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

   1 <?php
   2
   3 namespace Wikimedia\Tests\Rdbms;
   4
   5 use Wikimedia\Rdbms\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  * @author Daniel Kinzler
  14  */
  15 class SessionConsistentConnectionManagerTest extends \PHPUnit\Framework\TestCase {
  16         use \PHPUnit4And6Compat;
  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                 return $this->createMock( LoadBalancer::class );
  31         }
  32
  33         public function testGetReadConnection() {
  34                 $database = $this->getIDatabaseMock();
  35                 $lb = $this->getLoadBalancerMock();
  36
  37                 $lb->expects( $this->once() )
  38                         ->method( 'getConnection' )
  39                         ->with( DB_REPLICA )
  40                         ->will( $this->returnValue( $database ) );
  41
  42                 $manager = new SessionConsistentConnectionManager( $lb );
  43                 $actual = $manager->getReadConnection();
  44
  45                 $this->assertSame( $database, $actual );
  46         }
  47
  48         public function testGetReadConnectionReturnsWriteDbOnForceMatser() {
  49                 $database = $this->getIDatabaseMock();
  50                 $lb = $this->getLoadBalancerMock();
  51
  52                 $lb->expects( $this->once() )
  53                         ->method( 'getConnection' )
  54                         ->with( DB_MASTER )
  55                         ->will( $this->returnValue( $database ) );
  56
  57                 $manager = new SessionConsistentConnectionManager( $lb );
  58                 $manager->prepareForUpdates();
  59                 $actual = $manager->getReadConnection();
  60
  61                 $this->assertSame( $database, $actual );
  62         }
  63
  64         public function testGetWriteConnection() {
  65                 $database = $this->getIDatabaseMock();
  66                 $lb = $this->getLoadBalancerMock();
  67
  68                 $lb->expects( $this->once() )
  69                         ->method( 'getConnection' )
  70                         ->with( DB_MASTER )
  71                         ->will( $this->returnValue( $database ) );
  72
  73                 $manager = new SessionConsistentConnectionManager( $lb );
  74                 $actual = $manager->getWriteConnection();
  75
  76                 $this->assertSame( $database, $actual );
  77         }
  78
  79         public function testForceMaster() {
  80                 $database = $this->getIDatabaseMock();
  81                 $lb = $this->getLoadBalancerMock();
  82
  83                 $lb->expects( $this->once() )
  84                         ->method( 'getConnection' )
  85                         ->with( DB_MASTER )
  86                         ->will( $this->returnValue( $database ) );
  87
  88                 $manager = new SessionConsistentConnectionManager( $lb );
  89                 $manager->prepareForUpdates();
  90                 $manager->getReadConnection();
  91         }
  92
  93         public function testReleaseConnection() {
  94                 $database = $this->getIDatabaseMock();
  95                 $lb = $this->getLoadBalancerMock();
  96
  97                 $lb->expects( $this->once() )
  98                         ->method( 'reuseConnection' )
  99                         ->with( $database )
 100                         ->will( $this->returnValue( null ) );
 101
 102                 $manager = new SessionConsistentConnectionManager( $lb );
 103                 $manager->releaseConnection( $database );
 104         }
 105 }