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/*
* Copyright 2002-2015 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.test.web.servlet.samples.standalone;
import java.io.StringWriter;
import java.util.Collection;
import java.util.concurrent.Callable;
import java.util.concurrent.CompletableFuture;
import java.util.concurrent.CopyOnWriteArrayList;
import org.junit.Test;
import org.springframework.http.HttpStatus;
import org.springframework.http.MediaType;
import org.springframework.test.web.Person;
import org.springframework.test.web.servlet.MockMvc;
import org.springframework.test.web.servlet.MvcResult;
import org.springframework.util.concurrent.ListenableFuture;
import org.springframework.util.concurrent.ListenableFutureTask;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseStatus;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.context.request.async.DeferredResult;
import static org.junit.Assert.*;
import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.*;
import static org.springframework.test.web.servlet.result.MockMvcResultHandlers.*;
import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.*;
import static org.springframework.test.web.servlet.setup.MockMvcBuilders.*;
/**
* Tests with asynchronous request handling.
*
* @author Rossen Stoyanchev
* @author Sebastien Deleuze
* @author Sam Brannen
* @author Jacek Suchenia
*/
public class AsyncTests {
private final AsyncController asyncController = new AsyncController();
private final MockMvc mockMvc = standaloneSetup(this.asyncController).build();
@Test
public void callable() throws Exception {
MvcResult mvcResult = this.mockMvc.perform(get("/1").param("callable", "true"))
.andExpect(request().asyncStarted())
.andExpect(request().asyncResult(new Person("Joe")))
.andReturn();
this.mockMvc.perform(asyncDispatch(mvcResult))
.andExpect(status().isOk())
.andExpect(content().contentType(MediaType.APPLICATION_JSON))
.andExpect(content().string("{\"name\":\"Joe\",\"someDouble\":0.0,\"someBoolean\":false}"));
}
@Test
public void deferredResult() throws Exception {
MvcResult mvcResult = this.mockMvc.perform(get("/1").param("deferredResult", "true"))
.andExpect(request().asyncStarted())
.andReturn();
this.asyncController.onMessage("Joe");
this.mockMvc.perform(asyncDispatch(mvcResult))
.andExpect(status().isOk())
.andExpect(content().contentType(MediaType.APPLICATION_JSON))
.andExpect(content().string("{\"name\":\"Joe\",\"someDouble\":0.0,\"someBoolean\":false}"));
}
@Test
public void deferredResultWithImmediateValue() throws Exception {
MvcResult mvcResult = this.mockMvc.perform(get("/1").param("deferredResultWithImmediateValue", "true"))
.andExpect(request().asyncStarted())
.andExpect(request().asyncResult(new Person("Joe")))
.andReturn();
this.mockMvc.perform(asyncDispatch(mvcResult))
.andExpect(status().isOk())
.andExpect(content().contentType(MediaType.APPLICATION_JSON))
.andExpect(content().string("{\"name\":\"Joe\",\"someDouble\":0.0,\"someBoolean\":false}"));
}
/**
* SPR-13079
*/
@Test
public void deferredResultWithDelayedError() throws Exception {
MvcResult mvcResult = this.mockMvc.perform(get("/1").param("deferredResultWithDelayedError", "true"))
.andExpect(request().asyncStarted())
.andReturn();
this.mockMvc.perform(asyncDispatch(mvcResult))
.andExpect(status().is5xxServerError())
.andExpect(content().string("Delayed Error"));
}
@Test
public void listenableFuture() throws Exception {
MvcResult mvcResult = this.mockMvc.perform(get("/1").param("listenableFuture", "true"))
.andExpect(request().asyncStarted())
.andReturn();
this.asyncController.onMessage("Joe");
this.mockMvc.perform(asyncDispatch(mvcResult))
.andExpect(status().isOk())
.andExpect(content().contentType(MediaType.APPLICATION_JSON))
