new AssertingPostingsFormat(),
new MemoryPostingsFormat(true, random.nextFloat()),
new MemoryPostingsFormat(false, random.nextFloat()));
addDocValues(avoidCodecs,
new Lucene42DocValuesFormat(),
new DiskDocValuesFormat(),
new SimpleTextDocValuesFormat(),
new AssertingDocValuesFormat(),
new CheapBastardDocValuesFormat());