org.unitils.mock.dummy.DummyObjectUtil Maven / Gradle / Ivy
/*
*
* * Copyright 2010, Unitils.org
* *
* * 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
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*
*/
package org.unitils.mock.dummy;
import org.unitils.mock.core.proxy.ProxyInvocation;
import org.unitils.mock.core.proxy.ProxyInvocationHandler;
import org.unitils.mock.mockbehavior.MockBehavior;
import org.unitils.mock.mockbehavior.impl.DummyValueReturningMockBehavior;
import static org.unitils.mock.core.proxy.ProxyFactory.createProxy;
/**
* Class for handling the dummy object behavior. A dummy object is a proxy that will return default values for every method. This can be
* used to quickly create test objects without having to worry about correctly filling in every field.
*
* @author Filip Neven
* @author Tim Ducheyne
*/
public class DummyObjectUtil {
/**
* Creates the dummy proxy object.
*
* @param type The type for the proxy, not null
* @return The proxy, not null
*/
public static T createDummy(Class type) {
return createDummy(type, new DummyValueReturningMockBehavior());
}
public static T createDummy(Class type, MockBehavior mockBehaviour) {
String dummyName = type.getSimpleName();
return createProxy(dummyName, new DummyObjectInvocationHandler(type, mockBehaviour), type, DummyObject.class, Cloneable.class);
}
/**
* Invocation handler for the dummy proxy object that will return default values for every invocation.
*/
public static class DummyObjectInvocationHandler implements ProxyInvocationHandler {
/* The type of the dummy object */
private Class dummyObjectType;
/* The hash code that is returned when the hashCode method is called */
private Integer dummyObjectHashCode = new Object().hashCode();
/* The behavior that will return the default values */
private MockBehavior dummyObjectBehavior;
public DummyObjectInvocationHandler(Class dummyObjectType, MockBehavior mockBehavior) {
this.dummyObjectType = dummyObjectType;
this.dummyObjectBehavior = mockBehavior;
}
/**
* Handles the given method invocation of the dummy object.
*
* @param invocation The method invocation, not null
* @return The result value for the method invocation
*/
public Object handleInvocation(ProxyInvocation invocation) throws Throwable {
return dummyObjectBehavior.execute(invocation);
}
}
}