MediaWiki  master
PageArchiveTestBase.php
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1 <?php
4 
8 abstract class PageArchiveTestBase extends MediaWikiTestCase {
9 
13  protected $pageId;
14 
18  protected $archivedPage;
19 
24  protected $ipEditor;
25 
30  protected $firstRev;
31 
36  protected $ipRev;
37 
38  function __construct( $name = null, array $data = [], $dataName = '' ) {
39  parent::__construct( $name, $data, $dataName );
40 
41  $this->tablesUsed = array_merge(
42  $this->tablesUsed,
43  [
44  'page',
45  'revision',
46  'revision_comment_temp',
47  'ip_changes',
48  'text',
49  'archive',
50  'recentchanges',
51  'logging',
52  'page_props',
53  'comment',
54  ]
55  );
56  }
57 
58  protected function addCoreDBData() {
59  // Blank out to avoid failures when schema overrides imposed by subclasses
60  // affect revision storage.
61  }
62 
66  abstract protected function getMcrMigrationStage();
67 
71  abstract protected function getMcrTablesToReset();
72 
76  protected function getContentHandlerUseDB() {
77  return true;
78  }
79 
80  protected function setUp() {
81  parent::setUp();
82 
83  $this->tablesUsed += $this->getMcrTablesToReset();
84 
85  $this->setMwGlobals( 'wgActorTableSchemaMigrationStage', SCHEMA_COMPAT_OLD );
86  $this->setMwGlobals( 'wgContentHandlerUseDB', $this->getContentHandlerUseDB() );
87  $this->setMwGlobals(
88  'wgMultiContentRevisionSchemaMigrationStage',
89  $this->getMcrMigrationStage()
90  );
91  $this->overrideMwServices();
92 
93  // First create our dummy page
94  $page = Title::newFromText( 'PageArchiveTest_thePage' );
95  $page = new WikiPage( $page );
97  'testing',
98  $page->getTitle(),
100  );
101 
102  $user = $this->getTestUser()->getUser();
103  $page->doEditContent( $content, 'testing', EDIT_NEW, false, $user );
104 
105  $this->pageId = $page->getId();
106  $this->firstRev = $page->getRevision()->getRevisionRecord();
107 
108  // Insert IP revision
109  $this->ipEditor = '2001:db8::1';
110 
111  $revisionStore = MediaWikiServices::getInstance()->getRevisionStore();
112 
113  $ipTimestamp = wfTimestamp(
114  TS_MW,
115  wfTimestamp( TS_UNIX, $this->firstRev->getTimestamp() ) + 1
116  );
117 
118  $rev = $revisionStore->newMutableRevisionFromArray( [
119  'text' => 'Lorem Ipsum',
120  'comment' => 'just a test',
121  'page' => $page->getId(),
122  'user_text' => $this->ipEditor,
123  'timestamp' => $ipTimestamp,
124  ] );
125 
126  $dbw = wfGetDB( DB_MASTER );
127  $this->ipRev = $revisionStore->insertRevisionOn( $rev, $dbw );
128 
129  // Delete the page
130  $page->doDeleteArticleReal( 'Just a test deletion' );
131 
132  $this->archivedPage = new PageArchive( $page->getTitle() );
133  }
134 
139  public function testUndeleteRevisions() {
140  // TODO: MCR: Test undeletion with multiple slots. Check that slots remain untouched.
