Remove $wgDebugFunctionEntry, unused

[mediawiki.git] / tests / phpunit / includes / db / DatabaseMysqlBaseTest.php

<?php
/**
 * Holds tests for DatabaseMysqlBase MediaWiki class.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 * http://www.gnu.org/copyleft/gpl.html
 *
 * @file
 * @author Antoine Musso
 * @author Bryan Davis
 * @copyright © 2013 Antoine Musso
 * @copyright © 2013 Bryan Davis
 * @copyright © 2013 Wikimedia Foundation Inc.
 */

/**
 * Fake class around abstract class so we can call concrete methods.
 */
class FakeDatabaseMysqlBase extends DatabaseMysqlBase {
        // From DatabaseBase
        function __construct() {
        }

        protected function closeConnection() {
        }

        protected function doQuery( $sql ) {
        }

        // From DatabaseMysql
        protected function mysqlConnect( $realServer ) {
        }

        protected function mysqlSetCharset( $charset ) {
        }

        protected function mysqlFreeResult( $res ) {
        }

        protected function mysqlFetchObject( $res ) {
        }

        protected function mysqlFetchArray( $res ) {
        }

        protected function mysqlNumRows( $res ) {
        }

        protected function mysqlNumFields( $res ) {
        }

        protected function mysqlFieldName( $res, $n ) {
        }

        protected function mysqlFieldType( $res, $n ) {
        }

        protected function mysqlDataSeek( $res, $row ) {
        }

        protected function mysqlError( $conn = null ) {
        }

        protected function mysqlFetchField( $res, $n ) {
        }

        protected function mysqlPing() {
        }

        // From interface DatabaseType
        function insertId() {
        }

        function lastErrno() {
        }

        function affectedRows() {
        }

        function getServerVersion() {
        }
}

class DatabaseMysqlBaseTest extends MediaWikiTestCase {
        /**
         * @dataProvider provideDiapers
         * @covers DatabaseMysqlBase::addIdentifierQuotes
         */
        public function testAddIdentifierQuotes( $expected, $in ) {
                $db = new FakeDatabaseMysqlBase();
                $quoted = $db->addIdentifierQuotes( $in );
                $this->assertEquals( $expected, $quoted );
        }

        /**
         * Feeds testAddIdentifierQuotes
         *
         * Named per bug 20281 convention.
         */
        function provideDiapers() {
                return array(
                        // Format: expected, input
                        array( '``', '' ),

                        // Yeah I really hate loosely typed PHP idiocies nowadays
                        array( '``', null ),

                        // Dear codereviewer, guess what addIdentifierQuotes()
                        // will return with thoses:
                        array( '``', false ),
                        array( '`1`', true ),

                        // We never know what could happen
                        array( '`0`', 0 ),
                        array( '`1`', 1 ),

                        // Whatchout! Should probably use something more meaningful
                        array( "`'`", "'" ),  # single quote
                        array( '`"`', '"' ),  # double quote
                        array( '````', '`' ), # backtick
                        array( '`’`', '’' ),  # apostrophe (look at your encyclopedia)

                        // sneaky NUL bytes are lurking everywhere
                        array( '``', "\0" ),
                        array( '`xyzzy`', "\0x\0y\0z\0z\0y\0" ),

                        // unicode chars
                        array(
                                self::createUnicodeString( '`\u0001a\uFFFFb`' ),
                                self::createUnicodeString( '\u0001a\uFFFFb' )
                        ),
                        array(
                                self::createUnicodeString( '`\u0001\uFFFF`' ),
                                self::createUnicodeString( '\u0001\u0000\uFFFF\u0000' )
                        ),
                        array( '`☃`', '☃' ),
                        array( '`メインページ`', 'メインページ' ),
                        array( '`Басты_бет`', 'Басты_бет' ),

                        // Real world:
                        array( '`Alix`', 'Alix' ),  # while( ! $recovered ) { sleep(); }
                        array( '`Backtick: ```', 'Backtick: `' ),
                        array( '`This is a test`', 'This is a test' ),
                );
        }

        private static function createUnicodeString( $str ) {
                return json_decode( '"' . $str . '"' );
        }

        function getMockForViews() {
                $db = $this->getMockBuilder( 'DatabaseMysql' )
                        ->disableOriginalConstructor()
                        ->setMethods( array( 'fetchRow', 'query' ) )
                        ->getMock();

                $db->expects( $this->any() )
                        ->method( 'query' )
                        ->with( $this->anything() )
                        ->will(
                                $this->returnValue( null )
                        );

                $db->expects( $this->any() )
                        ->method( 'fetchRow' )
                        ->with( $this->anything() )
                        ->will( $this->onConsecutiveCalls(
                                array( 'Tables_in_' => 'view1' ),
                                array( 'Tables_in_' => 'view2' ),
                                array( 'Tables_in_' => 'myview' ),
                                false  # no more rows
                        ));
                return $db;
        }
        /**
         * @covers DatabaseMysqlBase::listViews
         */
        function testListviews() {
                $db = $this->getMockForViews();

                // The first call populate an internal cache of views
                $this->assertEquals( array( 'view1', 'view2', 'myview' ),
                        $db->listViews() );
                $this->assertEquals( array( 'view1', 'view2', 'myview' ),
                        $db->listViews() );

                // Prefix filtering
                $this->assertEquals( array( 'view1', 'view2' ),
                        $db->listViews( 'view' ) );
                $this->assertEquals( array( 'myview' ),
                        $db->listViews( 'my' ) );
                $this->assertEquals( array(),
                        $db->listViews( 'UNUSED_PREFIX' ) );
                $this->assertEquals( array( 'view1', 'view2', 'myview' ),
                        $db->listViews( '' ) );
        }

        /**
         * @covers DatabaseMysqlBase::isView
         * @dataProvider provideViewExistanceChecks
         */
        function testIsView( $isView, $viewName ) {
                $db = $this->getMockForViews();

                switch ( $isView ) {
                        case true:
                                $this->assertTrue( $db->isView( $viewName ),
                                        "$viewName should be considered a view" );
                        break;

                        case false:
                                $this->assertFalse( $db->isView( $viewName ),
                                        "$viewName has not been defined as a view" );
                        break;
                }

        }

        function provideViewExistanceChecks() {
                return array(
                        // format: whether it is a view, view name
                        array( true, 'view1' ),
                        array( true, 'view2' ),
                        array( true, 'myview' ),

                        array( false, 'user' ),

                        array( false, 'view10' ),
                        array( false, 'my' ),
                        array( false, 'OH_MY_GOD' ),  # they killed kenny!
                );
        }

}