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      1 /* Copyright 2017 The TensorFlow Authors. All Rights Reserved.
      2 
      3 Licensed under the Apache License, Version 2.0 (the "License");
      4 you may not use this file except in compliance with the License.
      5 You may obtain a copy of the License at
      6 
      7     http://www.apache.org/licenses/LICENSE-2.0
      8 
      9 Unless required by applicable law or agreed to in writing, software
     10 distributed under the License is distributed on an "AS IS" BASIS,
     11 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     12 See the License for the specific language governing permissions and
     13 limitations under the License.
     14 ==============================================================================*/
     15 
     16 #include <vector>
     17 
     18 #include <gtest/gtest.h>
     19 #include "tensorflow/lite/interpreter.h"
     20 #include "tensorflow/lite/kernels/register.h"
     21 #include "tensorflow/lite/kernels/test_util.h"
     22 #include "tensorflow/lite/model.h"
     23 
     24 namespace tflite {
     25 namespace {
     26 
     27 using ::testing::ElementsAre;
     28 
     29 class LSHProjectionOpModel : public SingleOpModel {
     30  public:
     31   LSHProjectionOpModel(LSHProjectionType type,
     32                        std::initializer_list<int> hash_shape,
     33                        std::initializer_list<int> input_shape,
     34                        std::initializer_list<int> weight_shape) {
     35     hash_ = AddInput(TensorType_FLOAT32);
     36     input_ = AddInput(TensorType_INT32);
     37     if (weight_shape.size() > 0) {
     38       weight_ = AddInput(TensorType_FLOAT32);
     39     }
     40     output_ = AddOutput(TensorType_INT32);
     41 
     42     SetBuiltinOp(BuiltinOperator_LSH_PROJECTION,
     43                  BuiltinOptions_LSHProjectionOptions,
     44                  CreateLSHProjectionOptions(builder_, type).Union());
     45     if (weight_shape.size() > 0) {
     46       BuildInterpreter({hash_shape, input_shape, weight_shape});
     47     } else {
     48       BuildInterpreter({hash_shape, input_shape});
     49     }
     50 
     51     output_size_ = 1;
     52     for (int i : hash_shape) {
     53       output_size_ *= i;
     54       if (type == LSHProjectionType_SPARSE) {
     55         break;
     56       }
     57     }
     58   }
     59   void SetInput(std::initializer_list<int> data) {
     60     PopulateTensor(input_, data);
     61   }
     62 
     63   void SetHash(std::initializer_list<float> data) {
     64     PopulateTensor(hash_, data);
     65   }
     66 
     67   void SetWeight(std::initializer_list<float> f) { PopulateTensor(weight_, f); }
     68 
     69   std::vector<int> GetOutput() { return ExtractVector<int>(output_); }
     70 
     71  private:
     72   int input_;
     73   int hash_;
     74   int weight_;
     75   int output_;
     76 
     77   int output_size_;
     78 };
     79 
     80 TEST(LSHProjectionOpTest2, Dense1DInputs) {
     81   LSHProjectionOpModel m(LSHProjectionType_DENSE, {3, 2}, {5}, {5});
     82 
     83   m.SetInput({12345, 54321, 67890, 9876, -12345678});
     84   m.SetHash({0.123, 0.456, -0.321, 1.234, 5.678, -4.321});
     85   m.SetWeight({1.0, 1.0, 1.0, 1.0, 1.0});
     86 
     87   m.Invoke();
     88 
     89   EXPECT_THAT(m.GetOutput(), ElementsAre(0, 0, 0, 1, 0, 0));
     90 }
     91 
     92 TEST(LSHProjectionOpTest2, Sparse1DInputs) {
     93   LSHProjectionOpModel m(LSHProjectionType_SPARSE, {3, 2}, {5}, {});
     94 
     95   m.SetInput({12345, 54321, 67890, 9876, -12345678});
     96   m.SetHash({0.123, 0.456, -0.321, 1.234, 5.678, -4.321});
     97 
     98   m.Invoke();
     99 
    100   EXPECT_THAT(m.GetOutput(), ElementsAre(0 + 0, 4 + 1, 8 + 0));
    101 }
    102 
    103 TEST(LSHProjectionOpTest2, Sparse3DInputs) {
    104   LSHProjectionOpModel m(LSHProjectionType_SPARSE, {3, 2}, {5, 2, 2}, {5});
    105 
    106   m.SetInput({1234, 2345, 3456, 1234, 4567, 5678, 6789, 4567, 7891, 8912,
    107               9123, 7890, -987, -876, -765, -987, -543, -432, -321, -543});
    108   m.SetHash({0.123, 0.456, -0.321, 1.234, 5.678, -4.321});
    109   m.SetWeight({0.12, 0.34, 0.56, 0.67, 0.78});
    110 
    111   m.Invoke();
    112 
    113   EXPECT_THAT(m.GetOutput(), ElementsAre(0 + 2, 4 + 1, 8 + 1));
    114 }
    115 
    116 }  // namespace
    117 }  // namespace tflite
    118 
    119 int main(int argc, char** argv) {
    120   ::tflite::LogToStderr();
    121   ::testing::InitGoogleTest(&argc, argv);
    122   return RUN_ALL_TESTS();
    123 }
    124