public function testExtensionAttributes()
{
$extensionAttributes = $this->nickname->extensionAttributes;
$extensionAttributes['foo1'] = array('name' => 'foo1', 'value' => 'bar');
$extensionAttributes['foo2'] = array('name' => 'foo2', 'value' => 'rab');
$this->nickname->extensionAttributes = $extensionAttributes;
$this->assertEquals('bar', $this->nickname->extensionAttributes['foo1']['value']);
$this->assertEquals('rab', $this->nickname->extensionAttributes['foo2']['value']);
$nicknameXml = $this->nickname->saveXML();
$newNickname = new Extension\Nickname();
$newNickname->transferFromXML($nicknameXml);
$this->assertEquals('bar', $newNickname->extensionAttributes['foo1']['value']);
$this->assertEquals('rab', $newNickname->extensionAttributes['foo2']['value']);
}
