tests/phpunit/includes/libs/rdbms/database/DatabaseMysqlBaseTest.php

   1 <?php
   2 /**
   3  * Holds tests for DatabaseMysqlBase class.
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License along
  16  * with this program; if not, write to the Free Software Foundation, Inc.,
  17  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  18  * http://www.gnu.org/copyleft/gpl.html
  19  *
  20  * @file
  21  * @author Antoine Musso
  22  * @copyright © 2013 Antoine Musso
  23  * @copyright © 2013 Wikimedia Foundation and contributors
  24  */
  25
  26 use Wikimedia\Rdbms\TransactionProfiler;
  27 use Wikimedia\Rdbms\DatabaseDomain;
  28 use Wikimedia\Rdbms\MySQLMasterPos;
  29 use Wikimedia\Rdbms\DatabaseMysqlBase;
  30
  31 /**
  32  * Fake class around abstract class so we can call concrete methods.
  33  */
  34 class FakeDatabaseMysqlBase extends DatabaseMysqlBase {
  35         // From Database
  36         function __construct() {
  37                 $this->profiler = new ProfilerStub( [] );
  38                 $this->trxProfiler = new TransactionProfiler();
  39                 $this->cliMode = true;
  40                 $this->connLogger = new \Psr\Log\NullLogger();
  41                 $this->queryLogger = new \Psr\Log\NullLogger();
  42                 $this->errorLogger = function ( Exception $e ) {
  43                         wfWarn( get_class( $e ) . ": {$e->getMessage()}" );
  44                 };
  45                 $this->currentDomain = DatabaseDomain::newUnspecified();
  46         }
  47
  48         protected function closeConnection() {
  49         }
  50
  51         protected function doQuery( $sql ) {
  52         }
  53
  54         // From DatabaseMysql
  55         protected function mysqlConnect( $realServer ) {
  56         }
  57
  58         protected function mysqlSetCharset( $charset ) {
  59         }
  60
  61         protected function mysqlFreeResult( $res ) {
  62         }
  63
  64         protected function mysqlFetchObject( $res ) {
  65         }
  66
  67         protected function mysqlFetchArray( $res ) {
  68         }
  69
  70         protected function mysqlNumRows( $res ) {
  71         }
  72
  73         protected function mysqlNumFields( $res ) {
  74         }
  75
  76         protected function mysqlFieldName( $res, $n ) {
  77         }
  78
  79         protected function mysqlFieldType( $res, $n ) {
  80         }
  81
  82         protected function mysqlDataSeek( $res, $row ) {
  83         }
  84
  85         protected function mysqlError( $conn = null ) {
  86         }
  87
  88         protected function mysqlFetchField( $res, $n ) {
  89         }
  90
  91         protected function mysqlRealEscapeString( $s ) {
  92         }
  93
  94         function insertId() {
  95         }
  96
  97         function lastErrno() {
  98         }
  99
 100         function affectedRows() {
 101         }
 102
 103         function getServerVersion() {
 104         }
 105 }
 106
 107 class DatabaseMysqlBaseTest extends PHPUnit_Framework_TestCase {
 108         /**
 109          * @dataProvider provideDiapers
 110          * @covers Wikimedia\Rdbms\DatabaseMysqlBase::addIdentifierQuotes
 111          */
 112         public function testAddIdentifierQuotes( $expected, $in ) {
 113                 $db = new FakeDatabaseMysqlBase();
 114                 $quoted = $db->addIdentifierQuotes( $in );
 115                 $this->assertEquals( $expected, $quoted );
 116         }
 117
 118         /**
 119          * Feeds testAddIdentifierQuotes
 120          *
 121          * Named per T22281 convention.
