tests/phpunit/includes/libs/rdbms/connectionmanager/SessionConsistentConnectionManagerTest.php

   1 <?php
   2
   3 namespace Wikimedia\Tests\Rdbms;
   4
   5 use IDatabase;
   6 use Wikimedia\Rdbms\LoadBalancer;
   7 use PHPUnit_Framework_MockObject_MockObject;
   8 use Wikimedia\Rdbms\SessionConsistentConnectionManager;
   9
  10 /**
  11  * @covers Wikimedia\Rdbms\SessionConsistentConnectionManager
  12  *
  13  * @license GPL-2.0+
  14  * @author Daniel Kinzler
  15  */
  16 class SessionConsistentConnectionManagerTest extends \PHPUnit_Framework_TestCase {
  17
  18         /**
  19          * @return IDatabase|PHPUnit_Framework_MockObject_MockObject
  20          */
  21         private function getIDatabaseMock() {
  22                 return $this->getMockBuilder( IDatabase::class )
  23                         ->getMock();
  24         }
  25
  26         /**
  27          * @return LoadBalancer|PHPUnit_Framework_MockObject_MockObject
  28          */
  29         private function getLoadBalancerMock() {
  30                 $lb = $this->getMockBuilder( LoadBalancer::class )
  31                         ->disableOriginalConstructor()
  32                         ->getMock();
  33
  34                 return $lb;
  35         }
  36
  37         public function testGetReadConnection() {
  38                 $database = $this->getIDatabaseMock();
  39                 $lb = $this->getLoadBalancerMock();
  40
  41                 $lb->expects( $this->once() )
  42                         ->method( 'getConnection' )
  43                         ->with( DB_REPLICA )
  44                         ->will( $this->returnValue( $database ) );
  45
  46                 $manager = new SessionConsistentConnectionManager( $lb );
  47                 $actual = $manager->getReadConnection();
  48
  49                 $this->assertSame( $database, $actual );
  50         }
  51
  52         public function testGetReadConnectionReturnsWriteDbOnForceMatser() {
  53                 $database = $this->getIDatabaseMock();
  54                 $lb = $this->getLoadBalancerMock();
  55
  56                 $lb->expects( $this->once() )
  57                         ->method( 'getConnection' )
  58                         ->with( DB_MASTER )
  59                         ->will( $this->returnValue( $database ) );
  60
  61                 $manager = new SessionConsistentConnectionManager( $lb );
  62                 $manager->prepareForUpdates();
  63                 $actual = $manager->getReadConnection();
  64
  65                 $this->assertSame( $database, $actual );
  66         }
  67
  68         public function testGetWriteConnection() {
  69                 $database = $this->getIDatabaseMock();
  70                 $lb = $this->getLoadBalancerMock();
  71
  72                 $lb->expects( $this->once() )
  73                         ->method( 'getConnection' )
  74                         ->with( DB_MASTER )
  75                         ->will( $this->returnValue( $database ) );
  76
  77                 $manager = new SessionConsistentConnectionManager( $lb );
  78                 $actual = $manager->getWriteConnection();
  79
  80                 $this->assertSame( $database, $actual );
  81         }
  82
  83         public function testForceMaster() {
  84                 $database = $this->getIDatabaseMock();
  85                 $lb = $this->getLoadBalancerMock();
  86
  87                 $lb->expects( $this->once() )
  88                         ->method( 'getConnection' )
  89                         ->with( DB_MASTER )
  90                         ->will( $this->returnValue( $database ) );
  91
  92                 $manager = new SessionConsistentConnectionManager( $lb );
  93                 $manager->prepareForUpdates();
  94                 $manager->getReadConnection();
  95         }
  96
  97         public function testReleaseConnection() {
  98                 $database = $this->getIDatabaseMock();
  99                 $lb = $this->getLoadBalancerMock();
 100
 101                 $lb->expects( $this->once() )
 102                         ->method( 'reuseConnection' )
 103                         ->with( $database )
 104                         ->will( $this->returnValue( null ) );
 105
 106                 $manager = new SessionConsistentConnectionManager( $lb );
 107                 $manager->releaseConnection( $database );
 108         }
 109 }