tests/phpunit/includes/api/ApiComparePagesTest.php

   1 <?php
   2
   3 /**
   4  * @group API
   5  * @group Database
   6  * @group medium
   7  * @covers ApiComparePages
   8  */
   9 class ApiComparePagesTest extends ApiTestCase {
  10
  11         protected static $repl = [];
  12
  13         protected function addPage( $page, $text, $model = CONTENT_MODEL_WIKITEXT ) {
  14                 $title = Title::newFromText( 'ApiComparePagesTest ' . $page );
  15                 $content = ContentHandler::makeContent( $text, $title, $model );
  16
  17                 $page = WikiPage::factory( $title );
  18                 $user = static::getTestSysop()->getUser();
  19                 $status = $page->doEditContent(
  20                         $content, 'Test for ApiComparePagesTest: ' . $text, 0, false, $user
  21                 );
  22                 if ( !$status->isOK() ) {
  23                         $this->fail( "Failed to create $title: " . $status->getWikiText( false, false, 'en' ) );
  24                 }
  25                 return $status->value['revision']->getId();
  26         }
  27
  28         public function addDBDataOnce() {
  29                 $user = static::getTestSysop()->getUser();
  30                 self::$repl['creator'] = $user->getName();
  31                 self::$repl['creatorid'] = $user->getId();
  32
  33                 self::$repl['revA1'] = $this->addPage( 'A', 'A 1' );
  34                 self::$repl['revA2'] = $this->addPage( 'A', 'A 2' );
  35                 self::$repl['revA3'] = $this->addPage( 'A', 'A 3' );
  36                 self::$repl['revA4'] = $this->addPage( 'A', 'A 4' );
  37                 self::$repl['pageA'] = Title::newFromText( 'ApiComparePagesTest A' )->getArticleID();
  38
  39                 self::$repl['revB1'] = $this->addPage( 'B', 'B 1' );
  40                 self::$repl['revB2'] = $this->addPage( 'B', 'B 2' );
  41                 self::$repl['revB3'] = $this->addPage( 'B', 'B 3' );
  42                 self::$repl['revB4'] = $this->addPage( 'B', 'B 4' );
  43                 self::$repl['pageB'] = Title::newFromText( 'ApiComparePagesTest B' )->getArticleID();
  44
  45                 self::$repl['revC1'] = $this->addPage( 'C', 'C 1' );
  46                 self::$repl['revC2'] = $this->addPage( 'C', 'C 2' );
  47                 self::$repl['revC3'] = $this->addPage( 'C', 'C 3' );
  48                 self::$repl['pageC'] = Title::newFromText( 'ApiComparePagesTest C' )->getArticleID();
  49
  50                 $id = $this->addPage( 'D', 'D 1' );
  51                 self::$repl['pageD'] = Title::newFromText( 'ApiComparePagesTest D' )->getArticleID();
  52                 wfGetDB( DB_MASTER )->delete( 'revision', [ 'rev_id' => $id ] );
  53
  54                 self::$repl['revE1'] = $this->addPage( 'E', 'E 1' );
  55                 self::$repl['revE2'] = $this->addPage( 'E', 'E 2' );
  56                 self::$repl['revE3'] = $this->addPage( 'E', 'E 3' );
  57                 self::$repl['revE4'] = $this->addPage( 'E', 'E 4' );
  58                 self::$repl['pageE'] = Title::newFromText( 'ApiComparePagesTest E' )->getArticleID();
  59                 wfGetDB( DB_MASTER )->update(
  60                         'page', [ 'page_latest' => 0 ], [ 'page_id' => self::$repl['pageE'] ]
  61                 );
  62
  63                 self::$repl['revF1'] = $this->addPage( 'F', "== Section 1 ==\nF 1.1\n\n== Section 2 ==\nF 1.2" );
  64                 self::$repl['pageF'] = Title::newFromText( 'ApiComparePagesTest F' )->getArticleID();
  65
  66                 self::$repl['revG1'] = $this->addPage( 'G', "== Section 1 ==\nG 1.1", CONTENT_MODEL_TEXT );
  67                 self::$repl['pageG'] = Title::newFromText( 'ApiComparePagesTest G' )->getArticleID();
  68
  69                 WikiPage::factory( Title::newFromText( 'ApiComparePagesTest C' ) )
  70                         ->doDeleteArticleReal( 'Test for ApiComparePagesTest' );
  71
  72                 RevisionDeleter::createList(
  73                         'revision',
  74                         RequestContext::getMain(),
  75                         Title::newFromText( 'ApiComparePagesTest B' ),
  76                         [ self::$repl['revB2'] ]
  77                 )->setVisibility( [
  78                         'value' => [
  79                                 Revision::DELETED_TEXT => 1,
  80                                 Revision::DELETED_USER => 1,
  81                                 Revision::DELETED_COMMENT => 1,
  82                         ],
  83                         'comment' => 'Test for ApiComparePages',
  84                 ] );
  85
  86                 RevisionDeleter::createList(
  87                         'revision',
  88                         RequestContext::getMain(),
  89                         Title::newFromText( 'ApiComparePagesTest B' ),
  90                         [ self::$repl['revB3'] ]
  91                 )->setVisibility( [
  92                         'value' => [
  93                                 Revision::DELETED_USER => 1,
  94                                 Revision::DELETED_COMMENT => 1,
  95                                 Revision::DELETED_RESTRICTED => 1,
  96                         ],
  97                         'comment' => 'Test for ApiComparePages',
  98                 ] );
  99
 100                 Title::clearCaches(); // Otherwise it has the wrong latest revision for some reason
 101         }
 102
 103         protected function doReplacements( &$value ) {
 104                 if ( is_string( $value ) ) {
 105                         if ( preg_match( '/^{{REPL:(.+?)}}$/', $value, $m ) ) {
 106                                 $value = self::$repl[$m[1]];
 107                         } else {
 108                                 $value = preg_replace_callback( '/{{REPL:(.+?)}}/', function ( $m ) {
 109                                         return self::$repl[$m[1]] ?? $m[0];
 110                                 }, $value );
 111                         }
 112                 } elseif ( is_array( $value ) || is_object( $value ) ) {
 113                         foreach ( $value as &$v ) {
 114                                 $this->doReplacements( $v );
 115                         }
 116                         unset( $v );
 117                 }
 118         }
 119
 120         /**
 121          * @dataProvider provideDiff
 122          */
 123         public function testDiff( $params, $expect, $exceptionCode = false, $sysop = false ) {
 124                 $this->setMwGlobals( [ 'wgDiffEngine' => 'php' ] );
 125
 126                 $this->doReplacements( $params );
 127
 128                 $params += [
 129                         'action' => 'compare',
 130                         'errorformat' => 'none',
 131                 ];
 132
 133                 $user = $sysop
 134                         ? static::getTestSysop()->getUser()
 135                         : static::getTestUser()->getUser();
 136                 if ( $exceptionCode ) {
 137                         try {
 138                                 $this->doApiRequest( $params, null, false, $user );
 139                                 $this->fail( 'Expected exception not thrown' );
 140                         } catch ( ApiUsageException $ex ) {
 141                                 $this->assertTrue( $this->apiExceptionHasCode( $ex, $exceptionCode ),
 142                                         "Exception with code $exceptionCode" );
 143                         }
 144                 } else {
 145                         $apiResult = $this->doApiRequest( $params, null, false, $user );
 146                         $apiResult = $apiResult[0];
 147                         $this->doReplacements( $expect );
 148                         $this->assertEquals( $expect, $apiResult );
 149                 }
 150         }
 151
 152         private static function makeDeprecationWarnings( ...$params ) {
 153                 $warn = [];
 154                 foreach ( $params as $p ) {
 155                         $warn[] = [
 156                                 'code' => 'deprecation',
 157                                 'data' => [ 'feature' => "action=compare&{$p}" ],
 158                                 'module' => 'compare',
 159                         ];
 160                         if ( count( $warn ) === 1 ) {
 161                                 $warn[] = [
 162                                         'code' => 'deprecation-help',
 163                                         'module' => 'main',
 164                                 ];
 165                         }
 166                 }
 167
 168                 return $warn;
 169         }
 170
 171         public static function provideDiff() {
 172                 // phpcs:disable Generic.Files.LineLength.TooLong
 173                 return [
 174                         'Basic diff, titles' => [
 175                                 [
 176                                         'fromtitle' => 'ApiComparePagesTest A',
 177                                         'totitle' => 'ApiComparePagesTest B',
 178                                 ],
