DatabaseSqliteTest.php

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<?php

class MockDatabaseSqlite extends DatabaseSqliteStandalone {
        var $lastQuery;

        function __construct() {
                parent::__construct( ':memory:' );
        }

        function query( $sql, $fname = '', $tempIgnore = false ) {
                $this->lastQuery = $sql;
                return true;
        }

        public function replaceVars( $s ) {
                return parent::replaceVars( $s );
        }
}

class DatabaseSqliteTest extends MediaWikiTestCase {
        var $db;

        protected function setUp() {
                parent::setUp();

                if ( !Sqlite::isPresent() ) {
                        $this->markTestSkipped( 'No SQLite support detected' );
                }
                $this->db = new MockDatabaseSqlite();
                if ( version_compare( $this->db->getServerVersion(), '3.6.0', '<' ) ) {
                        $this->markTestSkipped( "SQLite at least 3.6 required, {$this->db->getServerVersion()} found" );
                }
        }

        private function replaceVars( $sql ) {
                // normalize spacing to hide implementation details
                return preg_replace( '/\s+/', ' ', $this->db->replaceVars( $sql ) );
        }

        private function assertResultIs( $expected, $res ) {
                $this->assertNotNull( $res );
                $i = 0;
                foreach ( $res as $row ) {
                        foreach ( $expected[$i] as $key => $value ) {
                                $this->assertTrue( isset( $row->$key ) );
                                $this->assertEquals( $value, $row->$key );
                        }
                        $i++;
                }
                $this->assertEquals( count( $expected ), $i, 'Unexpected number of rows' );
        }

        public static function provideAddQuotes() {
                return array(
                        array( // #0: empty
                                '', "''"
                        ),
                        array( // #1: simple
                                'foo bar', "'foo bar'"
                        ),
                        array( // #2: including quote
                                'foo\'bar', "'foo''bar'"
                        ),
                        array( // #3: including \0 (must be represented as hex, per https://bugs.php.net/bug.php?id=63419)
                                "x\0y",
                                "x'780079'",
                        ),
                        array( // #4: blob object (must be represented as hex)
                                new Blob( "hello" ),
                                "x'68656c6c6f'",
                        ),
                );
        }

        public function testAddQuotes( $value, $expected ) {
                // check quoting
                $db = new DatabaseSqliteStandalone( ':memory:' );
                $this->assertEquals( $expected, $db->addQuotes( $value ), 'string not quoted as expected' );

                // ok, quoting works as expected, now try a round trip.
                $re = $db->query( 'select ' . $db->addQuotes( $value ) );

                $this->assertTrue( $re !== false, 'query failed' );

                if ( $row = $re->fetchRow() ) {
                        if ( $value instanceof Blob ) {
                                $value = $value->fetch();
                        }

                        $this->assertEquals( $value, $row[0], 'string mangled by the database' );
                } else {
                        $this->fail( 'query returned no result' );
                }
        }

        public function testReplaceVars() {
                $this->assertEquals( 'foo', $this->replaceVars( 'foo' ), "Don't break anything accidentally" );

                $this->assertEquals( "CREATE TABLE /**/foo (foo_key INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT, "
                                . "foo_bar TEXT, foo_name TEXT NOT NULL DEFAULT '', foo_int INTEGER, foo_int2 INTEGER );",
                        $this->replaceVars( "CREATE TABLE /**/foo (foo_key int unsigned NOT NULL PRIMARY KEY AUTO_INCREMENT,
                        foo_bar char(13), foo_name varchar(255) binary NOT NULL DEFAULT '', foo_int tinyint ( 8 ), foo_int2 int(16) ) ENGINE=MyISAM;" )
                );

                $this->assertEquals( "CREATE TABLE foo ( foo1 REAL, foo2 REAL, foo3 REAL );",
                        $this->replaceVars( "CREATE TABLE foo ( foo1 FLOAT, foo2 DOUBLE( 1,10), foo3 DOUBLE PRECISION );" )
                );

                $this->assertEquals( "CREATE TABLE foo ( foo_binary1 BLOB, foo_binary2 BLOB );",
                        $this->replaceVars( "CREATE TABLE foo ( foo_binary1 binary(16), foo_binary2 varbinary(32) );" )
                );

                $this->assertEquals( "CREATE TABLE text ( text_foo TEXT );",
                        $this->replaceVars( "CREATE TABLE text ( text_foo tinytext );" ),
                        'Table name changed'
                );

                $this->assertEquals( "CREATE TABLE foo ( foobar INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL );",
                        $this->replaceVars( "CREATE TABLE foo ( foobar INT PRIMARY KEY NOT NULL AUTO_INCREMENT );" )
                );
                $this->assertEquals( "CREATE TABLE foo ( foobar INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL );",
                        $this->replaceVars( "CREATE TABLE foo ( foobar INT PRIMARY KEY AUTO_INCREMENT NOT NULL );" )
                );

