package com.cedarsoftware.util.io;

import java.util.Collections;
import java.util.List;

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

/**
 * @author John DeRegnaucourt (jdereg@gmail.com)
 *         <br>
 *         Copyright (c) Cedar Software LLC
 *         <br><br>
 *         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
 *         <br><br>
 *         http://www.apache.org/licenses/LICENSE-2.0
 *         <br><br>
 *         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.
 */
public class TestEmptyListForJdk17 {

    @Test
    public void testEmptyListJDK17() {
        final Object o = Collections.emptyList();

        String json = JsonWriter.objectToJson(o);
        List es = (List) JsonReader.jsonToJava(json);

        Assert.assertTrue(es.isEmpty());
        Assert.assertEquals(Collections.EMPTY_LIST.getClass(), es.getClass());
    }

}
