/**
  * @covers ConfigFactory::getDefaultInstance
  */
 public function testGetDefaultInstance()
 {
     // Set $wgConfigRegistry, and check the default
     // instance read from it
     $this->setMwGlobals('wgConfigRegistry', array('conf1' => 'GlobalVarConfig::newInstance', 'conf2' => 'GlobalVarConfig::newInstance'));
     ConfigFactory::destroyDefaultInstance();
     $factory = ConfigFactory::getDefaultInstance();
     $this->assertInstanceOf('Config', $factory->makeConfig('conf1'));
     $this->assertInstanceOf('Config', $factory->makeConfig('conf2'));
     $this->setExpectedException('ConfigException');
     $factory->makeConfig('conf3');
 }