public virtual void TestDummy() { MockDirectoryWrapper dir = NewMockDirectory(); dir.AssertNoUnrefencedFilesOnClose = true; IndexWriter iw = new IndexWriter(dir, new IndexWriterConfig(LuceneTestCase.TEST_VERSION_CURRENT, null)); iw.AddDocument(new Document()); iw.Dispose(); IndexOutput output = dir.CreateOutput("_hello.world", IOContext.DEFAULT); output.writeString("i am unreferenced!"); output.Dispose(); dir.Sync(CollectionsHelper.Singleton("_hello.world")); dir.Dispose(); }