tests/phpunit/includes/utils/UIDGeneratorTest.php

   1 <?php
   2
   3 class UIDGeneratorTest extends MediaWikiTestCase {
   4
   5         protected function tearDown() {
   6                 // Bug: 44850
   7                 UIDGenerator::unitTestTearDown();
   8                 parent::tearDown();
   9         }
  10
  11         /**
  12          * @dataProvider provider_testTimestampedUID
  13          * @covers UIDGenerator::newTimestampedUID128
  14          * @covers UIDGenerator::newTimestampedUID88
  15          */
  16         public function testTimestampedUID( $method, $digitlen, $bits, $tbits, $hostbits ) {
  17                 $id = call_user_func( array( 'UIDGenerator', $method ) );
  18                 $this->assertEquals( true, ctype_digit( $id ), "UID made of digit characters" );
  19                 $this->assertLessThanOrEqual( $digitlen, strlen( $id ),
  20                         "UID has the right number of digits" );
  21                 $this->assertLessThanOrEqual( $bits, strlen( wfBaseConvert( $id, 10, 2 ) ),
  22                         "UID has the right number of bits" );
  23
  24                 $ids = array();
  25                 for ( $i = 0; $i < 300; $i++ ) {
  26                         $ids[] = call_user_func( array( 'UIDGenerator', $method ) );
  27                 }
  28
  29                 $lastId = array_shift( $ids );
  30
  31                 $this->assertArrayEquals( array_unique( $ids ), $ids, "All generated IDs are unique." );
  32
  33                 foreach ( $ids as $id ) {
  34                         $id_bin = wfBaseConvert( $id, 10, 2 );
  35                         $lastId_bin = wfBaseConvert( $lastId, 10, 2 );
  36
  37                         $this->assertGreaterThanOrEqual(
  38                                 substr( $lastId_bin, 0, $tbits ),
  39                                 substr( $id_bin, 0, $tbits ),
  40                                 "New ID timestamp ($id_bin) >= prior one ($lastId_bin)." );
  41
  42                         if ( $hostbits ) {
  43                                 $this->assertEquals(
  44                                         substr( $id_bin, -$hostbits ),
  45                                         substr( $lastId_bin, -$hostbits ),
  46                                         "Host ID of ($id_bin) is same as prior one ($lastId_bin)." );
  47                         }
  48
  49                         $lastId = $id;
  50                 }
  51         }
  52
  53         /**
  54          * array( method, length, bits, hostbits )
  55          * NOTE: When adding a new method name here please update the covers tags for the tests!
  56          */
  57         public static function provider_testTimestampedUID() {
  58                 return array(
  59                         array( 'newTimestampedUID128', 39, 128, 46, 48 ),
  60                         array( 'newTimestampedUID128', 39, 128, 46, 48 ),
  61                         array( 'newTimestampedUID88', 27, 88, 46, 32 ),
  62                 );
  63         }
  64
  65         /**
  66          * @covers UIDGenerator::newUUIDv4
  67          */
  68         public function testUUIDv4() {
  69                 for ( $i = 0; $i < 100; $i++ ) {
  70                         $id = UIDGenerator::newUUIDv4();
  71                         $this->assertEquals( true,
  72                                 preg_match( '!^[0-9a-f]{8}-[0-9a-f]{4}-4[0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}$!', $id ),
  73                                 "UID $id has the right format" );
  74                 }
  75         }
  76
  77         /**
  78          * @covers UIDGenerator::newRawUUIDv4
  79          */
  80         public function testRawUUIDv4() {
  81                 for ( $i = 0; $i < 100; $i++ ) {
  82                         $id = UIDGenerator::newRawUUIDv4();
  83                         $this->assertEquals( true,
  84                                 preg_match( '!^[0-9a-f]{12}4[0-9a-f]{3}[89ab][0-9a-f]{15}$!', $id ),
  85                                 "UID $id has the right format" );
  86                 }
  87         }
  88
  89         /**
  90          * @covers UIDGenerator::newRawUUIDv4
  91          */
  92         public function testRawUUIDv4QuickRand() {
  93                 for ( $i = 0; $i < 100; $i++ ) {
  94                         $id = UIDGenerator::newRawUUIDv4( UIDGenerator::QUICK_RAND );
  95                         $this->assertEquals( true,
  96                                 preg_match( '!^[0-9a-f]{12}4[0-9a-f]{3}[89ab][0-9a-f]{15}$!', $id ),
  97                                 "UID $id has the right format" );
  98                 }
  99         }
 100
 101         /**
 102          * @covers UIDGenerator::newSequentialPerNodeID
 103          */
 104         public function testNewSequentialID() {
 105                 $id1 = UIDGenerator::newSequentialPerNodeID( 'test', 32 );
 106                 $id2 = UIDGenerator::newSequentialPerNodeID( 'test', 32 );
 107
 108                 $this->assertType( 'float', $id1, "ID returned as float" );
 109                 $this->assertType( 'float', $id2, "ID returned as float" );
 110                 $this->assertGreaterThan( 0, $id1, "ID greater than 1" );
 111                 $this->assertGreaterThan( $id1, $id2, "IDs increasing in value" );
 112         }
 113
 114         /**
 115          * @covers UIDGenerator::newSequentialPerNodeIDs
 116          */
 117         public function testNewSequentialIDs() {
 118                 $ids = UIDGenerator::newSequentialPerNodeIDs( 'test', 32, 5 );
 119                 $lastId = null;
 120                 foreach ( $ids as $id ) {
 121                         $this->assertType( 'float', $id, "ID returned as float" );
 122                         $this->assertGreaterThan( 0, $id, "ID greater than 1" );
 123                         if ( $lastId ) {
 124                                 $this->assertGreaterThan( $lastId, $id, "IDs increasing in value" );
 125                         }
 126                         $lastId = $id;
 127                 }
 128         }
 129 }