tests/org.eclipse.jface.tests.databinding/src/org/eclipse/core/tests/databinding/observable/set/UnionSetTest.java

/*******************************************************************************
 * Copyright (c) 2007 Brad Reynolds and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     Brad Reynolds - initial API and implementation
 ******************************************************************************/

package org.eclipse.core.tests.databinding.observable.set;

import junit.framework.Test;
import junit.framework.TestCase;

import org.eclipse.core.databinding.observable.IObservable;
import org.eclipse.core.databinding.observable.IObservableCollection;
import org.eclipse.core.databinding.observable.Realm;
import org.eclipse.core.databinding.observable.set.IObservableSet;
import org.eclipse.core.databinding.observable.set.UnionSet;
import org.eclipse.core.databinding.observable.set.WritableSet;
import org.eclipse.jface.conformance.databinding.AbstractObservableCollectionContractDelegate;
import org.eclipse.jface.conformance.databinding.ObservableCollectionContractTest;
import org.eclipse.jface.conformance.databinding.SuiteBuilder;

/**
 */
public class UnionSetTest extends TestCase {
	public static Test suite() {
		Delegate delegate = new Delegate();

		return new SuiteBuilder()
				.addObservableContractTest(
						ObservableCollectionContractTest.class, delegate)
				.build();
	}
	
	private static class Delegate extends
			AbstractObservableCollectionContractDelegate {
		private IObservableSet[] sets;

		private Delegate() {
		}

		public void setUp() {
			
			super.setUp();
		}

		public void tearDown() {
			sets = null;

			super.tearDown();
		}

		public void change(IObservable observable) {
			sets[0].add(Integer.toString(sets[0].size()));
		}

		public Object createElement(IObservableCollection collection) {
			return Integer.toString(collection.size());
		}

		public IObservableCollection createObservableCollection(Realm realm,
				int elementCount) {			
			sets = new IObservableSet[]{new WritableSet(realm), new WritableSet(realm)};
			
			IObservableSet set = new UnionSet(sets);

			for (int i = 0; i < elementCount; i++) {
				sets[0].add(Integer.toString(i));
			}

			return set;
		}
	}
}