!6171 [MD] loading dataset log / dataset validation / dataset description

Merge pull request !6171 from luoyang/c-api-pyfunc

mindspore/ccsrc/minddata/dataset/api/datasets.cc

@@ -16,6 +16,7 @@
 
 #include <fstream>
 #include <unordered_set>
+#include <algorithm>
 #include "minddata/dataset/include/datasets.h"
 #include "minddata/dataset/include/samplers.h"
 #include "minddata/dataset/include/transforms.h"
@@ -729,7 +730,14 @@ bool ValidateDatasetSampler(const std::string &dataset_name, const std::shared_p
 }
 
 bool ValidateStringValue(const std::string &str, const std::unordered_set<std::string> &valid_strings) {
-  return valid_strings.find(str) != valid_strings.end();
+  if (valid_strings.find(str) == valid_strings.end()) {
+    std::string mode;
+    mode = std::accumulate(valid_strings.begin(), valid_strings.end(), mode,
+                           [](std::string a, std::string b) { return std::move(a) + " " + std::move(b); });
+    MS_LOG(ERROR) << str << " does not match any mode in [" + mode + " ]";
+    return false;
+  }
+  return true;
 }
 
 // Helper function to validate dataset input/output column parameter
@@ -841,8 +849,7 @@ Cifar10Dataset::Cifar10Dataset(const std::string &dataset_dir, const std::string
 
 bool Cifar10Dataset::ValidateParams() {
   return ValidateDatasetDirParam("Cifar10Dataset", dataset_dir_) &&
-         ValidateDatasetSampler("Cifar10Dataset", sampler_) &&
-         ValidateStringValue(usage_, {"train", "test", "all", ""});
+         ValidateDatasetSampler("Cifar10Dataset", sampler_) && ValidateStringValue(usage_, {"train", "test", "all"});
 }
 
 // Function to build CifarOp for Cifar10
@@ -870,8 +877,7 @@ Cifar100Dataset::Cifar100Dataset(const std::string &dataset_dir, const std::stri
 
 bool Cifar100Dataset::ValidateParams() {
   return ValidateDatasetDirParam("Cifar100Dataset", dataset_dir_) &&
-         ValidateDatasetSampler("Cifar100Dataset", sampler_) &&
-         ValidateStringValue(usage_, {"train", "test", "all", ""});
+         ValidateDatasetSampler("Cifar100Dataset", sampler_) && ValidateStringValue(usage_, {"train", "test", "all"});
 }
 
 // Function to build CifarOp for Cifar100
@@ -1359,7 +1365,7 @@ MnistDataset::MnistDataset(std::string dataset_dir, std::string usage, std::shar
     : dataset_dir_(dataset_dir), usage_(usage), sampler_(sampler) {}
 
 bool MnistDataset::ValidateParams() {
-  return ValidateStringValue(usage_, {"train", "test", "all", ""}) &&
+  return ValidateStringValue(usage_, {"train", "test", "all"}) &&
          ValidateDatasetDirParam("MnistDataset", dataset_dir_) && ValidateDatasetSampler("MnistDataset", sampler_);
 }
 

mindspore/ccsrc/minddata/dataset/api/samplers.cc

@@ -31,8 +31,10 @@ SamplerObj::SamplerObj() {}
 
 /// Function to create a Distributed Sampler.
 std::shared_ptr<DistributedSamplerObj> DistributedSampler(int64_t num_shards, int64_t shard_id, bool shuffle,
-                                                          int64_t num_samples, uint32_t seed, bool even_dist) {
-  auto sampler = std::make_shared<DistributedSamplerObj>(num_shards, shard_id, shuffle, num_samples, seed, even_dist);
+                                                          int64_t num_samples, uint32_t seed, int64_t offset,
+                                                          bool even_dist) {
+  auto sampler =
+    std::make_shared<DistributedSamplerObj>(num_shards, shard_id, shuffle, num_samples, seed, offset, even_dist);
   // Input validation
   if (!sampler->ValidateParams()) {
     return nullptr;
@@ -95,12 +97,13 @@ std::shared_ptr<WeightedRandomSamplerObj> WeightedRandomSampler(std::vector<doub
 
 // DistributedSampler
 DistributedSamplerObj::DistributedSamplerObj(int64_t num_shards, int64_t shard_id, bool shuffle, int64_t num_samples,
-                                             uint32_t seed, bool even_dist)
+                                             uint32_t seed, int64_t offset, bool even_dist)
     : num_shards_(num_shards),
       shard_id_(shard_id),
       shuffle_(shuffle),
       num_samples_(num_samples),
       seed_(seed),
+      offset_(offset),
       even_dist_(even_dist) {}
 
 bool DistributedSamplerObj::ValidateParams() {
@@ -123,7 +126,7 @@ bool DistributedSamplerObj::ValidateParams() {
 }
 
 std::shared_ptr<Sampler> DistributedSamplerObj::Build() {
-  return std::make_shared<dataset::DistributedSampler>(num_samples_, num_shards_, shard_id_, shuffle_, seed_,
+  return std::make_shared<dataset::DistributedSampler>(num_samples_, num_shards_, shard_id_, shuffle_, seed_, offset_,
                                                        even_dist_);
 }
 

mindspore/ccsrc/minddata/dataset/api/text.cc

@@ -42,15 +42,10 @@ bool LookupOperation::ValidateParams() {
     MS_LOG(ERROR) << "Lookup: vocab object type is incorrect or null.";
     return false;
   }
-  if (unknown_token_.empty()) {
-    MS_LOG(ERROR) << "Lookup: no unknown token is specified.";
+  default_id_ = vocab_->Lookup(unknown_token_);
+  if (default_id_ == Vocab::kNoTokenExists) {
+    MS_LOG(ERROR) << "Lookup: " << unknown_token_ << " doesn't exist in vocab.";
     return false;
-  } else {
-    default_id_ = vocab_->Lookup(unknown_token_);
-    if (default_id_ == Vocab::kNoTokenExists) {
-      MS_LOG(ERROR) << "Lookup: unknown_token: [" + unknown_token_ + "], does not exist in vocab.";
-      return false;
-    }
   }
   return true;
 }

mindspore/ccsrc/minddata/dataset/core/tensor.cc

@@ -263,6 +263,7 @@ Status Tensor::CreateFromFile(const std::string &path, std::shared_ptr<Tensor> *
   fs.open(path, std::ios::binary | std::ios::in);
   CHECK_FAIL_RETURN_UNEXPECTED(!fs.fail(), "Fail to open file: " + path);
   int64_t num_bytes = fs.seekg(0, std::ios::end).tellg();
+  CHECK_FAIL_RETURN_UNEXPECTED(num_bytes <= kDeMaxDim, "Invalid file to allocate tensor memory, check path: " + path);
   CHECK_FAIL_RETURN_UNEXPECTED(fs.seekg(0, std::ios::beg).good(), "Fail to find size of file");
   RETURN_IF_NOT_OK(Tensor::CreateEmpty(TensorShape{num_bytes}, DataType(DataType::DE_UINT8), out));
   int64_t written_bytes = fs.read(reinterpret_cast<char *>((*out)->GetMutableBuffer()), num_bytes).gcount();

