### Question:
MetaverseUtil { public static void enhanceEdge( Edge edge ) { String type = edge.getLabel(); String localizedType = Messages.getString( MESSAGE_PREFIX_LINKTYPE + type ); if ( !localizedType.startsWith( MESSAGE_FAILED_PREFIX ) ) { edge.setProperty( DictionaryConst.PROPERTY_TYPE_LOCALIZED, localizedType ); } }  static IDocumentController getDocumentController(); static void setDocumentController( IDocumentController docController ); static IDocument createDocument(
    INamespace namespace,
    Object content,
    String id,
    String name,
    String extension,
    String mimeType ); static void addLineageGraph( final IDocument document, Graph graph ); static void enhanceEdge( Edge edge ); static void enhanceVertex( Vertex vertex ); static Operations convertOperationsStringToMap( String operations ); static Runnable getAnalyzerRunner( final IDocumentAnalyzer analyzer, final IDocument document ); static void delay(); static final String MESSAGE_PREFIX_NODETYPE; static final String MESSAGE_PREFIX_LINKTYPE; static final String MESSAGE_PREFIX_CATEGORY; static final String MESSAGE_FAILED_PREFIX; }### Answer:
@Test public void testEnhanceEdge() { Graph graph = new TinkerGraph(); Vertex v1 = graph.addVertex( 1 ); Vertex v2 = graph.addVertex( 2 ); Edge edge = graph.addEdge( 3, v1, v2, "testLabel" ); MetaverseUtil.enhanceEdge( edge ); }