Lucene.Net.Search.TestSearcherManager.TestEnsureOpen C# (CSharp) Method

        public virtual void TestEnsureOpen()
        {
            Directory dir = NewDirectory();
            (new IndexWriter(dir, new IndexWriterConfig(TEST_VERSION_CURRENT, null))).Dispose();
            SearcherManager sm = new SearcherManager(dir, null);
            IndexSearcher s = sm.Acquire();
            sm.Dispose();

            // this should succeed;
            sm.Release(s);

            try
            {
                // this should fail
                sm.Acquire();
            }
            catch (AlreadyClosedException e)
            {
                // ok
            }

            try
            {
                // this should fail
                sm.MaybeRefresh();
            }
            catch (AlreadyClosedException e)
            {
                // ok
            }
            dir.Dispose();
        }