/*
* Copyright 2002-2012 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.support;
import java.lang.reflect.Method;
import org.junit.Before;
import org.junit.Test;
import org.springframework.core.MethodParameter;
import static org.junit.Assert.*;
/**
* Test fixture with {@link HandlerMethodArgumentResolverComposite}.
*
* @author Rossen Stoyanchev
*/
public class HandlerMethodArgumentResolverCompositeTests {
private HandlerMethodArgumentResolverComposite resolvers;
private MethodParameter paramInt;
private MethodParameter paramStr;
@Before
public void setUp() throws Exception {
resolvers = new HandlerMethodArgumentResolverComposite();
Method method = getClass().getDeclaredMethod("handle", Integer.class, String.class);
paramInt = new MethodParameter(method, 0);
paramStr = new MethodParameter(method, 1);
}
@Test
public void supportsParameter() throws Exception {
registerResolver(Integer.class, null);
assertTrue(this.resolvers.supportsParameter(paramInt));
assertFalse(this.resolvers.supportsParameter(paramStr));
}
@Test
public void resolveArgument() throws Exception {
registerResolver(Integer.class, Integer.valueOf(55));
Object resolvedValue = this.resolvers.resolveArgument(paramInt, null, null, null);
assertEquals(Integer.valueOf(55), resolvedValue);
}
@Test
public void checkArgumentResolverOrder() throws Exception {
registerResolver(Integer.class, Integer.valueOf(1));
registerResolver(Integer.class, Integer.valueOf(2));
Object resolvedValue = this.resolvers.resolveArgument(paramInt, null, null, null);
assertEquals("Didn't use the first registered resolver", Integer.valueOf(1), resolvedValue);
}
@Test(expected = IllegalArgumentException.class)
public void noSuitableArgumentResolver() throws Exception {
this.resolvers.resolveArgument(paramStr, null, null, null);
}
protected StubArgumentResolver registerResolver(Class<?> supportedType, Object stubValue) {
StubArgumentResolver resolver = new StubArgumentResolver(supportedType, stubValue);
this.resolvers.addResolver(resolver);
return resolver;
}
@SuppressWarnings("unused")
private void handle(Integer arg1, String arg2) {
}
}