.andExpect(content().string("{\"name\":\"Joe\",\"someDouble\":0.0,\"someBoolean\":false}"));
}
/**
* SPR-12597
*/
@Test
public void completableFutureWithImmediateValue() throws Exception {
MvcResult mvcResult = this.mockMvc.perform(get("/1").param("completableFutureWithImmediateValue", "true"))
.andExpect(request().asyncStarted())
.andReturn();
this.mockMvc.perform(asyncDispatch(mvcResult))
.andExpect(status().isOk())
.andExpect(content().contentType(MediaType.APPLICATION_JSON))
.andExpect(content().string("{\"name\":\"Joe\",\"someDouble\":0.0,\"someBoolean\":false}"));
}
/**
* SPR-12735
*/
@Test
public void printAsyncResult() throws Exception {
StringWriter writer = new StringWriter();
MvcResult mvcResult = this.mockMvc.perform(get("/1").param("deferredResult", "true"))
.andDo(print(writer))
.andExpect(request().asyncStarted())
.andReturn();
assertTrue(writer.toString().contains("Async started = true"));
writer = new StringWriter();
this.asyncController.onMessage("Joe");
this.mockMvc.perform(asyncDispatch(mvcResult))
.andDo(print(writer))
.andExpect(status().isOk())
.andExpect(content().contentType(MediaType.APPLICATION_JSON))
.andExpect(content().string("{\"name\":\"Joe\",\"someDouble\":0.0,\"someBoolean\":false}"));
assertTrue(writer.toString().contains("Async started = false"));
}
@RestController
@RequestMapping(path = "/{id}", produces = "application/json")
private static class AsyncController {
private final Collection<DeferredResult<Person>> deferredResults =
new CopyOnWriteArrayList<DeferredResult<Person>>();
private final Collection<ListenableFutureTask<Person>> futureTasks =
new CopyOnWriteArrayList<ListenableFutureTask<Person>>();
@RequestMapping(params = "callable")
public Callable<Person> getCallable() {
return () -> new Person("Joe");
}
@RequestMapping(params = "deferredResult")
public DeferredResult<Person> getDeferredResult() {
DeferredResult<Person> deferredResult = new DeferredResult<Person>();
this.deferredResults.add(deferredResult);
return deferredResult;
}
@RequestMapping(params = "deferredResultWithImmediateValue")
public DeferredResult<Person> getDeferredResultWithImmediateValue() {
DeferredResult<Person> deferredResult = new DeferredResult<Person>();
deferredResult.setResult(new Person("Joe"));
return deferredResult;
}
@RequestMapping(params = "deferredResultWithDelayedError")
public DeferredResult<Person> getDeferredResultWithDelayedError() {
final DeferredResult<Person> deferredResult = new DeferredResult<Person>();
new Thread() {
public void run() {
try {
Thread.sleep(100);
deferredResult.setErrorResult(new RuntimeException("Delayed Error"));
}
catch (InterruptedException e) {
/* no-op */
}
}
}.start();
return deferredResult;
}
@RequestMapping(params = "listenableFuture")
public ListenableFuture<Person> getListenableFuture() {
ListenableFutureTask<Person> futureTask = new ListenableFutureTask<Person>(() -> new Person("Joe"));
this.futureTasks.add(futureTask);
return futureTask;
}
@RequestMapping(params = "completableFutureWithImmediateValue")
public CompletableFuture<Person> getCompletableFutureWithImmediateValue() {
CompletableFuture<Person> future = new CompletableFuture<Person>();
future.complete(new Person("Joe"));
return future;
}
@ExceptionHandler(Exception.class)
@ResponseStatus(HttpStatus.INTERNAL_SERVER_ERROR)
public String errorHandler(Exception e) {
return e.getMessage();
}
public void onMessage(String name) {
for (DeferredResult<Person> deferredResult : this.deferredResults) {
deferredResult.setResult(new Person(name));
this.deferredResults.remove(deferredResult);
}
for (ListenableFutureTask<Person> futureTask : this.futureTasks) {
futureTask.run();
this.futureTasks.remove(futureTask);
}
}
}
}
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