tests/phpunit/includes/libs/MapCacheLRUTest.php

   1 <?php
   2 /**
   3  * @group Cache
   4  */
   5 class MapCacheLRUTest extends PHPUnit\Framework\TestCase {
   6
   7         use MediaWikiCoversValidator;
   8
   9         /**
  10          * @covers MapCacheLRU::newFromArray()
  11          * @covers MapCacheLRU::toArray()
  12          * @covers MapCacheLRU::getAllKeys()
  13          * @covers MapCacheLRU::clear()
  14          * @covers MapCacheLRU::getMaxSize()
  15          * @covers MapCacheLRU::setMaxSize()
  16          */
  17         function testArrayConversion() {
  18                 $raw = [ 'd' => 4, 'c' => 3, 'b' => 2, 'a' => 1 ];
  19                 $cache = MapCacheLRU::newFromArray( $raw, 3 );
  20
  21                 $this->assertEquals( 3, $cache->getMaxSize() );
  22                 $this->assertSame( true, $cache->has( 'a' ) );
  23                 $this->assertSame( true, $cache->has( 'b' ) );
  24                 $this->assertSame( true, $cache->has( 'c' ) );
  25                 $this->assertSame( 1, $cache->get( 'a' ) );
  26                 $this->assertSame( 2, $cache->get( 'b' ) );
  27                 $this->assertSame( 3, $cache->get( 'c' ) );
  28
  29                 $this->assertSame(
  30                         [ 'a' => 1, 'b' => 2, 'c' => 3 ],
  31                         $cache->toArray()
  32                 );
  33                 $this->assertSame(
  34                         [ 'a', 'b', 'c' ],
  35                         $cache->getAllKeys()
  36                 );
  37
  38                 $cache->clear( 'a' );
  39                 $this->assertSame(
  40                         [ 'b' => 2, 'c' => 3 ],
  41                         $cache->toArray()
  42                 );
  43
  44                 $cache->clear();
  45                 $this->assertSame(
  46                         [],
  47                         $cache->toArray()
  48                 );
  49
  50                 $cache = MapCacheLRU::newFromArray( [ 'd' => 4, 'c' => 3, 'b' => 2, 'a' => 1 ], 4 );
  51                 $cache->setMaxSize( 3 );
  52                 $this->assertSame(
  53                         [ 'c' => 3, 'b' => 2, 'a' => 1 ],
  54                         $cache->toArray()
  55                 );
  56         }
  57
  58         /**
  59          * @covers MapCacheLRU::serialize()
  60          * @covers MapCacheLRU::unserialize()
  61          */
  62         function testSerialize() {
  63                 $cache = MapCacheLRU::newFromArray( [ 'd' => 4, 'c' => 3, 'b' => 2, 'a' => 1 ], 10 );
  64                 $string = serialize( $cache );
  65                 $ncache = unserialize( $string );
  66                 $this->assertSame(
  67                         [ 'd' => 4, 'c' => 3, 'b' => 2, 'a' => 1 ],
  68                         $ncache->toArray()
  69                 );
  70         }
  71
  72         /**
  73          * @covers MapCacheLRU::has()
  74          * @covers MapCacheLRU::get()
  75          * @covers MapCacheLRU::set()
  76          */
  77         function testMissing() {
  78                 $raw = [ 'a' => 1, 'b' => 2, 'c' => 3 ];
  79                 $cache = MapCacheLRU::newFromArray( $raw, 3 );
  80
  81                 $this->assertFalse( $cache->has( 'd' ) );
  82                 $this->assertNull( $cache->get( 'd' ) );
  83                 $this->assertNull( $cache->get( 'd', 0.0, null ) );
  84                 $this->assertFalse( $cache->get( 'd', 0.0, false ) );
  85         }
  86
  87         /**
  88          * @covers MapCacheLRU::has()
  89          * @covers MapCacheLRU::get()
  90          * @covers MapCacheLRU::set()
  91          */
  92         function testLRU() {
  93                 $raw = [ 'a' => 1, 'b' => 2, 'c' => 3 ];
  94                 $cache = MapCacheLRU::newFromArray( $raw, 3 );
  95
  96                 $this->assertSame( true, $cache->has( 'c' ) );
  97                 $this->assertSame(
  98                         [ 'a' => 1, 'b' => 2, 'c' => 3 ],
  99                         $cache->toArray()