mindspore/ccsrc/minddata/dataset/core/tensor_shape.cc

@@ -158,7 +158,7 @@ void TensorShape::AddListToShape(const T &list) {
     }
     if (dim > kDeMaxDim) {
       std::stringstream ss;
-      ss << "Invalid shape data, dim (" << size << ") is larger than the maximum dim size(" << kDeMaxDim << ")!";
+      ss << "Invalid shape data, dim (" << dim << ") is larger than the maximum dim size(" << kDeMaxDim << ")!";
       MS_LOG(ERROR) << ss.str().c_str();
       known_ = false;
       raw_shape_.clear();

mindspore/ccsrc/minddata/dataset/engine/datasetops/source/album_op.cc

@@ -119,6 +119,10 @@ Status AlbumOp::PrescanEntry() {
 
   std::sort(image_rows_.begin(), image_rows_.end(), StrComp);
   num_rows_ = image_rows_.size();
+  if (num_rows_ == 0) {
+    RETURN_STATUS_UNEXPECTED(
+      "Invalid data, no valid data matching the dataset API AlbumDataset. Please check file path or dataset API.");
+  }
   return Status::OK();
 }
 

mindspore/ccsrc/minddata/dataset/engine/datasetops/source/celeba_op.cc

@@ -237,8 +237,7 @@ Status CelebAOp::ParseImageAttrInfo() {
   num_rows_ = image_labels_vec_.size();
   if (num_rows_ == 0) {
     RETURN_STATUS_UNEXPECTED(
-      "Invalid data, no valid data matching the dataset API CelebADataset. "
-      "Please check file path or dataset API validation first");
+      "Invalid data, no valid data matching the dataset API CelebADataset. Please check file path or dataset API.");
   }
   MS_LOG(DEBUG) << "Celeba dataset rows number is " << num_rows_ << ".";
   return Status::OK();

mindspore/ccsrc/minddata/dataset/engine/datasetops/source/cifar_op.cc

@@ -412,7 +412,7 @@ Status CifarOp::ParseCifarData() {
   if (num_rows_ == 0) {
     std::string api = cifar_type_ == kCifar10 ? "Cifar10Dataset" : "Cifar100Dataset";
     RETURN_STATUS_UNEXPECTED("Invalid data, no valid data matching the dataset API " + api +
-                             ". Please check file path or dataset API validation first.");
+                             ". Please check file path or dataset API.");
   }
   cifar_raw_data_block_->Reset();
   return Status::OK();

mindspore/ccsrc/minddata/dataset/engine/datasetops/source/clue_op.cc

@@ -192,7 +192,7 @@ Status ClueOp::LoadFile(const std::string &file, const int64_t start_offset, con
       js = nlohmann::json::parse(line);
     } catch (const std::exception &err) {
       // Catch any exception and convert to Status return code
-      RETURN_STATUS_UNEXPECTED("Invalid file, failed to parse json file: " + line);
+      RETURN_STATUS_UNEXPECTED("Invalid file, failed to parse json file: " + file);
     }
     int cols_count = cols_to_keyword_.size();
     TensorRow tRow(cols_count, nullptr);
@@ -482,8 +482,7 @@ Status ClueOp::CalculateNumRowsPerShard() {
   }
   if (all_num_rows_ == 0) {
     RETURN_STATUS_UNEXPECTED(
-      "Invalid data, no valid data matching the dataset API CLUEDataset. Please check file path or dataset API "
-      "validation first.");
+      "Invalid data, no valid data matching the dataset API CLUEDataset. Please check file path or dataset API.");
   }
 
   num_rows_per_shard_ = static_cast<int64_t>(std::ceil(all_num_rows_ * 1.0 / num_devices_));

mindspore/ccsrc/minddata/dataset/engine/datasetops/source/coco_op.cc

@@ -468,6 +468,10 @@ Status CocoOp::ParseAnnotationIds() {
     if (coordinate_map_.find(img) != coordinate_map_.end()) image_ids_.push_back(img);
   }
   num_rows_ = image_ids_.size();
+  if (num_rows_ == 0) {
+    RETURN_STATUS_UNEXPECTED(
+      "Invalid data, no valid data matching the dataset API CocoDataset. Please check file path or dataset API.");
+  }
   return Status::OK();
 }
 

mindspore/ccsrc/minddata/dataset/engine/datasetops/source/csv_op.cc

@@ -783,8 +783,7 @@ Status CsvOp::CalculateNumRowsPerShard() {
   }
   if (all_num_rows_ == 0) {
     RETURN_STATUS_UNEXPECTED(
-      "Invalid data, no valid data matching the dataset API CsvDataset. Please check file path or CSV format "
-      "validation first.");
+      "Invalid data, no valid data matching the dataset API CsvDataset. Please check file path or CSV format.");
   }
 
   num_rows_per_shard_ = static_cast<int64_t>(std::ceil(all_num_rows_ * 1.0 / num_devices_));

mindspore/ccsrc/minddata/dataset/engine/datasetops/source/image_folder_op.cc

@@ -117,8 +117,8 @@ Status ImageFolderOp::PrescanMasterEntry(const std::string &filedir) {
   num_rows_ = image_label_pairs_.size();
   if (num_rows_ == 0) {
     RETURN_STATUS_UNEXPECTED(
-      "Invalid data, no valid data matching the dataset API ImageFolderDataset. Please check file path or dataset "
-      "API validation first.");
+      "Invalid data, no valid data matching the dataset API ImageFolderDataset. "
+      "Please check file path or dataset API.");
   }
   // free memory of two queues used for pre-scan
   folder_name_queue_->Reset();

mindspore/ccsrc/minddata/dataset/engine/datasetops/source/manifest_op.cc

@@ -386,8 +386,7 @@ Status ManifestOp::CountDatasetInfo() {
   num_rows_ = static_cast<int64_t>(image_labelname_.size());
   if (num_rows_ == 0) {
     RETURN_STATUS_UNEXPECTED(
-      "Invalid data, no valid data matching the dataset API ManifestDataset.Please check file path or dataset API "
-      "validation first.");
+      "Invalid data, no valid data matching the dataset API ManifestDataset. Please check file path or dataset API.");
   }
   return Status::OK();
 }

