new_contents: # -*- coding: utf-8 -*-
  
  import os
  import ast
  import unittest
  from ansible import utils
  
  
  class TestModules(unittest.TestCase):
  
      def list_all_modules(self):
          paths = utils.plugins.module_finder._get_paths()
          paths = [x for x in paths if os.path.isdir(x)]
          module_list = []
          for path in paths:
              for (dirpath, dirnames, filenames) in os.walk(path):
                  for filename in filenames:
                      module_list.append(os.path.join(dirpath, filename))
          return module_list
  
      def test_ast_parse(self):
          module_list = self.list_all_modules()
          ERRORS = []
          # attempt to parse each module with ast
          for m in module_list:
              try:
                  ast.parse(''.join(open(m)))
              except Exception, e:
                  ERRORS.append((m, e))
          assert len(ERRORS) == 0, "get_docstring errors: %s" % ERRORS
  
subject: Add an ast.parse unit test for modules to simulate ansible-doc