 100                 );
 101
 102                 $this->assertSame( 3, $cache->get( 'c' ) );
 103                 $this->assertSame(
 104                         [ 'a' => 1, 'b' => 2, 'c' => 3 ],
 105                         $cache->toArray()
 106                 );
 107
 108                 $this->assertSame( 1, $cache->get( 'a' ) );
 109                 $this->assertSame(
 110                         [ 'b' => 2, 'c' => 3, 'a' => 1 ],
 111                         $cache->toArray()
 112                 );
 113
 114                 $cache->set( 'a', 1 );
 115                 $this->assertSame(
 116                         [ 'b' => 2, 'c' => 3, 'a' => 1 ],
 117                         $cache->toArray()
 118                 );
 119
 120                 $cache->set( 'b', 22 );
 121                 $this->assertSame(
 122                         [ 'c' => 3, 'a' => 1, 'b' => 22 ],
 123                         $cache->toArray()
 124                 );
 125
 126                 $cache->set( 'd', 4 );
 127                 $this->assertSame(
 128                         [ 'a' => 1, 'b' => 22, 'd' => 4 ],
 129                         $cache->toArray()
 130                 );
 131
 132                 $cache->set( 'e', 5, 0.33 );
 133                 $this->assertSame(
 134                         [ 'e' => 5, 'b' => 22, 'd' => 4 ],
 135                         $cache->toArray()
 136                 );
 137
 138                 $cache->set( 'f', 6, 0.66 );
 139                 $this->assertSame(
 140                         [ 'b' => 22, 'f' => 6, 'd' => 4 ],
 141                         $cache->toArray()
 142                 );
 143
 144                 $cache->set( 'g', 7, 0.90 );
 145                 $this->assertSame(
 146                         [ 'f' => 6, 'g' => 7, 'd' => 4 ],
 147                         $cache->toArray()
 148                 );
 149
 150                 $cache->set( 'g', 7, 1.0 );
 151                 $this->assertSame(
 152                         [ 'f' => 6, 'd' => 4, 'g' => 7 ],
 153                         $cache->toArray()
 154                 );
 155         }
 156
 157         /**
 158          * @covers MapCacheLRU::has()
 159          * @covers MapCacheLRU::get()
 160          * @covers MapCacheLRU::set()
 161          */
 162         public function testExpiry() {
 163                 $raw = [ 'a' => 1, 'b' => 2, 'c' => 3 ];
 164                 $cache = MapCacheLRU::newFromArray( $raw, 3 );
 165
 166                 $now = microtime( true );
 167                 $cache->setMockTime( $now );
 168
 169                 $cache->set( 'd', 'xxx' );
 170                 $this->assertTrue( $cache->has( 'd', 30 ) );
 171                 $this->assertEquals( 'xxx', $cache->get( 'd' ) );
 172
 173                 $now += 29;
 174                 $this->assertTrue( $cache->has( 'd', 30 ) );
 175                 $this->assertEquals( 'xxx', $cache->get( 'd' ) );
 176                 $this->assertEquals( 'xxx', $cache->get( 'd', 30 ) );
 177
 178                 $now += 1.5;
 179                 $this->assertFalse( $cache->has( 'd', 30 ) );
 180                 $this->assertEquals( 'xxx', $cache->get( 'd' ) );
 181                 $this->assertNull( $cache->get( 'd', 30 ) );
 182         }
 183
 184         /**
 185          * @covers MapCacheLRU::hasField()
 186          * @covers MapCacheLRU::getField()
 187          * @covers MapCacheLRU::setField()
 188          */
 189         public function testFields() {
 190                 $raw = [ 'a' => 1, 'b' => 2, 'c' => 3 ];
 191                 $cache = MapCacheLRU::newFromArray( $raw, 3 );
 192
 193                 $now = microtime( true );
 194                 $cache->setMockTime( $now );
 195
 196                 $cache->setField( 'PMs', 'Tony Blair', 'Labour' );
 197                 $cache->setField( 'PMs', 'Margaret Thatcher', 'Tory' );
 198                 $this->assertTrue( $cache->hasField( 'PMs', 'Tony Blair', 30 ) );
 199                 $this->assertEquals( 'Labour', $cache->getField( 'PMs', 'Tony Blair' ) );
