public function testGetNamespaces() {
$loader = new Twig_Loader_Filesystem(sys_get_temp_dir());
$this
->assertEquals(array(
'__main__',
), $loader
->getNamespaces());
$loader
->addPath(sys_get_temp_dir(), 'named');
$this
->assertEquals(array(
'__main__',
'named',
), $loader
->getNamespaces());
}