EXPECT_EQ(TF_OK, TF_GetCode(s_)) << TF_Message(s_);
  Define(1, {add}, {feed1, feed2}, {add}, {}, true);
  EXPECT_EQ(TF_INVALID_ARGUMENT, TF_GetCode(s_));
  EXPECT_EQ(string("The source of control edge [id=3 scalar:-1 -> add:-1] "
                   "is not in the body. Encountered while creating "
                   "function 'MyFunc'"),
            string(TF_Message(s_)));
}