/*
* Copyright 2013-2016 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.springframework.cloud.netflix.rx;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotNull;
import static org.springframework.http.MediaType.APPLICATION_JSON_UTF8;
import java.util.Date;
import java.util.GregorianCalendar;
import java.util.TimeZone;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.boot.test.context.SpringBootTest.WebEnvironment;
import org.springframework.boot.test.web.client.TestRestTemplate;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.test.annotation.DirtiesContext;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.servlet.mvc.method.annotation.SseEmitter;
import com.fasterxml.jackson.annotation.JsonCreator;
import com.fasterxml.jackson.annotation.JsonProperty;
import rx.Observable;
/**
* Tests the {@link ObservableSseEmitter} class.
*
* @author Spencer Gibb
* @author Jakub Narloch
*/
@RunWith(SpringJUnit4ClassRunner.class)
@SpringBootTest(classes = ObservableSseEmitterTest.Application.class, webEnvironment = WebEnvironment.RANDOM_PORT)
@DirtiesContext
public class ObservableSseEmitterTest {
@Value("${local.server.port}")
private int port = 0;
private TestRestTemplate restTemplate = new TestRestTemplate();
@Configuration
@EnableAutoConfiguration
@RestController
protected static class Application {
// tag::rx_observable_sse[]
@RequestMapping(method = RequestMethod.GET, value = "/sse")
public SseEmitter single() {
return RxResponse.sse(Observable.just("single value"));
}
@RequestMapping(method = RequestMethod.GET, value = "/messages")
public SseEmitter messages() {
return RxResponse.sse(Observable.just("message 1", "message 2", "message 3"));
}
@RequestMapping(method = RequestMethod.GET, value = "/events")
public SseEmitter event() {
return RxResponse.sse(APPLICATION_JSON_UTF8,
Observable.just(new EventDto("Spring io", getDate(2016, 5, 19)),
new EventDto("SpringOnePlatform", getDate(2016, 8, 1))));
}
// end::rx_observable_sse[]
}
@Test
public void shouldRetrieveSse() {
// when
ResponseEntity<String> response = restTemplate.getForEntity(path("/sse"),
String.class);
// then
assertNotNull(response);
assertEquals(HttpStatus.OK, response.getStatusCode());
assertEquals("data:single value\n\n", response.getBody());
}
@Test
public void shouldRetrieveSseWithMultipleMessages() {
// when
ResponseEntity<String> response = restTemplate.getForEntity(path("/messages"),
String.class);
// then
assertNotNull(response);
assertEquals(HttpStatus.OK, response.getStatusCode());
assertEquals("data:message 1\n\ndata:message 2\n\ndata:message 3\n\n",
response.getBody());
}
@Test
public void shouldRetrieveJsonOverSseWithMultipleMessages() {
// when
ResponseEntity<String> response = restTemplate.getForEntity(path("/events"),
String.class);
// then
assertNotNull(response);
assertEquals(HttpStatus.OK, response.getStatusCode());
assertEquals(
"data:{\"name\":\"Spring io\",\"date\":1466337600000}\n\ndata:{\"name\":\"SpringOnePlatform\",\"date\":1472731200000}\n\n",
response.getBody());
}
private String path(String context) {
return String.format("http://localhost:%d%s", port, context);
}
private static Date getDate(int year, int month, int day) {
GregorianCalendar calendar = new GregorianCalendar(year, month, day, 12, 0, 0);
calendar.setTimeZone(TimeZone.getTimeZone("UTC"));
return calendar.getTime();
}
/**
* A simple DTO used for testing purpose.
*
* @author Jakub Narloch
*/
static class EventDto {
private final String name;
private final Date date;
@JsonCreator
public EventDto(@JsonProperty("name") String name,
@JsonProperty("date") Date date) {
this.name = name;
this.date = date;
}
public String getName() {
return name;
}
public Date getDate() {
return date;
}
}
}