public static void testConversion(
      final String columnNamesStr,
      final String columnsTypeStr,
      final String actualSchema) throws Exception {
    testConversion(columnNamesStr, columnsTypeStr, actualSchema, null);
  }
Only use if Configuration/HiveConf not needed for converting schema.
ql/src/test/org/apache/hadoop/hive/ql/io/parquet/HiveParquetSchemaTestUtils.java