/*
 * Copyright 2007 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.system.core;

import java.io.Serializable;

import org.wamblee.system.core.DefaultProvidedInterface;
import org.wamblee.system.core.DefaultRequiredInterface;
import org.wamblee.system.core.ProvidedInterface;
import org.wamblee.system.core.RequiredInterface;

import junit.framework.TestCase;

public class DefaultInterfaceDescriptorTest extends TestCase {

	public void testOneRequiredOneProvidedMatch() { 
		ProvidedInterface provided = new DefaultProvidedInterface("name", String.class);
		RequiredInterface required = new DefaultRequiredInterface("name", String.class);
		assertTrue(required.implementedBy(provided));
	}
	
	public void testOneRequiredOneProvidedMatchSubClass() { 
		ProvidedInterface provided = new DefaultProvidedInterface("name", Integer.class);
		RequiredInterface required = new DefaultRequiredInterface("name", Number.class);
		assertTrue(required.implementedBy(provided));
	}
	
	public void testOneRequiredOneProvidedNoMatch() { 
		ProvidedInterface provided = new DefaultProvidedInterface("name", String.class);
		RequiredInterface required = new DefaultRequiredInterface("name", Number.class);
		assertFalse(required.implementedBy(provided));
	}
	
	public void testOneRequiredMultipleProvidedMatch() { 
		ProvidedInterface provided = new DefaultProvidedInterface("name", 
				new Class[] { String.class, Integer.class} );
		RequiredInterface required = new DefaultRequiredInterface("name", String.class);
		assertTrue(required.implementedBy(provided));
	}
	
	private static class MyMultiple implements Runnable, Serializable { 
		@Override
		public void run() {
			// Empty	
		}
	}
	
	public void testMultipleRequiredOneProvidedMatch() { 
		ProvidedInterface provided = new DefaultProvidedInterface("name", 
				MyMultiple.class );
		RequiredInterface required = new DefaultRequiredInterface("name", 
				new Class[] {Runnable.class, Serializable.class} );
		assertTrue(required.implementedBy(provided));
	}
	
	public void testMultipleRequiredOneProvidedNoMatch() { 
		ProvidedInterface provided = new DefaultProvidedInterface("name", 
				MyMultiple.class );
		RequiredInterface required = new DefaultRequiredInterface("name", 
				new Class[] { String.class, Runnable.class} );
		assertFalse(required.implementedBy(provided));
	}
	
	public void testMultipleRequiredMultipleProvidedMatch() { 
		ProvidedInterface provided = new DefaultProvidedInterface("name", 
				new Class[] { Runnable.class, Serializable.class, String.class}  );
		RequiredInterface required = new DefaultRequiredInterface("name", 
				new Class[] {Runnable.class, Serializable.class} );
		assertTrue(required.implementedBy(provided));
	}
	
	public void testPrimitiveAndWrapperType() { 
		RequiredInterface req1 = new DefaultRequiredInterface("req1", int.class);
		RequiredInterface req2 = new DefaultRequiredInterface("req1", Integer.class);
		ProvidedInterface prov1 = new DefaultProvidedInterface("prov1", int.class);
		ProvidedInterface prov2 = new DefaultProvidedInterface("prov2", Integer.class);
		assertTrue(req1.implementedBy(prov1));
		assertTrue(req2.implementedBy(prov1));
		assertTrue(req1.implementedBy(prov2));
		assertTrue(req2.implementedBy(prov2));
	}
	
}