cookies.add(new Cookie("anotherName", "cookieValue1"));
List<SSEvent> events = ControllerUtil.performSseRequest(mockMvc, "sseProvider",
"messageCookieValue3", null, null, cookies);
assertThat(events).hasSize(1);
SSEvent event = events.get(0);
assertThat(event.getEvent()).isEqualTo("messageCookieValue3");
assertThat(event.getComment()).isNull();
assertThat(event.getData()).isEqualTo("cookieValue1");
assertThat(event.getId()).isNull();
assertThat(event.getRetry()).isNull();
}