@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));
  }