tests/phpunit/includes/db/DatabaseMysqlBaseTest.php

   1 <?php
   2 /**
   3  * Holds tests for DatabaseMysqlBase MediaWiki 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  * @author Bryan Davis
  23  * @copyright © 2013 Antoine Musso
  24  * @copyright © 2013 Bryan Davis
  25  * @copyright © 2013 Wikimedia Foundation Inc.
  26  */
  27
  28 /**
  29  * Fake class around abstract class so we can call concrete methods.
  30  */
  31 class FakeDatabaseMysqlBase extends DatabaseMysqlBase {
  32         // From DatabaseBase
  33         function __construct() {
  34         }
  35
  36         protected function closeConnection() {
  37         }
  38
  39         protected function doQuery( $sql ) {
  40         }
  41
  42         // From DatabaseMysql
  43         protected function mysqlConnect( $realServer ) {
  44         }
  45
  46         protected function mysqlSetCharset( $charset ) {
  47         }
  48
  49         protected function mysqlFreeResult( $res ) {
  50         }
  51
  52         protected function mysqlFetchObject( $res ) {
  53         }
  54
  55         protected function mysqlFetchArray( $res ) {
  56         }
  57
  58         protected function mysqlNumRows( $res ) {
  59         }
  60
  61         protected function mysqlNumFields( $res ) {
  62         }
  63
  64         protected function mysqlFieldName( $res, $n ) {
  65         }
  66
  67         protected function mysqlFieldType( $res, $n ) {
  68         }
  69
  70         protected function mysqlDataSeek( $res, $row ) {
  71         }
  72
  73         protected function mysqlError( $conn = null ) {
  74         }
  75
  76         protected function mysqlFetchField( $res, $n ) {
  77         }
  78
  79         protected function mysqlPing() {
  80         }
  81
  82         protected function mysqlRealEscapeString( $s ) {
  83
  84         }
  85
  86         // From interface DatabaseType
  87         function insertId() {
  88         }
  89
  90         function lastErrno() {
  91         }
  92
  93         function affectedRows() {
  94         }
  95
  96         function getServerVersion() {
  97         }
  98 }
  99
 100 class DatabaseMysqlBaseTest extends MediaWikiTestCase {
 101         /**
 102          * @dataProvider provideDiapers
 103          * @covers DatabaseMysqlBase::addIdentifierQuotes
 104          */
 105         public function testAddIdentifierQuotes( $expected, $in ) {
 106                 $db = new FakeDatabaseMysqlBase();
 107                 $quoted = $db->addIdentifierQuotes( $in );
 108                 $this->assertEquals( $expected, $quoted );
 109         }
 110
 111         /**
 112          * Feeds testAddIdentifierQuotes
 113          *
 114          * Named per bug 20281 convention.
 115          */
 116         function provideDiapers() {
 117                 return [
 118                         // Format: expected, input
 119                         [ '``', '' ],
 120
 121                         // Yeah I really hate loosely typed PHP idiocies nowadays
 122                         [ '``', null ],
 123
 124                         // Dear codereviewer, guess what addIdentifierQuotes()
 125                         // will return with thoses:
 126                         [ '``', false ],
 127                         [ '`1`', true ],
 128
 129                         // We never know what could happen
 130                         [ '`0`', 0 ],
 131                         [ '`1`', 1 ],
 132
 133                         // Whatchout! Should probably use something more meaningful
 134                         [ "`'`", "'" ],  # single quote
 135                         [ '`"`', '"' ],  # double quote
 136                         [ '````', '`' ], # backtick
 137                         [ '`’`', '’' ],  # apostrophe (look at your encyclopedia)
 138
 139                         // sneaky NUL bytes are lurking everywhere
 140                         [ '``', "\0" ],
 141                         [ '`xyzzy`', "\0x\0y\0z\0z\0y\0" ],
 142
 143                         // unicode chars
 144                         [
 145                                 self::createUnicodeString( '`\u0001a\uFFFFb`' ),
 146                                 self::createUnicodeString( '\u0001a\uFFFFb' )
 147                         ],
 148                         [
