docstr: RuleDescriptionParser - present - One Field
docstr_tok: ["RuleDescriptionParser","-","present","-","One","Field"]
code: def test_simple():
      """RuleDescriptionParser - present - One Field"""
      case = """
  author: Derek Wang
  """
  
      data = RuleDescriptionParser.present(case)
      assert_equal(
          data,
          {"author": "Derek Wang", "description": "", "fields": {}},
      )
  
imports: from nose.tools import assert_equal
  from streamalert.shared.description import RuleDescriptionParser
label_desc: Use image node_id 1 for calling the TestRuleDescriptionParserPresent obj's underlying member method code with example usage: obj.test_simple() without return types