SqlBlobStoreTest.php

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<?php
 
namespace MediaWiki\Tests\Storage;
 
use InvalidArgumentException;
use Language;
use MediaWiki\MediaWikiServices;
use MediaWiki\Storage\SqlBlobStore;
use MediaWikiTestCase;
use stdClass;
use TitleValue;
 
class SqlBlobStoreTest extends MediaWikiTestCase {
 
    public function getBlobStore( $legacyEncoding = false, $compressRevisions = false ) {
        $services = MediaWikiServices::getInstance();
 
        $store = new SqlBlobStore(
            $services->getDBLoadBalancer(),
            $services->getMainWANObjectCache()
        );
 
        if ( $compressRevisions ) {
            $store->setCompressBlobs( $compressRevisions );
        }
        if ( $legacyEncoding ) {
            $store->setLegacyEncoding( $legacyEncoding, Language::factory( 'en' ) );
        }
 
        return $store;
    }
 
    public function testGetSetCompressRevisions() {
        $store = $this->getBlobStore();
        $this->assertFalse( $store->getCompressBlobs() );
        $store->setCompressBlobs( true );
        $this->assertTrue( $store->getCompressBlobs() );
    }
 
    public function testGetSetLegacyEncoding() {
        $store = $this->getBlobStore();
        $this->assertFalse( $store->getLegacyEncoding() );
        $this->assertNull( $store->getLegacyEncodingConversionLang() );
        $en = Language::factory( 'en' );
        $store->setLegacyEncoding( 'foo', $en );
        $this->assertSame( 'foo', $store->getLegacyEncoding() );
        $this->assertSame( $en, $store->getLegacyEncodingConversionLang() );
    }
 
    public function testGetSetCacheExpiry() {
        $store = $this->getBlobStore();
        $this->assertSame( 604800, $store->getCacheExpiry() );
        $store->setCacheExpiry( 12 );
        $this->assertSame( 12, $store->getCacheExpiry() );
    }
 
    public function testGetSetUseExternalStore() {
        $store = $this->getBlobStore();
        $this->assertFalse( $store->getUseExternalStore() );
        $store->setUseExternalStore( true );
        $this->assertTrue( $store->getUseExternalStore() );
    }
 
    public function provideDecompress() {
        yield '(no legacy encoding), empty in empty out' => [ false, '', [], '' ];
        yield '(no legacy encoding), empty in empty out' => [ false, 'A', [], 'A' ];
        yield '(no legacy encoding), error flag -> false' => [ false, 'X', [ 'error' ], false ];
        yield '(no legacy encoding), string in with gzip flag returns string' => [
            // gzip string below generated with gzdeflate( 'AAAABBAAA' )
            false, "sttttr\002\022\000", [ 'gzip' ], 'AAAABBAAA',
        ];
        yield '(no legacy encoding), string in with object flag returns false' => [
            // gzip string below generated with serialize( 'JOJO' )
            false, "s:4:\"JOJO\";", [ 'object' ], false,
        ];
        yield '(no legacy encoding), serialized object in with object flag returns string' => [
            false,
            // Using a TitleValue object as it has a getText method (which is needed)
            serialize( new TitleValue( 0, 'HHJJDDFF' ) ),
            [ 'object' ],
            'HHJJDDFF',
        ];
        yield '(no legacy encoding), serialized object in with object & gzip flag returns string' => [
            false,
            // Using a TitleValue object as it has a getText method (which is needed)
            gzdeflate( serialize( new TitleValue( 0, '8219JJJ840' ) ) ),
            [ 'object', 'gzip' ],
            '8219JJJ840',
        ];
        yield '(ISO-8859-1 encoding), string in string out' => [
            'ISO-8859-1',
            iconv( 'utf-8', 'ISO-8859-1', "1®Àþ1" ),
            [],
            '1®Àþ1',
        ];
        yield '(ISO-8859-1 encoding), serialized object in with gzip flags returns string' => [
            'ISO-8859-1',
            gzdeflate( iconv( 'utf-8', 'ISO-8859-1', "4®Àþ4" ) ),
            [ 'gzip' ],
            '4®Àþ4',
        ];
        yield '(ISO-8859-1 encoding), serialized object in with object flags returns string' => [
            'ISO-8859-1',
            serialize( new TitleValue( 0, iconv( 'utf-8', 'ISO-8859-1', "3®Àþ3" ) ) ),
            [ 'object' ],
            '3®Àþ3',
        ];
        yield '(ISO-8859-1 encoding), serialized object in with object & gzip flags returns string' => [
            'ISO-8859-1',
            gzdeflate( serialize( new TitleValue( 0, iconv( 'utf-8', 'ISO-8859-1', "2®Àþ2" ) ) ) ),
            [ 'gzip', 'object' ],
            '2®Àþ2',
        ];
        yield 'T184749 (windows-1252 encoding), string in string out' => [
            'windows-1252',
            iconv( 'utf-8', 'windows-1252', "sammansättningar" ),
            [],
            'sammansättningar',
        ];
        yield 'T184749 (windows-1252 encoding), string in string out with gzip' => [
            'windows-1252',
            gzdeflate( iconv( 'utf-8', 'windows-1252', "sammansättningar" ) ),
            [ 'gzip' ],
            'sammansättningar',
        ];
    }
 
