/*
* Copyright 2002-2013 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.web.servlet;
import org.junit.Before;
import org.junit.Test;
import org.springframework.mock.web.test.MockHttpServletRequest;
import org.springframework.mock.web.test.MockHttpServletResponse;
import static org.junit.Assert.*;
import static org.mockito.BDDMockito.*;
/**
* A test fixture with HandlerExecutionChain and mock handler interceptors.
*
* @author Rossen Stoyanchev
*/
public class HandlerExecutionChainTests {
private HandlerExecutionChain chain;
private Object handler;
private MockHttpServletRequest request;
private MockHttpServletResponse response;
private AsyncHandlerInterceptor interceptor1;
private AsyncHandlerInterceptor interceptor2;
private AsyncHandlerInterceptor interceptor3;
@Before
public void setup() {
this.request = new MockHttpServletRequest();
this.response= new MockHttpServletResponse() ;
this.handler = new Object();
this.chain = new HandlerExecutionChain(this.handler);
this.interceptor1 = mock(AsyncHandlerInterceptor.class);
this.interceptor2 = mock(AsyncHandlerInterceptor.class);
this.interceptor3 = mock(AsyncHandlerInterceptor.class);
this.chain.addInterceptor(this.interceptor1);
this.chain.addInterceptor(this.interceptor2);
this.chain.addInterceptor(this.interceptor3);
}
@Test
public void successScenario() throws Exception {
ModelAndView mav = new ModelAndView();
given(this.interceptor1.preHandle(this.request, this.response, this.handler)).willReturn(true);
given(this.interceptor2.preHandle(this.request, this.response, this.handler)).willReturn(true);
given(this.interceptor3.preHandle(this.request, this.response, this.handler)).willReturn(true);
this.chain.applyPreHandle(request, response);
this.chain.applyPostHandle(request, response, mav);
this.chain.triggerAfterCompletion(this.request, this.response, null);
verify(this.interceptor1).postHandle(this.request, this.response, this.handler, mav);
verify(this.interceptor2).postHandle(this.request, this.response, this.handler, mav);
verify(this.interceptor3).postHandle(this.request, this.response, this.handler, mav);
verify(this.interceptor3).afterCompletion(this.request, this.response, this.handler, null);
verify(this.interceptor2).afterCompletion(this.request, this.response, this.handler, null);
verify(this.interceptor1).afterCompletion(this.request, this.response, this.handler, null);
}
@Test
public void successAsyncScenario() throws Exception {
given(this.interceptor1.preHandle(this.request, this.response, this.handler)).willReturn(true);
given(this.interceptor2.preHandle(this.request, this.response, this.handler)).willReturn(true);
given(this.interceptor3.preHandle(this.request, this.response, this.handler)).willReturn(true);
this.chain.applyPreHandle(request, response);
this.chain.applyAfterConcurrentHandlingStarted(request, response);
this.chain.triggerAfterCompletion(this.request, this.response, null);
verify(this.interceptor1).afterConcurrentHandlingStarted(request, response, this.handler);
verify(this.interceptor2).afterConcurrentHandlingStarted(request, response, this.handler);
verify(this.interceptor3).afterConcurrentHandlingStarted(request, response, this.handler);
}
@Test
public void earlyExitInPreHandle() throws Exception {
given(this.interceptor1.preHandle(this.request, this.response, this.handler)).willReturn(true);
given(this.interceptor2.preHandle(this.request, this.response, this.handler)).willReturn(false);
this.chain.applyPreHandle(request, response);
verify(this.interceptor1).afterCompletion(this.request, this.response, this.handler, null);
}
@Test
public void exceptionBeforePreHandle() throws Exception {
this.chain.triggerAfterCompletion(this.request, this.response, null);
verifyZeroInteractions(this.interceptor1, this.interceptor2, this.interceptor3);
}
@Test
public void exceptionDuringPreHandle() throws Exception {
Exception ex = new Exception("");
given(this.interceptor1.preHandle(this.request, this.response, this.handler)).willReturn(true);
given(this.interceptor2.preHandle(this.request, this.response, this.handler)).willThrow(ex);
try {
this.chain.applyPreHandle(request, response);
}
catch (Exception actual) {
assertSame(ex, actual);
}
this.chain.triggerAfterCompletion(this.request, this.response, ex);
verify(this.interceptor1).afterCompletion(this.request, this.response, this.handler, ex);
verify(this.interceptor3, never()).preHandle(this.request, this.response, this.handler);
}
@Test
public void exceptionAfterPreHandle() throws Exception {
Exception ex = new Exception("");
given(this.interceptor1.preHandle(this.request, this.response, this.handler)).willReturn(true);
given(this.interceptor2.preHandle(this.request, this.response, this.handler)).willReturn(true);
given(this.interceptor3.preHandle(this.request, this.response, this.handler)).willReturn(true);
this.chain.applyPreHandle(request, response);
this.chain.triggerAfterCompletion(this.request, this.response, ex);
verify(this.interceptor3).afterCompletion(this.request, this.response, this.handler, ex);
verify(this.interceptor2).afterCompletion(this.request, this.response, this.handler, ex);
verify(this.interceptor1).afterCompletion(this.request, this.response, this.handler, ex);
}
}