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 testLRU() {
  78                 $raw = [ 'a' => 1, 'b' => 2, 'c' => 3 ];
  79                 $cache = MapCacheLRU::newFromArray( $raw, 3 );
  80
  81                 $this->assertSame( true, $cache->has( 'c' ) );
  82                 $this->assertSame(
  83                         [ 'a' => 1, 'b' => 2, 'c' => 3 ],
  84                         $cache->toArray()
  85                 );
  86
  87                 $this->assertSame( 3, $cache->get( 'c' ) );
  88                 $this->assertSame(
  89                         [ 'a' => 1, 'b' => 2, 'c' => 3 ],
  90                         $cache->toArray()
  91                 );
  92
  93                 $this->assertSame( 1, $cache->get( 'a' ) );
  94                 $this->assertSame(
  95                         [ 'b' => 2, 'c' => 3, 'a' => 1 ],
  96                         $cache->toArray()
  97                 );
  98
  99                 $cache->set( 'a', 1 );
 100                 $this->assertSame(
 101                         [ 'b' => 2, 'c' => 3, 'a' => 1 ],
 102                         $cache->toArray()
 103                 );
 104
 105                 $cache->set( 'b', 22 );
 106                 $this->assertSame(
 107                         [ 'c' => 3, 'a' => 1, 'b' => 22 ],
 108                         $cache->toArray()
 109                 );
 110
 111                 $cache->set( 'd', 4 );
 112                 $this->assertSame(
 113                         [ 'a' => 1, 'b' => 22, 'd' => 4 ],
 114                         $cache->toArray()
 115                 );
 116
 117                 $cache->set( 'e', 5, 0.33 );
 118                 $this->assertSame(
 119                         [ 'e' => 5, 'b' => 22, 'd' => 4 ],
 120                         $cache->toArray()
 121                 );
 122
 123                 $cache->set( 'f', 6, 0.66 );
 124                 $this->assertSame(
 125                         [ 'b' => 22, 'f' => 6, 'd' => 4 ],
 126                         $cache->toArray()
 127                 );
 128
 129                 $cache->set( 'g', 7, 0.90 );
 130                 $this->assertSame(
 131                         [ 'f' => 6, 'g' => 7, 'd' => 4 ],
 132                         $cache->toArray()
 133                 );
 134
 135                 $cache->set( 'g', 7, 1.0 );
 136                 $this->assertSame(
 137                         [ 'f' => 6, 'd' => 4, 'g' => 7 ],
 138                         $cache->toArray()
 139                 );
 140         }
 141
 142         /**
 143          * @covers MapCacheLRU::has()
 144          * @covers MapCacheLRU::get()
 145          * @covers MapCacheLRU::set()
 146          */
 147         public function testExpiry() {
 148                 $raw = [ 'a' => 1, 'b' => 2, 'c' => 3 ];
 149                 $cache = MapCacheLRU::newFromArray( $raw, 3 );
 150
 151                 $now = microtime( true );
 152                 $cache->setMockTime( $now );
 153
 154                 $cache->set( 'd', 'xxx' );
 155                 $this->assertTrue( $cache->has( 'd', 30 ) );
 156                 $this->assertEquals( 'xxx', $cache->get( 'd' ) );
 157
 158                 $now += 29;
 159                 $this->assertTrue( $cache->has( 'd', 30 ) );
 160                 $this->assertEquals( 'xxx', $cache->get( 'd' ) );
 161                 $this->assertEquals( 'xxx', $cache->get( 'd', 30 ) );
 162
 163                 $now += 1.5;
 164                 $this->assertFalse( $cache->has( 'd', 30 ) );
 165                 $this->assertEquals( 'xxx', $cache->get( 'd' ) );
 166                 $this->assertNull( $cache->get( 'd', 30 ) );
 167         }
 168
 169         /**
 170          * @covers MapCacheLRU::hasField()
 171          * @covers MapCacheLRU::getField()
 172          * @covers MapCacheLRU::setField()
 173          */
 174         public function testFields() {
 175                 $raw = [ 'a' => 1, 'b' => 2, 'c' => 3 ];
 176                 $cache = MapCacheLRU::newFromArray( $raw, 3 );
 177
 178                 $now = microtime( true );
 179                 $cache->setMockTime( $now );
 180
 181                 $cache->setField( 'PMs', 'Tony Blair', 'Labour' );
 182                 $cache->setField( 'PMs', 'Margaret Thatcher', 'Tory' );
