416 lines
12 KiB
PHP
416 lines
12 KiB
PHP
<?php
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namespace MediaWiki\Tests\Maintenance;
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use ContentHandler;
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use ExecutableFinder;
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use MediaWikiLangTestCase;
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use Page;
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use User;
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use XMLReader;
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/**
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* Base TestCase for dumps
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*/
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abstract class DumpTestCase extends MediaWikiLangTestCase {
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/**
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* exception to be rethrown once in sound PHPUnit surrounding
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*
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* As the current MediaWikiTestCase::run is not robust enough to recover
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* from thrown exceptions directly, we cannot throw frow within
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* self::addDBData, although it would be appropriate. Hence, we catch the
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* exception and store it until we are in setUp and may finally rethrow
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* the exception without crashing the test suite.
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*
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* @var Exception|null
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*/
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protected $exceptionFromAddDBData = null;
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/**
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* Holds the XMLReader used for analyzing an XML dump
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*
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* @var XMLReader|null
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*/
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protected $xml = null;
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/** @var bool|null Whether the 'gzip' utility is available */
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protected static $hasGzip = null;
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/**
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* Skip the test if 'gzip' is not in $PATH.
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*
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* @return bool
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*/
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protected function checkHasGzip() {
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if ( self::$hasGzip === null ) {
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self::$hasGzip = ( ExecutableFinder::findInDefaultPaths( 'gzip' ) !== false );
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}
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if ( !self::$hasGzip ) {
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$this->markTestSkipped( "Skip test, requires the gzip utility in PATH" );
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}
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return self::$hasGzip;
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}
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/**
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* Adds a revision to a page, while returning the resuting revision's id
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*
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* @param Page $page Page to add the revision to
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* @param string $text Revisions text
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* @param string $summary Revisions summary
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* @param string $model The model ID (defaults to wikitext)
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*
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* @throws MWException
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* @return array
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*/
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protected function addRevision( Page $page, $text, $summary, $model = CONTENT_MODEL_WIKITEXT ) {
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$status = $page->doEditContent(
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ContentHandler::makeContent( $text, $page->getTitle(), $model ),
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$summary
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);
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if ( $status->isGood() ) {
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$value = $status->getValue();
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$revision = $value['revision'];
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$revision_id = $revision->getId();
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$text_id = $revision->getTextId();
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if ( ( $revision_id > 0 ) && ( $text_id > 0 ) ) {
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return [ $revision_id, $text_id ];
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}
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}
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throw new MWException( "Could not determine revision id ("
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. $status->getWikiText( false, false, 'en' ) . ")" );
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}
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/**
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* gunzips the given file and stores the result in the original file name
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*
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* @param string $fname Filename to read the gzipped data from and stored
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* the gunzipped data into
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*/
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protected function gunzip( $fname ) {
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$gzipped_contents = file_get_contents( $fname );
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if ( $gzipped_contents === false ) {
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$this->fail( "Could not get contents of $fname" );
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}
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$contents = gzdecode( $gzipped_contents );
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$this->assertEquals(
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strlen( $contents ),
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file_put_contents( $fname, $contents ),
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'# bytes written'
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);
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}
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/**
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* Default set up function.
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*
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* Clears $wgUser, and reports errors from addDBData to PHPUnit
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*/
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protected function setUp() {
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parent::setUp();
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// Check if any Exception is stored for rethrowing from addDBData
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// @see self::exceptionFromAddDBData
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if ( $this->exceptionFromAddDBData !== null ) {
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throw $this->exceptionFromAddDBData;
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}
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$this->setMwGlobals( 'wgUser', new User() );
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}
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/**
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* Checks for test output consisting only of lines containing ETA announcements
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*/
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function expectETAOutput() {
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// Newer PHPUnits require assertion about the output using PHPUnit's own
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// expectOutput[...] functions. However, the PHPUnit shipped prediactes
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// do not allow to check /each/ line of the output using /readable/ REs.
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// So we ...
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// 1. ... add a dummy output checking to make PHPUnit not complain
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// about unchecked test output
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$this->expectOutputRegex( '//' );
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// 2. Do the real output checking on our own.
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$lines = explode( "\n", $this->getActualOutput() );
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$this->assertGreaterThan( 1, count( $lines ), "Minimal lines of produced output" );
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$this->assertEquals( '', array_pop( $lines ), "Output ends in LF" );
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$timestamp_re = "[0-9]{4}-[01][0-9]-[0-3][0-9] [0-2][0-9]:[0-5][0-9]:[0-6][0-9]";
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foreach ( $lines as $line ) {
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$this->assertRegExp(
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"/$timestamp_re: .* \(ID [0-9]+\) [0-9]* pages .*, [0-9]* revs .*, ETA/",
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$line
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);
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}
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}
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/**
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* Step the current XML reader until node end of given name is found.