141 
142  // First make sure old revisions are archived
143  $dbr = wfGetDB( DB_REPLICA );
144  $arQuery = Revision::getArchiveQueryInfo();
145  $row = $dbr->selectRow(
146  $arQuery['tables'],
147  $arQuery['fields'],
148  [ 'ar_rev_id' => $this->ipRev->getId() ],
149  __METHOD__,
150  [],
151  $arQuery['joins']
152  );
153  $this->assertEquals( $this->ipEditor, $row->ar_user_text );
154 
155  // Should not be in revision
156  $row = $dbr->selectRow( 'revision', '1', [ 'rev_id' => $this->ipRev->getId() ] );
157  $this->assertFalse( $row );
158 
159  // Should not be in ip_changes
160  $row = $dbr->selectRow( 'ip_changes', '1', [ 'ipc_rev_id' => $this->ipRev->getId() ] );
161  $this->assertFalse( $row );
162 
163  // Restore the page
164  $this->archivedPage->undelete( [] );
165 
166  // Should be back in revision
168  $row = $dbr->selectRow(
169  $revQuery['tables'],
170  $revQuery['fields'],
171  [ 'rev_id' => $this->ipRev->getId() ],
172  __METHOD__,
173  [],
174  $revQuery['joins']
175  );
176  $this->assertNotFalse( $row, 'row exists in revision table' );
177  $this->assertEquals( $this->ipEditor, $row->rev_user_text );
178 
179  // Should be back in ip_changes
180  $row = $dbr->selectRow( 'ip_changes', [ 'ipc_hex' ], [ 'ipc_rev_id' => $this->ipRev->getId() ] );
181  $this->assertNotFalse( $row, 'row exists in ip_changes table' );
182  $this->assertEquals( IP::toHex( $this->ipEditor ), $row->ipc_hex );
183  }
184 
185  abstract protected function getExpectedArchiveRows();
186 
190  public function testListRevisions() {
191  $revisions = $this->archivedPage->listRevisions();
192  $this->assertEquals( 2, $revisions->numRows() );
193 
194  // Get the rows as arrays
195  $row0 = (array)$revisions->current();
196  $row1 = (array)$revisions->next();
197 
198  $expectedRows = $this->getExpectedArchiveRows();
199 
200  $this->assertEquals(
201  $expectedRows[0],
202  $row0
203  );
204  $this->assertEquals(
205  $expectedRows[1],
206  $row1
207  );
208  }
209 
213  public function testListPagesBySearch() {
214  $pages = PageArchive::listPagesBySearch( 'PageArchiveTest_thePage' );
215  $this->assertSame( 1, $pages->numRows() );
216 
217  $page = (array)$pages->current();
218 
219  $this->assertSame(
220  [
221  'ar_namespace' => '0',
222  'ar_title' => 'PageArchiveTest_thePage',
223  'count' => '2',
224  ],
225  $page
226  );
227  }
228 
232  public function testListPagesByPrefix() {
233  $pages = PageArchive::listPagesByPrefix( 'PageArchiveTest' );
234  $this->assertSame( 1, $pages->numRows() );
235 
236  $page = (array)$pages->current();
237 
238  $this->assertSame(
239  [
240  'ar_namespace' => '0',
241  'ar_title' => 'PageArchiveTest_thePage',
242  'count' => '2',
243  ],
244  $page
245  );
246  }
247 
249  yield 'missing ar_text_id field' => [ [] ];
250  yield 'ar_text_id is null' => [ [ 'ar_text_id' => null ] ];
251  yield 'ar_text_id is zero' => [ [ 'ar_text_id' => 0 ] ];
252  yield 'ar_text_id is "0"' => [ [ 'ar_text_id' => '0' ] ];
253  }
254 
260  $this->hideDeprecated( PageArchive::class . '::getTextFromRow' );
261  $this->setExpectedException( InvalidArgumentException::class );
262 
263  $this->archivedPage->getTextFromRow( (object)$row );
264  }
265 
269  public function testGetLastRevisionText() {
270  $this->hideDeprecated( PageArchive::class . '::getLastRevisionText' );
271 
272  $text = $this->archivedPage->getLastRevisionText();
273  $this->assertSame( 'Lorem Ipsum', $text );
274  }
275 
279  public function testGetLastRevisionId() {
280  $id = $this->archivedPage->getLastRevisionId();
281  $this->assertSame( $this->ipRev->getId(), $id );
282  }
283 
287  public function testIsDeleted() {
288  $this->assertTrue( $this->archivedPage->isDeleted() );
289  }
290 
294  public function testGetRevision() {
295  $rev = $this->archivedPage->getRevision( $this->ipRev->getTimestamp() );
296  $this->assertNotNull( $rev );
297  $this->assertSame( $this->pageId, $rev->getPage() );
298 
