Bug 176450 Support link to CSS Feature(Model Part)
model/org.eclipse.birt.report.model.tests/test/org/eclipse/birt/report/model/library/LibraryThemeTest.java
LabelHandle label1 = (LabelHandle) libraryHandle.findElement( "label1" ); 		
		LabelHandle label2 = (LabelHandle) libraryHandle.findElement( "label2" ); 
		assertEquals( ColorPropertyType.BLACK, text1
				.getProperty( Style.COLOR_PROP ) );
		assertEquals( ColorPropertyType.RED, label1
				.getProperty( Style.COLOR_PROP ) );
		assertEquals( ColorPropertyType.RED, label2
				.getProperty( Style.COLOR_PROP ) );
		libraryHandle.getThemes( ).drop( theme1 );
		assertEquals( ColorPropertyType.BLACK, text1
				.getProperty( Style.COLOR_PROP ) );
		assertEquals( ColorPropertyType.BLACK, label1
				.getProperty( Style.COLOR_PROP ) );
		assertEquals( ColorPropertyType.BLACK, label2
				.getProperty( Style.COLOR_PROP ) );
		
		libraryHandle.getCommandStack( ).undo( );
		assertEquals( ColorPropertyType.RED, label1
				.getProperty( Style.COLOR_PROP ) );
		
		libraryHandle.getCommandStack( ).redo( );
		assertEquals( ColorPropertyType.BLACK, label1
				.getProperty( Style.COLOR_PROP ) );
	}
	/**
	 * @throws Exception
	 */
	public void testSetPropertyOnSeclector( ) throws Exception
	{
		openLibrary( "LibraryTheme.xml" );