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*
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* @param string $name Name of the closing element to look for
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* (e.g.: "mediawiki" when looking for </mediawiki>)
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*
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* @return bool True if the end node could be found. false otherwise.
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*/
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protected function skipToNodeEnd( $name ) {
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while ( $this->xml->read() ) {
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if ( $this->xml->nodeType == XMLReader::END_ELEMENT &&
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$this->xml->name == $name
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) {
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return true;
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}
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}
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return false;
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}
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/**
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* Step the current XML reader to the first element start after the node
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* end of a given name.
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*
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* @param string $name Name of the closing element to look for
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* (e.g.: "mediawiki" when looking for </mediawiki>)
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*
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* @return bool True if new element after the closing of $name could be
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* found. false otherwise.
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*/
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protected function skipPastNodeEnd( $name ) {
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$this->assertTrue( $this->skipToNodeEnd( $name ),
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"Skipping to end of $name" );
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while ( $this->xml->read() ) {
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if ( $this->xml->nodeType == XMLReader::ELEMENT ) {
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return true;
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}
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}
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return false;
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}
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/**
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* Opens an XML file to analyze and optionally skips past siteinfo.
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*
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* @param string $fname Name of file to analyze
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* @param bool $skip_siteinfo (optional) If true, step the xml reader
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* to the first element after </siteinfo>
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*/
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protected function assertDumpStart( $fname, $skip_siteinfo = true ) {
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$this->xml = new XMLReader();
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$this->assertTrue( $this->xml->open( $fname ),
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"Opening temporary file $fname via XMLReader failed" );
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if ( $skip_siteinfo ) {
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$this->assertTrue( $this->skipPastNodeEnd( "siteinfo" ),
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"Skipping past end of siteinfo" );
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}
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}
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/**
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* Asserts that the xml reader is at the final closing tag of an xml file and
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* closes the reader.
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*
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* @param string $name (optional) the name of the final tag
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* (e.g.: "mediawiki" for </mediawiki>)
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*/
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protected function assertDumpEnd( $name = "mediawiki" ) {
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$this->assertNodeEnd( $name, false );
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if ( $this->xml->read() ) {
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$this->skipWhitespace();
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}
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$this->assertEquals( $this->xml->nodeType, XMLReader::NONE,
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"No proper entity left to parse" );
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$this->xml->close();
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}
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/**
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* Steps the xml reader over white space
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*/
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protected function skipWhitespace() {
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$cont = true;
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while ( $cont && ( ( $this->xml->nodeType == XMLReader::WHITESPACE )
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|| ( $this->xml->nodeType == XMLReader::SIGNIFICANT_WHITESPACE ) ) ) {
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$cont = $this->xml->read();
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}
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}
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/**
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* Asserts that the xml reader is at an element of given name, and optionally
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* skips past it.
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*
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* @param string $name The name of the element to check for
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* (e.g.: "mediawiki" for <mediawiki>)
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* @param bool $skip (optional) if true, skip past the found element
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*/
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protected function assertNodeStart( $name, $skip = true ) {
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$this->assertEquals( $name, $this->xml->name, "Node name" );
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$this->assertEquals( XMLReader::ELEMENT, $this->xml->nodeType, "Node type" );
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if ( $skip ) {
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$this->assertTrue( $this->xml->read(), "Skipping past start tag" );
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}
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}
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/**
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* Asserts that the xml reader is at an closing element of given name, and optionally
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* skips past it.
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*
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* @param string $name The name of the closing element to check for
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* (e.g.: "mediawiki" for </mediawiki>)
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* @param bool $skip (optional) if true, skip past the found element
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*/
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protected function assertNodeEnd( $name, $skip = true ) {
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$this->assertEquals( $name, $this->xml->name, "Node name" );
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$this->assertEquals( XMLReader::END_ELEMENT, $this->xml->nodeType, "Node type" );
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if ( $skip ) {
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$this->assertTrue( $this->xml->read(), "Skipping past end tag" );
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}
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}
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/**
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* Asserts that the xml reader is at an element of given tag that contains a given text,
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* and skips over the element.
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*
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* @param string $name The name of the element to check for
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* (e.g.: "mediawiki" for <mediawiki>...</mediawiki>)
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* @param string|bool $text If string, check if it equals the elements text.
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* If false, ignore the element's text
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* @param bool $skip_ws (optional) if true, skip past white spaces that trail the
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* closing element.