299  $rev = $this->archivedPage->getRevision( '22991212115555' );
300  $this->assertNull( $rev );
301  }
302 
306  public function testGetArchivedRevision() {
307  $rev = $this->archivedPage->getArchivedRevision( $this->ipRev->getId() );
308  $this->assertNotNull( $rev );
309  $this->assertSame( $this->ipRev->getTimestamp(), $rev->getTimestamp() );
310  $this->assertSame( $this->pageId, $rev->getPage() );
311 
312  $rev = $this->archivedPage->getArchivedRevision( 632546 );
313  $this->assertNull( $rev );
314  }
315 
319  public function testGetPreviousRevision() {
320  $rev = $this->archivedPage->getPreviousRevision( $this->ipRev->getTimestamp() );
321  $this->assertNotNull( $rev );
322  $this->assertSame( $this->firstRev->getId(), $rev->getId() );
323 
324  $rev = $this->archivedPage->getPreviousRevision( $this->firstRev->getTimestamp() );
325  $this->assertNull( $rev );
326 
327  // Re-create our dummy page
328  $title = Title::newFromText( 'PageArchiveTest_thePage' );
329  $page = new WikiPage( $title );
331  'testing again',
332  $page->getTitle(),
334  );
335 
336  $user = $this->getTestUser()->getUser();
337  $status = $page->doEditContent( $content, 'testing', EDIT_NEW, false, $user );
338 
340  $newRev = $status->value['revision'];
341 
342  // force the revision timestamp
343  $newTimestamp = wfTimestamp(
344  TS_MW,
345  wfTimestamp( TS_UNIX, $this->ipRev->getTimestamp() ) + 1
346  );
347 
348  $this->db->update(
349  'revision',
350  [ 'rev_timestamp' => $this->db->timestamp( $newTimestamp ) ],
351  [ 'rev_id' => $newRev->getId() ]
352  );
353 
354  // check that we don't get the existing revision too soon.
355  $rev = $this->archivedPage->getPreviousRevision( $newTimestamp );
356  $this->assertNotNull( $rev );
357  $this->assertSame( $this->ipRev->getId(), $rev->getId() );
358 
359  // check that we do get the existing revision when appropriate.
360  $afterNewTimestamp = wfTimestamp(
361  TS_MW,
362  wfTimestamp( TS_UNIX, $newTimestamp ) + 1
363  );
364 
365  $rev = $this->archivedPage->getPreviousRevision( $afterNewTimestamp );
366  $this->assertNotNull( $rev );
367  $this->assertSame( $newRev->getId(), $rev->getId() );
368  }
369 
370 }
The wiki should then use memcached to cache various data To use multiple just add more items to the array To increase the weight of a make its entry a array("192.168.0.1:11211", 2))
$ipEditor
A logged out user who edited the page before it was archived.
static toHex( $ip)
Return a zero-padded upper case hexadecimal representation of an IP address.
Definition: IP.php:417
$data
Utility to generate mapping file used in mw.Title (phpCharToUpper.json)
const CONTENT_MODEL_WIKITEXT
Definition: Defines.php:235
testIsDeleted()
PageArchive::isDeleted.
Apache License January AND DISTRIBUTION Definitions License shall mean the terms and conditions for use
wfGetDB( $db, $groups=[], $wiki=false)
Get a Database object.
testGetLastRevisionText()
PageArchive::getLastRevisionText.
injection txt This is an overview of how MediaWiki makes use of dependency injection The design described here grew from the discussion of RFC T384 The term dependency this means that anything an object needs to operate should be injected from the the object itself should only know narrow no concrete implementation of the logic it relies on The requirement to inject everything typically results in an architecture that based on two main types of and essentially stateless service objects that use other service objects to operate on the value objects As of the beginning MediaWiki is only starting to use the DI approach Much of the code still relies on global state or direct resulting in a highly cyclical dependency MediaWikiServices
Definition: injection.txt:23
static listPagesBySearch( $term)
List deleted pages recorded in the archive matching the given term, using search engine archive...
Definition: PageArchive.php:97
static listPagesByPrefix( $prefix)
List deleted pages recorded in the archive table matching the given title prefix. ...
