public function testMultipleCallsToAddStaticMapMergeMap()
 {
     PluginClassLoader::addStaticMap(array('test' => __CLASS__));
     PluginClassLoader::addStaticMap(array('loader' => 'Zend\\Loader\\PluginClassLoader'));
     $loader = new PluginClassLoader();
     $this->assertEquals(__CLASS__, $loader->getClassName('test'));
     $this->assertEquals('Zend\\Loader\\PluginClassLoader', $loader->getClassName('loader'));
 }