Bug 183918 get relative file path of linkage library
model/org.eclipse.birt.report.model.tests/test/org/eclipse/birt/report/model/library/DesignLoadLibraryTest.java
LabelHandle designLabel3 = (LabelHandle) designHandle
				.getElementFactory( ).newElementFrom( libLabel1, "label3" ); 
		
		iter = libLabel1.derivedIterator( );
		assertEquals( designHandle.findElement( "label2" ), iter.next( ) ); 
		assertEquals( designLabel3, iter.next( ) );
		assertFalse( iter.hasNext( ) );
		
		designHandle.getBody( ).add( designLabel3 );
		designLabel3.setText( "New Label3" ); 
		designLabel3.setStyleName( "style1" ); 
		
		assertEquals( "New Label3", designLabel3.getText( ) ); 
		assertEquals(
				designHandle.findStyle( "style1" ), designLabel3.getStyle( ) ); 
		
		assertEquals(
				"blue", designLabel3.getPrivateStyle( ).getColor( ).getStringValue( ) ); 
		
		assertEquals( "15cm", designLabel3.getX( ).getStringValue( ) ); 
		assertEquals(
				"18pt", designLabel3.getPrivateStyle( ).getFontSize( ).getStringValue( ) ); 
		
		assertEquals( "5cm", designLabel3.getY( ).getStringValue( ) ); 
		
		assertEquals( "bolder", designLabel3.getPrivateStyle( ).getFontWeight( ) ); 
		
		designLabel3.drop( );
		
		iter = libLabel1.derivedIterator( );