mindspore/ccsrc/minddata/dataset/engine/datasetops/source/mnist_op.cc

@@ -369,8 +369,7 @@ Status MnistOp::ParseMnistData() {
   num_rows_ = image_label_pairs_.size();
   if (num_rows_ == 0) {
     RETURN_STATUS_UNEXPECTED(
-      "Invalid data, no valid data matching the dataset API MnistDataset.Please check file path or dataset API "
-      "validation first.");
+      "Invalid data, no valid data matching the dataset API MnistDataset. Please check file path or dataset API.");
   }
   return Status::OK();
 }

mindspore/ccsrc/minddata/dataset/engine/datasetops/source/text_file_op.cc

@@ -473,8 +473,7 @@ Status TextFileOp::CalculateNumRowsPerShard() {
   }
   if (all_num_rows_ == 0) {
     RETURN_STATUS_UNEXPECTED(
-      "Invalid data, no valid data matching the dataset API TextFileDataset.Please check file path or dataset API "
-      "validation first.");
+      "Invalid data, no valid data matching the dataset API TextFileDataset. Please check file path or dataset API.");
   }
 
   num_rows_per_shard_ = static_cast<int64_t>(std::ceil(all_num_rows_ * 1.0 / num_devices_));

mindspore/ccsrc/minddata/dataset/engine/datasetops/source/tf_reader_op.cc

@@ -229,8 +229,7 @@ Status TFReaderOp::CalculateNumRowsPerShard() {
   num_rows_per_shard_ = static_cast<int64_t>(std::ceil(num_rows_ * 1.0 / num_devices_));
   if (num_rows_per_shard_ == 0) {
     RETURN_STATUS_UNEXPECTED(
-      "Invalid data, no valid data matching the dataset API TFRecordDataset.Please check file path or dataset API "
-      "validation first.");
+      "Invalid data, no valid data matching the dataset API TFRecordDataset. Please check file path or dataset API.");
   }
   return Status::OK();
 }

mindspore/ccsrc/minddata/dataset/engine/datasetops/source/voc_op.cc

@@ -315,6 +315,10 @@ Status VOCOp::ParseAnnotationIds() {
   }
 
   num_rows_ = image_ids_.size();
+  if (num_rows_ == 0) {
+    RETURN_STATUS_UNEXPECTED(
+      "Invalid data, no valid data matching the dataset API VOCDataset. Please check file path or dataset API.");
+  }
   return Status::OK();
 }
 

mindspore/ccsrc/minddata/dataset/include/datasets.h

@@ -113,7 +113,7 @@ std::shared_ptr<AlbumDataset> Album(const std::string &dataset_dir, const std::s
 /// \notes The generated dataset has two columns ['image', 'attr'].
 ///      The type of the image tensor is uint8. The attr tensor is uint32 and one hot type.
 /// \param[in] dataset_dir Path to the root directory that contains the dataset.
-/// \param[in] usage One of "all", "train", "valid" or "test".
+/// \param[in] usage One of "all", "train", "valid" or "test" (default = "all").
 /// \param[in] sampler Object used to choose samples from the dataset. If sampler is not given,
 ///     a `RandomSampler` will be used to randomly iterate the entire dataset (default = RandomSampler())
 /// \param[in] decode Decode the images after reading (default=false).
@@ -126,21 +126,21 @@ std::shared_ptr<CelebADataset> CelebA(const std::string &dataset_dir, const std:
 /// \brief Function to create a Cifar10 Dataset
 /// \notes The generated dataset has two columns ["image", "label"]
 /// \param[in] dataset_dir Path to the root directory that contains the dataset
-/// \param[in] usage of CIFAR10, can be "train", "test" or "all"
+/// \param[in] usage of CIFAR10, can be "train", "test" or "all" (default = "all").
 /// \param[in] sampler Object used to choose samples from the dataset. If sampler is not given,
 ///     a `RandomSampler` will be used to randomly iterate the entire dataset (default = RandomSampler())
 /// \return Shared pointer to the current Dataset
-std::shared_ptr<Cifar10Dataset> Cifar10(const std::string &dataset_dir, const std::string &usage = std::string(),
+std::shared_ptr<Cifar10Dataset> Cifar10(const std::string &dataset_dir, const std::string &usage = "all",
                                         const std::shared_ptr<SamplerObj> &sampler = RandomSampler());
 
 /// \brief Function to create a Cifar100 Dataset
 /// \notes The generated dataset has three columns ["image", "coarse_label", "fine_label"]
 /// \param[in] dataset_dir Path to the root directory that contains the dataset
-/// \param[in] usage of CIFAR100, can be "train", "test" or "all"
+/// \param[in] usage of CIFAR100, can be "train", "test" or "all" (default = "all").
 /// \param[in] sampler Object used to choose samples from the dataset. If sampler is not given,
 ///     a `RandomSampler` will be used to randomly iterate the entire dataset (default = RandomSampler())
 /// \return Shared pointer to the current Dataset
-std::shared_ptr<Cifar100Dataset> Cifar100(const std::string &dataset_dir, const std::string &usage = std::string(),
+std::shared_ptr<Cifar100Dataset> Cifar100(const std::string &dataset_dir, const std::string &usage = "all",
                                           const std::shared_ptr<SamplerObj> &sampler = RandomSampler());
 
 /// \brief Function to create a CLUEDataset
@@ -247,11 +247,11 @@ std::shared_ptr<ManifestDataset> Manifest(const std::string &dataset_file, const
 /// \brief Function to create a MnistDataset
 /// \notes The generated dataset has two columns ["image", "label"]
 /// \param[in] dataset_dir Path to the root directory that contains the dataset
-/// \param[in] usage of MNIST, can be "train", "test" or "all"
+/// \param[in] usage of MNIST, can be "train", "test" or "all" (default = "all").
 /// \param[in] sampler Object used to choose samples from the dataset. If sampler is not given,
 ///     a `RandomSampler` will be used to randomly iterate the entire dataset (default = RandomSampler())
 /// \return Shared pointer to the current MnistDataset
-std::shared_ptr<MnistDataset> Mnist(const std::string &dataset_dir, const std::string &usage = std::string(),
+std::shared_ptr<MnistDataset> Mnist(const std::string &dataset_dir, const std::string &usage = "all",
                                     const std::shared_ptr<SamplerObj> &sampler = RandomSampler());
 
