test/core/Support/TestIDisposable.cs

/*
 *
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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.
 *
*/

using Lucene.Net.Analysis;
using Lucene.Net.Documents;
using Lucene.Net.Index;
using Lucene.Net.Store;
using NUnit.Framework;

namespace Lucene.Net.Support
{
    [TestFixture]
    public class TestIDisposable
    {
        [Test]
        public void TestReadersWriters()
        {
            Directory dir;
            
            using(dir = new RAMDirectory())
            {
                Document doc;
                IndexWriter writer;
                IndexReader reader;

                using (writer = new IndexWriter(dir, new WhitespaceAnalyzer(), true, IndexWriter.MaxFieldLength.UNLIMITED))
                {
                    Field field = new Field("name", "value", Field.Store.YES,Field.Index.ANALYZED);
                    doc = new Document();
                    doc.Add(field);
                    writer.AddDocument(doc);
                    writer.Commit();

                    using (reader = writer.GetReader())
                    {
                        IndexReader r1 = reader.Reopen();
                    }

                    Assert.Throws<AlreadyClosedException>(() => reader.Reopen(), "IndexReader shouldn't be open here");
                }
                
                Assert.Throws<AlreadyClosedException>(() => writer.AddDocument(doc), "IndexWriter shouldn't be open here");

                Assert.IsTrue(dir.isOpen_ForNUnit, "RAMDirectory");
            }
            Assert.IsFalse(dir.isOpen_ForNUnit, "RAMDirectory");
        }
    }
}