"from function 'MyFunc'"),
            string(TF_Message(s_)));
}

TEST_F(CApiFunctionTest, NodeMissingInput) {
  /*
   *        input---> |  | <----missing input
   *                  v  v
   *        body----> add
   *                   |
   *                   v
   */
  TF_Operation* feed1 = Placeholder(func_graph_, s_, "feed1");

  EXPECT_EQ(-1, TF_OperationOutputListLength(feed, "bogus", s));
  EXPECT_EQ(TF_INVALID_ARGUMENT, TF_GetCode(s));

  ASSERT_FALSE(GetAttrValue(feed, "missing", &attr_value, s));
  EXPECT_EQ(string("Operation 'feed' has no attr named 'missing'."),
            string(TF_Message(s)));

  // Make a constant oper with the scalar "3".
  TF_Operation* three = ScalarConst(3, graph, s);