jpa/tests/org.eclipse.jpt.utility.tests/src/org/eclipse/jpt/utility/tests/internal/model/value/ReadOnlyListValueModelTests.java

/*******************************************************************************
 * Copyright (c) 2007 Oracle. 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:
 *     Oracle - initial API and implementation
 ******************************************************************************/
package org.eclipse.jpt.utility.tests.internal.model.value;

import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import java.util.ListIterator;

import org.eclipse.jpt.utility.internal.CollectionTools;
import org.eclipse.jpt.utility.internal.model.value.AbstractReadOnlyListValueModel;
import org.eclipse.jpt.utility.internal.model.value.ListValueModel;
import org.eclipse.jpt.utility.tests.internal.TestTools;

import junit.framework.TestCase;

public class ReadOnlyListValueModelTests extends TestCase {
	private ListValueModel listHolder;
	private static List<String> list;


	public ReadOnlyListValueModelTests(String name) {
		super(name);
	}

	@Override
	protected void setUp() throws Exception {
		super.setUp();
		this.listHolder = this.buildListHolder();
	}

	private ListValueModel buildListHolder() {
		return new AbstractReadOnlyListValueModel() {
			public Object value() {
				return ReadOnlyListValueModelTests.list();
			}
		};
	}

	static ListIterator<String> list() {
		return getList().listIterator();
	}

	private static List<String> getList() {
		if (list == null) {
			list = buildList();
		}
		return list;
	}

	private static List<String> buildList() {
		List<String> result = new ArrayList<String>();
		result.add("foo");
		result.add("bar");
		return result;
	}

	@Override
	protected void tearDown() throws Exception {
		TestTools.clear(this);
		super.tearDown();
	}

	public void testGetItem() {
		List<String> expected = buildList();
		for (int i = 0; i < this.listHolder.size(); i++) {
			assertEquals(expected.get(i), this.listHolder.getItem(i));
		}
	}

	public void testValue() {
		assertEquals(buildList(), CollectionTools.list((Iterator) this.listHolder.value()));
	}

	public void testSize() {
		assertEquals(buildList().size(), this.listHolder.size());
	}

}