/** Confirm that cloning works. */
public void testCloning() {
StackedBarRenderer r1 = new StackedBarRenderer();
StackedBarRenderer r2 = null;
try {
r2 = (StackedBarRenderer) r1.clone();
} catch (CloneNotSupportedException e) {
System.err.println("Failed to clone.");
}
assertTrue(r1 != r2);
assertTrue(r1.getClass() == r2.getClass());
assertTrue(r1.equals(r2));
}
