Job runMRCreate(Map<String, String> partitionValues, List<HCatFieldSchema> partitionColumns,
      List<HCatRecord> records, int writeCount, boolean assertWrite) throws Exception {
    return runMRCreate(partitionValues, partitionColumns, records, writeCount, assertWrite,
        true, Collections.emptyMap());
  }
Test constructor that sets the storage format class names provided by the test parameter.
hcatalog/core/src/test/java/org/apache/hive/hcatalog/mapreduce/HCatMapReduceTest.java