public function testSetRootNodeName() {
$obj = new ScalarDummy();
$obj->xmlFoo = "foo";
$this->encoder
->setRootNodeName('test');
$expected = '<?xml version="1.0"?>' . "\n" . '<test>foo</test>' . "\n";
$this
->assertEquals($expected, $this->encoder
->encode($obj, 'xml'));
}