const DB_MASTER
Definition: defines.php:26
$newRev
Definition: pageupdater.txt:66
Status::newGood()` to allow deletion, and then `return false` from the hook function. Ensure you consume the 'ChangeTagAfterDelete' hook to carry out custom deletion actions. $tag:name of the tag $user:user initiating the action & $status:Status object. See above. 'ChangeTagsListActive':Allows you to nominate which of the tags your extension uses are in active use. & $tags:list of all active tags. Append to this array. 'ChangeTagsAfterUpdateTags':Called after tags have been updated with the ChangeTags::updateTags function. Params:$addedTags:tags effectively added in the update $removedTags:tags effectively removed in the update $prevTags:tags that were present prior to the update $rc_id:recentchanges table id $rev_id:revision table id $log_id:logging table id $params:tag params $rc:RecentChange being tagged when the tagging accompanies the action, or null $user:User who performed the tagging when the tagging is subsequent to the action, or null 'ChangeTagsAllowedAdd':Called when checking if a user can add tags to a change. & $allowedTags:List of all the tags the user is allowed to add. Any tags the user wants to add( $addTags) that are not in this array will cause it to fail. You may add or remove tags to this array as required. $addTags:List of tags user intends to add. $user:User who is adding the tags. 'ChangeUserGroups':Called before user groups are changed. $performer:The User who will perform the change $user:The User whose groups will be changed & $add:The groups that will be added & $remove:The groups that will be removed 'Collation::factory':Called if $wgCategoryCollation is an unknown collation. $collationName:Name of the collation in question & $collationObject:Null. Replace with a subclass of the Collation class that implements the collation given in $collationName. 'ConfirmEmailComplete':Called after a user 's email has been confirmed successfully. $user:user(object) whose email is being confirmed 'ContentAlterParserOutput':Modify parser output for a given content object. Called by Content::getParserOutput after parsing has finished. Can be used for changes that depend on the result of the parsing but have to be done before LinksUpdate is called(such as adding tracking categories based on the rendered HTML). $content:The Content to render $title:Title of the page, as context $parserOutput:ParserOutput to manipulate 'ContentGetParserOutput':Customize parser output for a given content object, called by AbstractContent::getParserOutput. May be used to override the normal model-specific rendering of page content. $content:The Content to render $title:Title of the page, as context $revId:The revision ID, as context $options:ParserOptions for rendering. To avoid confusing the parser cache, the output can only depend on parameters provided to this hook function, not on global state. $generateHtml:boolean, indicating whether full HTML should be generated. If false, generation of HTML may be skipped, but other information should still be present in the ParserOutput object. & $output:ParserOutput, to manipulate or replace 'ContentHandlerDefaultModelFor':Called when the default content model is determined for a given title. May be used to assign a different model for that title. $title:the Title in question & $model:the model name. Use with CONTENT_MODEL_XXX constants. 'ContentHandlerForModelID':Called when a ContentHandler is requested for a given content model name, but no entry for that model exists in $wgContentHandlers. Note:if your extension implements additional models via this hook, please use GetContentModels hook to make them known to core. $modeName:the requested content model name & $handler:set this to a ContentHandler object, if desired. 'ContentModelCanBeUsedOn':Called to determine whether that content model can be used on a given page. This is especially useful to prevent some content models to be used in some special location. $contentModel:ID of the content model in question $title:the Title in question. & $ok:Output parameter, whether it is OK to use $contentModel on $title. Handler functions that modify $ok should generally return false to prevent further hooks from further modifying $ok. 'ContribsPager::getQueryInfo':Before the contributions query is about to run & $pager:Pager object for contributions & $queryInfo:The query for the contribs Pager 'ContribsPager::reallyDoQuery':Called before really executing the query for My Contributions & $data:an array of results of all contribs queries $pager:The ContribsPager object hooked into $offset:Index offset, inclusive $limit:Exact query limit $descending:Query direction, false for ascending, true for descending 'ContributionsLineEnding':Called before a contributions HTML line is finished $page:SpecialPage object for contributions & $ret:the HTML line $row:the DB row for this line & $classes:the classes to add to the surrounding< li > & $attribs:associative array of other HTML attributes for the< li > element. Currently only data attributes reserved to MediaWiki are allowed(see Sanitizer::isReservedDataAttribute). 'ContributionsToolLinks':Change tool links above Special:Contributions $id:User identifier $title:User page title & $tools:Array of tool links $specialPage:SpecialPage instance for context and services. Can be either SpecialContributions or DeletedContributionsPage. Extensions should type hint against a generic SpecialPage though. 