/*
* 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.method.annotation;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import org.springframework.core.MethodParameter;
import org.springframework.mock.web.test.MockHttpServletRequest;
import org.springframework.web.bind.support.WebArgumentResolver;
import org.springframework.web.context.request.NativeWebRequest;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletWebRequest;
import static org.junit.Assert.*;
import static org.mockito.BDDMockito.*;
/**
* Test fixture with {@link WebArgumentResolverAdapterTests}.
*
* @author Arjen Poutsma
* @author Rossen Stoyanchev
*/
public class WebArgumentResolverAdapterTests {
private TestWebArgumentResolverAdapter adapter;
private WebArgumentResolver adaptee;
private MethodParameter parameter;
private NativeWebRequest webRequest;
@Before
public void setUp() throws Exception {
adaptee = mock(WebArgumentResolver.class);
adapter = new TestWebArgumentResolverAdapter(adaptee);
parameter = new MethodParameter(getClass().getMethod("handle", Integer.TYPE), 0);
webRequest = new ServletWebRequest(new MockHttpServletRequest());
// Expose request to the current thread (for SpEL expressions)
RequestContextHolder.setRequestAttributes(webRequest);
}
@After
public void resetRequestContextHolder() {
RequestContextHolder.resetRequestAttributes();
}
@Test
public void supportsParameter() throws Exception {
given(adaptee.resolveArgument(parameter, webRequest)).willReturn(42);
assertTrue("Parameter not supported", adapter.supportsParameter(parameter));
verify(adaptee).resolveArgument(parameter, webRequest);
}
@Test
public void supportsParameterUnresolved() throws Exception {
given(adaptee.resolveArgument(parameter, webRequest)).willReturn(WebArgumentResolver.UNRESOLVED);
assertFalse("Parameter supported", adapter.supportsParameter(parameter));
verify(adaptee).resolveArgument(parameter, webRequest);
}
@Test
public void supportsParameterWrongType() throws Exception {
given(adaptee.resolveArgument(parameter, webRequest)).willReturn("Foo");
assertFalse("Parameter supported", adapter.supportsParameter(parameter));
verify(adaptee).resolveArgument(parameter, webRequest);
}
@Test
public void supportsParameterThrowsException() throws Exception {
given(adaptee.resolveArgument(parameter, webRequest)).willThrow(new Exception());
assertFalse("Parameter supported", adapter.supportsParameter(parameter));
verify(adaptee).resolveArgument(parameter, webRequest);
}
@Test
public void resolveArgument() throws Exception {
int expected = 42;
given(adaptee.resolveArgument(parameter, webRequest)).willReturn(expected);
Object result = adapter.resolveArgument(parameter, null, webRequest, null);
assertEquals("Invalid result", expected, result);
}
@Test(expected = IllegalStateException.class)
public void resolveArgumentUnresolved() throws Exception {
given(adaptee.resolveArgument(parameter, webRequest)).willReturn(WebArgumentResolver.UNRESOLVED);
adapter.resolveArgument(parameter, null, webRequest, null);
}
@Test(expected = IllegalStateException.class)
public void resolveArgumentWrongType() throws Exception {
given(adaptee.resolveArgument(parameter, webRequest)).willReturn("Foo");
adapter.resolveArgument(parameter, null, webRequest, null);
}
@Test(expected = Exception.class)
public void resolveArgumentThrowsException() throws Exception {
given(adaptee.resolveArgument(parameter, webRequest)).willThrow(new Exception());
adapter.resolveArgument(parameter, null, webRequest, null);
}
public void handle(int param) {
}
private class TestWebArgumentResolverAdapter extends AbstractWebArgumentResolverAdapter {
public TestWebArgumentResolverAdapter(WebArgumentResolver adaptee) {
super(adaptee);
}
@Override
protected NativeWebRequest getWebRequest() {
return WebArgumentResolverAdapterTests.this.webRequest;
}
}
}