class_docstr: Test class for CSVParser
class_docstr_tok: ["Test","class","for","CSVParser"]
code: def _default_schema(cls):
      return OrderedDict(
          [
              ("host", "string"),
              ("date", "string"),
              ("message", "string"),
          ]
      )
  
file_path: streamalert/tests/unit/streamalert/classifier/test_parsers_csv.py
imports: from collections import OrderedDict
  import json
  from nose.tools import assert_equal
  from streamalert.classifier.parsers import CSVParser
label_desc: Use image node_id 1 for calling the TestCSVParser obj's underlying member method code with example usage: obj._default_schema(cls) and returns: OrderedDict