 /// \brief Function to create a ConcatDataset
@@ -407,7 +407,7 @@ std::shared_ptr<TFRecordDataset> TFRecord(const std::vector<std::string> &datase
 ///     - task='Segmentation', column: [['image', dtype=uint8], ['target',dtype=uint8]].
 /// \param[in] dataset_dir Path to the root directory that contains the dataset
 /// \param[in] task Set the task type of reading voc data, now only support "Segmentation" or "Detection"
-/// \param[in] usage The type of data list text file to be read
+/// \param[in] usage The type of data list text file to be read (default = "train").
 /// \param[in] class_indexing A str-to-int mapping from label name to index, only valid in "Detection" task
 /// \param[in] decode Decode the images after reading
 /// \param[in] sampler Object used to choose samples from the dataset. If sampler is not given,

mindspore/ccsrc/minddata/dataset/include/samplers.h

@@ -52,12 +52,13 @@ class WeightedRandomSamplerObj;
 /// \param[in] shuffle - If true, the indices are shuffled.
 /// \param[in] num_samples - The number of samples to draw (default to all elements).
 /// \param[in] seed - The seed in use when shuffle is true.
+/// \param[in] offset - The starting position where access to elements in the dataset begins.
 /// \param[in] even_dist - If true, each shard would return the same number of rows (default to true).
 ///     If false the total rows returned by all the shards would not have overlap.
 /// \return Shared pointer to the current Sampler.
 std::shared_ptr<DistributedSamplerObj> DistributedSampler(int64_t num_shards, int64_t shard_id, bool shuffle = true,
                                                           int64_t num_samples = 0, uint32_t seed = 1,
-                                                          bool even_dist = true);
+                                                          int64_t offset = -1, bool even_dist = true);
 
 /// Function to create a PK Sampler.
 /// \notes Samples K elements for each P class in the dataset.
@@ -103,7 +104,7 @@ std::shared_ptr<WeightedRandomSamplerObj> WeightedRandomSampler(std::vector<doub
 class DistributedSamplerObj : public SamplerObj {
  public:
   DistributedSamplerObj(int64_t num_shards, int64_t shard_id, bool shuffle, int64_t num_samples, uint32_t seed,
-                        bool even_dist);
+                        int64_t offset, bool even_dist);
 
   ~DistributedSamplerObj() = default;
 
@@ -117,6 +118,7 @@ class DistributedSamplerObj : public SamplerObj {
   bool shuffle_;
   int64_t num_samples_;
   uint32_t seed_;
+  int64_t offset_;
   bool even_dist_;
 };
 

mindspore/ccsrc/minddata/dataset/text/vocab.cc

@@ -87,54 +87,25 @@ Status Vocab::BuildFromUnorderedMap(const std::unordered_map<WordType, WordIdTyp
 
 Status Vocab::BuildFromVector(const std::vector<WordType> &words, const std::vector<WordType> &special_tokens,
                               bool prepend_special, std::shared_ptr<Vocab> *vocab) {
-  // Validate parameters
-  std::string duplicate_word;
-  for (const WordType &word : words) {
-    if (std::count(words.begin(), words.end(), word) > 1) {
-      if (duplicate_word.find(word) == std::string::npos) {
-        duplicate_word = duplicate_word.empty() ? duplicate_word + word : duplicate_word + ", " + word;
-      }
-    }
-  }
-  if (!duplicate_word.empty()) {
-    MS_LOG(ERROR) << "words contains duplicate word: " << duplicate_word;
-    RETURN_STATUS_UNEXPECTED("words contains duplicate word: " + duplicate_word);
-  }
-
-  std::string duplicate_sp;
-  std::string existed_sp;
-  for (const WordType &sp : special_tokens) {
-    if (std::count(special_tokens.begin(), special_tokens.end(), sp) > 1) {
-      if (duplicate_sp.find(sp) == std::string::npos) {
-        duplicate_sp = duplicate_sp.empty() ? duplicate_sp + sp : duplicate_sp + ", " + sp;
-      }
-    }
-    if (std::count(words.begin(), words.end(), sp) >= 1) {
-      if (existed_sp.find(sp) == std::string::npos) {
-        existed_sp = existed_sp.empty() ? existed_sp + sp : existed_sp + ", " + sp;
-      }
-    }
-  }
-  if (!duplicate_sp.empty()) {
-    MS_LOG(ERROR) << "special_tokens contains duplicate word: " << duplicate_sp;
-    RETURN_STATUS_UNEXPECTED("special_tokens contains duplicate word: " + duplicate_sp);
-  }
-  if (!existed_sp.empty()) {
-    MS_LOG(ERROR) << "special_tokens and word_list contain duplicate word: " << existed_sp;
-    RETURN_STATUS_UNEXPECTED("special_tokens and word_list contain duplicate word: " + existed_sp);
-  }
-
   std::unordered_map<WordType, WordIdType> word2id;
 
   // if special is added in front, normal words id will start from number of special tokens
   WordIdType word_id = prepend_special ? static_cast<WordIdType>(special_tokens.size()) : 0;
   for (auto word : words) {
+    if (word2id.find(word) != word2id.end()) {
+      MS_LOG(ERROR) << "word_list contains duplicate word: " + word + ".";
+      RETURN_STATUS_UNEXPECTED("word_list contains duplicate word: " + word + ".");
+    }
     word2id[word] = word_id++;
   }
 
   word_id = prepend_special ? 0 : word2id.size();
 
   for (auto special_token : special_tokens) {
+    if (word2id.find(special_token) != word2id.end()) {
+      MS_LOG(ERROR) << "special_tokens and word_list contain duplicate word: " + special_token + ".";
+      RETURN_STATUS_UNEXPECTED("special_tokens and word_list contain duplicate word: " + special_token + ".");
+    }
     word2id[special_token] = word_id++;
   }
 

tests/ut/cpp/dataset/build_vocab_test.cc

@@ -183,8 +183,8 @@ TEST_F(MindDataTestVocab, TestVocabFromVectorFail2) {
 TEST_F(MindDataTestVocab, TestVocabFromVectorFail3) {
   MS_LOG(INFO) << "Doing MindDataTestVocab-TestVocabFromVectorFail3.";
   // Build vocab from a vector
-  std::vector<std::string> list = {"apple", "dog", "egg", "<unk>", "<pad>"};
-  std::vector<std::string> sp_tokens = {"<pad>", "<unk>"};
+  std::vector<std::string> list = {"apple", "dog", "egg", "<unk>", ""};
+  std::vector<std::string> sp_tokens = {"", "<unk>"};
   std::shared_ptr<Vocab> vocab = std::make_shared<Vocab>();
 
