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<?php
namespace MediaWiki\Tests\Maintenance;
use CompareParserCache;
use MediaWiki\Page\PageIdentity;
use MediaWiki\Parser\ParserCache;
use MediaWiki\Parser\ParserOutput;
use MediaWiki\Title\Title;
/**
* @covers \CompareParserCache
* @group Database
* @author Dreamy Jazz
*/
class CompareParserCacheTest extends MaintenanceBaseTestCase {
protected function getMaintenanceClass() {
return CompareParserCache::class;
}
public function testExecuteWhenNoPages() {
$this->maintenance->setOption( 'namespace', 0 );
$this->maintenance->setOption( 'maxpages', 100 );
$this->maintenance->execute();
$this->expectOutputRegex( '/^Checked 0 pages; 0 had prior cache entries/' );
}
public function testExecuteWhenNoPagesInRelevantNamespace() {
// Create a page in any namespace other than NS_MAIN (0) to test namespace filter works as intended.
$this->getExistingTestPage( Title::newFromText( 'Template:Test' ) );
$this->testExecuteWhenNoPages();
}
private function setPageRandomForPage( PageIdentity $pageIdentity, int $pageRandomValue ) {
$this->getDb()->newUpdateQueryBuilder()
->update( 'page' )
->set( [ 'page_random' => $pageRandomValue ] )
->where( [ 'page_title' => $pageIdentity->getDBkey(), 'page_namespace' => $pageIdentity->getNamespace() ] )
->caller( __METHOD__ )
->execute();
}
public function testExecuteWhenPageIsRedirect() {
$title = Title::newFromText( 'Main Page' );
$this->editPage( $title, '#REDIRECT [[Test]]' );
$this->setPageRandomForPage( $title, 1 );
$this->testExecuteWhenNoPages();
}
public function testExecuteWhenNoParserCacheEntryExists() {
$page = $this->getExistingTestPage( Title::newFromText( 'Main Page' ) );
$this->setPageRandomForPage( $page, 1 );
// Add a hook that rejects all parser cache entries when they try to be fetched, so that our
// test page has no parser cache entry. This simulates that no cache entry is found for the page.
// It may not be called if no cache is created for the page.
$this->setTemporaryHook( 'RejectParserCacheValue', static function () {
return false;
} );
$this->maintenance->setOption( 'namespace', 0 );
$this->maintenance->setOption( 'maxpages', 1 );
$this->maintenance->execute();
$actualOutput = $this->getActualOutputForAssertion();
$this->assertStringContainsString( "No parser cache entry found for 'Main Page'", $actualOutput );
$this->assertStringContainsString( 'Checked 1 pages; 0 had prior cache entries', $actualOutput );
}
public function testExecuteWhenParserCacheHasDifference() {
$page = $this->getExistingTestPage( Title::newFromText( 'Main Page' ) );
$this->editPage( $page, 'abcdef' );
$this->setPageRandomForPage( $page, 1 );
// Mock ParserCache::get to return something other than abcdef to have a difference between page content
// and the parser cache content.
$mockParserOutput = $this->createMock( ParserOutput::class );
$mockParserOutput->method( 'getRawText' )
->willReturn( 'abc' );
$mockParserCache = $this->createMock( ParserCache::class );
$mockParserCache->method( 'get' )
->willReturnCallback( function ( $actualPage ) use ( $page, $mockParserOutput ) {
$this->assertTrue( $page->isSamePageAs( $actualPage ) );
return $mockParserOutput;
} );
$this->setService( 'ParserCache', $mockParserCache );
$this->maintenance->setOption( 'namespace', 0 );
$this->maintenance->setOption( 'maxpages', 1 );
$this->maintenance->execute();
$actualOutput = $this->getActualOutputForAssertion();
$this->assertStringContainsString( "Found cache entry found for 'Main Page'...differences found:", $actualOutput );
$this->assertStringContainsString( 'Checked 1 pages; 1 had prior cache entries', $actualOutput );
$this->assertStringContainsString( 'Pages with differences found: 1', $actualOutput );
}
public function testExecuteWhenParserCacheIsSame() {
$page = $this->getExistingTestPage( Title::newFromText( 'Main Page' ) );
$this->editPage( $page, 'abcdef' );
$this->setPageRandomForPage( $page, 1 );
$this->maintenance->setOption( 'namespace', 0 );
$this->maintenance->setOption( 'maxpages', 1 );
$this->maintenance->execute();
$actualOutput = $this->getActualOutputForAssertion();
$this->assertStringContainsString( "Found cache entry found for 'Main Page'...No differences found", $actualOutput );
$this->assertStringContainsString( 'Checked 1 pages; 1 had prior cache entries', $actualOutput );
}
}