package org.springblade.example.poi.util;

import org.junit.Assert;
import org.junit.Test;

import java.util.*;

/**
 * @author by jueyue on 19-10-8.
 */
public class UnmodifiableList {

	@Test
	public void test() {
		Collection collection =
			Collections.unmodifiableCollection(new ArrayList<>());
		Assert.assertTrue(collection.getClass().getName().contains("Unmodifiable"));
		List list =
			Collections.unmodifiableList(new ArrayList<>());
		Assert.assertTrue(list.getClass().getName().contains("Unmodifiable"));
		Set set =
			Collections.unmodifiableSet(new HashSet<>());
		Assert.assertTrue(set.getClass().getName().contains("Unmodifiable"));
	}
}
