message: Disable Grappler optimizer for tests
diff: @@ -974,6 +974,8 @@ class TensorFlowTestCase(googletest.TestCase):
  config.graph_options.optimizer_options.opt_level = -1
  config.graph_options.rewrite_options.constant_folding = (
  rewriter_config_pb2.RewriterConfig.OFF)
  + config.graph_options.rewrite_options.arithmetic_optimization = (
  + rewriter_config_pb2.RewriterConfig.OFF)
  return config
  if graph is None:
  