vsop-479 commented on PR #11888:
URL: https://github.com/apache/lucene/pull/11888#issuecomment-1999256752

   @jpountz 
   I want to move `subCheckBinarySearch` to `BasePostingsFormatTestCase` to 
make this change forward compatible, by judging whether `IndexWriterConfig`  is 
set DefaultPostingsFormat like this:
   ````
   if (TestUtil.getDefaultPostingsFormat()
           .getName()
           .equals(TestUtil.getPostingsFormat(iwc.getCodec(), "id"))) {
         // test target greater than the last entry of matched block,
       }
   ````
   But it won't pass if this DefaultPostingsFormat do not use 
`DEFAULT_MIN_BLOCK_SIZE` and `DEFAULT_MAX_BLOCK_SIZE`, such as 
`TestPerFieldPostingsFormat`.
   
   
   I also tried to set DefaultCodec to test target greater than the last entry 
of matched block case, like this:
   ````
   iwc.setCodec(TestUtil.getDefaultCodec());
   ````
   `TestSTUniformSplitPostingFormat.checkEncoding`  won't pass this, because it 
must use its own `FieldsConsumer` to set states like `blocksEncoded`.
   
   Do you have any idea about this? 
   Can we expose `minTermBlockSize` and `maxTermBlockSize` in 
`LuceneXXPostingsFormat` to a `DefaultPostingsFormat`, to let user use them?


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