                $this->assertEquals( "CREATE TABLE enums( enum1 TEXT, myenum TEXT)",
                        $this->replaceVars( "CREATE TABLE enums( enum1 ENUM('A', 'B'), myenum ENUM ('X', 'Y'))" )
                );

                $this->assertEquals( "ALTER TABLE foo ADD COLUMN foo_bar INTEGER DEFAULT 42",
                        $this->replaceVars( "ALTER TABLE foo\nADD COLUMN foo_bar int(10) unsigned DEFAULT 42" )
                );
        }

        public function testTableName() {
                // @todo Moar!
                $db = new DatabaseSqliteStandalone( ':memory:' );
                $this->assertEquals( 'foo', $db->tableName( 'foo' ) );
                $this->assertEquals( 'sqlite_master', $db->tableName( 'sqlite_master' ) );
                $db->tablePrefix( 'foo' );
                $this->assertEquals( 'sqlite_master', $db->tableName( 'sqlite_master' ) );
                $this->assertEquals( 'foobar', $db->tableName( 'bar' ) );
        }

        public function testDuplicateTableStructure() {
                $db = new DatabaseSqliteStandalone( ':memory:' );
                $db->query( 'CREATE TABLE foo(foo, barfoo)' );

                $db->duplicateTableStructure( 'foo', 'bar' );
                $this->assertEquals( 'CREATE TABLE "bar"(foo, barfoo)',
                        $db->selectField( 'sqlite_master', 'sql', array( 'name' => 'bar' ) ),
                        'Normal table duplication'
                );

                $db->duplicateTableStructure( 'foo', 'baz', true );
                $this->assertEquals( 'CREATE TABLE "baz"(foo, barfoo)',
                        $db->selectField( 'sqlite_temp_master', 'sql', array( 'name' => 'baz' ) ),
                        'Creation of temporary duplicate'
                );
                $this->assertEquals( 0,
                        $db->selectField( 'sqlite_master', 'COUNT(*)', array( 'name' => 'baz' ) ),
                        'Create a temporary duplicate only'
                );
        }

        public function testDuplicateTableStructureVirtual() {
                $db = new DatabaseSqliteStandalone( ':memory:' );
                if ( $db->getFulltextSearchModule() != 'FTS3' ) {
                        $this->markTestSkipped( 'FTS3 not supported, cannot create virtual tables' );
                }
                $db->query( 'CREATE VIRTUAL TABLE "foo" USING FTS3(foobar)' );

                $db->duplicateTableStructure( 'foo', 'bar' );
                $this->assertEquals( 'CREATE VIRTUAL TABLE "bar" USING FTS3(foobar)',
                        $db->selectField( 'sqlite_master', 'sql', array( 'name' => 'bar' ) ),
                        'Duplication of virtual tables'
                );

                $db->duplicateTableStructure( 'foo', 'baz', true );
                $this->assertEquals( 'CREATE VIRTUAL TABLE "baz" USING FTS3(foobar)',
                        $db->selectField( 'sqlite_master', 'sql', array( 'name' => 'baz' ) ),
                        "Can't create temporary virtual tables, should fall back to non-temporary duplication"
                );
        }

        public function testDeleteJoin() {
                $db = new DatabaseSqliteStandalone( ':memory:' );
                $db->query( 'CREATE TABLE a (a_1)', __METHOD__ );
                $db->query( 'CREATE TABLE b (b_1, b_2)', __METHOD__ );
                $db->insert( 'a', array(
                                array( 'a_1' => 1 ),
                                array( 'a_1' => 2 ),
                                array( 'a_1' => 3 ),
                        ),
                        __METHOD__
                );
                $db->insert( 'b', array(
                                array( 'b_1' => 2, 'b_2' => 'a' ),
                                array( 'b_1' => 3, 'b_2' => 'b' ),
                        ),
                        __METHOD__
                );
                $db->deleteJoin( 'a', 'b', 'a_1', 'b_1', array( 'b_2' => 'a' ), __METHOD__ );
                $res = $db->query( "SELECT * FROM a", __METHOD__ );
                $this->assertResultIs( array(
                                array( 'a_1' => 1 ),
                                array( 'a_1' => 3 ),
                        ),
                        $res
                );
        }

        public function testEntireSchema() {
                global $IP;

                $result = Sqlite::checkSqlSyntax( "$IP/maintenance/tables.sql" );
                if ( $result !== true ) {
                        $this->fail( $result );
                }
                $this->assertTrue( true ); // avoid test being marked as incomplete due to lack of assertions
        }

        public function testUpgrades() {
                global $IP, $wgVersion, $wgProfileToDatabase;

                // Versions tested
                $versions = array(
                        //'1.13', disabled for now, was totally screwed up
                        // SQLite wasn't included in 1.14
                        '1.15',
                        '1.16',
                        '1.17',
                        '1.18',
                );

                // Mismatches for these columns we can safely ignore
                $ignoredColumns = array(
                        'user_newtalk.user_last_timestamp', // r84185
                );