 200                 $this->assertTrue( $cache->hasField( 'PMs', 'Tony Blair', 30 ) );
 201
 202                 $now += 29;
 203                 $this->assertTrue( $cache->hasField( 'PMs', 'Tony Blair', 30 ) );
 204                 $this->assertEquals( 'Labour', $cache->getField( 'PMs', 'Tony Blair' ) );
 205                 $this->assertEquals( 'Labour', $cache->getField( 'PMs', 'Tony Blair', 30 ) );
 206
 207                 $now += 1.5;
 208                 $this->assertFalse( $cache->hasField( 'PMs', 'Tony Blair', 30 ) );
 209                 $this->assertEquals( 'Labour', $cache->getField( 'PMs', 'Tony Blair' ) );
 210                 $this->assertNull( $cache->getField( 'PMs', 'Tony Blair', 30 ) );
 211
 212                 $this->assertEquals(
 213                         [ 'Tony Blair' => 'Labour', 'Margaret Thatcher' => 'Tory' ],
 214                         $cache->get( 'PMs' )
 215                 );
 216
 217                 $cache->set( 'MPs', [
 218                         'Edwina Currie' => 1983,
 219                         'Neil Kinnock' => 1970
 220                 ] );
 221                 $this->assertEquals(
 222                         [
 223                                 'Edwina Currie' => 1983,
 224                                 'Neil Kinnock' => 1970
 225                         ],
 226                         $cache->get( 'MPs' )
 227                 );
 228
 229                 $this->assertEquals( 1983, $cache->getField( 'MPs', 'Edwina Currie' ) );
 230                 $this->assertEquals( 1970, $cache->getField( 'MPs', 'Neil Kinnock' ) );
 231         }
 232
 233         /**
 234          * @covers MapCacheLRU::has()
 235          * @covers MapCacheLRU::get()
 236          * @covers MapCacheLRU::set()
 237          * @covers MapCacheLRU::hasField()
 238          * @covers MapCacheLRU::getField()
 239          * @covers MapCacheLRU::setField()
 240          */
 241         public function testInvalidKeys() {
 242                 $cache = MapCacheLRU::newFromArray( [], 3 );
 243
 244                 try {
 245                         $cache->has( 3.4 );
 246                         $this->fail( "No exception" );
 247                 } catch ( UnexpectedValueException $e ) {
 248                         $this->assertRegExp( '/must be string or integer/', $e->getMessage() );
 249                 }
 250                 try {
 251                         $cache->get( false );
 252                         $this->fail( "No exception" );
 253                 } catch ( UnexpectedValueException $e ) {
 254                         $this->assertRegExp( '/must be string or integer/', $e->getMessage() );
 255                 }
 256                 try {
 257                         $cache->set( 3.4, 'x' );
 258                         $this->fail( "No exception" );
 259                 } catch ( UnexpectedValueException $e ) {
 260                         $this->assertRegExp( '/must be string or integer/', $e->getMessage() );
 261                 }
 262
 263                 try {
 264                         $cache->hasField( 'x', 3.4 );
 265                         $this->fail( "No exception" );
 266                 } catch ( UnexpectedValueException $e ) {
 267                         $this->assertRegExp( '/must be string or integer/', $e->getMessage() );
 268                 }
 269                 try {
 270                         $cache->getField( 'x', false );
 271                         $this->fail( "No exception" );
 272                 } catch ( UnexpectedValueException $e ) {
 273                         $this->assertRegExp( '/must be string or integer/', $e->getMessage() );
 274                 }
 275                 try {
 276                         $cache->setField( 'x', 3.4, 'x' );
 277                         $this->fail( "No exception" );
 278                 } catch ( UnexpectedValueException $e ) {
 279                         $this->assertRegExp( '/must be string or integer/', $e->getMessage() );
 280                 }
 281         }
 282 }