'ConvertContent':Called by AbstractContent::convert when a conversion to another content model is requested. Handler functions that modify $result should generally return false to disable further attempts at conversion. $content:The Content object to be converted. $toModel:The ID of the content model to convert to. $lossy:boolean indicating whether lossy conversion is allowed. & $result:Output parameter, in case the handler function wants to provide a converted Content object. Note that $result->getContentModel() must return $toModel. 'ContentSecurityPolicyDefaultSource':Modify the allowed CSP load sources. This affects all directives except for the script directive. If you want to add a script source, see ContentSecurityPolicyScriptSource hook. & $defaultSrc:Array of Content-Security-Policy allowed sources $policyConfig:Current configuration for the Content-Security-Policy header $mode:ContentSecurityPolicy::REPORT_ONLY_MODE or ContentSecurityPolicy::FULL_MODE depending on type of header 'ContentSecurityPolicyDirectives':Modify the content security policy directives. Use this only if ContentSecurityPolicyDefaultSource and ContentSecurityPolicyScriptSource do not meet your needs. & $directives:Array of CSP directives $policyConfig:Current configuration for the CSP header $mode:ContentSecurityPolicy::REPORT_ONLY_MODE or ContentSecurityPolicy::FULL_MODE depending on type of header 'ContentSecurityPolicyScriptSource':Modify the allowed CSP script sources. Note that you also have to use ContentSecurityPolicyDefaultSource if you want non-script sources to be loaded from whatever you add. & $scriptSrc:Array of CSP directives $policyConfig:Current configuration for the CSP header $mode:ContentSecurityPolicy::REPORT_ONLY_MODE or ContentSecurityPolicy::FULL_MODE depending on type of header 'CustomEditor':When invoking the page editor Return true to allow the normal editor to be used, or false if implementing a custom editor, e.g. for a special namespace, etc. $article:Article being edited $user:User performing the edit 'DeletedContribsPager::reallyDoQuery':Called before really executing the query for Special:DeletedContributions Similar to ContribsPager::reallyDoQuery & $data:an array of results of all contribs queries $pager:The DeletedContribsPager object hooked into $offset:Index offset, inclusive $limit:Exact query limit $descending:Query direction, false for ascending, true for descending 'DeletedContributionsLineEnding':Called before a DeletedContributions HTML line is finished. Similar to ContributionsLineEnding $page:SpecialPage object for DeletedContributions & $ret:the HTML line $row:the DB row for this line & $classes:the classes to add to the surrounding< li > & $attribs:associative array of other HTML attributes for the< li > element. Currently only data attributes reserved to MediaWiki are allowed(see Sanitizer::isReservedDataAttribute). 'DeleteUnknownPreferences':Called by the cleanupPreferences.php maintenance script to build a WHERE clause with which to delete preferences that are not known about. This hook is used by extensions that have dynamically-named preferences that should not be deleted in the usual cleanup process. For example, the Gadgets extension creates preferences prefixed with 'gadget-', and so anything with that prefix is excluded from the deletion. &where:An array that will be passed as the $cond parameter to IDatabase::select() to determine what will be deleted from the user_properties table. $db:The IDatabase object, useful for accessing $db->buildLike() etc. 'DifferenceEngineAfterLoadNewText':called in DifferenceEngine::loadNewText() after the new revision 's content has been loaded into the class member variable $differenceEngine->mNewContent but before returning true from this function. $differenceEngine:DifferenceEngine object 'DifferenceEngineLoadTextAfterNewContentIsLoaded':called in DifferenceEngine::loadText() after the new revision 's content has been loaded into the class member variable $differenceEngine->mNewContent but before checking if the variable 's value is null. This hook can be used to inject content into said class member variable. $differenceEngine:DifferenceEngine object 'DifferenceEngineMarkPatrolledLink':Allows extensions to change the "mark as patrolled" link which is shown both on the diff header as well as on the bottom of a page, usually wrapped in a span element which has class="patrollink". $differenceEngine:DifferenceEngine object & $markAsPatrolledLink:The "mark as patrolled" link HTML(string) $rcid:Recent change ID(rc_id) for this change(int) 'DifferenceEngineMarkPatrolledRCID':Allows extensions to possibly change the rcid parameter. For example the rcid might be set to zero due to the user being the same as the performer of the change but an extension might still want to show it under certain conditions. & $rcid:rc_id(int) of the change or 0 $differenceEngine:DifferenceEngine object $change:RecentChange object $user:User object representing the current user 'DifferenceEngineNewHeader':Allows extensions to change the $newHeader variable, which contains information about the new revision, such as the revision 's author, whether the revision was marked as a minor edit or not, etc. $differenceEngine:DifferenceEngine object & $newHeader:The string containing the various #mw-diff-otitle[1-5] divs, which include things like revision author info, revision comment, RevisionDelete link and more $formattedRevisionTools:Array containing revision tools, some of which may have been injected with the DiffRevisionTools hook $nextlink:String containing the link to the next revision(if any) $status
Definition: hooks.txt:1263
wfTimestamp( $outputtype=TS_UNIX, $ts=0)
Get a timestamp string in one of various formats.
