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mindspore/tests/ut/cpp/dataset/common/common.cc

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/**
* Copyright 2019-2021 Huawei Technologies Co., Ltd
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "common.h"
#include <algorithm>
#include <fstream>
#include <string>
#include <vector>
namespace UT {
#ifdef __cplusplus
#if __cplusplus
extern "C" {
#endif
#endif
void DatasetOpTesting::SetUp() {
std::string install_home = "data/dataset";
datasets_root_path_ = install_home;
mindrecord_root_path_ = "data/mindrecord";
}
std::vector<mindspore::dataset::TensorShape> DatasetOpTesting::ToTensorShapeVec(
const std::vector<std::vector<int64_t>> &v) {
std::vector<mindspore::dataset::TensorShape> ret_v;
std::transform(v.begin(), v.end(), std::back_inserter(ret_v),
[](const auto &s) { return mindspore::dataset::TensorShape(s); });
return ret_v;
}
std::vector<mindspore::dataset::DataType> DatasetOpTesting::ToDETypes(const std::vector<mindspore::DataType> &t) {
std::vector<mindspore::dataset::DataType> ret_t;
std::transform(t.begin(), t.end(), std::back_inserter(ret_t), [](const mindspore::DataType &t) {
return mindspore::dataset::MSTypeToDEType(static_cast<mindspore::TypeId>(t));
});
return ret_t;
}
// Function to read a file into an MSTensor
// Note: This provides the analogous support for DETensor's CreateFromFile.
mindspore::MSTensor DatasetOpTesting::ReadFileToTensor(const std::string &file) {
if (file.empty()) {
MS_LOG(ERROR) << "Pointer file is nullptr; return an empty Tensor.";
return mindspore::MSTensor();
}
std::ifstream ifs(file);
if (!ifs.good()) {
MS_LOG(ERROR) << "File: " << file << " does not exist; return an empty Tensor.";
return mindspore::MSTensor();
}
if (!ifs.is_open()) {
MS_LOG(ERROR) << "File: " << file << " open failed; return an empty Tensor.";
return mindspore::MSTensor();
}
ifs.seekg(0, std::ios::end);
size_t size = ifs.tellg();
mindspore::MSTensor buf("file", mindspore::DataType::kNumberTypeUInt8, {static_cast<int64_t>(size)}, nullptr, size);
ifs.seekg(0, std::ios::beg);
ifs.read(reinterpret_cast<char *>(buf.MutableData()), size);
ifs.close();
return buf;
}
#ifdef __cplusplus
#if __cplusplus
}
#endif
#endif
} // namespace UT