epr2 = new EPR(new URI("2"));
epr3 = new EPR(new URI("3"));
epr4 = new EPR(new URI("4"));
courier1 = new MockCourier(false);
courier2 = new MockCourier(new CourierException(""));
courier3 = new MockCourier(new MalformedEPRException(""));
courier4 = new MockCourier(true);
MockRegistry.register("cat", "service", epr1, courier1);
MockRegistry.register("cat", "service", epr2, courier2);
MockRegistry.register("cat", "service", epr3, courier3);