1 /* 2 * Copyright (c) 2016, Alliance for Open Media. All rights reserved 3 * 4 * This source code is subject to the terms of the BSD 2 Clause License and 5 * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License 6 * was not distributed with this source code in the LICENSE file, you can 7 * obtain it at www.aomedia.org/license/software. If the Alliance for Open 8 * Media Patent License 1.0 was not distributed with this source code in the 9 * PATENTS file, you can obtain it at www.aomedia.org/license/patent. 10 */ 11 12 #ifndef AOM_TEST_FUNCTION_EQUIVALENCE_TEST_H_ 13 #define AOM_TEST_FUNCTION_EQUIVALENCE_TEST_H_ 14 15 #include "third_party/googletest/src/googletest/include/gtest/gtest.h" 16 #include "test/acm_random.h" 17 #include "test/clear_system_state.h" 18 #include "test/util.h" 19 20 using libaom_test::ACMRandom; 21 22 namespace libaom_test { 23 // Base class for tests that compare 2 implementations of the same function 24 // for equivalence. The template parameter should be pointer to a function 25 // that is being tested. 26 // 27 // The test takes a 3-parameters encapsulating struct 'FuncParam', containing: 28 // - Pointer to reference function 29 // - Pointer to tested function 30 // - Integer bit depth (default to 0). 31 // 32 // These values are then accessible in the tests as member of params_: 33 // params_.ref_func, params_.tst_func, and params_.bit_depth. 34 // 35 36 template <typename T> 37 struct FuncParam { 38 FuncParam(T ref = NULL, T tst = NULL, int bit_depth = 0) 39 : ref_func(ref), tst_func(tst), bit_depth(bit_depth) {} 40 T ref_func; 41 T tst_func; 42 int bit_depth; 43 }; 44 45 template <typename T> 46 std::ostream &operator<<(std::ostream &os, const FuncParam<T> &p) { 47 return os << "bit_depth:" << p.bit_depth 48 << " function:" << reinterpret_cast<const void *>(p.ref_func) 49 << " function:" << reinterpret_cast<const void *>(p.tst_func); 50 } 51 52 template <typename T> 53 class FunctionEquivalenceTest : public ::testing::TestWithParam<FuncParam<T> > { 54 public: 55 FunctionEquivalenceTest() : rng_(ACMRandom::DeterministicSeed()) {} 56 57 virtual ~FunctionEquivalenceTest() {} 58 59 virtual void SetUp() { params_ = this->GetParam(); } 60 61 virtual void TearDown() { libaom_test::ClearSystemState(); } 62 63 protected: 64 ACMRandom rng_; 65 FuncParam<T> params_; 66 }; 67 68 } // namespace libaom_test 69 #endif // AOM_TEST_FUNCTION_EQUIVALENCE_TEST_H_ 70
