{
AbstractTransformer validTransformer = (AbstractTransformer) this.getIncreaseByOneTransformer();
assertNotNull(validTransformer);
DefaultMuleMessage message = new DefaultMuleMessage(new Integer(0), muleContext);
Transformer messageTransformer = new TransformerChain(validTransformer, validTransformer, validTransformer);
message.applyTransformers((MuleEvent)null, messageTransformer);
Object transformedMessage = message.getPayload();
assertNotNull(transformedMessage);
assertEquals(new Integer(3), transformedMessage);