message: Add a dummy test to avoid failures `ValueError: no such test method in <class '__main__.TfTestCase'>: runTest`
diff: @@ -83,6 +83,9 @@ class TfTestCase(tf.test.TestCase):
  def tear_down(self, test):
  self.tearDown()
  + def test_dummy(self):
  + return True
  +
  class CustomOutputChecker(doctest.OutputChecker):
  