   // Expected failure: special tokens are already existed in word_list

tests/ut/cpp/dataset/c_api_dataset_cifar_test.cc

@@ -28,7 +28,7 @@ TEST_F(MindDataTestPipeline, TestCifar10Dataset) {
 
   // Create a Cifar10 Dataset
   std::string folder_path = datasets_root_path_ + "/testCifar10Data/";
-  std::shared_ptr<Dataset> ds = Cifar10(folder_path, std::string(), RandomSampler(false, 10));
+  std::shared_ptr<Dataset> ds = Cifar10(folder_path, "all", RandomSampler(false, 10));
   EXPECT_NE(ds, nullptr);
 
   // Create an iterator over the result of the above dataset
@@ -62,7 +62,7 @@ TEST_F(MindDataTestPipeline, TestCifar100Dataset) {
 
   // Create a Cifar100 Dataset
   std::string folder_path = datasets_root_path_ + "/testCifar100Data/";
-  std::shared_ptr<Dataset> ds = Cifar100(folder_path, std::string(), RandomSampler(false, 10));
+  std::shared_ptr<Dataset> ds = Cifar100(folder_path, "all", RandomSampler(false, 10));
   EXPECT_NE(ds, nullptr);
 
   // Create an iterator over the result of the above dataset
@@ -96,7 +96,7 @@ TEST_F(MindDataTestPipeline, TestCifar100DatasetFail1) {
   MS_LOG(INFO) << "Doing MindDataTestPipeline-TestCifar100DatasetFail1.";
 
   // Create a Cifar100 Dataset
-  std::shared_ptr<Dataset> ds = Cifar100("", std::string(), RandomSampler(false, 10));
+  std::shared_ptr<Dataset> ds = Cifar100("", "all", RandomSampler(false, 10));
   EXPECT_EQ(ds, nullptr);
 }
 
@@ -104,7 +104,17 @@ TEST_F(MindDataTestPipeline, TestCifar10DatasetFail1) {
   MS_LOG(INFO) << "Doing MindDataTestPipeline-TestCifar10DatasetFail1.";
 
   // Create a Cifar10 Dataset
-  std::shared_ptr<Dataset> ds = Cifar10("", std::string(), RandomSampler(false, 10));
+  std::shared_ptr<Dataset> ds = Cifar10("", "all", RandomSampler(false, 10));
+  EXPECT_EQ(ds, nullptr);
+}
+
+TEST_F(MindDataTestPipeline, TestCifar10DatasetWithInvalidUsage) {
+  MS_LOG(INFO) << "Doing MindDataTestPipeline-TestCifar10DatasetWithNullSampler.";
+
+  // Create a Cifar10 Dataset
+  std::string folder_path = datasets_root_path_ + "/testCifar10Data/";
+  std::shared_ptr<Dataset> ds = Cifar10(folder_path, "validation");
+  // Expect failure: validation is not a valid usage
   EXPECT_EQ(ds, nullptr);
 }
 
@@ -113,7 +123,7 @@ TEST_F(MindDataTestPipeline, TestCifar10DatasetWithNullSampler) {
 
   // Create a Cifar10 Dataset
   std::string folder_path = datasets_root_path_ + "/testCifar10Data/";
-  std::shared_ptr<Dataset> ds = Cifar10(folder_path, std::string(), nullptr);
+  std::shared_ptr<Dataset> ds = Cifar10(folder_path, "all", nullptr);
   // Expect failure: sampler can not be nullptr
   EXPECT_EQ(ds, nullptr);
 }
@@ -123,7 +133,7 @@ TEST_F(MindDataTestPipeline, TestCifar100DatasetWithNullSampler) {
 
   // Create a Cifar10 Dataset
   std::string folder_path = datasets_root_path_ + "/testCifar100Data/";
-  std::shared_ptr<Dataset> ds = Cifar100(folder_path, std::string(), nullptr);
+  std::shared_ptr<Dataset> ds = Cifar100(folder_path, "all", nullptr);
   // Expect failure: sampler can not be nullptr
   EXPECT_EQ(ds, nullptr);
 }
@@ -133,7 +143,7 @@ TEST_F(MindDataTestPipeline, TestCifar100DatasetWithWrongSampler) {
 
   // Create a Cifar10 Dataset
   std::string folder_path = datasets_root_path_ + "/testCifar100Data/";
-  std::shared_ptr<Dataset> ds = Cifar100(folder_path, std::string(), RandomSampler(false, -10));
+  std::shared_ptr<Dataset> ds = Cifar100(folder_path, "all", RandomSampler(false, -10));
   // Expect failure: sampler is not construnced correctly
   EXPECT_EQ(ds, nullptr);
 }

tests/ut/cpp/dataset/c_api_dataset_iterator_test.cc

@@ -28,7 +28,7 @@ TEST_F(MindDataTestPipeline, TestIteratorEmptyColumn) {
   MS_LOG(INFO) << "Doing MindDataTestPipeline-TestIteratorEmptyColumn.";
   // Create a Cifar10 Dataset
   std::string folder_path = datasets_root_path_ + "/testCifar10Data/";
-  std::shared_ptr<Dataset> ds = Cifar10(folder_path, std::string(), RandomSampler(false, 5));
+  std::shared_ptr<Dataset> ds = Cifar10(folder_path, "all", RandomSampler(false, 5));
   EXPECT_NE(ds, nullptr);
 
   // Create a Rename operation on ds
@@ -64,7 +64,7 @@ TEST_F(MindDataTestPipeline, TestIteratorOneColumn) {
   MS_LOG(INFO) << "Doing MindDataTestPipeline-TestIteratorOneColumn.";
   // Create a Mnist Dataset
   std::string folder_path = datasets_root_path_ + "/testMnistData/";
-  std::shared_ptr<Dataset> ds = Mnist(folder_path, std::string(), RandomSampler(false, 4));
+  std::shared_ptr<Dataset> ds = Mnist(folder_path, "all", RandomSampler(false, 4));
   EXPECT_NE(ds, nullptr);
 
   // Create a Batch operation on ds
@@ -103,7 +103,7 @@ TEST_F(MindDataTestPipeline, TestIteratorReOrder) {
   MS_LOG(INFO) << "Doing MindDataTestPipeline-TestIteratorReOrder.";
   // Create a Cifar10 Dataset
   std::string folder_path = datasets_root_path_ + "/testCifar10Data/";
-  std::shared_ptr<Dataset> ds = Cifar10(folder_path, std::string(), SequentialSampler(false, 4));
+  std::shared_ptr<Dataset> ds = Cifar10(folder_path, "all", SequentialSampler(false, 4));
   EXPECT_NE(ds, nullptr);
 