 149                                 self::createUnicodeString( '`\u0001\uFFFF`' ),
 150                                 self::createUnicodeString( '\u0001\u0000\uFFFF\u0000' )
 151                         ],
 152                         [ '`☃`', '☃' ],
 153                         [ '`メインページ`', 'メインページ' ],
 154                         [ '`Басты_бет`', 'Басты_бет' ],
 155
 156                         // Real world:
 157                         [ '`Alix`', 'Alix' ],  # while( ! $recovered ) { sleep(); }
 158                         [ '`Backtick: ```', 'Backtick: `' ],
 159                         [ '`This is a test`', 'This is a test' ],
 160                 ];
 161         }
 162
 163         private static function createUnicodeString( $str ) {
 164                 return json_decode( '"' . $str . '"' );
 165         }
 166
 167         function getMockForViews() {
 168                 $db = $this->getMockBuilder( 'DatabaseMysql' )
 169                         ->disableOriginalConstructor()
 170                         ->setMethods( [ 'fetchRow', 'query' ] )
 171                         ->getMock();
 172
 173                 $db->expects( $this->any() )
 174                         ->method( 'query' )
 175                         ->with( $this->anything() )
 176                         ->will(
 177                                 $this->returnValue( null )
 178                         );
 179
 180                 $db->expects( $this->any() )
 181                         ->method( 'fetchRow' )
 182                         ->with( $this->anything() )
 183                         ->will( $this->onConsecutiveCalls(
 184                                 [ 'Tables_in_' => 'view1' ],
 185                                 [ 'Tables_in_' => 'view2' ],
 186                                 [ 'Tables_in_' => 'myview' ],
 187                                 false  # no more rows
 188                         ) );
 189                 return $db;
 190         }
 191         /**
 192          * @covers DatabaseMysqlBase::listViews
 193          */
 194         function testListviews() {
 195                 $db = $this->getMockForViews();
 196
 197                 // The first call populate an internal cache of views
 198                 $this->assertEquals( [ 'view1', 'view2', 'myview' ],
 199                         $db->listViews() );
 200                 $this->assertEquals( [ 'view1', 'view2', 'myview' ],
 201                         $db->listViews() );
 202
 203                 // Prefix filtering
 204                 $this->assertEquals( [ 'view1', 'view2' ],
 205                         $db->listViews( 'view' ) );
 206                 $this->assertEquals( [ 'myview' ],
 207                         $db->listViews( 'my' ) );
 208                 $this->assertEquals( [],
 209                         $db->listViews( 'UNUSED_PREFIX' ) );
 210                 $this->assertEquals( [ 'view1', 'view2', 'myview' ],
 211                         $db->listViews( '' ) );
 212         }
 213
 214         /**
 215          * @covers DatabaseMysqlBase::isView
 216          * @dataProvider provideViewExistanceChecks
 217          */
 218         function testIsView( $isView, $viewName ) {
 219                 $db = $this->getMockForViews();
 220
 221                 switch ( $isView ) {
 222                         case true:
 223                                 $this->assertTrue( $db->isView( $viewName ),
 224                                         "$viewName should be considered a view" );
 225                         break;
 226
 227                         case false:
 228                                 $this->assertFalse( $db->isView( $viewName ),
 229                                         "$viewName has not been defined as a view" );
 230                         break;
 231                 }
 232
 233         }
 234
 235         function provideViewExistanceChecks() {
 236                 return [
 237                         // format: whether it is a view, view name
 238                         [ true, 'view1' ],
 239                         [ true, 'view2' ],
 240                         [ true, 'myview' ],
 241
 242                         [ false, 'user' ],
 243
 244                         [ false, 'view10' ],
 245                         [ false, 'my' ],
 246                         [ false, 'OH_MY_GOD' ],  # they killed kenny!
