/*
 * Copyright 2005-2010 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.wamblee.general;

import static org.mockito.Mockito.*;

import org.apache.derby.impl.sql.execute.OnceResultSet;
import org.junit.Before;
import org.junit.Test;

public class SerializableProxyFactoryTest {

    public static interface MyInterface {
        void doSomething();
    }

    private MyInterface intf;

    @Before
    public void setUp() {
        intf = mock(MyInterface.class);
    }

    @Test
    public void testProxyWorks() {
        SerializableProxyFactory<MyInterface> factory = new SerializableProxyFactory<MyInterface>(
            MyInterface.class, intf);
        MyInterface proxy = factory.getProxy();
        proxy.doSomething();
        verify(intf).doSomething();
    }

    @Test
    public void testProxiesAreUnique() {
        SerializableProxyFactory<MyInterface> factory1 = new SerializableProxyFactory<MyInterface>(
            MyInterface.class, intf);
        MyInterface proxy1 = factory1.getProxy();

        MyInterface intf2 = mock(MyInterface.class);
        SerializableProxyFactory<MyInterface> factory2 = new SerializableProxyFactory<MyInterface>(
            MyInterface.class, intf2);
        MyInterface proxy2 = factory2.getProxy();

        proxy1.doSomething();
        verify(intf, times(1)).doSomething();
        verifyNoMoreInteractions(intf);
        verifyNoMoreInteractions(intf2);

        reset(intf);
        reset(intf2);

        proxy2.doSomething();
        verify(intf2, times(1)).doSomething();
        verifyNoMoreInteractions(intf);
        verifyNoMoreInteractions(intf2);
    }

    @Test
    public void testStillWorksAfterSerialization() throws Exception {
        SerializableProxyFactory<MyInterface> factory = new SerializableProxyFactory<MyInterface>(
            MyInterface.class, intf);
        MyInterface proxy = factory.getProxy();

        MyInterface deserialized = ObjectSerializationUtils.deserialize(
            ObjectSerializationUtils.serialize(proxy), MyInterface.class);
        deserialized.doSomething();
        verify(intf).doSomething();
    }

    @Test(expected = IllegalArgumentException.class)
    public void testWrongServiceType() {
        SerializableProxyFactory factory = new SerializableProxyFactory(
            MyInterface.class, "hello");
    }

    @Test(expected = IllegalArgumentException.class)
    public void testNotAnInterface() {
        SerializableProxyFactory factory = new SerializableProxyFactory(
            String.class, "hello");
    }
}