 179                                 [
 180                                         'compare' => [
 181                                                 'fromid' => '{{REPL:pageA}}',
 182                                                 'fromrevid' => '{{REPL:revA4}}',
 183                                                 'fromns' => 0,
 184                                                 'fromtitle' => 'ApiComparePagesTest A',
 185                                                 'toid' => '{{REPL:pageB}}',
 186                                                 'torevid' => '{{REPL:revB4}}',
 187                                                 'tons' => 0,
 188                                                 'totitle' => 'ApiComparePagesTest B',
 189                                                 'body' => '<tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l1" >Line 1:</td>' . "\n"
 190                                                         . '<td colspan="2" class="diff-lineno">Line 1:</td></tr>' . "\n"
 191                                                         . '<tr><td class=\'diff-marker\'>−</td><td class=\'diff-deletedline\'><div><del class="diffchange diffchange-inline">A </del>4</div></td><td class=\'diff-marker\'>+</td><td class=\'diff-addedline\'><div><ins class="diffchange diffchange-inline">B </ins>4</div></td></tr>' . "\n",
 192                                         ]
 193                                 ],
 194                         ],
 195                         'Basic diff, page IDs' => [
 196                                 [
 197                                         'fromid' => '{{REPL:pageA}}',
 198                                         'toid' => '{{REPL:pageB}}',
 199                                 ],
 200                                 [
 201                                         'compare' => [
 202                                                 'fromid' => '{{REPL:pageA}}',
 203                                                 'fromrevid' => '{{REPL:revA4}}',
 204                                                 'fromns' => 0,
 205                                                 'fromtitle' => 'ApiComparePagesTest A',
 206                                                 'toid' => '{{REPL:pageB}}',
 207                                                 'torevid' => '{{REPL:revB4}}',
 208                                                 'tons' => 0,
 209                                                 'totitle' => 'ApiComparePagesTest B',
 210                                                 'body' => '<tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l1" >Line 1:</td>' . "\n"
 211                                                         . '<td colspan="2" class="diff-lineno">Line 1:</td></tr>' . "\n"
 212                                                         . '<tr><td class=\'diff-marker\'>−</td><td class=\'diff-deletedline\'><div><del class="diffchange diffchange-inline">A </del>4</div></td><td class=\'diff-marker\'>+</td><td class=\'diff-addedline\'><div><ins class="diffchange diffchange-inline">B </ins>4</div></td></tr>' . "\n",
 213                                         ]
 214                                 ],
 215                         ],
 216                         'Basic diff, revision IDs' => [
 217                                 [
 218                                         'fromrev' => '{{REPL:revA2}}',
 219                                         'torev' => '{{REPL:revA3}}',
 220                                 ],
 221                                 [
 222                                         'compare' => [
 223                                                 'fromid' => '{{REPL:pageA}}',
 224                                                 'fromrevid' => '{{REPL:revA2}}',
 225                                                 'fromns' => 0,
 226                                                 'fromtitle' => 'ApiComparePagesTest A',
 227                                                 'toid' => '{{REPL:pageA}}',
 228                                                 'torevid' => '{{REPL:revA3}}',
 229                                                 'tons' => 0,
 230                                                 'totitle' => 'ApiComparePagesTest A',
 231                                                 'body' => '<tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l1" >Line 1:</td>' . "\n"
 232                                                         . '<td colspan="2" class="diff-lineno">Line 1:</td></tr>' . "\n"
 233                                                         . '<tr><td class=\'diff-marker\'>−</td><td class=\'diff-deletedline\'><div>A <del class="diffchange diffchange-inline">2</del></div></td><td class=\'diff-marker\'>+</td><td class=\'diff-addedline\'><div>A <ins class="diffchange diffchange-inline">3</ins></div></td></tr>' . "\n",
 234                                         ]
 235                                 ],
 236                         ],
 237                         'Basic diff, deleted revision ID as sysop' => [
 238                                 [
 239                                         'fromrev' => '{{REPL:revA2}}',
 240                                         'torev' => '{{REPL:revC2}}',
 241                                 ],
 242                                 [
 243                                         'compare' => [
 244                                                 'fromid' => '{{REPL:pageA}}',
 245                                                 'fromrevid' => '{{REPL:revA2}}',
 246                                                 'fromns' => 0,
 247                                                 'fromtitle' => 'ApiComparePagesTest A',
 248                                                 'toid' => 0,
 249                                                 'torevid' => '{{REPL:revC2}}',
 250                                                 'tons' => 0,
 251                                                 'totitle' => 'ApiComparePagesTest C',
 252                                                 'toarchive' => true,
 253                                                 'body' => '<tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l1" >Line 1:</td>' . "\n"
 254                                                         . '<td colspan="2" class="diff-lineno">Line 1:</td></tr>' . "\n"
 255                                                         . '<tr><td class=\'diff-marker\'>−</td><td class=\'diff-deletedline\'><div><del class="diffchange diffchange-inline">A </del>2</div></td><td class=\'diff-marker\'>+</td><td class=\'diff-addedline\'><div><ins class="diffchange diffchange-inline">C </ins>2</div></td></tr>' . "\n",
 256                                         ]
 257                                 ],
 258                                 false, true
 259                         ],
 260                         'Basic diff, revdel as sysop' => [
 261                                 [
 262                                         'fromrev' => '{{REPL:revA2}}',
 263                                         'torev' => '{{REPL:revB2}}',
 264                                 ],
 265                                 [
 266                                         'compare' => [
 267                                                 'fromid' => '{{REPL:pageA}}',
 268                                                 'fromrevid' => '{{REPL:revA2}}',
 269                                                 'fromns' => 0,
 270                                                 'fromtitle' => 'ApiComparePagesTest A',
 271                                                 'toid' => '{{REPL:pageB}}',
 272                                                 'torevid' => '{{REPL:revB2}}',
 273                                                 'tons' => 0,
 274                                                 'totitle' => 'ApiComparePagesTest B',
 275                                                 'totexthidden' => true,
 276                                                 'touserhidden' => true,
 277                                                 'tocommenthidden' => true,
 278                                                 'body' => '<tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l1" >Line 1:</td>' . "\n"
 279                                                         . '<td colspan="2" class="diff-lineno">Line 1:</td></tr>' . "\n"
 280                                                         . '<tr><td class=\'diff-marker\'>−</td><td class=\'diff-deletedline\'><div><del class="diffchange diffchange-inline">A </del>2</div></td><td class=\'diff-marker\'>+</td><td class=\'diff-addedline\'><div><ins class="diffchange diffchange-inline">B </ins>2</div></td></tr>' . "\n",
 281                                         ]
 282                                 ],
 283                                 false, true
 284                         ],
 285                         'Basic diff, text' => [
 286                                 [
 287                                         'fromslots' => 'main',
 288                                         'fromtext-main' => 'From text',