 122          */
 123         public static function provideDiapers() {
 124                 return [
 125                         // Format: expected, input
 126                         [ '``', '' ],
 127
 128                         // Yeah I really hate loosely typed PHP idiocies nowadays
 129                         [ '``', null ],
 130
 131                         // Dear codereviewer, guess what addIdentifierQuotes()
 132                         // will return with thoses:
 133                         [ '``', false ],
 134                         [ '`1`', true ],
 135
 136                         // We never know what could happen
 137                         [ '`0`', 0 ],
 138                         [ '`1`', 1 ],
 139
 140                         // Whatchout! Should probably use something more meaningful
 141                         [ "`'`", "'" ],  # single quote
 142                         [ '`"`', '"' ],  # double quote
 143                         [ '````', '`' ], # backtick
 144                         [ '`’`', '’' ],  # apostrophe (look at your encyclopedia)
 145
 146                         // sneaky NUL bytes are lurking everywhere
 147                         [ '``', "\0" ],
 148                         [ '`xyzzy`', "\0x\0y\0z\0z\0y\0" ],
 149
 150                         // unicode chars
 151                         [
 152                                 self::createUnicodeString( '`\u0001a\uFFFFb`' ),
 153                                 self::createUnicodeString( '\u0001a\uFFFFb' )
 154                         ],
 155                         [
 156                                 self::createUnicodeString( '`\u0001\uFFFF`' ),
 157                                 self::createUnicodeString( '\u0001\u0000\uFFFF\u0000' )
 158                         ],
 159                         [ '`☃`', '☃' ],
 160                         [ '`メインページ`', 'メインページ' ],
 161                         [ '`Басты_бет`', 'Басты_бет' ],
 162
 163                         // Real world:
 164                         [ '`Alix`', 'Alix' ],  # while( ! $recovered ) { sleep(); }
 165                         [ '`Backtick: ```', 'Backtick: `' ],
 166                         [ '`This is a test`', 'This is a test' ],
 167                 ];
 168         }
 169
 170         private static function createUnicodeString( $str ) {
 171                 return json_decode( '"' . $str . '"' );
 172         }
 173
 174         private function getMockForViews() {
 175                 $db = $this->getMockBuilder( 'DatabaseMysqli' )
 176                         ->disableOriginalConstructor()
 177                         ->setMethods( [ 'fetchRow', 'query' ] )
 178                         ->getMock();
 179
 180                 $db->method( 'query' )
 181                         ->with( $this->anything() )
 182                         ->willReturn( new FakeResultWrapper( [
 183                                 (object)[ 'Tables_in_' => 'view1' ],
 184                                 (object)[ 'Tables_in_' => 'view2' ],
 185                                 (object)[ 'Tables_in_' => 'myview' ]
 186                         ] ) );
 187
 188                 return $db;
 189         }
 190
 191         /**
 192          * @covers Wikimedia\Rdbms\DatabaseMysqlBase::listViews
 193          */
 194         public function testListviews() {
 195                 $db = $this->getMockForViews();
 196
 197                 $this->assertEquals( [ 'view1', 'view2', 'myview' ],
 198                         $db->listViews() );
 199
 200                 // Prefix filtering
 201                 $this->assertEquals( [ 'view1', 'view2' ],
 202                         $db->listViews( 'view' ) );
 203                 $this->assertEquals( [ 'myview' ],
 204                         $db->listViews( 'my' ) );
 205                 $this->assertEquals( [],
 206                         $db->listViews( 'UNUSED_PREFIX' ) );
 207                 $this->assertEquals( [ 'view1', 'view2', 'myview' ],
 208                         $db->listViews( '' ) );
 209         }
 210
 211         /**
 212          * @dataProvider provideComparePositions
 213          * @covers Wikimedia\Rdbms\MySQLMasterPos
 214          */
 215         public function testHasReached( MySQLMasterPos $lowerPos, MySQLMasterPos $higherPos, $match ) {
 216                 if ( $match ) {
 217                         $this->assertTrue( $lowerPos->channelsMatch( $higherPos ) );
 218
 219                         $this->assertTrue( $higherPos->hasReached( $lowerPos ) );
 220                         $this->assertTrue( $higherPos->hasReached( $higherPos ) );
 221                         $this->assertTrue( $lowerPos->hasReached( $lowerPos ) );
 222                         $this->assertFalse( $lowerPos->hasReached( $higherPos ) );
 223                 } else { // channels don't match
 224                         $this->assertFalse( $lowerPos->channelsMatch( $higherPos ) );
 225
 226                         $this->assertFalse( $higherPos->hasReached( $lowerPos ) );
 227                         $this->assertFalse( $lowerPos->hasReached( $higherPos ) );
 228                 }
 229         }
 230
 231         public static function provideComparePositions() {
 232                 return [
 233                         // Binlog style
 234                         [
 235                                 new MySQLMasterPos( 'db1034-bin.000976', '843431247' ),
 236                                 new MySQLMasterPos( 'db1034-bin.000976', '843431248' ),
 237                                 true
 238                         ],
 239                         [
 240                                 new MySQLMasterPos( 'db1034-bin.000976', '999' ),
 241                                 new MySQLMasterPos( 'db1034-bin.000976', '1000' ),
 242                                 true
 243                         ],
 244                         [
 245                                 new MySQLMasterPos( 'db1034-bin.000976', '999' ),
 246                                 new MySQLMasterPos( 'db1035-bin.000976', '1000' ),
 247                                 false
 248                         ],
 249                         // MySQL GTID style
