}
      }
      break;

    case tensorflow::AttrValue::kPlaceholder:
      metadata.is_list = 0;
      metadata.list_size = -1;
      metadata.type = TF_ATTR_PLACEHOLDER;
      metadata.total_size = -1;
      break;

    case tensorflow::AttrValue::kFunc:
      metadata.is_list = 0;
      metadata.list_size = -1;
      metadata.type = TF_ATTR_FUNC;
      metadata.total_size = -1;

  TFE_OpAddAttrs(copy_op, attributes);
  unsigned char is_list = 0;
  ASSERT_EQ(TF_ATTR_TYPE,
            TFE_OpGetAttrType(copy_op, "dtype", &is_list, status));
  CHECK_EQ(TF_OK, TF_GetCode(status)) << TF_Message(status);
  ASSERT_EQ(TF_ATTR_SHAPE,
            TFE_OpGetAttrType(copy_op, "shape", &is_list, status));
  CHECK_EQ(TF_OK, TF_GetCode(status)) << TF_Message(status);

pkg os, func Getpagesize() int
pkg os, func Getpid() int
pkg os, func Getppid() int
pkg os, func Getuid() int
pkg os, func Getwd() (string, error)
pkg os, func Hostname() (string, error)
pkg os, func IsExist(error) bool
pkg os, func IsNotExist(error) bool
pkg os, func IsPathSeparator(uint8) bool
pkg os, func IsPermission(error) bool
pkg os, func Lchown(string, int, int) error
pkg os, func Link(string, string) error

      EXPECT_EQ("Operation 'add' has no attr named '_class'.",
                std::string(TF_Message(s_)));
      return;
    }
    EXPECT_EQ(TF_OK, TF_GetCode(s_)) << TF_Message(s_);
    EXPECT_EQ(1, m.is_list);
    EXPECT_EQ(expected.size(), m.list_size);
    EXPECT_EQ(TF_ATTR_STRING, m.type);
    std::vector<void*> values(expected.size());
    std::vector<size_t> lens(expected.size());