 289                                         'fromcontentmodel-main' => 'wikitext',
 290                                         'toslots' => 'main',
 291                                         'totext-main' => 'To text {{subst:PAGENAME}}',
 292                                         'tocontentmodel-main' => 'wikitext',
 293                                 ],
 294                                 [
 295                                         'compare' => [
 296                                                 'body' => '<tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l1" >Line 1:</td>' . "\n"
 297                                                         . '<td colspan="2" class="diff-lineno">Line 1:</td></tr>' . "\n"
 298                                                         . '<tr><td class=\'diff-marker\'>−</td><td class=\'diff-deletedline\'><div><del class="diffchange diffchange-inline">From </del>text</div></td><td class=\'diff-marker\'>+</td><td class=\'diff-addedline\'><div><ins class="diffchange diffchange-inline">To </ins>text <ins class="diffchange diffchange-inline">{{subst:PAGENAME}}</ins></div></td></tr>' . "\n",
 299                                         ]
 300                                 ],
 301                         ],
 302                         'Basic diff, text 2' => [
 303                                 [
 304                                         'fromslots' => 'main',
 305                                         'fromtext-main' => 'From text',
 306                                         'toslots' => 'main',
 307                                         'totext-main' => 'To text {{subst:PAGENAME}}',
 308                                         'tocontentmodel-main' => 'wikitext',
 309                                 ],
 310                                 [
 311                                         'compare' => [
 312                                                 'body' => '<tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l1" >Line 1:</td>' . "\n"
 313                                                         . '<td colspan="2" class="diff-lineno">Line 1:</td></tr>' . "\n"
 314                                                         . '<tr><td class=\'diff-marker\'>−</td><td class=\'diff-deletedline\'><div><del class="diffchange diffchange-inline">From </del>text</div></td><td class=\'diff-marker\'>+</td><td class=\'diff-addedline\'><div><ins class="diffchange diffchange-inline">To </ins>text <ins class="diffchange diffchange-inline">{{subst:PAGENAME}}</ins></div></td></tr>' . "\n",
 315                                         ]
 316                                 ],
 317                         ],
 318                         'Basic diff, guessed model' => [
 319                                 [
 320                                         'fromslots' => 'main',
 321                                         'fromtext-main' => 'From text',
 322                                         'toslots' => 'main',
 323                                         'totext-main' => 'To text',
 324                                 ],
 325                                 [
 326                                         'warnings' => [ [ 'code' => 'compare-nocontentmodel', 'module' => 'compare' ] ],
 327                                         'compare' => [
 328                                                 'body' => '<tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l1" >Line 1:</td>' . "\n"
 329                                                         . '<td colspan="2" class="diff-lineno">Line 1:</td></tr>' . "\n"
 330                                                         . '<tr><td class=\'diff-marker\'>−</td><td class=\'diff-deletedline\'><div><del class="diffchange diffchange-inline">From </del>text</div></td><td class=\'diff-marker\'>+</td><td class=\'diff-addedline\'><div><ins class="diffchange diffchange-inline">To </ins>text</div></td></tr>' . "\n",
 331                                         ]
 332                                 ],
 333                         ],
 334                         'Basic diff, text with title and PST' => [
 335                                 [
 336                                         'fromslots' => 'main',
 337                                         'fromtext-main' => 'From text',
 338                                         'totitle' => 'Test',
 339                                         'toslots' => 'main',
 340                                         'totext-main' => 'To text {{subst:PAGENAME}}',
 341                                         'topst' => true,
 342                                 ],
 343                                 [
 344                                         'compare' => [
 345                                                 'body' => '<tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l1" >Line 1:</td>' . "\n"
 346                                                         . '<td colspan="2" class="diff-lineno">Line 1:</td></tr>' . "\n"
 347                                                         . '<tr><td class=\'diff-marker\'>−</td><td class=\'diff-deletedline\'><div><del class="diffchange diffchange-inline">From </del>text</div></td><td class=\'diff-marker\'>+</td><td class=\'diff-addedline\'><div><ins class="diffchange diffchange-inline">To </ins>text <ins class="diffchange diffchange-inline">Test</ins></div></td></tr>' . "\n",
 348                                         ]
 349                                 ],
 350                         ],
 351                         'Basic diff, text with page ID and PST' => [
 352                                 [
 353                                         'fromslots' => 'main',
 354                                         'fromtext-main' => 'From text',
 355                                         'toid' => '{{REPL:pageB}}',
 356                                         'toslots' => 'main',
 357                                         'totext-main' => 'To text {{subst:PAGENAME}}',
 358                                         'topst' => true,
 359                                 ],
 360                                 [
 361                                         'compare' => [
 362                                                 'body' => '<tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l1" >Line 1:</td>' . "\n"
 363                                                         . '<td colspan="2" class="diff-lineno">Line 1:</td></tr>' . "\n"
 364                                                         . '<tr><td class=\'diff-marker\'>−</td><td class=\'diff-deletedline\'><div><del class="diffchange diffchange-inline">From </del>text</div></td><td class=\'diff-marker\'>+</td><td class=\'diff-addedline\'><div><ins class="diffchange diffchange-inline">To </ins>text <ins class="diffchange diffchange-inline">ApiComparePagesTest B</ins></div></td></tr>' . "\n",
 365                                         ]
 366                                 ],
 367                         ],
 368                         'Basic diff, text with revision and PST' => [
 369                                 [
 370                                         'fromslots' => 'main',
 371                                         'fromtext-main' => 'From text',
 372                                         'torev' => '{{REPL:revB2}}',
 373                                         'toslots' => 'main',
 374                                         'totext-main' => 'To text {{subst:PAGENAME}}',
 375                                         'topst' => true,
 376                                 ],
 377                                 [
 378                                         'compare' => [
 379                                                 'body' => '<tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l1" >Line 1:</td>' . "\n"
 380                                                         . '<td colspan="2" class="diff-lineno">Line 1:</td></tr>' . "\n"
 381                                                         . '<tr><td class=\'diff-marker\'>−</td><td class=\'diff-deletedline\'><div><del class="diffchange diffchange-inline">From </del>text</div></td><td class=\'diff-marker\'>+</td><td class=\'diff-addedline\'><div><ins class="diffchange diffchange-inline">To </ins>text <ins class="diffchange diffchange-inline">ApiComparePagesTest B</ins></div></td></tr>' . "\n",
 382                                         ]
 383                                 ],
 384                         ],
 385                         'Basic diff, text with deleted revision and PST' => [
 386                                 [
 387                                         'fromslots' => 'main',
 388                                         'fromtext-main' => 'From text',
 389                                         'torev' => '{{REPL:revC2}}',
 390                                         'toslots' => 'main',
 391                                         'totext-main' => 'To text {{subst:PAGENAME}}',
 392                                         'topst' => true,
 393                                 ],
 394                                 [
 395                                         'compare' => [
