Java SE (Java Platform, Standard Edition)

Hi

I have a class which extends JPanel and i want to write the unit test code for this class.

The class is shown below.

public class GFFAdditionalOptPanel extends JPanel
{	
	
	public GFFAdditionalOptPanel()
	{
		
	}
	
	public void paintComponent(Graphics g)
	{		
		if(GFFMain.gffMain.gffConfig.gffVersionOneRadioButton.isSelected() || 
				(!(GFFMain.gffMain.gffConfig.gffVersionTwoRadioButton.isSelected()&& 
						(GFFMain.gffMain.gffConfig.gffVersionOneRadioButton.isSelected()))))
		{
			Graphics2D g1d = (Graphics2D)g;		
			RoundRectangle2D additionalOptShape = new RoundRectangle2D.Float(5
	 				,0, (GFFMain.gffMain.gffConfig.bckGrndPanel.getWidth())*10/28, 
	 				(GFFMain.gffMain.gffConfig.bckGrndPanel.getHeight()/10), 25,25);	
			
			g1d.setPaint(new Color(49,99,152));
			g1d.fill(additionalOptShape);
			g1d.draw(additionalOptShape);
			
			RoundRectangle2D additionalOptGray = new RoundRectangle2D.Float(180
				,0, (GFFMain.gffMain.gffConfig.bckGrndPanel.getWidth())*10/28,
				(GFFMain.gffMain.gffConfig.bckGrndPanel.getHeight())/10, 20,20);
			
			g1d.setColor(new Color(219,219,219));
			g1d.fill(additionalOptGray);	
			g1d.draw(additionalOptGray);
			
			RoundRectangle2D additionalOptWhite = new RoundRectangle2D.Float(0
					,(GFFMain.gffMain.gffConfig.bckGrndPanel.getHeight())/8,
					(GFFMain.gffMain.gffConfig.bckGrndPanel.getWidth())*10/28,
					(GFFMain.gffMain.gffConfig.bckGrndPanel.getHeight())*3/20, 20,20);
				
				g1d.setColor(Color.WHITE);
				g1d.fill(additionalOptWhite);	
				g1d.draw(additionalOptWhite);				
		
		}
		if(GFFMain.gffMain.gffConfig.gffVersionTwoRadioButton.isSelected())
		{				
			Graphics2D g1d = (Graphics2D)g;		
			RoundRectangle2D additionalOptShape = new RoundRectangle2D.Float(5
	 				,0, (GFFMain.gffMain.gffConfig.bckGrndPanel.getWidth())*10/28, 
	 				(GFFMain.gffMain.gffConfig.bckGrndPanel.getHeight()/4), 25,25);	
			
			g1d.setPaint(new Color(49,99,152));
			g1d.fill(additionalOptShape);
			g1d.draw(additionalOptShape);
			
			RoundRectangle2D additionalOptGray = new RoundRectangle2D.Float(180
				,0, (GFFMain.gffMain.gffConfig.bckGrndPanel.getWidth())*10/28,
				(GFFMain.gffMain.gffConfig.bckGrndPanel.getHeight())/4, 20,20);
			
			g1d.setColor(new Color(219,219,219));
			g1d.fill(additionalOptGray);	
			g1d.draw(additionalOptGray);			
		}
	}
}

How do i write the unit test code for the above class.

Thanks
Archana