@Test public void a_shouldConnectinWithMailBox() { String json = given() .contentType(ContentType.JSON) .accept(ContentType.JSON) .body(myMessageProvider) .expect() .statusCode(OK) .log() .ifError() .post(CONNECT) .andReturn() .asString(); myMessageProvider = given(json).getObject("", MyMessageProvider.class); assertThat(myMessageProvider.isConnected(), is(true)); }