text: // Copyright (C) 2018-2021 Intel Corporation
  // SPDX-License-Identifier: Apache-2.0
  //
  
  #include "layer_transformation.hpp"
  
  #include <string>
  #include <sstream>
  #include <gtest/gtest.h>
  
  #include <transformations/init_node_info.hpp>
  #include <low_precision/clamp.hpp>
  
  #include "common_test_utils/ngraph_test_utils.hpp"
  #include "lpt_ngraph_functions/common/dequantization_operations.hpp"
  #include "lpt_ngraph_functions/clamp_function.hpp"
  #include "simple_low_precision_transformer.hpp"
  
  
  namespace {
  using namespace testing;
  using namespace ngraph::pass;
  
  class ClampTransformationTestValues {
  public:
      class Actual {
      public:
          ngraph::element::Type precisionBeforeDequantization;
          ngraph::builder::subgraph::DequantizationOperations dequantization;
      };
  
      class Expected {
      public:
          ngraph::element::Type precisionBeforeDequantization;
          ngraph::builder::subgraph::DequantizationOperations dequantizationBefore;
          ngraph::element::Type precisionAfterOperation;
          ngraph::builder::subgraph::DequantizationOperations dequantizationAfter;
      };
  
      ngraph::Shape inputShape;
      ngraph::pass::low_precision::LayerTransformation::Params params;
      Actual actual;
      Expected expected;
      bool nonDequantizationMultiply;
  };
  
  class ClampTransformation : public LayerTransformation, public testing::WithParamInterface<ClampTransformationTestValues> {
  public:
      void SetUp() override {
          const ClampTransformationTestValues testValues = GetParam();
  
          actualFunction = testValues.nonDequantizationMultiply ?
              ngraph::builder::subgraph::ClampFunction::getWithNonDequantizationMultiply(
                  testValues.inputShape,
                  testValues.actual.precisionBeforeDequantization) :
              ngraph::builder::subgraph::ClampFunction::getOriginal(
                  testValues.inputShape,
                  testValues.actual.precisionBeforeDequantization,
                  testValues.actual.dequantization);
  
          SimpleLowPrecisionTransformer transformer;
          transformer.add<ngraph::pass::low_precision::ClampTransformation, ngraph::opset1::Clamp>(testValues.params);
          transformer.transform(actualFunction);
  
          referenceFunction = testValues.nonDequantizationMultiply ?
              ngraph::builder::subgraph::ClampFunction::getWithNonDequantizationMultiply(
                  testValues.inputShape,
                  testValues.actual.precisionBeforeDequantization) :
              ngraph::builder::subgraph::ClampFunction::getReference(
                  testValues.inputShape,
                  testValues.expected.precisionBeforeDequantization,
                  testValues.expected.dequantizationBefore,
                  testValues.expected.precisionAfterOperation,
                  testValues.expected.dequantizationAfter);
      }
  
      static std::string getTestCaseName(testing::TestParamInfo<ClampTransformationTestValues> obj) {
          const ClampTransformationTestValues testValues = obj.param;
  
          std::ostringstream result;
          result << toString(testValues.params) << "_" <<
              testValues.inputShape << "_" <<
              testValues.actual.precisionBeforeDequantization << "_" <<
              testValues.actual.dequantization << "_" <<
              testValues.expected.dequantizationBefore <<
              (testValues.nonDequantizationMultiply ? "non_deq_mul" : "");
          return result.str();
      }
  };
  
  TEST_P(ClampTransformation, CompareFunctions) {
      actualFunction->validate_nodes_and_infer_types();
      auto res = compare_functions(referenceFunction, actualFunction, true, true);
      ASSERT_TRUE(res.first) << res.second;
  }
  