 396                                                 'body' => '<tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l1" >Line 1:</td>' . "\n"
 397                                                         . '<td colspan="2" class="diff-lineno">Line 1:</td></tr>' . "\n"
 398                                                         . '<tr><td class=\'diff-marker\'>−</td><td class=\'diff-deletedline\'><div><del class="diffchange diffchange-inline">From </del>text</div></td><td class=\'diff-marker\'>+</td><td class=\'diff-addedline\'><div><ins class="diffchange diffchange-inline">To </ins>text <ins class="diffchange diffchange-inline">ApiComparePagesTest C</ins></div></td></tr>' . "\n",
 399                                         ]
 400                                 ],
 401                                 false, true
 402                         ],
 403                         'Basic diff, test with sections' => [
 404                                 [
 405                                         'fromtitle' => 'ApiComparePagesTest F',
 406                                         'fromslots' => 'main',
 407                                         'fromtext-main' => "== Section 2 ==\nFrom text?",
 408                                         'fromsection-main' => 2,
 409                                         'totitle' => 'ApiComparePagesTest F',
 410                                         'toslots' => 'main',
 411                                         'totext-main' => "== Section 1 ==\nTo text?",
 412                                         'tosection-main' => 1,
 413                                 ],
 414                                 [
 415                                         'compare' => [
 416                                                 'body' => '<tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l1" >Line 1:</td>' . "\n"
 417                                                         . '<td colspan="2" class="diff-lineno">Line 1:</td></tr>' . "\n"
 418                                                         . '<tr><td class=\'diff-marker\'> </td><td class=\'diff-context\'><div>== Section 1 ==</div></td><td class=\'diff-marker\'> </td><td class=\'diff-context\'><div>== Section 1 ==</div></td></tr>' . "\n"
 419                                                         . '<tr><td class=\'diff-marker\'>−</td><td class=\'diff-deletedline\'><div><del class="diffchange diffchange-inline">F 1.1</del></div></td><td class=\'diff-marker\'>+</td><td class=\'diff-addedline\'><div><ins class="diffchange diffchange-inline">To text?</ins></div></td></tr>' . "\n"
 420                                                         . '<tr><td class=\'diff-marker\'> </td><td class=\'diff-context\'></td><td class=\'diff-marker\'> </td><td class=\'diff-context\'></td></tr>' . "\n"
 421                                                         . '<tr><td class=\'diff-marker\'> </td><td class=\'diff-context\'><div>== Section 2 ==</div></td><td class=\'diff-marker\'> </td><td class=\'diff-context\'><div>== Section 2 ==</div></td></tr>' . "\n"
 422                                                         . '<tr><td class=\'diff-marker\'>−</td><td class=\'diff-deletedline\'><div><del class="diffchange diffchange-inline">From text?</del></div></td><td class=\'diff-marker\'>+</td><td class=\'diff-addedline\'><div><ins class="diffchange diffchange-inline">F 1.2</ins></div></td></tr>' . "\n",
 423                                         ]
 424                                 ],
 425                         ],
 426                         'Diff with all props' => [
 427                                 [
 428                                         'fromrev' => '{{REPL:revB1}}',
 429                                         'torev' => '{{REPL:revB3}}',
 430                                         'totitle' => 'ApiComparePagesTest B',
 431                                         'prop' => 'diff|diffsize|rel|ids|title|user|comment|parsedcomment|size'
 432                                 ],
 433                                 [
 434                                         'compare' => [
 435                                                 'fromid' => '{{REPL:pageB}}',
 436                                                 'fromrevid' => '{{REPL:revB1}}',
 437                                                 'fromns' => 0,
 438                                                 'fromtitle' => 'ApiComparePagesTest B',
 439                                                 'fromsize' => 3,
 440                                                 'fromuser' => '{{REPL:creator}}',
 441                                                 'fromuserid' => '{{REPL:creatorid}}',
 442                                                 'fromcomment' => 'Test for ApiComparePagesTest: B 1',
 443                                                 'fromparsedcomment' => 'Test for ApiComparePagesTest: B 1',
 444                                                 'toid' => '{{REPL:pageB}}',
 445                                                 'torevid' => '{{REPL:revB3}}',
 446                                                 'tons' => 0,
 447                                                 'totitle' => 'ApiComparePagesTest B',
 448                                                 'tosize' => 3,
 449                                                 'touserhidden' => true,
 450                                                 'tocommenthidden' => true,
 451                                                 'tosuppressed' => true,
 452                                                 'next' => '{{REPL:revB4}}',
 453                                                 'diffsize' => 391,
 454                                                 'body' => '<tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l1" >Line 1:</td>' . "\n"
 455                                                         . '<td colspan="2" class="diff-lineno">Line 1:</td></tr>' . "\n"
 456                                                         . '<tr><td class=\'diff-marker\'>−</td><td class=\'diff-deletedline\'><div>B <del class="diffchange diffchange-inline">1</del></div></td><td class=\'diff-marker\'>+</td><td class=\'diff-addedline\'><div>B <ins class="diffchange diffchange-inline">3</ins></div></td></tr>' . "\n",
 457                                         ]
 458                                 ],
 459                         ],
 460                         'Diff with all props as sysop' => [
 461                                 [
 462                                         'fromrev' => '{{REPL:revB2}}',
 463                                         'torev' => '{{REPL:revB3}}',
 464                                         'totitle' => 'ApiComparePagesTest B',
 465                                         'prop' => 'diff|diffsize|rel|ids|title|user|comment|parsedcomment|size'
 466                                 ],
 467                                 [
 468                                         'compare' => [
 469                                                 'fromid' => '{{REPL:pageB}}',
 470                                                 'fromrevid' => '{{REPL:revB2}}',
 471                                                 'fromns' => 0,
 472                                                 'fromtitle' => 'ApiComparePagesTest B',
 473                                                 'fromsize' => 3,
 474                                                 'fromtexthidden' => true,
 475                                                 'fromuserhidden' => true,
 476                                                 'fromuser' => '{{REPL:creator}}',
 477                                                 'fromuserid' => '{{REPL:creatorid}}',
 478                                                 'fromcommenthidden' => true,
 479                                                 'fromcomment' => 'Test for ApiComparePagesTest: B 2',
 480                                                 'fromparsedcomment' => 'Test for ApiComparePagesTest: B 2',
 481                                                 'toid' => '{{REPL:pageB}}',
 482                                                 'torevid' => '{{REPL:revB3}}',
 483                                                 'tons' => 0,
 484                                                 'totitle' => 'ApiComparePagesTest B',
 485                                                 'tosize' => 3,
 486                                                 'touserhidden' => true,
 487                                                 'tocommenthidden' => true,
 488                                                 'tosuppressed' => true,
 489                                                 'prev' => '{{REPL:revB1}}',
 490                                                 'next' => '{{REPL:revB4}}',
 491                                                 'diffsize' => 391,
 492                                                 'body' => '<tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l1" >Line 1:</td>' . "\n"
 493                                                         . '<td colspan="2" class="diff-lineno">Line 1:</td></tr>' . "\n"
