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