    public function testDecompressData( $legacyEncoding, $data, $flags, $expected ) {
        $store = $this->getBlobStore( $legacyEncoding );
        $this->assertSame(
            $expected,
            $store->decompressData( $data, $flags )
        );
    }
 
    public function testDecompressData_InvalidArgumentException() {
        $store = $this->getBlobStore();
 
        $this->setExpectedException( InvalidArgumentException::class );
        $store->decompressData( false, [] );
    }
 
    public function testCompressRevisionTextUtf8() {
        $store = $this->getBlobStore();
        $row = new stdClass;
        $row->old_text = "Wiki est l'\xc3\xa9cole superieur !";
        $row->old_flags = $store->compressData( $row->old_text );
        $this->assertTrue( false !== strpos( $row->old_flags, 'utf-8' ),
            "Flags should contain 'utf-8'" );
        $this->assertFalse( false !== strpos( $row->old_flags, 'gzip' ),
            "Flags should not contain 'gzip'" );
        $this->assertEquals( "Wiki est l'\xc3\xa9cole superieur !",
            $row->old_text, "Direct check" );
    }
 
    public function testCompressRevisionTextUtf8Gzip() {
        $store = $this->getBlobStore( false, true );
        $this->checkPHPExtension( 'zlib' );
 
        $row = new stdClass;
        $row->old_text = "Wiki est l'\xc3\xa9cole superieur !";
        $row->old_flags = $store->compressData( $row->old_text );
        $this->assertTrue( false !== strpos( $row->old_flags, 'utf-8' ),
            "Flags should contain 'utf-8'" );
        $this->assertTrue( false !== strpos( $row->old_flags, 'gzip' ),
            "Flags should contain 'gzip'" );
        $this->assertEquals( "Wiki est l'\xc3\xa9cole superieur !",
            gzinflate( $row->old_text ), "Direct check" );
    }
 
    public function provideBlobs() {
        yield [ '' ];
        yield [ 'someText' ];
        yield [ "sammansättningar" ];
    }
 
    public function testSimpleStoreGetBlobSimpleRoundtrip( $blob ) {
        $store = $this->getBlobStore();
        $address = $store->storeBlob( $blob );
        $this->assertSame( $blob, $store->getBlob( $address ) );
    }
 
    public function testSimpleStoreGetBlobSimpleRoundtripWindowsLegacyEncoding( $blob ) {
        $store = $this->getBlobStore( 'windows-1252' );
        $address = $store->storeBlob( $blob );
        $this->assertSame( $blob, $store->getBlob( $address ) );
    }
 
    public function testSimpleStoreGetBlobSimpleRoundtripWindowsLegacyEncodingGzip( $blob ) {
        // FIXME: fails under postgres
        $this->markTestSkippedIfDbType( 'postgres' );
        $store = $this->getBlobStore( 'windows-1252', true );
        $address = $store->storeBlob( $blob );
        $this->assertSame( $blob, $store->getBlob( $address ) );
    }
 
    public function provideGetTextIdFromAddress() {
        yield [ 'tt:17', 17 ];
        yield [ 'xy:17', null ];
        yield [ 'xy:xyzzy', null ];
    }
 
    public function testGetTextIdFromAddress( $address, $textId ) {
        $store = $this->getBlobStore();
        $this->assertSame( $textId, $store->getTextIdFromAddress( $address ) );
    }
 
    public function provideGetTextIdFromAddressInvalidArgumentException() {
        yield [ 'tt:-17' ];
        yield [ 'tt:xy' ];
        yield [ 'tt:0' ];
        yield [ 'tt:' ];
        yield [ 'xy' ];
        yield [ '' ];
    }
 
    public function testGetTextIdFromAddressInvalidArgumentException( $address ) {
        $this->setExpectedException( InvalidArgumentException::class );
        $store = $this->getBlobStore();
        $store->getTextIdFromAddress( $address );
    }
 
    public function testMakeAddressFromTextId() {
        $this->assertSame( 'tt:17', SqlBlobStore::makeAddressFromTextId( 17 ) );
    }
 
}