public override void SetUp() { base.SetUp(); Dir = NewFSDirectory(CreateTempDir("testDFBlockSize")); Iwc = NewIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(Random())); Iwc.SetCodec(TestUtil.AlwaysPostingsFormat(new Lucene41PostingsFormat())); Iw = new RandomIndexWriter(Random(), Dir, (IndexWriterConfig)Iwc.Clone()); Iw.RandomForceMerge = false; // we will ourselves }