   // Create a Take operation on ds
@@ -186,7 +186,7 @@ TEST_F(MindDataTestPipeline, TestIteratorWrongColumn) {
   MS_LOG(INFO) << "Doing MindDataTestPipeline-TestIteratorOneColumn.";
   // Create a Mnist Dataset
   std::string folder_path = datasets_root_path_ + "/testMnistData/";
-  std::shared_ptr<Dataset> ds = Mnist(folder_path, std::string(), RandomSampler(false, 4));
+  std::shared_ptr<Dataset> ds = Mnist(folder_path, "all", RandomSampler(false, 4));
   EXPECT_NE(ds, nullptr);
 
   // Pass wrong column name

tests/ut/cpp/dataset/c_api_dataset_ops_test.cc

@@ -40,7 +40,7 @@ TEST_F(MindDataTestPipeline, TestBatchAndRepeat) {
 
   // Create a Mnist Dataset
   std::string folder_path = datasets_root_path_ + "/testMnistData/";
-  std::shared_ptr<Dataset> ds = Mnist(folder_path, std::string(), RandomSampler(false, 10));
+  std::shared_ptr<Dataset> ds = Mnist(folder_path, "all", RandomSampler(false, 10));
   EXPECT_NE(ds, nullptr);
 
   // Create a Repeat operation on ds
@@ -82,7 +82,7 @@ TEST_F(MindDataTestPipeline, TestBucketBatchByLengthSuccess1) {
 
   // Create a Mnist Dataset
   std::string folder_path = datasets_root_path_ + "/testMnistData/";
-  std::shared_ptr<Dataset> ds = Mnist(folder_path, std::string(), RandomSampler(false, 10));
+  std::shared_ptr<Dataset> ds = Mnist(folder_path, "all", RandomSampler(false, 10));
   EXPECT_NE(ds, nullptr);
 
   // Create a BucketBatchByLength operation on ds
@@ -118,7 +118,7 @@ TEST_F(MindDataTestPipeline, TestBucketBatchByLengthSuccess2) {
 
   // Create a Mnist Dataset
   std::string folder_path = datasets_root_path_ + "/testMnistData/";
-  std::shared_ptr<Dataset> ds = Mnist(folder_path, std::string(), RandomSampler(false, 10));
+  std::shared_ptr<Dataset> ds = Mnist(folder_path, "all", RandomSampler(false, 10));
   EXPECT_NE(ds, nullptr);
 
   // Create a BucketBatchByLength operation on ds
@@ -156,7 +156,7 @@ TEST_F(MindDataTestPipeline, TestBucketBatchByLengthFail1) {
 
   // Create a Mnist Dataset
   std::string folder_path = datasets_root_path_ + "/testMnistData/";
-  std::shared_ptr<Dataset> ds = Mnist(folder_path, std::string(), RandomSampler(false, 10));
+  std::shared_ptr<Dataset> ds = Mnist(folder_path, "all", RandomSampler(false, 10));
   EXPECT_NE(ds, nullptr);
 
   // Create a BucketBatchByLength operation on ds
@@ -171,7 +171,7 @@ TEST_F(MindDataTestPipeline, TestBucketBatchByLengthFail2) {
 
   // Create a Mnist Dataset
   std::string folder_path = datasets_root_path_ + "/testMnistData/";
-  std::shared_ptr<Dataset> ds = Mnist(folder_path, std::string(), RandomSampler(false, 10));
+  std::shared_ptr<Dataset> ds = Mnist(folder_path, "all", RandomSampler(false, 10));
   EXPECT_NE(ds, nullptr);
 
   // Create a BucketBatchByLength operation on ds
@@ -186,7 +186,7 @@ TEST_F(MindDataTestPipeline, TestBucketBatchByLengthFail3) {
 
   // Create a Mnist Dataset
   std::string folder_path = datasets_root_path_ + "/testMnistData/";
-  std::shared_ptr<Dataset> ds = Mnist(folder_path, std::string(), RandomSampler(false, 10));
+  std::shared_ptr<Dataset> ds = Mnist(folder_path, "all", RandomSampler(false, 10));
   EXPECT_NE(ds, nullptr);
 
   // Create a BucketBatchByLength operation on ds
@@ -201,7 +201,7 @@ TEST_F(MindDataTestPipeline, TestBucketBatchByLengthFail4) {
 
   // Create a Mnist Dataset
   std::string folder_path = datasets_root_path_ + "/testMnistData/";
-  std::shared_ptr<Dataset> ds = Mnist(folder_path, std::string(), RandomSampler(false, 10));
+  std::shared_ptr<Dataset> ds = Mnist(folder_path, "all", RandomSampler(false, 10));
   EXPECT_NE(ds, nullptr);
 
   // Create a BucketBatchByLength operation on ds
@@ -216,7 +216,7 @@ TEST_F(MindDataTestPipeline, TestBucketBatchByLengthFail5) {
 
   // Create a Mnist Dataset
   std::string folder_path = datasets_root_path_ + "/testMnistData/";
-  std::shared_ptr<Dataset> ds = Mnist(folder_path, std::string(), RandomSampler(false, 10));
+  std::shared_ptr<Dataset> ds = Mnist(folder_path, "all", RandomSampler(false, 10));
   EXPECT_NE(ds, nullptr);
 
   // Create a BucketBatchByLength operation on ds
@@ -231,7 +231,7 @@ TEST_F(MindDataTestPipeline, TestBucketBatchByLengthFail6) {
 
   // Create a Mnist Dataset
   std::string folder_path = datasets_root_path_ + "/testMnistData/";
-  std::shared_ptr<Dataset> ds = Mnist(folder_path, std::string(), RandomSampler(false, 10));
+  std::shared_ptr<Dataset> ds = Mnist(folder_path, "all", RandomSampler(false, 10));
   EXPECT_NE(ds, nullptr);
   // Create a BucketBatchByLength operation on ds
   ds = ds->BucketBatchByLength({"image"}, {1, 2}, {1, -2, 3});
@@ -245,7 +245,7 @@ TEST_F(MindDataTestPipeline, TestBucketBatchByLengthFail7) {
 
   // Create a Mnist Dataset
   std::string folder_path = datasets_root_path_ + "/testMnistData/";
-  std::shared_ptr<Dataset> ds = Mnist(folder_path, std::string(), RandomSampler(false, 10));
+  std::shared_ptr<Dataset> ds = Mnist(folder_path, "all", RandomSampler(false, 10));
   EXPECT_NE(ds, nullptr);
 
   // Create a BucketBatchByLength operation on ds
@@ -312,7 +312,7 @@ TEST_F(MindDataTestPipeline, TestConcatSuccess) {
   // Create a Cifar10 Dataset
   // Column names: {"image", "label"}
   folder_path = datasets_root_path_ + "/testCifar10Data/";
-  std::shared_ptr<Dataset> ds2 = Cifar10(folder_path, std::string(), RandomSampler(false, 9));
+  std::shared_ptr<Dataset> ds2 = Cifar10(folder_path, "all", RandomSampler(false, 9));
   EXPECT_NE(ds2, nullptr);
 
