HashMap attributes = new HashMap();
attributes.put(TextAttribute.BACKGROUND, Color.red);
attributes.put(TextAttribute.FOREGROUND, Color.yellow);
as.addAttributes(attributes, 2, 4);
AttributedCharacterIterator aci = as.getIterator();
aci.first();
harness.check(aci.getRunStart(TextAttribute.BACKGROUND), 0);
harness.check(aci.getRunLimit(TextAttribute.BACKGROUND), 2);
aci.next();
aci.next();
harness.check(aci.getRunStart(TextAttribute.BACKGROUND), 2);