 494                                                         . '<tr><td class=\'diff-marker\'>−</td><td class=\'diff-deletedline\'><div>B <del class="diffchange diffchange-inline">2</del></div></td><td class=\'diff-marker\'>+</td><td class=\'diff-addedline\'><div>B <ins class="diffchange diffchange-inline">3</ins></div></td></tr>' . "\n",
 495                                         ]
 496                                 ],
 497                                 false, true
 498                         ],
 499                         'Relative diff, cur' => [
 500                                 [
 501                                         'fromrev' => '{{REPL:revA2}}',
 502                                         'torelative' => 'cur',
 503                                         'prop' => 'ids',
 504                                 ],
 505                                 [
 506                                         'compare' => [
 507                                                 'fromid' => '{{REPL:pageA}}',
 508                                                 'fromrevid' => '{{REPL:revA2}}',
 509                                                 'toid' => '{{REPL:pageA}}',
 510                                                 'torevid' => '{{REPL:revA4}}',
 511                                         ]
 512                                 ],
 513                         ],
 514                         'Relative diff, next' => [
 515                                 [
 516                                         'fromrev' => '{{REPL:revE2}}',
 517                                         'torelative' => 'next',
 518                                         'prop' => 'ids|rel',
 519                                 ],
 520                                 [
 521                                         'compare' => [
 522                                                 'fromid' => '{{REPL:pageE}}',
 523                                                 'fromrevid' => '{{REPL:revE2}}',
 524                                                 'toid' => '{{REPL:pageE}}',
 525                                                 'torevid' => '{{REPL:revE3}}',
 526                                                 'prev' => '{{REPL:revE1}}',
 527                                                 'next' => '{{REPL:revE4}}',
 528                                         ]
 529                                 ],
 530                         ],
 531                         'Relative diff, prev' => [
 532                                 [
 533                                         'fromrev' => '{{REPL:revE3}}',
 534                                         'torelative' => 'prev',
 535                                         'prop' => 'ids|rel',
 536                                 ],
 537                                 [
 538                                         'compare' => [
 539                                                 'fromid' => '{{REPL:pageE}}',
 540                                                 'fromrevid' => '{{REPL:revE2}}',
 541                                                 'toid' => '{{REPL:pageE}}',
 542                                                 'torevid' => '{{REPL:revE3}}',
 543                                                 'prev' => '{{REPL:revE1}}',
 544                                                 'next' => '{{REPL:revE4}}',
 545                                         ]
 546                                 ],
 547                         ],
 548                         'Relative diff, no prev' => [
 549                                 [
 550                                         'fromrev' => '{{REPL:revA1}}',
 551                                         'torelative' => 'prev',
 552                                         'prop' => 'ids|rel|diff|title|user|comment',
 553                                 ],
 554                                 [
 555                                         'warnings' => [
 556                                                 [
 557                                                         'code' => 'compare-no-prev',
 558                                                         'module' => 'compare',
 559                                                 ],
 560                                         ],
 561                                         'compare' => [
 562                                                 'toid' => '{{REPL:pageA}}',
 563                                                 'torevid' => '{{REPL:revA1}}',
 564                                                 'tons' => 0,
 565                                                 'totitle' => 'ApiComparePagesTest A',
 566                                                 'touser' => '{{REPL:creator}}',
 567                                                 'touserid' => '{{REPL:creatorid}}',
 568                                                 'tocomment' => 'Test for ApiComparePagesTest: A 1',
 569                                                 'toparsedcomment' => 'Test for ApiComparePagesTest: A 1',
 570                                                 'next' => '{{REPL:revA2}}',
 571                                                 'body' => '<tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l1" >Line 1:</td>' . "\n"
 572                                                         . '<td colspan="2" class="diff-lineno">Line 1:</td></tr>' . "\n"
 573                                                         . '<tr><td class=\'diff-marker\'>−</td><td class=\'diff-deletedline\'><div> </div></td><td class=\'diff-marker\'>+</td><td class=\'diff-addedline\'><div><ins class="diffchange diffchange-inline">A 1</ins></div></td></tr>' . "\n",
 574                                         ],
 575                                 ],
 576                         ],
 577                         'Relative diff, no next' => [
 578                                 [
 579                                         'fromrev' => '{{REPL:revA4}}',
 580                                         'torelative' => 'next',
 581                                         'prop' => 'ids|rel|diff|title|user|comment',
 582                                 ],
 583                                 [
 584                                         'warnings' => [
 585                                                 [
 586                                                         'code' => 'compare-no-next',
 587                                                         'module' => 'compare',
 588                                                 ],
 589                                         ],
 590                                         'compare' => [
 591                                                 'fromid' => '{{REPL:pageA}}',
 592                                                 'fromrevid' => '{{REPL:revA4}}',
 593                                                 'fromns' => 0,
 594                                                 'fromtitle' => 'ApiComparePagesTest A',
 595                                                 'fromuser' => '{{REPL:creator}}',
 596                                                 'fromuserid' => '{{REPL:creatorid}}',
 597                                                 'fromcomment' => 'Test for ApiComparePagesTest: A 4',
 598                                                 'fromparsedcomment' => 'Test for ApiComparePagesTest: A 4',
 599                                                 'prev' => '{{REPL:revA3}}',
 600                                                 'body' => '',
 601                                         ],
 602                                 ],
 603                         ],
 604                         'Diff for specific slots' => [
 605                                 // @todo Use a page with multiple slots here
 606                                 [
 607                                         'fromrev' => '{{REPL:revA1}}',
 608                                         'torev' => '{{REPL:revA3}}',
 609                                         'prop' => 'diff',
 610                                         'slots' => 'main',
 611                                 ],
 612                                 [
 613                                         'compare' => [
 614                                                 'bodies' => [
 615                                                         'main' => '<tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l1" >Line 1:</td>' . "\n"
 616                                                                 . '<td colspan="2" class="diff-lineno">Line 1:</td></tr>' . "\n"
 617                                                                 . '<tr><td class=\'diff-marker\'>−</td><td class=\'diff-deletedline\'><div>A <del class="diffchange diffchange-inline">1</del></div></td><td class=\'diff-marker\'>+</td><td class=\'diff-addedline\'><div>A <ins class="diffchange diffchange-inline">3</ins></div></td></tr>' . "\n",
 618                                                 ],
 619                                         ],
 620                                 ],
 621                         ],
 622                         // @todo Add a test for diffing with a deleted slot. Deleting 'main' doesn't work.
