ObjectMapper jsonMapper = injector.getInstance(DefaultObjectMapper.class);
Sink sink = jsonMapper.readValue(desc, new TypeReference<Sink>(){});
sink.open();
sink.writeTo(new StringMessage("routingKey", "testMessage"));
assertEquals(sink.getStat(), "sent: 1" + "\n" + "lost: 0");
TestConnectionPool.checkMessageCount(servers, 1);
sink.close();