/
ExceptionHandlerTests.java
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/
ExceptionHandlerTests.java
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/*
* Copyright 2002-2020 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
*
* https://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 org.junit.Test;
import org.springframework.core.Ordered;
import org.springframework.core.annotation.Order;
import org.springframework.http.MediaType;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.ControllerAdvice;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.bind.annotation.RestControllerAdvice;
import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.*;
import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.*;
import static org.springframework.test.web.servlet.setup.MockMvcBuilders.*;
/**
* Exception handling via {@code @ExceptionHandler} method.
*
* @author Rossen Stoyanchev
* @author Sam Brannen
*/
public class ExceptionHandlerTests {
@Test
public void mvcLocalExceptionHandlerMethod() throws Exception {
standaloneSetup(new PersonController()).build()
.perform(get("/person/Clyde"))
.andExpect(status().isOk())
.andExpect(forwardedUrl("errorView"));
}
@Test
public void mvcGlobalExceptionHandlerMethod() throws Exception {
standaloneSetup(new PersonController()).setControllerAdvice(new GlobalExceptionHandler()).build()
.perform(get("/person/Bonnie"))
.andExpect(status().isOk())
.andExpect(forwardedUrl("globalErrorView"));
}
@Test
public void mvcGlobalExceptionHandlerMethodUsingClassArgument() throws Exception {
standaloneSetup(PersonController.class).setControllerAdvice(GlobalExceptionHandler.class).build()
.perform(get("/person/Bonnie"))
.andExpect(status().isOk())
.andExpect(forwardedUrl("globalErrorView"));
}
@Test
public void restNoException() throws Exception {
standaloneSetup(RestPersonController.class)
.setControllerAdvice(RestGlobalExceptionHandler.class, RestPersonControllerExceptionHandler.class).build()
.perform(get("/person/Yoda").accept(MediaType.APPLICATION_JSON))
.andExpect(status().isOk())
.andExpect(jsonPath("$.name").value("Yoda"));
}
@Test
public void restLocalExceptionHandlerMethod() throws Exception {
standaloneSetup(RestPersonController.class)
.setControllerAdvice(RestGlobalExceptionHandler.class, RestPersonControllerExceptionHandler.class).build()
.perform(get("/person/Luke").accept(MediaType.APPLICATION_JSON))
.andExpect(status().isOk())
.andExpect(jsonPath("$.error").value("local - IllegalArgumentException"));
}
@Test
public void restGlobalExceptionHandlerMethod() throws Exception {
standaloneSetup(RestPersonController.class)
.setControllerAdvice(RestGlobalExceptionHandler.class).build()
.perform(get("/person/Leia").accept(MediaType.APPLICATION_JSON))
.andExpect(status().isOk())
.andExpect(jsonPath("$.error").value("global - IllegalStateException"));
}
@Test
public void restGlobalRestPersonControllerExceptionHandlerTakesPrecedenceOverGlobalExceptionHandler() throws Exception {
standaloneSetup(RestPersonController.class)
.setControllerAdvice(RestGlobalExceptionHandler.class, RestPersonControllerExceptionHandler.class).build()
.perform(get("/person/Leia").accept(MediaType.APPLICATION_JSON))
.andExpect(status().isOk())
.andExpect(jsonPath("$.error").value("globalPersonController - IllegalStateException"));
}
@Test // gh-25520
public void restNoHandlerFound() throws Exception {
standaloneSetup(RestPersonController.class)
.setControllerAdvice(RestGlobalExceptionHandler.class, RestPersonControllerExceptionHandler.class)
.addDispatcherServletCustomizer(dispatcherServlet -> dispatcherServlet.setThrowExceptionIfNoHandlerFound(true))
.build()
.perform(get("/bogus").accept(MediaType.APPLICATION_JSON))
.andExpect(status().isOk())
.andExpect(jsonPath("$.error").value("global - NoHandlerFoundException"));
}
@Controller
private static class PersonController {
@GetMapping("/person/{name}")
public String show(@PathVariable String name) {
if (name.equals("Clyde")) {
throw new IllegalArgumentException("simulated exception");
}
else if (name.equals("Bonnie")) {
throw new IllegalStateException("simulated exception");
}
return "person/show";
}
@ExceptionHandler
public String handleException(IllegalArgumentException exception) {
return "errorView";
}
}
@ControllerAdvice
private static class GlobalExceptionHandler {
@ExceptionHandler
public String handleException(IllegalStateException exception) {
return "globalErrorView";
}
}
@RestController
private static class RestPersonController {
@GetMapping("/person/{name}")
Person get(@PathVariable String name) {
switch (name) {
case "Luke":
throw new IllegalArgumentException();
case "Leia":
throw new IllegalStateException();
default:
return new Person("Yoda");
}
}
@ExceptionHandler
Error handleException(IllegalArgumentException exception) {
return new Error("local - " + exception.getClass().getSimpleName());
}
}
@RestControllerAdvice(assignableTypes = RestPersonController.class)
@Order(Ordered.HIGHEST_PRECEDENCE)
private static class RestPersonControllerExceptionHandler {
@ExceptionHandler
Error handleException(Throwable exception) {
return new Error("globalPersonController - " + exception.getClass().getSimpleName());
}
}
@RestControllerAdvice
@Order(Ordered.LOWEST_PRECEDENCE)
private static class RestGlobalExceptionHandler {
@ExceptionHandler
Error handleException(Throwable exception) {
return new Error( "global - " + exception.getClass().getSimpleName());
}
}
static class Person {
private final String name;
Person(String name) {
this.name = name;
}
public String getName() {
return name;
}
}
static class Error {
private final String error;
Error(String error) {
this.error = error;
}
public String getError() {
return error;
}
}
}