protected void codecVeryLargeTest(final CompressionCodec codec, final double sigma)
    throws Exception {
    RandomDistribution.DiscreteRNG rng =
      new RandomDistribution.Zipf(new Random(), 0, Byte.MAX_VALUE, sigma);
    final byte[][] input = new byte[1][VERY_LARGE_SIZE];
    fill(rng, input);
    codecTest(codec, input);
  }
Test with a very large input (100MB) as a single input buffer.
hbase-common/src/test/java/org/apache/hadoop/hbase/io/compress/CompressionTestBase.java