  const std::vector<ClampTransformationTestValues> testValues = {
      // U8 per tensor quantization
      {
          ngraph::Shape({ 1, 3, 224, 224 }),
          LayerTransformation::createParamsU8I8(),
          // ActualValues
          {
              ngraph::element::u8,
              {{ngraph::element::f32}, {128.f}, {3.f}}
          },
          // ExpectedValues
          {
              ngraph::element::u8,
              {{}, {}, {}},
              ngraph::element::f32,
              {{}, {128.f}, {3.f}}
          }
      },
      // U8 per tensor quantization
      {
          ngraph::Shape({ 1, 3, 224, 224 }),
          LayerTransformation::createParamsU8I8(),
          // ActualValues
          {
              ngraph::element::u8,
              {
                  {ngraph::element::f32},
                  {{128.f}, ngraph::element::f32, {}, false, 1, ngraph::element::u8, true},
                  {3.f}
              }
          },
          // ExpectedValues
          {
              ngraph::element::u8,
              {{}, {}, {}},
              ngraph::element::f32,
              {
                  {},
                  {{128.f}, ngraph::element::f32, {}, false, 1, ngraph::element::u8, true},
                  {3.f}
              }
          }
      },
      // I8 per tensor quantization
      {
          ngraph::Shape({ 1, 3, 224, 224 }),
          LayerTransformation::createParamsI8I8(),
          {
              ngraph::element::i8,
              {{ngraph::element::f32}, {128.f}, {-5.f}}
          },
          {
              ngraph::element::i8,
              {{}, {}, {}},
              ngraph::element::f32,
              {{}, {128.f}, {-5.f}}
          }
      },
      // U8 without convert
      {
          ngraph::Shape({ 1, 3, 224, 224 }),
          LayerTransformation::createParamsU8I8(),
          {
              ngraph::element::f32,
              {{}, {128.f}, {3.f}}
          },
          {
              ngraph::element::f32,
              {{}, {}, {}},
              ngraph::element::f32,
              {{}, {128.f}, {3.f}}
          }
      },
      // I8 without convert
      {
          ngraph::Shape({ 1, 3, 224, 224 }),
          LayerTransformation::createParamsI8I8(),
          {
              ngraph::element::f32,
              {{}, {128.f}, {3.f}}
          },
          {
              ngraph::element::f32,
              {{}, {}, {}},
              ngraph::element::f32,
              {{}, {128.f}, {3.f}}
          }
  },
      // U8 without subtract
      {
          ngraph::Shape({ 1, 3, 224, 224 }),
          LayerTransformation::createParamsU8I8(),
          {
              ngraph::element::u8,
              {{ngraph::element::f32}, {}, {3.f}}
          },
          {
              ngraph::element::u8,
              {{}, {}, {}},
              ngraph::element::f32,
              {{}, {}, {3.f}}
          }
      },
      // I8 without subtract
      {
          ngraph::Shape({ 1, 3, 224, 224 }),
          LayerTransformation::createParamsI8I8(),
          {
              ngraph::element::i8,
              {{ngraph::element::f32}, {}, {3.f}}
          },
          {
              ngraph::element::i8,
              {{}, {}, {}},
              ngraph::element::f32,
              {{}, {}, {3.f}}
          }
      },
      // U8 per channel quantization with different values
      {
          ngraph::Shape({ 1, 3, 224, 224 }),
          LayerTransformation::createParamsU8I8(),
          {
              ngraph::element::u8,
              {
                  {ngraph::element::f32},
                  {{128.f, 0.f, 128.f / 2}},
                  {{3.f, 1.f, 2.f}}
              }
          },
          {
              ngraph::element::u8,
              {
                  {ngraph::element::f32},
                  {{128.f, 0.f, 128.f / 2}},
                  {{3.f, 1.f, 2.f}}
              },
              ngraph::element::f32,
              {{}, {}, {}}
          }
      },
      // I8 per channel quantization with different values
      {
          ngraph::Shape({ 1, 3, 224, 224 }),
          LayerTransformation::createParamsI8I8(),
          {
              ngraph::element::i8,
              {
                  {ngraph::element::f32},
                  {{128.f, 0.f, 128.f / 2}},
                  {{3.f, 1.f, 2.f}}
              }
          },
          {
              ngraph::element::i8,
              {
                  {ngraph::element::f32},
                  {{128.f, 0.f, 128.f / 2}},
                  {{3.f, 1.f, 2.f}}
              },
              ngraph::element::f32,
              {{}, {}, {}}
          }
      },
      // U8 per channel quantization with the same values
      {
          ngraph::Shape({ 1, 3, 224, 224 }),
          LayerTransformation::createParamsU8I8(),
          {
              ngraph::element::u8,
              {
                  {ngraph::element::f32},
                  {{128.f, 128.f, 128.f}},
                  {{3.f, 3.f, 3.f}}
              }
          },
          {
              ngraph::element::u8,
              {{}, {}, {}},
              ngraph::element::f32,
              {
                  {},
                  {{128.f, 128.f, 128.f}},
                  {{3.f, 3.f, 3.f}}
              },
          }
      },
      // I8 per channel quantization with the same values