 183                 $this->assertTrue( $cache->hasField( 'PMs', 'Tony Blair', 30 ) );
 184                 $this->assertEquals( 'Labour', $cache->getField( 'PMs', 'Tony Blair' ) );
 185                 $this->assertTrue( $cache->hasField( 'PMs', 'Tony Blair', 30 ) );
 186
 187                 $now += 29;
 188                 $this->assertTrue( $cache->hasField( 'PMs', 'Tony Blair', 30 ) );
 189                 $this->assertEquals( 'Labour', $cache->getField( 'PMs', 'Tony Blair' ) );
 190                 $this->assertEquals( 'Labour', $cache->getField( 'PMs', 'Tony Blair', 30 ) );
 191
 192                 $now += 1.5;
 193                 $this->assertFalse( $cache->hasField( 'PMs', 'Tony Blair', 30 ) );
 194                 $this->assertEquals( 'Labour', $cache->getField( 'PMs', 'Tony Blair' ) );
 195                 $this->assertNull( $cache->getField( 'PMs', 'Tony Blair', 30 ) );
 196
 197                 $this->assertEquals(
 198                         [ 'Tony Blair' => 'Labour', 'Margaret Thatcher' => 'Tory' ],
 199                         $cache->get( 'PMs' )
 200                 );
 201
 202                 $cache->set( 'MPs', [
 203                         'Edwina Currie' => 1983,
 204                         'Neil Kinnock' => 1970
 205                 ] );
 206                 $this->assertEquals(
 207                         [
 208                                 'Edwina Currie' => 1983,
 209                                 'Neil Kinnock' => 1970
 210                         ],
 211                         $cache->get( 'MPs' )
 212                 );
 213
 214                 $this->assertEquals( 1983, $cache->getField( 'MPs', 'Edwina Currie' ) );
 215                 $this->assertEquals( 1970, $cache->getField( 'MPs', 'Neil Kinnock' ) );
 216         }
 217
 218         /**
 219          * @covers MapCacheLRU::has()
 220          * @covers MapCacheLRU::get()
 221          * @covers MapCacheLRU::set()
 222          * @covers MapCacheLRU::hasField()
 223          * @covers MapCacheLRU::getField()
 224          * @covers MapCacheLRU::setField()
 225          */
 226         public function testInvalidKeys() {
 227                 $cache = MapCacheLRU::newFromArray( [], 3 );
 228
 229                 try {
 230                         $cache->has( 3.4 );
 231                         $this->fail( "No exception" );
 232                 } catch ( UnexpectedValueException $e ) {
 233                         $this->assertRegExp( '/must be string or integer/', $e->getMessage() );
 234                 }
 235                 try {
 236                         $cache->get( false );
 237                         $this->fail( "No exception" );
 238                 } catch ( UnexpectedValueException $e ) {
 239                         $this->assertRegExp( '/must be string or integer/', $e->getMessage() );
 240                 }
 241                 try {
 242                         $cache->set( 3.4, 'x' );
 243                         $this->fail( "No exception" );
 244                 } catch ( UnexpectedValueException $e ) {
 245                         $this->assertRegExp( '/must be string or integer/', $e->getMessage() );
 246                 }
 247
 248                 try {
 249                         $cache->hasField( 'x', 3.4 );
 250                         $this->fail( "No exception" );
 251                 } catch ( UnexpectedValueException $e ) {
 252                         $this->assertRegExp( '/must be string or integer/', $e->getMessage() );
 253                 }
 254                 try {
 255                         $cache->getField( 'x', false );
 256                         $this->fail( "No exception" );
 257                 } catch ( UnexpectedValueException $e ) {
 258                         $this->assertRegExp( '/must be string or integer/', $e->getMessage() );
 259                 }
 260                 try {
 261                         $cache->setField( 'x', 3.4, 'x' );
 262                         $this->fail( "No exception" );
 263                 } catch ( UnexpectedValueException $e ) {
 264                         $this->assertRegExp( '/must be string or integer/', $e->getMessage() );
 265                 }
 266         }
 267 }