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- // Copyright 2019 The Chromium Authors. All rights reserved.
- // Use of this source code is governed by a BSD-style license that can be
- // found in the LICENSE file.
- #include "base/parameter_pack.h"
- #include "testing/gtest/include/gtest/gtest.h"
- namespace base {
- TEST(ParameterPack, AnyOf) {
- static_assert(any_of({true, true, true}), "");
- static_assert(any_of({false, false, true, false}), "");
- static_assert(!any_of({false}), "");
- static_assert(!any_of({false, false, false}), "");
- }
- TEST(ParameterPack, AllOf) {
- static_assert(all_of({true, true, true}), "");
- static_assert(!all_of({true, true, true, false}), "");
- static_assert(!all_of({false}), "");
- static_assert(!all_of({false, false}), "");
- }
- TEST(ParameterPack, Count) {
- static_assert(count({1, 2, 2, 2, 2, 2, 3}, 2) == 5u, "");
- }
- TEST(ParameterPack, HasType) {
- static_assert(ParameterPack<int, float, bool>::HasType<int>(), "");
- static_assert(ParameterPack<int, float, bool>::HasType<bool>(), "");
- static_assert(ParameterPack<int, float, bool>::HasType<bool>(), "");
- static_assert(!ParameterPack<int, float, bool>::HasType<void*>(), "");
- }
- TEST(ParameterPack, OnlyHasType) {
- static_assert(ParameterPack<int, int>::OnlyHasType<int>(), "");
- static_assert(ParameterPack<int, int, int, int>::OnlyHasType<int>(), "");
- static_assert(!ParameterPack<int, bool>::OnlyHasType<int>(), "");
- static_assert(!ParameterPack<int, int, bool, int>::OnlyHasType<int>(), "");
- static_assert(!ParameterPack<int, int, int>::OnlyHasType<bool>(), "");
- }
- TEST(ParameterPack, IsUniqueInPack) {
- static_assert(ParameterPack<int, float, bool>::IsUniqueInPack<int>(), "");
- static_assert(!ParameterPack<int, int, bool>::IsUniqueInPack<int>(), "");
- }
- TEST(ParameterPack, IndexInPack) {
- static_assert(ParameterPack<int, float, bool>::IndexInPack<int>() == 0u, "");
- static_assert(ParameterPack<int, float, bool>::IndexInPack<float>() == 1u,
- "");
- static_assert(ParameterPack<int, float, bool>::IndexInPack<bool>() == 2u, "");
- static_assert(
- ParameterPack<int, float, bool>::IndexInPack<void*>() == pack_npos, "");
- }
- TEST(ParameterPack, NthType) {
- static_assert(
- std::is_same<int, ParameterPack<int, float, bool>::NthType<0>>::value,
- "");
- static_assert(
- std::is_same<float, ParameterPack<int, float, bool>::NthType<1>>::value,
- "");
- static_assert(
- std::is_same<bool, ParameterPack<int, float, bool>::NthType<2>>::value,
- "");
- }
- TEST(ParameterPack, IsAllSameType) {
- static_assert(ParameterPack<int>::IsAllSameType(), "");
- static_assert(ParameterPack<int, int, int>::IsAllSameType(), "");
- static_assert(!ParameterPack<int, int, int, int, bool>::IsAllSameType(), "");
- }
- } // namespace base
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