Method SetUp

cpp/src/arrow/sparse_tensor_test.cc:1435–1454

class TestSparseCSFTensorBase : public TestSparseTensorBase<Int16Type> {
 public:
  void SetUp() {
    dim_names_ = {"a", "b", "c", "d"};
    shape_ = {2, 3, 4, 5};

    dense_values_[0][0][0][1] = 1;
    dense_values_[0][0][0][2] = 2;
    dense_values_[0][1][0][0] = 3;
    dense_values_[0][1][0][2] = 4;
    dense_values_[0][1][1][0] = 5;
    dense_values_[1][1][1][0] = 6;
    dense_values_[1][1][1][1] = 7;
    dense_values_[1][1][1][2] = 8;

    auto dense_buffer = Buffer::Wrap(dense_values_, sizeof(dense_values_));
    Tensor dense_tensor_(int16(), dense_buffer, shape_, {}, dim_names_);
    ASSERT_OK_AND_ASSIGN(
        sparse_tensor_from_dense_,
        SparseCSFTensor::Make(dense_tensor_,
                              TypeTraits<IndexValueType>::type_singleton()));
  }

 protected:
  std::vector<int64_t> shape_;