();
 233 }