      {
          ngraph::Shape({ 1, 3, 224, 224 }),
          LayerTransformation::createParamsI8I8(),
          {
              ngraph::element::i8,
              {
                  {ngraph::element::f32},
                  {{128.f, 128.f, 128.f}},
                  {{3.f, 3.f, 3.f}}
              }
          },
          {
              ngraph::element::i8,
              {{}, {}, {}},
              ngraph::element::f32,
              {
                  {},
                  {{128.f, 128.f, 128.f}},
                  {{3.f, 3.f, 3.f}}
              },
          }
      },
      // U8 dequantization in second dimension
      {
          ngraph::Shape({ 1, 3, 4, 4 }),
          LayerTransformation::createParamsU8I8(),
          {
              ngraph::element::u8,
              {
                  {ngraph::element::f32},
                  {{128.f, 128.f, 128.f, 128.f}, ngraph::element::f32, {1, 1, 4, 1}},
                  {{3.f, 3.f, 3.f, 3.f}, ngraph::element::f32, {1, 1, 4, 1}}
              }
          },
          {
              ngraph::element::u8,
              {
                  {ngraph::element::f32},
                  {{128.f, 128.f, 128.f, 128.f}, ngraph::element::f32, {1, 1, 4, 1}},
                  {{3.f, 3.f, 3.f, 3.f}, ngraph::element::f32, {1, 1, 4, 1}}
              },
              ngraph::element::f32,
              {{}, {}, {}}
          }
      },
      // I8 dequantization in second dimension
      {
          ngraph::Shape({ 1, 3, 4, 4 }),
          LayerTransformation::createParamsI8I8(),
          {
              ngraph::element::i8,
              {
                  {ngraph::element::f32},
                  {{128.f, 128.f, 128.f, 128.f}, ngraph::element::f32, {1, 1, 4, 1}},
                  {{3.f, 3.f, 3.f, 3.f}, ngraph::element::f32, {1, 1, 4, 1}}
              }
          },
          {
              ngraph::element::i8,
              {
                  {ngraph::element::f32},
                  {{128.f, 128.f, 128.f, 128.f}, ngraph::element::f32, {1, 1, 4, 1}},
                  {{3.f, 3.f, 3.f, 3.f}, ngraph::element::f32, {1, 1, 4, 1}}
              },
              ngraph::element::f32,
              {{}, {}, {}}
          }
      },
      // U8 asymmetric quantization
      {
          ngraph::Shape({ 1, 3, 224, 224 }),
          LayerTransformation::createParamsU8I8().setSupportAsymmetricQuantization(true),
          {
              ngraph::element::u8,
              {
                  {ngraph::element::f32},
                  {{ 128.f, 0.f, 128.f }},
                  {{ 3.f, 3.f, 3.f }}
              }
          },
          {
              ngraph::element::u8,
              {
                  {ngraph::element::f32},
                  {{ 128.f, 0.f, 128.f }},
                  {{ 3.f, 3.f, 3.f }}
              },
              ngraph::element::f32,
              {{}, {}, {}}
          }
      },
      // U8 without asymmetric quantization
      {
          ngraph::Shape({ 1, 3, 224, 224 }),
          LayerTransformation::createParamsU8I8().setSupportAsymmetricQuantization(false),
          {
              ngraph::element::u8,
              {
                  {ngraph::element::f32},
                  {{ 128.f, 0.f, 128.f }},
                  {{ 3.f, 3.f, 3.f }}
              }
          },
          {
              ngraph::element::u8,
              {
                  {ngraph::element::f32},
                  {{ 128.f, 0.f, 128.f }},
                  {{ 3.f, 3.f, 3.f }}
              },
              ngraph::element::f32,
              {{}, {}, {}}
          }
      },
      // per channel quantization with small values
      {
          ngraph::Shape({ 1, 3, 224, 224 }),
          LayerTransformation::createParamsU8I8(),
          {
              ngraph::element::u8,
              {
                      {ngraph::element::f32},
                      {{1e-14, 1e-12, 1e-15}},
                      {{1e-14, 1e-12, 1e-15}}
              }
          },
          {
              ngraph::element::u8,
              {
                      {ngraph::element::f32},
                      {{1e-14, 1e-12, 1e-15}},
                      {{1e-14, 1e-12, 1e-15}}
              },
              ngraph::element::f32,
              {{}, {}, {}}
          }
      },
      // without dequantization
      {
          ngraph::Shape({ 1, 3, 224, 224 }),
          LayerTransformation::createParamsU8I8(),
          {
              ngraph::element::f32,
              {{}, {}, {}}
          },
          {
              ngraph::element::f32,
              {{}, {}, {}},
              ngraph::element::f32,
              {{}, {}, {}}
          },
      },
      // with non dequantization multiply (issue #49965)
      {
          ngraph::Shape({ 1, 3, 224, 224 }),
          LayerTransformation::createParamsU8I8(),
          {
              ngraph::element::f32,
              {{}, {}, {}}
          },
          {
              ngraph::element::f32,
              {{}, {}, {}},
              ngraph::element::f32,
              {{}, {}, {}}
          },
          true // non dequantization multiply
      },
  };
  INSTANTIATE_TEST_CASE_P(
      smoke_LPT,
      ClampTransformation,
      ::testing::ValuesIn(testValues),
      ClampTransformation::getTestCaseName);
  } // namespace
  