/*
 * 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.junit.Assert.*;
import static org.mockito.Mockito.*;

import javax.naming.InitialContext;

import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import org.wamblee.general.LookupProxyFactory;
import org.wamblee.general.LookupProxyFactory.Lookup;
import org.wamblee.general.LookupProxyFactory.LookupException;

public class LookupProxyFactoryTest {

    private static final String NAA_NA_NA_NAA_NA = "naa, na, na, naa, na";

    private static interface MyInterface {
        int execute();
    }

    private MyInterface intf;
    private Lookup lookup;
    private MyInterface proxy;

    @Before
    public void setUp() throws Exception {
        intf = mock(MyInterface.class);
        lookup = mock(Lookup.class);
        
        LookupProxyFactory<MyInterface> factory = new LookupProxyFactory<MyInterface>(
            MyInterface.class, lookup); 
        proxy = factory.getProxy();
    }

    @After
    public void tearDown() throws Exception {
        // Empty.
    }

    @Test
    public void testFound() throws Exception {
        when(intf.execute()).thenReturn(1);
        when(lookup.lookup()).thenReturn(intf);

        assertEquals(1, proxy.execute());

    }

    @Test(expected = LookupException.class)
    public void testNotFoundAtJndi() throws Exception {
        when(lookup.lookup()).thenThrow(new RuntimeException("Object not found"));
        proxy.execute();
    }

    @Test(expected = LookupException.class)
    public void testWrongTypeAtJndi() throws Exception {
        when(lookup.lookup()).thenReturn("my string");
        when(intf.execute()).thenReturn(1);
        proxy.execute();
    }

    @Test(expected = LookupException.class)
    public void testNullAtJndi() throws Exception {
        when(lookup.lookup()).thenReturn(null);
        when(intf.execute()).thenReturn(1);
        proxy.execute();
    }

    @Test
    public void testFoundButInvocationThrowsException() throws Exception {
        when(intf.execute()).thenThrow(new RuntimeException(NAA_NA_NA_NAA_NA));
        when(lookup.lookup()).thenReturn(intf);
        try {
            proxy.execute();
        } catch (RuntimeException e) {
            assertEquals(NAA_NA_NA_NAA_NA, e.getMessage());
        }
    }

}