text: // Copyright (C) 2018-2022 Intel Corporation
  // SPDX-License-Identifier: Apache-2.0
  //
  
  #include <gtest/gtest.h>
  
  #include <string>
  #include <memory>
  
  #include <ngraph/function.hpp>
  #include <ngraph/opsets/opset5.hpp>
  #include <ngraph/pass/manager.hpp>
  #include <transformations/op_conversions/log_softmax_decomposition.hpp>
  #include <transformations/init_node_info.hpp>
  #include <transformations/utils/utils.hpp>
  
  #include "common_test_utils/ngraph_test_utils.hpp"
  
  using namespace testing;
  
  TEST_F(TransformationTestsF, LogSoftmaxDecomposition) {
      {
          auto data = std::make_shared<ngraph::opset5::Parameter>(ngraph::element::f32, ngraph::Shape{3, 2});
          auto log_softmax = std::make_shared<ngraph::opset5::LogSoftmax>(data, 1);
  
          function = std::make_shared<ngraph::Function>(ngraph::NodeVector{log_softmax}, ngraph::ParameterVector{data});
  
          manager.register_pass<ngraph::pass::LogSoftmaxDecomposition>();
      }
  
      {
          auto input0 = std::make_shared<ngraph::opset5::Parameter>(ngraph::element::f32, ngraph::Shape{3, 2});
          auto axis1_const = ngraph::opset5::Constant::create(ngraph::element::i64, ngraph::Shape{1}, {1});
          auto max = std::make_shared<ngraph::opset5::ReduceMax>(input0, axis1_const, true);
          auto sub = std::make_shared<ngraph::opset5::Subtract>(input0, max);
          auto exp = std::make_shared<ngraph::opset5::Exp>(sub);
          auto axis2_const = ngraph::opset5::Constant::create(ngraph::element::i64, ngraph::Shape{1}, {1});
          auto sum = std::make_shared<ngraph::opset5::ReduceSum>(exp, axis2_const, true);
          auto log = std::make_shared<ngraph::opset5::Log>(sum);
          auto sub_end = std::make_shared<ngraph::opset5::Subtract>(sub, log);
  
          function_ref = std::make_shared<ngraph::Function>(ngraph::NodeVector{sub_end}, ngraph::ParameterVector{input0});
      }
  }
  