TFE_TensorHandle* hdevice =
      TFE_TensorHandleCopyToDevice(hcpu, ctx, kErrorDevice, status.get());
  EXPECT_NE(TF_OK, TF_GetCode(status.get()));
  const char* msg = "NoSuchDevice:0 unknown device";
  EXPECT_TRUE(strstr(TF_Message(status.get()), msg) != nullptr)
      << TF_Message(status.get());
  TF_SetStatus(status.get(), TF_OK, "");
  const char* kCPUDevice = "CPU:0";
  TFE_TensorHandle* hcopy =

    TF_Library* lib = TF_LoadLibrary(lib_path.c_str(), status);
    TF_Code code = TF_GetCode(status);
    string status_msg(TF_Message(status));
    TF_DeleteStatus(status);
    ASSERT_EQ(TF_OK, code) << status_msg;

    // Test op list.
    TF_Buffer op_list_buf = TF_GetOpList(lib);
    tensorflow::OpList op_list;