[HADOOP-6803] Add native gzip read/write coverage to TestCodec

• Type: Test
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.22.0
• Fix Version/s: 0.22.0
• Component/s: io
• Hadoop Flags: Reviewed
• Assignee: Eli Collins
• Reporter: Eli Collins
• Created: 02/Jun/10 23:11
• Updated: 12/Dec/11 06:19
• Resolved: 18/Aug/10 21:59

Description

Looking at ZlibCompressor I noticed that the finished member is never modified, and is therefore always false. This means ZlibCompressor#finished will always return false so CompressorStream#close loops indefinitely in finish:

 
      while (!compressor.finished()) {
        compress();
      }

I modifed TestCodec#testGzipCodecWrite to also cover writing using the native lib and confirmed the hang with jstack. The fix is simple, ZlibCompressor should record when it's been finished.