new_contents: import unittest
  
  from ..autoserialize import DataValuePickle, DataValueJSON, DataValueYAML
  from .mixintestcase import MixInValueTestCase, MixInWithTempFile
  
  
  class TestDataValuePickle(MixInValueTestCase, MixInWithTempFile,
                            unittest.TestCase):
      dstype = DataValuePickle
  
  
  class TestDataValueJSON(MixInValueTestCase, MixInWithTempFile,
                          unittest.TestCase):
      dstype = DataValueJSON
  
  
  class TestDataValueYAML(MixInValueTestCase, MixInWithTempFile,
                          unittest.TestCase):
      dstype = DataValueYAML
  
subject: Add buildlet.datastore.tests.test_autoserialize