@Test
  public void testHeuristicResultCacheFilesAndSizeLengthMismatch() {
    jobConf.setProperty("mapreduce.job.cache.files.filesizes", "100,200");
    MapReduceApplicationData data = new MapReduceApplicationData().setJobConf(jobConf);
    HeuristicResult result = _heuristic.apply(data);
    assertTrue("Failed to match on expected severity", result.getSeverity() == Severity.MODERATE);
  }
File size not found for all the files in cache.
test/com/linkedin/drelephant/mapreduce/heuristics/DistributedCacheLimitHeuristicTest.java