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*/
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protected function assertTextNode( $name, $text, $skip_ws = true ) {
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$this->assertNodeStart( $name );
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if ( $text !== false ) {
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$this->assertEquals( $text, $this->xml->value, "Text of node " . $name );
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}
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$this->assertTrue( $this->xml->read(), "Skipping past processed text of " . $name );
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$this->assertNodeEnd( $name );
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if ( $skip_ws ) {
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$this->skipWhitespace();
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}
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}
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/**
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* Asserts that the xml reader is at the start of a page element and skips over the first
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* tags, after checking them.
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*
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* Besides the opening page element, this function also checks for and skips over the
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* title, ns, and id tags. Hence after this function, the xml reader is at the first
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* revision of the current page.
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*
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* @param int $id Id of the page to assert
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* @param int $ns Number of namespage to assert
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* @param string $name Title of the current page
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*/
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protected function assertPageStart( $id, $ns, $name ) {
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$this->assertNodeStart( "page" );
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$this->skipWhitespace();
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$this->assertTextNode( "title", $name );
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$this->assertTextNode( "ns", $ns );
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$this->assertTextNode( "id", $id );
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}
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/**
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* Asserts that the xml reader is at the page's closing element and skips to the next
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* element.
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*/
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protected function assertPageEnd() {
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$this->assertNodeEnd( "page" );
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$this->skipWhitespace();
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}
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/**
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* Asserts that the xml reader is at a revision and checks its representation before
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* skipping over it.
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*
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* @param int $id Id of the revision
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* @param string $summary Summary of the revision
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* @param int $text_id Id of the revision's text
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* @param int $text_bytes Number of bytes in the revision's text
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* @param string $text_sha1 The base36 SHA-1 of the revision's text
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* @param string|bool $text (optional) The revision's string, or false to check for a
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* revision stub
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* @param int|bool $parentid (optional) id of the parent revision
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* @param string $model The expected content model id (default: CONTENT_MODEL_WIKITEXT)
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* @param string $format The expected format model id (default: CONTENT_FORMAT_WIKITEXT)
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*/
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protected function assertRevision( $id, $summary, $text_id, $text_bytes,
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$text_sha1, $text = false, $parentid = false,
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$model = CONTENT_MODEL_WIKITEXT, $format = CONTENT_FORMAT_WIKITEXT
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) {
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$this->assertNodeStart( "revision" );
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$this->skipWhitespace();
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$this->assertTextNode( "id", $id );
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if ( $parentid !== false ) {
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$this->assertTextNode( "parentid", $parentid );
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}
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$this->assertTextNode( "timestamp", false );
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$this->assertNodeStart( "contributor" );
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$this->skipWhitespace();
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$this->assertTextNode( "ip", false );
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$this->assertNodeEnd( "contributor" );
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$this->skipWhitespace();
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$this->assertTextNode( "comment", $summary );
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$this->skipWhitespace();
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$this->assertTextNode( "model", $model );
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$this->skipWhitespace();
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$this->assertTextNode( "format", $format );
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$this->skipWhitespace();
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if ( $this->xml->name == "text" ) {
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// note: <text> tag may occur here or at the very end.
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$text_found = true;
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$this->assertText( $id, $text_id, $text_bytes, $text );
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} else {
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$text_found = false;
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}
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$this->assertTextNode( "sha1", $text_sha1 );
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if ( !$text_found ) {
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$this->assertText( $id, $text_id, $text_bytes, $text );
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}
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$this->assertNodeEnd( "revision" );
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$this->skipWhitespace();
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}
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protected function assertText( $id, $text_id, $text_bytes, $text ) {
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$this->assertNodeStart( "text", false );
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if ( $text_bytes !== false ) {
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$this->assertEquals( $this->xml->getAttribute( "bytes" ), $text_bytes,
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"Attribute 'bytes' of revision " . $id );
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}
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if ( $text === false ) {
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// Testing for a stub
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$this->assertEquals( $this->xml->getAttribute( "id" ), $text_id,
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"Text id of revision " . $id );
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$this->assertFalse( $this->xml->hasValue, "Revision has text" );
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$this->assertTrue( $this->xml->read(), "Skipping text start tag" );
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if ( ( $this->xml->nodeType == XMLReader::END_ELEMENT )
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&& ( $this->xml->name == "text" )
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) {
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$this->xml->read();
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}
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$this->skipWhitespace();
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} else {
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// Testing for a real dump
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$this->assertTrue( $this->xml->read(), "Skipping text start tag" );
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$this->assertEquals( $text, $this->xml->value, "Text of revision " . $id );
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$this->assertTrue( $this->xml->read(), "Skipping past text" );
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$this->assertNodeEnd( "text" );
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$this->skipWhitespace();
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}
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}
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}
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