tests/phpunit/includes/libs/HashRingTest.php

   1 <?php
   2
   3 /**
   4  * @group HashRing
   5  */
   6 class HashRingTest extends MediaWikiTestCase {
   7         /**
   8          * @covers HashRing
   9          */
  10         public function testHashRing() {
  11                 $ring = new HashRing( array( 's1' => 1, 's2' => 1, 's3' => 2, 's4' => 2, 's5' => 2, 's6' => 3 ) );
  12
  13                 $locations = array();
  14                 for ( $i = 0; $i < 20; $i++ ) {
  15                         $locations[ "hello$i"] = $ring->getLocation( "hello$i" );
  16                 }
  17                 $expectedLocations = array(
  18                         "hello0" => "s5",
  19                         "hello1" => "s6",
  20                         "hello2" => "s2",
  21                         "hello3" => "s5",
  22                         "hello4" => "s6",
  23                         "hello5" => "s4",
  24                         "hello6" => "s5",
  25                         "hello7" => "s4",
  26                         "hello8" => "s5",
  27                         "hello9" => "s5",
  28                         "hello10" => "s3",
  29                         "hello11" => "s6",
  30                         "hello12" => "s1",
  31                         "hello13" => "s3",
  32                         "hello14" => "s3",
  33                         "hello15" => "s5",
  34                         "hello16" => "s4",
  35                         "hello17" => "s6",
  36                         "hello18" => "s6",
  37                         "hello19" => "s3"
  38                 );
  39
  40                 $this->assertEquals( $expectedLocations, $locations, 'Items placed at proper locations' );
  41
  42                 $locations = array();
  43                 for ( $i = 0; $i < 5; $i++ ) {
  44                         $locations[ "hello$i"] = $ring->getLocations( "hello$i", 2 );
  45                 }
  46
  47                 $expectedLocations = array(
  48                         "hello0" => array( "s5", "s6" ),
  49                         "hello1" => array( "s6", "s4" ),
  50                         "hello2" => array( "s2", "s1" ),
  51                         "hello3" => array( "s5", "s6" ),
  52                         "hello4" => array( "s6", "s4" ),
  53                 );
  54                 $this->assertEquals( $expectedLocations, $locations, 'Items placed at proper locations' );
  55         }
  56 }