 247                 ];
 248         }
 249
 250         /**
 251          * @dataProvider provideComparePositions
 252          */
 253         function testHasReached( MySQLMasterPos $lowerPos, MySQLMasterPos $higherPos ) {
 254                 $this->assertTrue( $higherPos->hasReached( $lowerPos ) );
 255                 $this->assertTrue( $higherPos->hasReached( $higherPos ) );
 256                 $this->assertTrue( $lowerPos->hasReached( $lowerPos ) );
 257                 $this->assertFalse( $lowerPos->hasReached( $higherPos ) );
 258         }
 259
 260         function provideComparePositions() {
 261                 return [
 262                         [
 263                                 new MySQLMasterPos( 'db1034-bin.000976', '843431247' ),
 264                                 new MySQLMasterPos( 'db1034-bin.000976', '843431248' )
 265                         ],
 266                         [
 267                                 new MySQLMasterPos( 'db1034-bin.000976', '999' ),
 268                                 new MySQLMasterPos( 'db1034-bin.000976', '1000' )
 269                         ],
 270                         [
 271                                 new MySQLMasterPos( 'db1034-bin.000976', '999' ),
 272                                 new MySQLMasterPos( 'db1035-bin.000976', '1000' )
 273                         ],
 274                 ];
 275         }
 276
 277         /**
 278          * @dataProvider provideChannelPositions
 279          */
 280         function testChannelsMatch( MySQLMasterPos $pos1, MySQLMasterPos $pos2, $matches ) {
 281                 $this->assertEquals( $matches, $pos1->channelsMatch( $pos2 ) );
 282                 $this->assertEquals( $matches, $pos2->channelsMatch( $pos1 ) );
 283         }
 284
 285         function provideChannelPositions() {
 286                 return [
 287                         [
 288                                 new MySQLMasterPos( 'db1034-bin.000876', '44' ),
 289                                 new MySQLMasterPos( 'db1034-bin.000976', '74' ),
 290                                 true
 291                         ],
 292                         [
 293                                 new MySQLMasterPos( 'db1052-bin.000976', '999' ),
 294                                 new MySQLMasterPos( 'db1052-bin.000976', '1000' ),
 295                                 true
 296                         ],
 297                         [
 298                                 new MySQLMasterPos( 'db1066-bin.000976', '9999' ),
 299                                 new MySQLMasterPos( 'db1035-bin.000976', '10000' ),
 300                                 false
 301                         ],
 302                         [
 303                                 new MySQLMasterPos( 'db1066-bin.000976', '9999' ),
 304                                 new MySQLMasterPos( 'trump2016.000976', '10000' ),
 305                                 false
 306                         ],
 307                 ];
 308         }
 309
 310         /**
 311          * @dataProvider provideLagAmounts
 312          */
 313         function testPtHeartbeat( $lag ) {
 314                 $db = $this->getMockBuilder( 'DatabaseMysql' )
 315                         ->disableOriginalConstructor()
 316                         ->setMethods( [
 317                                 'getLagDetectionMethod', 'getHeartbeatData', 'getMasterServerInfo' ] )
 318                         ->getMock();
 319
 320                 $db->expects( $this->any() )
 321                         ->method( 'getLagDetectionMethod' )
 322                         ->will( $this->returnValue( 'pt-heartbeat' ) );
 323
 324                 $db->expects( $this->any() )
 325                         ->method( 'getMasterServerInfo' )
 326                         ->will( $this->returnValue( [ 'serverId' => 172, 'asOf' => time() ] ) );
 327
 328                 // Fake the current time.
 329                 list( $nowSecFrac, $nowSec ) = explode( ' ', microtime() );
 330                 $now = (float)$nowSec + (float)$nowSecFrac;
 331                 // Fake the heartbeat time.
 332                 // Work arounds for weak DataTime microseconds support.
 333                 $ptTime = $now - $lag;
 334                 $ptSec = (int)$ptTime;
 335                 $ptSecFrac = ( $ptTime - $ptSec );
 336                 $ptDateTime = new DateTime( "@$ptSec" );
 337                 $ptTimeISO = $ptDateTime->format( 'Y-m-d\TH:i:s' );
 338                 $ptTimeISO .= ltrim( number_format( $ptSecFrac, 6 ), '0' );
 339
 340                 $db->expects( $this->any() )
 341                         ->method( 'getHeartbeatData' )
 342                         ->with( 172 )
 343                         ->will( $this->returnValue( [ $ptTimeISO, $now ] ) );
 344
 345                 $db->setLBInfo( 'clusterMasterHost', 'db1052' );
 346                 $lagEst = $db->getLag();
 347
 348                 $this->assertGreaterThan( $lag - .010, $lagEst, "Correct heatbeat lag" );
 349                 $this->assertLessThan( $lag + .010, $lagEst, "Correct heatbeat lag" );
 350         }
 351
 352         function provideLagAmounts() {
 353                 return [
 354                         [ 0 ],
 355                         [ 0.3 ],
 356                         [ 6.5 ],
 357                         [ 10.1 ],
 358                         [ 200.2 ],
 359                         [ 400.7 ],
 360                         [ 600.22 ],
 361                         [ 1000.77 ],
 362                 ];
 363         }
 364 }