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<?php
namespace Wikimedia\Tests\Rdbms;
use Wikimedia\Rdbms\IDatabase;
use Wikimedia\Rdbms\LoadBalancer;
use PHPUnit_Framework_MockObject_MockObject;
use Wikimedia\Rdbms\SessionConsistentConnectionManager;
/**
* @covers Wikimedia\Rdbms\SessionConsistentConnectionManager
*
* @author Daniel Kinzler
*/
class SessionConsistentConnectionManagerTest extends \PHPUnit\Framework\TestCase {
/**
* @return IDatabase|PHPUnit_Framework_MockObject_MockObject
*/
private function getIDatabaseMock() {
return $this->getMockBuilder( IDatabase::class )
->getMock();
}
/**
* @return LoadBalancer|PHPUnit_Framework_MockObject_MockObject
*/
private function getLoadBalancerMock() {
$lb = $this->getMockBuilder( LoadBalancer::class )
->disableOriginalConstructor()
->getMock();
return $lb;
}
public function testGetReadConnection() {
$database = $this->getIDatabaseMock();
$lb = $this->getLoadBalancerMock();
$lb->expects( $this->once() )
->method( 'getConnection' )
->with( DB_REPLICA )
->will( $this->returnValue( $database ) );
$manager = new SessionConsistentConnectionManager( $lb );
$actual = $manager->getReadConnection();
$this->assertSame( $database, $actual );
}
public function testGetReadConnectionReturnsWriteDbOnForceMatser() {
$database = $this->getIDatabaseMock();
$lb = $this->getLoadBalancerMock();
$lb->expects( $this->once() )
->method( 'getConnection' )
->with( DB_MASTER )
->will( $this->returnValue( $database ) );
$manager = new SessionConsistentConnectionManager( $lb );
$manager->prepareForUpdates();
$actual = $manager->getReadConnection();
$this->assertSame( $database, $actual );
}
public function testGetWriteConnection() {
$database = $this->getIDatabaseMock();
$lb = $this->getLoadBalancerMock();
$lb->expects( $this->once() )
->method( 'getConnection' )
->with( DB_MASTER )
->will( $this->returnValue( $database ) );
$manager = new SessionConsistentConnectionManager( $lb );
$actual = $manager->getWriteConnection();
$this->assertSame( $database, $actual );
}
public function testForceMaster() {
$database = $this->getIDatabaseMock();
$lb = $this->getLoadBalancerMock();
$lb->expects( $this->once() )
->method( 'getConnection' )
->with( DB_MASTER )
->will( $this->returnValue( $database ) );
$manager = new SessionConsistentConnectionManager( $lb );
$manager->prepareForUpdates();
$manager->getReadConnection();
}
public function testReleaseConnection() {
$database = $this->getIDatabaseMock();
$lb = $this->getLoadBalancerMock();
$lb->expects( $this->once() )
->method( 'reuseConnection' )
->with( $database )
->will( $this->returnValue( null ) );
$manager = new SessionConsistentConnectionManager( $lb );
$manager->releaseConnection( $database );
}
}
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