 250                         [
 251                                 new MySQLMasterPos( 'db1-bin.2', '1', '3E11FA47-71CA-11E1-9E33-C80AA9429562:23' ),
 252                                 new MySQLMasterPos( 'db1-bin.2', '2', '3E11FA47-71CA-11E1-9E33-C80AA9429562:24' ),
 253                                 true
 254                         ],
 255                         [
 256                                 new MySQLMasterPos( 'db1-bin.2', '1', '3E11FA47-71CA-11E1-9E33-C80AA9429562:99' ),
 257                                 new MySQLMasterPos( 'db1-bin.2', '2', '3E11FA47-71CA-11E1-9E33-C80AA9429562:100' ),
 258                                 true
 259                         ],
 260                         [
 261                                 new MySQLMasterPos( 'db1-bin.2', '1', '3E11FA47-71CA-11E1-9E33-C80AA9429562:99' ),
 262                                 new MySQLMasterPos( 'db1-bin.2', '2', '1E11FA47-71CA-11E1-9E33-C80AA9429562:100' ),
 263                                 false
 264                         ],
 265                         // MariaDB GTID style
 266                         [
 267                                 new MySQLMasterPos( 'db1-bin.2', '1', '255-11-23' ),
 268                                 new MySQLMasterPos( 'db1-bin.2', '2', '255-11-24' ),
 269                                 true
 270                         ],
 271                         [
 272                                 new MySQLMasterPos( 'db1-bin.2', '1', '255-11-99' ),
 273                                 new MySQLMasterPos( 'db1-bin.2', '2', '255-11-100' ),
 274                                 true
 275                         ],
 276                         [
 277                                 new MySQLMasterPos( 'db1-bin.2', '1', '255-11-999' ),
 278                                 new MySQLMasterPos( 'db1-bin.2', '2', '254-11-1000' ),
 279                                 false
 280                         ],
 281                 ];
 282         }
 283
 284         /**
 285          * @dataProvider provideChannelPositions
 286          * @covers Wikimedia\Rdbms\MySQLMasterPos
 287          */
 288         public function testChannelsMatch( MySQLMasterPos $pos1, MySQLMasterPos $pos2, $matches ) {
 289                 $this->assertEquals( $matches, $pos1->channelsMatch( $pos2 ) );
 290                 $this->assertEquals( $matches, $pos2->channelsMatch( $pos1 ) );
 291         }
 292
 293         public static function provideChannelPositions() {
 294                 return [
 295                         [
 296                                 new MySQLMasterPos( 'db1034-bin.000876', '44' ),
 297                                 new MySQLMasterPos( 'db1034-bin.000976', '74' ),
 298                                 true
 299                         ],
 300                         [
 301                                 new MySQLMasterPos( 'db1052-bin.000976', '999' ),
 302                                 new MySQLMasterPos( 'db1052-bin.000976', '1000' ),
 303                                 true
 304                         ],
 305                         [
 306                                 new MySQLMasterPos( 'db1066-bin.000976', '9999' ),
 307                                 new MySQLMasterPos( 'db1035-bin.000976', '10000' ),
 308                                 false
 309                         ],
 310                         [
 311                                 new MySQLMasterPos( 'db1066-bin.000976', '9999' ),
 312                                 new MySQLMasterPos( 'trump2016.000976', '10000' ),
 313                                 false
 314                         ],
 315                 ];
 316         }
 317
 318         /**
 319          * @dataProvider provideLagAmounts
 320          * @covers Wikimedia\Rdbms\DatabaseMysqlBase::getLag
 321          * @covers Wikimedia\Rdbms\DatabaseMysqlBase::getLagFromPtHeartbeat
 322          */
 323         public function testPtHeartbeat( $lag ) {
 324                 $db = $this->getMockBuilder( 'DatabaseMysqli' )
 325                         ->disableOriginalConstructor()
 326                         ->setMethods( [
 327                                 'getLagDetectionMethod', 'getHeartbeatData', 'getMasterServerInfo' ] )
 328                         ->getMock();
 329
 330                 $db->method( 'getLagDetectionMethod' )
 331                         ->willReturn( 'pt-heartbeat' );
 332
 333                 $db->method( 'getMasterServerInfo' )
 334                         ->willReturn( [ 'serverId' => 172, 'asOf' => time() ] );
 335
 336                 // Fake the current time.
 337                 list( $nowSecFrac, $nowSec ) = explode( ' ', microtime() );
 338                 $now = (float)$nowSec + (float)$nowSecFrac;
 339                 // Fake the heartbeat time.
 340                 // Work arounds for weak DataTime microseconds support.
 341                 $ptTime = $now - $lag;
 342                 $ptSec = (int)$ptTime;
 343                 $ptSecFrac = ( $ptTime - $ptSec );
 344                 $ptDateTime = new DateTime( "@$ptSec" );
 345                 $ptTimeISO = $ptDateTime->format( 'Y-m-d\TH:i:s' );
 346                 $ptTimeISO .= ltrim( number_format( $ptSecFrac, 6 ), '0' );
 347
 348                 $db->method( 'getHeartbeatData' )
 349                         ->with( [ 'server_id' => 172 ] )
 350                         ->willReturn( [ $ptTimeISO, $now ] );
 351
 352                 $db->setLBInfo( 'clusterMasterHost', 'db1052' );
 353                 $lagEst = $db->getLag();
 354
 355                 $this->assertGreaterThan( $lag - 0.010, $lagEst, "Correct heatbeat lag" );
 356                 $this->assertLessThan( $lag + 0.010, $lagEst, "Correct heatbeat lag" );
 357         }
 358
 359         public static function provideLagAmounts() {
 360                 return [
 361                         [ 0 ],
 362                         [ 0.3 ],
 363                         [ 6.5 ],
 364                         [ 10.1 ],
 365                         [ 200.2 ],
 366                         [ 400.7 ],
 367                         [ 600.22 ],
 368                         [ 1000.77 ],
 369                 ];
 370         }
 371 }