ml/test_utils.h

// Copyright 2018 The Chromium OS Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef ML_TEST_UTILS_H_
#define ML_TEST_UTILS_H_

#include <vector>

#include "mojom/tensor.mojom.h"

namespace ml {

// Create a tensor with the given shape and values. Does no validity checking
// (by design, as we sometimes need to pass bad tensors to test error handling).
template <typename T>
chromeos::machine_learning::mojom::TensorPtr NewTensor(
    const std::vector<int64_t>& shape, const std::vector<T>& values) {
  auto tensor(chromeos::machine_learning::mojom::Tensor::New());
  TensorView<T> tensor_view(tensor);
  tensor_view.Allocate();

  mojo::Array<int64_t>& tensor_shape = tensor_view.GetShape();
  for (const int64_t dim : shape) {
    tensor_shape.push_back(dim);
  }

  mojo::Array<T>& tensor_values = tensor_view.GetValues();
  for (const T& value : values) {
    tensor_values.push_back(value);
  }

  return tensor;
}

}  // namespace ml

#endif  // ML_TEST_UTILS_H_