@@ -0,0 +1,469 @@
+package org.jdesktop.swingx.graphics;%0A%0Aimport static org.hamcrest.CoreMatchers.is;%0Aimport static org.junit.Assert.assertThat;%0A%0Aimport java.awt.image.BufferedImage;%0A%0Aimport org.junit.Test;%0A%0Apublic class GraphicsUtilitiesTest %7B%0A    @Test%0A    public void testClear() %7B%0A        BufferedImage img = GraphicsUtilities.createCompatibleImage(1, 1);%0A        GraphicsUtilities.clear(img);%0A        assertThat(GraphicsUtilities.getPixels(img, 0, 0, 1, 1, null)%5B0%5D, is(0));%0A    %7D%0A%7D%0A

Add test for new clear image method.