 623
 624                         'Basic diff, deprecated text' => [
 625                                 [
 626                                         'fromtext' => 'From text',
 627                                         'fromcontentmodel' => 'wikitext',
 628                                         'totext' => 'To text {{subst:PAGENAME}}',
 629                                         'tocontentmodel' => 'wikitext',
 630                                 ],
 631                                 [
 632                                         'warnings' => self::makeDeprecationWarnings( 'fromtext', 'fromcontentmodel', 'totext', 'tocontentmodel' ),
 633                                         'compare' => [
 634                                                 'body' => '<tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l1" >Line 1:</td>' . "\n"
 635                                                         . '<td colspan="2" class="diff-lineno">Line 1:</td></tr>' . "\n"
 636                                                         . '<tr><td class=\'diff-marker\'>−</td><td class=\'diff-deletedline\'><div><del class="diffchange diffchange-inline">From </del>text</div></td><td class=\'diff-marker\'>+</td><td class=\'diff-addedline\'><div><ins class="diffchange diffchange-inline">To </ins>text <ins class="diffchange diffchange-inline">{{subst:PAGENAME}}</ins></div></td></tr>' . "\n",
 637                                         ]
 638                                 ],
 639                         ],
 640                         'Basic diff, deprecated text 2' => [
 641                                 [
 642                                         'fromtext' => 'From text',
 643                                         'totext' => 'To text {{subst:PAGENAME}}',
 644                                         'tocontentmodel' => 'wikitext',
 645                                 ],
 646                                 [
 647                                         'warnings' => self::makeDeprecationWarnings( 'fromtext', 'totext', 'tocontentmodel' ),
 648                                         'compare' => [
 649                                                 'body' => '<tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l1" >Line 1:</td>' . "\n"
 650                                                         . '<td colspan="2" class="diff-lineno">Line 1:</td></tr>' . "\n"
 651                                                         . '<tr><td class=\'diff-marker\'>−</td><td class=\'diff-deletedline\'><div><del class="diffchange diffchange-inline">From </del>text</div></td><td class=\'diff-marker\'>+</td><td class=\'diff-addedline\'><div><ins class="diffchange diffchange-inline">To </ins>text <ins class="diffchange diffchange-inline">{{subst:PAGENAME}}</ins></div></td></tr>' . "\n",
 652                                         ]
 653                                 ],
 654                         ],
 655                         'Basic diff, deprecated text, guessed model' => [
 656                                 [
 657                                         'fromtext' => 'From text',
 658                                         'totext' => 'To text',
 659                                 ],
 660                                 [
 661                                         'warnings' => array_merge( self::makeDeprecationWarnings( 'fromtext', 'totext' ), [
 662                                                 [ 'code' => 'compare-nocontentmodel', 'module' => 'compare' ],
 663                                         ] ),
 664                                         'compare' => [
 665                                                 'body' => '<tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l1" >Line 1:</td>' . "\n"
 666                                                         . '<td colspan="2" class="diff-lineno">Line 1:</td></tr>' . "\n"
 667                                                         . '<tr><td class=\'diff-marker\'>−</td><td class=\'diff-deletedline\'><div><del class="diffchange diffchange-inline">From </del>text</div></td><td class=\'diff-marker\'>+</td><td class=\'diff-addedline\'><div><ins class="diffchange diffchange-inline">To </ins>text</div></td></tr>' . "\n",
 668                                         ]
 669                                 ],
 670                         ],
 671                         'Basic diff, deprecated text with title and PST' => [
 672                                 [
 673                                         'fromtext' => 'From text',
 674                                         'totitle' => 'Test',
 675                                         'totext' => 'To text {{subst:PAGENAME}}',
 676                                         'topst' => true,
 677                                 ],
 678                                 [
 679                                         'warnings' => self::makeDeprecationWarnings( 'fromtext', 'totext' ),
 680                                         'compare' => [
 681                                                 'body' => '<tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l1" >Line 1:</td>' . "\n"
 682                                                         . '<td colspan="2" class="diff-lineno">Line 1:</td></tr>' . "\n"
 683                                                         . '<tr><td class=\'diff-marker\'>−</td><td class=\'diff-deletedline\'><div><del class="diffchange diffchange-inline">From </del>text</div></td><td class=\'diff-marker\'>+</td><td class=\'diff-addedline\'><div><ins class="diffchange diffchange-inline">To </ins>text <ins class="diffchange diffchange-inline">Test</ins></div></td></tr>' . "\n",
 684                                         ]
 685                                 ],
 686                         ],
 687                         'Basic diff, deprecated text with page ID and PST' => [
 688                                 [
 689                                         'fromtext' => 'From text',
 690                                         'toid' => '{{REPL:pageB}}',
 691                                         'totext' => 'To text {{subst:PAGENAME}}',
 692                                         'topst' => true,
 693                                 ],
 694                                 [
 695                                         'warnings' => self::makeDeprecationWarnings( 'fromtext', 'totext' ),
 696                                         'compare' => [
 697                                                 'body' => '<tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l1" >Line 1:</td>' . "\n"
 698                                                         . '<td colspan="2" class="diff-lineno">Line 1:</td></tr>' . "\n"
 699                                                         . '<tr><td class=\'diff-marker\'>−</td><td class=\'diff-deletedline\'><div><del class="diffchange diffchange-inline">From </del>text</div></td><td class=\'diff-marker\'>+</td><td class=\'diff-addedline\'><div><ins class="diffchange diffchange-inline">To </ins>text <ins class="diffchange diffchange-inline">ApiComparePagesTest B</ins></div></td></tr>' . "\n",
 700                                         ]
 701                                 ],
 702                         ],
 703                         'Basic diff, deprecated text with revision and PST' => [
 704                                 [
 705                                         'fromtext' => 'From text',
 706                                         'torev' => '{{REPL:revB2}}',
 707                                         'totext' => 'To text {{subst:PAGENAME}}',
 708                                         'topst' => true,
 709                                 ],
 710                                 [
 711                                         'warnings' => self::makeDeprecationWarnings( 'fromtext', 'totext' ),
 712                                         'compare' => [
 713                                                 'body' => '<tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l1" >Line 1:</td>' . "\n"
 714                                                         . '<td colspan="2" class="diff-lineno">Line 1:</td></tr>' . "\n"
 715                                                         . '<tr><td class=\'diff-marker\'>−</td><td class=\'diff-deletedline\'><div><del class="diffchange diffchange-inline">From </del>text</div></td><td class=\'diff-marker\'>+</td><td class=\'diff-addedline\'><div><ins class="diffchange diffchange-inline">To </ins>text <ins class="diffchange diffchange-inline">ApiComparePagesTest B</ins></div></td></tr>' . "\n",
 716                                         ]
 717                                 ],
 718                         ],
 719                         'Basic diff, deprecated text with deleted revision and PST' => [
 720                                 [
 721                                         'fromtext' => 'From text',
 722                                         'torev' => '{{REPL:revC2}}',
