| // Copyright 2019 The Chromium Authors |
| // 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_v<int,ParameterPack<int,float,bool>::NthType<0>>,""); |
| static_assert( |
| std::is_same_v<float,ParameterPack<int,float,bool>::NthType<1>>,""); |
| static_assert( |
| std::is_same_v<bool,ParameterPack<int,float,bool>::NthType<2>>,""); |
| } |
| |
| 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 |