testGetPreviousRevision()
PageArchive::getPreviousRevision.
testGetLastRevisionId()
PageArchive::getLastRevisionId.
this hook is for auditing only or null if authentication failed before getting that far or null if we can t even determine that When $user is not null
Definition: hooks.txt:780
static getArchiveQueryInfo()
Return the tables, fields, and join conditions to be selected to create a new archived revision objec...
Definition: Revision.php:525
namespace and then decline to actually register it file or subcat img or subcat $title
Definition: hooks.txt:925
static getQueryInfo( $options=[])
Return the tables, fields, and join conditions to be selected to create a new revision object...
Definition: Revision.php:511
presenting them properly to the user as errors is done by the caller return true use this to change the list i e etc $rev
Definition: hooks.txt:1766
overrideMwServices(Config $configOverrides=null, array $services=[])
Stashes the global instance of MediaWikiServices, and installs a new one, allowing test cases to over...
testUndeleteRevisions()
PageArchive::undelete PageArchive::undeleteRevisions.
setMwGlobals( $pairs, $value=null)
Sets a global, maintaining a stashed version of the previous global to be restored in tearDown...
testListRevisions()
PageArchive::listRevisions.
hideDeprecated( $function)
Don&#39;t throw a warning if $function is deprecated and called later.
__construct( $name=null, array $data=[], $dataName='')
testGetTextFromRowThrowsInvalidArgumentException(array $row)
provideGetTextFromRowThrowsInvalidArgumentException PageArchive::getTextFromRow
RevisionRecord $firstRev
Revision of the first (initial) edit.
injection txt This is an overview of how MediaWiki makes use of dependency injection The design described here grew from the discussion of RFC T384 The term dependency this means that anything an object needs to operate should be injected from the the object itself should only know narrow no concrete implementation of the logic it relies on The requirement to inject everything typically results in an architecture that based on two main types of and essentially stateless service objects that use other service objects to operate on the value objects As of the beginning MediaWiki is only starting to use the DI approach Much of the code still relies on global state or direct resulting in a highly cyclical dependency which acts as the top level factory for services in MediaWiki which can be used to gain access to default instances of various services MediaWikiServices however also allows new services to be defined and default services to be redefined Services are defined or redefined by providing a callback the instantiator that will return a new instance of the service When it will create an instance of MediaWikiServices and populate it with the services defined in the files listed by thereby bootstrapping the DI framework Per $wgServiceWiringFiles lists includes ServiceWiring php
Definition: injection.txt:35
you have access to all of the normal MediaWiki so you can get a DB use the etc For full docs on the Maintenance class
Definition: maintenance.txt:52
const EDIT_NEW
Definition: Defines.php:152
testListPagesByPrefix()
PageArchive::listPagesBySearch.
$revQuery
testGetArchivedRevision()
PageArchive::getRevision.
RevisionRecord $ipRev
Revision of the IP edit (the second edit)
Used to show archived pages and eventually restore them.
Definition: PageArchive.php:32
Allows to change the fields on the form that will be generated $name
Definition: hooks.txt:271
testListPagesBySearch()
PageArchive::listPagesBySearch.
const DB_REPLICA
Definition: defines.php:25
const SCHEMA_COMPAT_OLD
Definition: Defines.php:290
static makeContent( $text, Title $title=null, $modelId=null, $format=null)
Convenience function for creating a Content object from a given textual representation.
$content
Definition: pageupdater.txt:72
Base class for tests of PageArchive against different database schemas.
static getTestUser( $groups=[])
Convenience method for getting an immutable test user.
testGetRevision()
PageArchive::getRevision.
return true to allow those checks to and false if checking is done & $user
Definition: hooks.txt:1473
static newFromText( $text, $defaultNamespace=NS_MAIN)
Create a new Title from text, such as what one would find in a link.
Definition: Title.php:319