 723                                         'totext' => 'To text {{subst:PAGENAME}}',
 724                                         'topst' => true,
 725                                 ],
 726                                 [
 727                                         'warnings' => self::makeDeprecationWarnings( 'fromtext', 'totext' ),
 728                                         'compare' => [
 729                                                 'body' => '<tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l1" >Line 1:</td>' . "\n"
 730                                                         . '<td colspan="2" class="diff-lineno">Line 1:</td></tr>' . "\n"
 731                                                         . '<tr><td class=\'diff-marker\'>−</td><td class=\'diff-deletedline\'><div><del class="diffchange diffchange-inline">From </del>text</div></td><td class=\'diff-marker\'>+</td><td class=\'diff-addedline\'><div><ins class="diffchange diffchange-inline">To </ins>text <ins class="diffchange diffchange-inline">ApiComparePagesTest C</ins></div></td></tr>' . "\n",
 732                                         ]
 733                                 ],
 734                                 false, true
 735                         ],
 736                         'Basic diff, test with deprecated sections' => [
 737                                 [
 738                                         'fromtitle' => 'ApiComparePagesTest F',
 739                                         'fromsection' => 1,
 740                                         'totext' => "== Section 1 ==\nTo text\n\n== Section 2 ==\nTo text?",
 741                                         'tosection' => 2,
 742                                 ],
 743                                 [
 744                                         'warnings' => self::makeDeprecationWarnings( 'fromsection', 'totext', 'tosection' ),
 745                                         'compare' => [
 746                                                 'body' => '<tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l1" >Line 1:</td>' . "\n"
 747                                                         . '<td colspan="2" class="diff-lineno">Line 1:</td></tr>' . "\n"
 748                                                         . '<tr><td class=\'diff-marker\'>−</td><td class=\'diff-deletedline\'><div>== Section <del class="diffchange diffchange-inline">1 </del>==</div></td><td class=\'diff-marker\'>+</td><td class=\'diff-addedline\'><div>== Section <ins class="diffchange diffchange-inline">2 </ins>==</div></td></tr>' . "\n"
 749                                                         . '<tr><td class=\'diff-marker\'>−</td><td class=\'diff-deletedline\'><div><del class="diffchange diffchange-inline">F 1.1</del></div></td><td class=\'diff-marker\'>+</td><td class=\'diff-addedline\'><div><ins class="diffchange diffchange-inline">To text?</ins></div></td></tr>' . "\n",
 750                                                 'fromid' => '{{REPL:pageF}}',
 751                                                 'fromrevid' => '{{REPL:revF1}}',
 752                                                 'fromns' => '0',
 753                                                 'fromtitle' => 'ApiComparePagesTest F',
 754                                         ]
 755                                 ],
 756                         ],
 757                         'Basic diff, test with deprecated sections and revdel, non-sysop' => [
 758                                 [
 759                                         'fromrev' => '{{REPL:revB2}}',
 760                                         'fromsection' => 0,
 761                                         'torev' => '{{REPL:revB4}}',
 762                                         'tosection' => 0,
 763                                 ],
 764                                 [],
 765                                 'missingcontent'
 766                         ],
 767                         'Basic diff, test with deprecated sections and revdel, sysop' => [
 768                                 [
 769                                         'fromrev' => '{{REPL:revB2}}',
 770                                         'fromsection' => 0,
 771                                         'torev' => '{{REPL:revB4}}',
 772                                         'tosection' => 0,
 773                                 ],
 774                                 [
 775                                         'warnings' => self::makeDeprecationWarnings( 'fromsection', 'tosection' ),
 776                                         'compare' => [
 777                                                 'body' => '<tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l1" >Line 1:</td>' . "\n"
 778                                                         . '<td colspan="2" class="diff-lineno">Line 1:</td></tr>' . "\n"
 779                                                         . '<tr><td class=\'diff-marker\'>−</td><td class=\'diff-deletedline\'><div>B <del class="diffchange diffchange-inline">2</del></div></td><td class=\'diff-marker\'>+</td><td class=\'diff-addedline\'><div>B <ins class="diffchange diffchange-inline">4</ins></div></td></tr>' . "\n",
 780                                                 'fromid' => '{{REPL:pageB}}',
 781                                                 'fromrevid' => '{{REPL:revB2}}',
 782                                                 'fromns' => 0,
 783                                                 'fromtitle' => 'ApiComparePagesTest B',
 784                                                 'fromtexthidden' => true,
 785                                                 'fromuserhidden' => true,
 786                                                 'fromcommenthidden' => true,
 787                                                 'toid' => '{{REPL:pageB}}',
 788                                                 'torevid' => '{{REPL:revB4}}',
 789                                                 'tons' => 0,
 790                                                 'totitle' => 'ApiComparePagesTest B',
 791                                         ]
 792                                 ],
 793                                 false, true,
 794                         ],
 795
 796                         'Error, missing title' => [
 797                                 [
 798                                         'fromtitle' => 'ApiComparePagesTest X',
 799                                         'totitle' => 'ApiComparePagesTest B',
 800                                 ],
 801                                 [],
 802                                 'missingtitle',
 803                         ],
 804                         'Error, invalid title' => [
 805                                 [
 806                                         'fromtitle' => '<bad>',
 807                                         'totitle' => 'ApiComparePagesTest B',
 808                                 ],
 809                                 [],
 810                                 'invalidtitle',
 811                         ],
 812                         'Error, missing page ID' => [
 813                                 [
 814                                         'fromid' => 8817900,
 815                                         'totitle' => 'ApiComparePagesTest B',
 816                                 ],
 817                                 [],
 818                                 'nosuchpageid',
 819                         ],
 820                         'Error, page with missing revision' => [
 821                                 [
 822                                         'fromtitle' => 'ApiComparePagesTest D',
 823                                         'totitle' => 'ApiComparePagesTest B',
 824                                 ],
 825                                 [],
 826                                 'nosuchrevid',
 827                         ],
 828                         'Error, page with no revision' => [
 829                                 [
 830                                         'fromtitle' => 'ApiComparePagesTest E',
 831                                         'totitle' => 'ApiComparePagesTest B',
 832                                 ],
 833                                 [],
 834                                 'nosuchrevid',
 835                         ],
 836                         'Error, bad rev ID' => [
 837                                 [
 838                                         'fromrev' => 8817900,
 839                                         'totitle' => 'ApiComparePagesTest B',
 840                                 ],
 841                                 [],
 842                                 'nosuchrevid',
 843                         ],
 844                         'Error, deleted revision ID, non-sysop' => [
 845                                 [
 846                                         'fromrev' => '{{REPL:revA2}}',
 847                                         'torev' => '{{REPL:revC2}}',
