function_equivalence_test.h (2206B)
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 <ostream> 16 17 #include "gtest/gtest.h" 18 #include "test/acm_random.h" 19 #include "test/util.h" 20 21 using libaom_test::ACMRandom; 22 23 namespace libaom_test { 24 // Base class for tests that compare 2 implementations of the same function 25 // for equivalence. The template parameter should be pointer to a function 26 // that is being tested. 27 // 28 // The test takes a 3-parameters encapsulating struct 'FuncParam', containing: 29 // - Pointer to reference function 30 // - Pointer to tested function 31 // - Integer bit depth (default to 0). 32 // 33 // These values are then accessible in the tests as member of params_: 34 // params_.ref_func, params_.tst_func, and params_.bit_depth. 35 // 36 37 template <typename T> 38 struct FuncParam { 39 FuncParam(T ref = nullptr, T tst = nullptr, int depth = 0) 40 : ref_func(ref), tst_func(tst), bit_depth(depth) {} 41 T ref_func; 42 T tst_func; 43 int bit_depth; 44 }; 45 46 template <typename T> 47 std::ostream &operator<<(std::ostream &os, const FuncParam<T> &p) { 48 return os << "bit_depth:" << p.bit_depth 49 << " function:" << reinterpret_cast<const void *>(p.ref_func) 50 << " function:" << reinterpret_cast<const void *>(p.tst_func); 51 } 52 53 template <typename T> 54 class FunctionEquivalenceTest : public ::testing::TestWithParam<FuncParam<T> > { 55 public: 56 FunctionEquivalenceTest() : rng_(ACMRandom::DeterministicSeed()) {} 57 58 ~FunctionEquivalenceTest() override = default; 59 60 void SetUp() override { params_ = this->GetParam(); } 61 62 protected: 63 ACMRandom rng_; 64 FuncParam<T> params_; 65 }; 66 67 } // namespace libaom_test 68 #endif // AOM_TEST_FUNCTION_EQUIVALENCE_TEST_H_