   // Create a Project operation on ds
@@ -364,7 +364,7 @@ TEST_F(MindDataTestPipeline, TestConcatSuccess2) {
   // Create a Cifar10 Dataset
   // Column names: {"image", "label"}
   folder_path = datasets_root_path_ + "/testCifar10Data/";
-  std::shared_ptr<Dataset> ds2 = Cifar10(folder_path, std::string(), RandomSampler(false, 9));
+  std::shared_ptr<Dataset> ds2 = Cifar10(folder_path, "all", RandomSampler(false, 9));
   EXPECT_NE(ds2, nullptr);
 
   // Create a Project operation on ds
@@ -1012,7 +1012,7 @@ TEST_F(MindDataTestPipeline, TestTensorOpsAndMap) {
 
   // Create a Mnist Dataset
   std::string folder_path = datasets_root_path_ + "/testMnistData/";
-  std::shared_ptr<Dataset> ds = Mnist(folder_path, std::string(), RandomSampler(false, 20));
+  std::shared_ptr<Dataset> ds = Mnist(folder_path, "all", RandomSampler(false, 20));
   EXPECT_NE(ds, nullptr);
 
   // Create a Repeat operation on ds
@@ -1126,7 +1126,7 @@ TEST_F(MindDataTestPipeline, TestZipSuccess) {
   EXPECT_NE(ds1, nullptr);
 
   folder_path = datasets_root_path_ + "/testCifar10Data/";
-  std::shared_ptr<Dataset> ds2 = Cifar10(folder_path, std::string(), RandomSampler(false, 10));
+  std::shared_ptr<Dataset> ds2 = Cifar10(folder_path, "all", RandomSampler(false, 10));
   EXPECT_NE(ds2, nullptr);
 
   // Create a Project operation on ds

tests/ut/cpp/dataset/c_api_dataset_vocab.cc

@@ -80,6 +80,50 @@ TEST_F(MindDataTestPipeline, TestVocabLookupOp) {
   }
 }
 
+TEST_F(MindDataTestPipeline, TestVocabLookupOpEmptyString) {
+  MS_LOG(INFO) << "Doing MindDataTestPipeline-TestVocabLookupOpEmptyString.";
+
+  // Create a TextFile dataset
+  std::string data_file = datasets_root_path_ + "/testVocab/words.txt";
+  std::shared_ptr<Dataset> ds = TextFile({data_file}, 0, ShuffleMode::kFalse);
+  EXPECT_NE(ds, nullptr);
+
+  // Create a vocab from vector
+  std::vector<std::string> list = {"home", "IS", "behind", "the", "world", "ahead", "!"};
+  std::shared_ptr<Vocab> vocab = std::make_shared<Vocab>();
+  Status s = Vocab::BuildFromVector(list, {"<pad>", ""}, true, &vocab);
+  EXPECT_EQ(s, Status::OK());
+
+  // Create Lookup operation on ds
+  std::shared_ptr<TensorOperation> lookup = text::Lookup(vocab, "", DataType("int32"));
+  EXPECT_NE(lookup, nullptr);
+
+  // Create Map operation on ds
+  ds = ds->Map({lookup}, {"text"});
+  EXPECT_NE(ds, nullptr);
+
+  // Create an iterator over the result of the above dataset
+  // This will trigger the creation of the Execution Tree and launch it.
+  std::shared_ptr<Iterator> iter = ds->CreateIterator();
+  EXPECT_NE(iter, nullptr);
+
+  // Iterate the dataset and get each row
+  std::unordered_map<std::string, std::shared_ptr<Tensor>> row;
+  iter->GetNextRow(&row);
+
+  uint64_t i = 0;
+  std::vector<int32_t> expected = {2, 1, 4, 5, 6, 7};
+  while (row.size() != 0) {
+    auto ind = row["text"];
+    MS_LOG(INFO) << ind->shape() << " " << *ind;
+    std::shared_ptr<Tensor> expected_item;
+    Tensor::CreateScalar(expected[i], &expected_item);
+    EXPECT_EQ(*ind, *expected_item);
+    iter->GetNextRow(&row);
+    i++;
+  }
+}
+
 TEST_F(MindDataTestPipeline, TestVocabLookupOpFail1) {
   MS_LOG(INFO) << "Doing MindDataTestPipeline-TestVocabLookupOpFail1.";
   // Create a TextFile Dataset
@@ -110,27 +154,6 @@ TEST_F(MindDataTestPipeline, TestVocabLookupOpFail2) {
   EXPECT_EQ(lookup, nullptr);
 }
 
-TEST_F(MindDataTestPipeline, TestVocabLookupOpWithEmptyUnknownToken) {
-  MS_LOG(INFO) << "Doing MindDataTestPipeline-TestVocabLookupOpWithEmptyUnknownToken.";
-
-  // Create a TextFile dataset
-  std::string data_file = datasets_root_path_ + "/testVocab/words.txt";
-  std::shared_ptr<Dataset> ds = TextFile({data_file}, 0, ShuffleMode::kFalse);
-  EXPECT_NE(ds, nullptr);
-
-  // Create a vocab from map
-  std::unordered_map<std::string, int32_t> dict;
-  dict["Home"] = 3;
-  std::shared_ptr<Vocab> vocab = std::make_shared<Vocab>();
-  Status s = Vocab::BuildFromUnorderedMap(dict, &vocab);
-  EXPECT_EQ(s, Status::OK());
-
-  // Create Lookup operation on ds
-  // Expected failure: "" is not a word of vocab
-  std::shared_ptr<TensorOperation> lookup = text::Lookup(vocab, "", DataType("int32"));
-  EXPECT_EQ(lookup, nullptr);
-}
-
 TEST_F(MindDataTestPipeline, TestVocabFromDataset) {
   MS_LOG(INFO) << "Doing MindDataTestPipeline-TestVocabFromDataset.";
 

tests/ut/cpp/dataset/c_api_datasets_test.cc

@@ -133,7 +133,7 @@ TEST_F(MindDataTestPipeline, TestMnistFailWithWrongDatasetDir) {
   MS_LOG(INFO) << "Doing MindDataTestPipeline-TestMnistFailWithWrongDatasetDir.";
 
   // Create a Mnist Dataset
-  std::shared_ptr<Dataset> ds = Mnist("", std::string(), RandomSampler(false, 10));
+  std::shared_ptr<Dataset> ds = Mnist("", "all", RandomSampler(false, 10));
   EXPECT_EQ(ds, nullptr);
 }
 
