@Test
public void process() throws Exception {

    when(testExchange.getPattern()).thenReturn(ExchangePattern.InOnly);
    SUT.process(testExchange);
    when(testExchange.getPattern()).thenReturn(ExchangePattern.InOut);
    SUT.process(testExchange);
    when(testExchange.getIn().getBody()).thenReturn(2);
}