                $currentDB = new DatabaseSqliteStandalone( ':memory:' );
                $currentDB->sourceFile( "$IP/maintenance/tables.sql" );
                if ( $wgProfileToDatabase ) {
                        $currentDB->sourceFile( "$IP/maintenance/sqlite/archives/patch-profiling.sql" );
                }
                $currentTables = $this->getTables( $currentDB );
                sort( $currentTables );

                foreach ( $versions as $version ) {
                        $versions = "upgrading from $version to $wgVersion";
                        $db = $this->prepareDB( $version );
                        $tables = $this->getTables( $db );
                        $this->assertEquals( $currentTables, $tables, "Different tables $versions" );
                        foreach ( $tables as $table ) {
                                $currentCols = $this->getColumns( $currentDB, $table );
                                $cols = $this->getColumns( $db, $table );
                                $this->assertEquals(
                                        array_keys( $currentCols ),
                                        array_keys( $cols ),
                                        "Mismatching columns for table \"$table\" $versions"
                                );
                                foreach ( $currentCols as $name => $column ) {
                                        $fullName = "$table.$name";
                                        $this->assertEquals(
                                                (bool)$column->pk,
                                                (bool)$cols[$name]->pk,
                                                "PRIMARY KEY status does not match for column $fullName $versions"
                                        );
                                        if ( !in_array( $fullName, $ignoredColumns ) ) {
                                                $this->assertEquals(
                                                        (bool)$column->notnull,
                                                        (bool)$cols[$name]->notnull,
                                                        "NOT NULL status does not match for column $fullName $versions"
                                                );
                                                $this->assertEquals(
                                                        $column->dflt_value,
                                                        $cols[$name]->dflt_value,
                                                        "Default values does not match for column $fullName $versions"
                                                );
                                        }
                                }
                                $currentIndexes = $this->getIndexes( $currentDB, $table );
                                $indexes = $this->getIndexes( $db, $table );
                                $this->assertEquals(
                                        array_keys( $currentIndexes ),
                                        array_keys( $indexes ),
                                        "mismatching indexes for table \"$table\" $versions"
                                );
                        }
                        $db->close();
                }
        }

        public function testInsertIdType() {
                $db = new DatabaseSqliteStandalone( ':memory:' );
                $this->assertInstanceOf( 'ResultWrapper',
                        $db->query( 'CREATE TABLE a ( a_1 )', __METHOD__ ), "Database creationg" );
                $this->assertTrue( $db->insert( 'a', array( 'a_1' => 10 ), __METHOD__ ),
                        "Insertion worked" );
                $this->assertEquals( "integer", gettype( $db->insertId() ), "Actual typecheck" );
                $this->assertTrue( $db->close(), "closing database" );
        }

        private function prepareDB( $version ) {
                static $maint = null;
                if ( $maint === null ) {
                        $maint = new FakeMaintenance();
                        $maint->loadParamsAndArgs( null, array( 'quiet' => 1 ) );
                }

                global $IP;
                $db = new DatabaseSqliteStandalone( ':memory:' );
                $db->sourceFile( "$IP/tests/phpunit/data/db/sqlite/tables-$version.sql" );
                $updater = DatabaseUpdater::newForDB( $db, false, $maint );
                $updater->doUpdates( array( 'core' ) );
                return $db;
        }

        private function getTables( $db ) {
                $list = array_flip( $db->listTables() );
                $excluded = array(
                        'math', // moved out of core in 1.18
                        'trackbacks', // removed from core in 1.19
                        'searchindex',
                        'searchindex_content',
                        'searchindex_segments',
                        'searchindex_segdir',
                        // FTS4 ready!!1
                        'searchindex_docsize',
                        'searchindex_stat',
                );
                foreach ( $excluded as $t ) {
                        unset( $list[$t] );
                }
                $list = array_flip( $list );
                sort( $list );
                return $list;
        }

        private function getColumns( $db, $table ) {
                $cols = array();
                $res = $db->query( "PRAGMA table_info($table)" );
                $this->assertNotNull( $res );
                foreach ( $res as $col ) {
                        $cols[$col->name] = $col;
                }
                ksort( $cols );
                return $cols;
        }

        private function getIndexes( $db, $table ) {
                $indexes = array();
                $res = $db->query( "PRAGMA index_list($table)" );
                $this->assertNotNull( $res );
                foreach ( $res as $index ) {
                        $res2 = $db->query( "PRAGMA index_info({$index->name})" );
                        $this->assertNotNull( $res2 );
                        $index->columns = array();
                        foreach ( $res2 as $col ) {
                                $index->columns[] = $col;
                        }
                        $indexes[$index->name] = $index;
                }
                ksort( $indexes );
                return $indexes;
        }

        function testCaseInsensitiveLike() {
                // TODO: Test this for all databases
                $db = new DatabaseSqliteStandalone( ':memory:' );
                $res = $db->query( 'SELECT "a" LIKE "A" AS a' );
                $row = $res->fetchRow();
                $this->assertFalse( (bool)$row['a'] );
        }
}