@@ -142,7 +142,7 @@ TEST_F(MindDataTestPipeline, TestMnistFailWithNullSampler) {
 
   // Create a Mnist Dataset
   std::string folder_path = datasets_root_path_ + "/testMnistData/";
-  std::shared_ptr<Dataset> ds = Mnist(folder_path, std::string(), nullptr);
+  std::shared_ptr<Dataset> ds = Mnist(folder_path, "all", nullptr);
   // Expect failure: sampler can not be nullptr
   EXPECT_EQ(ds, nullptr);
 }

tests/ut/cpp/dataset/c_api_transforms_test.cc

@@ -30,7 +30,7 @@ TEST_F(MindDataTestPipeline, TestCutMixBatchSuccess1) {
   // Create a Cifar10 Dataset
   std::string folder_path = datasets_root_path_ + "/testCifar10Data/";
   int number_of_classes = 10;
-  std::shared_ptr<Dataset> ds = Cifar10(folder_path, std::string(), RandomSampler(false, 10));
+  std::shared_ptr<Dataset> ds = Cifar10(folder_path, "all", RandomSampler(false, 10));
   EXPECT_NE(ds, nullptr);
 
   // Create objects for the tensor ops
@@ -98,7 +98,7 @@ TEST_F(MindDataTestPipeline, TestCutMixBatchSuccess2) {
   // Create a Cifar10 Dataset
   std::string folder_path = datasets_root_path_ + "/testCifar10Data/";
   int number_of_classes = 10;
-  std::shared_ptr<Dataset> ds = Cifar10(folder_path, std::string(), RandomSampler(false, 10));
+  std::shared_ptr<Dataset> ds = Cifar10(folder_path, "all", RandomSampler(false, 10));
   EXPECT_NE(ds, nullptr);
 
   // Create a Batch operation on ds
@@ -156,7 +156,7 @@ TEST_F(MindDataTestPipeline, TestCutMixBatchFail1) {
   // Must fail because alpha can't be negative
   // Create a Cifar10 Dataset
   std::string folder_path = datasets_root_path_ + "/testCifar10Data/";
-  std::shared_ptr<Dataset> ds = Cifar10(folder_path, std::string(), RandomSampler(false, 10));
+  std::shared_ptr<Dataset> ds = Cifar10(folder_path, "all", RandomSampler(false, 10));
   EXPECT_NE(ds, nullptr);
 
   // Create a Batch operation on ds
@@ -181,7 +181,7 @@ TEST_F(MindDataTestPipeline, TestCutMixBatchFail2) {
   // Must fail because prob can't be negative
   // Create a Cifar10 Dataset
   std::string folder_path = datasets_root_path_ + "/testCifar10Data/";
-  std::shared_ptr<Dataset> ds = Cifar10(folder_path, std::string(), RandomSampler(false, 10));
+  std::shared_ptr<Dataset> ds = Cifar10(folder_path, "all", RandomSampler(false, 10));
   EXPECT_NE(ds, nullptr);
 
   // Create a Batch operation on ds
@@ -206,7 +206,7 @@ TEST_F(MindDataTestPipeline, TestCutMixBatchFail3) {
   // Must fail because alpha can't be zero
   // Create a Cifar10 Dataset
   std::string folder_path = datasets_root_path_ + "/testCifar10Data/";
-  std::shared_ptr<Dataset> ds = Cifar10(folder_path, std::string(), RandomSampler(false, 10));
+  std::shared_ptr<Dataset> ds = Cifar10(folder_path, "all", RandomSampler(false, 10));
   EXPECT_NE(ds, nullptr);
 
   // Create a Batch operation on ds
@@ -376,7 +376,7 @@ TEST_F(MindDataTestPipeline, TestHwcToChw) {
 TEST_F(MindDataTestPipeline, TestMixUpBatchFail1) {
   // Create a Cifar10 Dataset
   std::string folder_path = datasets_root_path_ + "/testCifar10Data/";
-  std::shared_ptr<Dataset> ds = Cifar10(folder_path, std::string(), RandomSampler(false, 10));
+  std::shared_ptr<Dataset> ds = Cifar10(folder_path, "all", RandomSampler(false, 10));
   EXPECT_NE(ds, nullptr);
 
   // Create a Batch operation on ds
@@ -400,7 +400,7 @@ TEST_F(MindDataTestPipeline, TestMixUpBatchFail2) {
   // This should fail because alpha can't be zero
   // Create a Cifar10 Dataset
   std::string folder_path = datasets_root_path_ + "/testCifar10Data/";
-  std::shared_ptr<Dataset> ds = Cifar10(folder_path, std::string(), RandomSampler(false, 10));
+  std::shared_ptr<Dataset> ds = Cifar10(folder_path, "all", RandomSampler(false, 10));
   EXPECT_NE(ds, nullptr);
 
   // Create a Batch operation on ds
@@ -423,7 +423,7 @@ TEST_F(MindDataTestPipeline, TestMixUpBatchFail2) {
 TEST_F(MindDataTestPipeline, TestMixUpBatchSuccess1) {
   // Create a Cifar10 Dataset
   std::string folder_path = datasets_root_path_ + "/testCifar10Data/";
-  std::shared_ptr<Dataset> ds = Cifar10(folder_path, std::string(), RandomSampler(false, 10));
+  std::shared_ptr<Dataset> ds = Cifar10(folder_path, "all", RandomSampler(false, 10));
   EXPECT_NE(ds, nullptr);
 
   // Create a Batch operation on ds
@@ -472,7 +472,7 @@ TEST_F(MindDataTestPipeline, TestMixUpBatchSuccess1) {
 TEST_F(MindDataTestPipeline, TestMixUpBatchSuccess2) {
   // Create a Cifar10 Dataset
   std::string folder_path = datasets_root_path_ + "/testCifar10Data/";
-  std::shared_ptr<Dataset> ds = Cifar10(folder_path, std::string(), RandomSampler(false, 10));
+  std::shared_ptr<Dataset> ds = Cifar10(folder_path, "all", RandomSampler(false, 10));
   EXPECT_NE(ds, nullptr);
 
   // Create a Batch operation on ds
@@ -1118,7 +1118,7 @@ TEST_F(MindDataTestPipeline, TestRandomRotation) {
 TEST_F(MindDataTestPipeline, TestUniformAugWithOps) {
   // Create a Mnist Dataset
   std::string folder_path = datasets_root_path_ + "/testMnistData/";
-  std::shared_ptr<Dataset> ds = Mnist(folder_path, "", RandomSampler(false, 20));
+  std::shared_ptr<Dataset> ds = Mnist(folder_path, "all", RandomSampler(false, 20));
   EXPECT_NE(ds, nullptr);
 
   // Create a Repeat operation on ds