public function testAutoDiscoveryTraits()
{
$content = '
<xs:schema targetNamespace="http://www.example.com" xmlns:xs="http://www.w3.org/2001/XMLSchema">
<xs:group name="element-1">
</xs:group>
<xs:attributeGroup name="element-2"/>
<xs:attribute name="element-3" type="xs:string"/>
</xs:schema>
';
$classes = $this->getClasses($content);
$this->assertCount(0, $classes);
}