dummy.java

不管是测试驱动开发或者是其它的开发模式

/*  Copyright (c) 2000-2004 jMock.org
 */
package org.jmock.util;

import org.jmock.core.CoreMock;
import org.jmock.core.Formatting;
import org.jmock.core.Invocation;
import org.jmock.core.InvocationMocker;
import org.jmock.core.matcher.StatelessInvocationMatcher;
import org.jmock.core.stub.CustomStub;


public class Dummy
{
    private Dummy() {
        /* This class cannot be instantiated. */
    }

    public static Object newDummy( Class interfaceClass ) {
        return newDummy(interfaceClass, "dummy" + Formatting.classShortName(interfaceClass));
    }

    public static Object newDummy( final Class interfaceClass, final String name ) {
        CoreMock mock = new CoreMock(interfaceClass, name);
        InvocationMocker mocker = new InvocationMocker();

        mocker.addMatcher(new StatelessInvocationMatcher()
        {
            public boolean matches( Invocation invocation ) {
                return invocation.invokedMethod.getDeclaringClass() == interfaceClass;
            }

            public StringBuffer describeTo( StringBuffer buf ) {
                return buf.append("any invokedMethod declared in " + interfaceClass);
            }
        });
        mocker.setStub(new CustomStub("dummy invokedMethod")
        {
            public Object invoke( Invocation invocation ) throws Throwable {
                throw new NotImplementedException(invocation.invokedMethod.getName() + "called on " + name);
            }
        });

        mock.addInvokable(mocker);

        return mock.proxy();
    }

    public static Object newDummy( final String name ) {
        return new Object()
        {
            public String toString() {
                return name;
            }
        };
    }
}