 848                                 ],
 849                                 [],
 850                                 'nosuchrevid',
 851                         ],
 852                         'Error, deleted revision ID and torelative=prev' => [
 853                                 [
 854                                         'fromrev' => '{{REPL:revC2}}',
 855                                         'torelative' => 'prev',
 856                                 ],
 857                                 [],
 858                                 'compare-relative-to-deleted', true
 859                         ],
 860                         'Error, deleted revision ID and torelative=next' => [
 861                                 [
 862                                         'fromrev' => '{{REPL:revC2}}',
 863                                         'torelative' => 'next',
 864                                 ],
 865                                 [],
 866                                 'compare-relative-to-deleted', true
 867                         ],
 868                         'Deleted revision ID and torelative=cur' => [
 869                                 [
 870                                         'fromrev' => '{{REPL:revC2}}',
 871                                         'torelative' => 'cur',
 872                                 ],
 873                                 [],
 874                                 'nosuchrevid', true
 875                         ],
 876                         'Error, revision-deleted content' => [
 877                                 [
 878                                         'fromrev' => '{{REPL:revA2}}',
 879                                         'torev' => '{{REPL:revB2}}',
 880                                 ],
 881                                 [],
 882                                 'missingcontent',
 883                         ],
 884                         'Error, text with no title and PST' => [
 885                                 [
 886                                         'fromtext' => 'From text',
 887                                         'totext' => 'To text {{subst:PAGENAME}}',
 888                                         'topst' => true,
 889                                 ],
 890                                 [],
 891                                 'compare-no-title',
 892                         ],
 893                         'Error, test with invalid from section ID' => [
 894                                 [
 895                                         'fromtitle' => 'ApiComparePagesTest F',
 896                                         'fromsection' => 5,
 897                                         'totext' => "== Section 1 ==\nTo text\n\n== Section 2 ==\nTo text?",
 898                                         'tosection' => 2,
 899                                 ],
 900                                 [],
 901                                 'nosuchfromsection',
 902                         ],
 903                         'Error, test with invalid to section ID' => [
 904                                 [
 905                                         'fromtitle' => 'ApiComparePagesTest F',
 906                                         'fromsection' => 1,
 907                                         'totext' => "== Section 1 ==\nTo text\n\n== Section 2 ==\nTo text?",
 908                                         'tosection' => 5,
 909                                 ],
 910                                 [],
 911                                 'nosuchtosection',
 912                         ],
 913                         'Error, Relative diff, no from revision' => [
 914                                 [
 915                                         'fromtext' => 'Foo',
 916                                         'torelative' => 'cur',
 917                                         'prop' => 'ids',
 918                                 ],
 919                                 [],
 920                                 'compare-relative-to-nothing'
 921                         ],
 922                         'Error, Relative diff, cur with no current revision' => [
 923                                 [
 924                                         'fromrev' => '{{REPL:revE2}}',
 925                                         'torelative' => 'cur',
 926                                         'prop' => 'ids',
 927                                 ],
 928                                 [],
 929                                 'nosuchrevid'
 930                         ],
 931                         'Error, Relative diff, next revdeleted' => [
 932                                 [
 933                                         'fromrev' => '{{REPL:revB1}}',
 934                                         'torelative' => 'next',
 935                                         'prop' => 'ids',
 936                                 ],
 937                                 [],
 938                                 'missingcontent'
 939                         ],
 940                         'Error, Relative diff, prev revdeleted' => [
 941                                 [
 942                                         'fromrev' => '{{REPL:revB3}}',
 943                                         'torelative' => 'prev',
 944                                         'prop' => 'ids',
 945                                 ],
 946                                 [],
 947                                 'missingcontent'
 948                         ],
 949                         'Error, section diff with no revision' => [
 950                                 [
 951                                         'fromtitle' => 'ApiComparePagesTest F',
 952                                         'toslots' => 'main',
 953                                         'totext-main' => "== Section 1 ==\nTo text?",
 954                                         'tosection-main' => 1,
 955                                 ],
 956                                 [],
 957                                 'compare-notorevision',
 958                         ],
 959                         'Error, section diff with revdeleted revision' => [
 960                                 [
 961                                         'fromtitle' => 'ApiComparePagesTest F',
 962                                         'torev' => '{{REPL:revB2}}',
 963                                         'toslots' => 'main',
 964                                         'totext-main' => "== Section 1 ==\nTo text?",
 965                                         'tosection-main' => 1,
 966                                 ],
 967                                 [],
 968                                 'missingcontent',
 969                         ],
 970                         'Error, section diff with a content model not supporting sections' => [
 971                                 [
 972                                         'fromtitle' => 'ApiComparePagesTest G',
 973                                         'torev' => '{{REPL:revG1}}',
 974                                         'toslots' => 'main',
 975                                         'totext-main' => "== Section 1 ==\nTo text?",
 976                                         'tosection-main' => 1,
 977                                 ],
 978                                 [],
 979                                 'sectionsnotsupported',
 980                         ],
 981                         'Error, section diff with bad content model' => [
 982                                 [
 983                                         'fromtitle' => 'ApiComparePagesTest F',
 984                                         'torev' => '{{REPL:revF1}}',
 985                                         'toslots' => 'main',
 986                                         'totext-main' => "== Section 1 ==\nTo text?",
 987                                         'tosection-main' => 1,
 988                                         'tocontentmodel-main' => CONTENT_MODEL_TEXT,
 989                                 ],
 990                                 [],
 991                                 'sectionreplacefailed',
 992                         ],
 993                         'Error, deleting the main slot' => [
 994                                 [
 995                                         'fromtitle' => 'ApiComparePagesTest A',
 996                                         'totitle' => 'ApiComparePagesTest A',
 997                                         'toslots' => 'main',
 998                                 ],
 999                                 [],
1000                                 'compare-maintextrequired',
1001                         ],
1002                         // @todo Add a test for using 'tosection-foo' without 'totext-foo' (can't do it with main)
1003                 ];
1004                 // phpcs:enable
1005         }
1006 }