wgtmac commented on PR #14351:
URL: https://github.com/apache/arrow/pull/14351#issuecomment-1336409467

   > @pitrou Hi, I tried to add some unittest and pass the tests.
   > 
   > Now I generate some files from 
https://github.com/apache/parquet-mr/blob/master/parquet-hadoop/src/test/java/org/apache/parquet/hadoop/TestDataPageV1Checksums.java
 , should I first commit them to `parquet-test` project, and then testing them 
in C++?
   > 
   > By the way, I'm not familiar with parquet-mr, where does it testing 
`parquet-test`? If it has some parquet crc testing, I can just follow it. /cc 
@wgtmac
   
   I agree that we can add some test files generated by arrow and parquet-mr to 
parquet-testing submodule. And then add inter-op tests in both arrow and 
parquet-mr repos to do cross validation. FYI, I have added inter-op test for 
LZ4_RAW to parquet-mr: 
https://github.com/apache/parquet-mr/blob/master/parquet-hadoop/src/test/java/org/apache/parquet/hadoop/codec/TestInteropReadLz4RawCodec.java


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