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Squashed 'external/entt/entt/' content from commit fef92113

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git-subtree-dir: external/entt/entt
git-subtree-split: fef921132cae7588213d0f9bcd2fb9c8ffd8b7fc
This commit is contained in:
Green Sky
2023-07-25 11:29:51 +02:00
commit 5c7231b7a3
242 changed files with 146004 additions and 0 deletions
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38
test/entt/core/tuple.cpp Normal file
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#include <tuple>
#include <gtest/gtest.h>
#include <entt/core/tuple.hpp>
TEST(Tuple, IsTuple) {
static_assert(!entt::is_tuple_v<int>);
static_assert(entt::is_tuple_v<std::tuple<>>);
static_assert(entt::is_tuple_v<std::tuple<int>>);
static_assert(entt::is_tuple_v<std::tuple<int, char>>);
}
TEST(Tuple, UnwrapTuple) {
auto single = std::make_tuple(42);
auto multi = std::make_tuple(42, 'c');
auto ref = std::forward_as_tuple(std::get<0>(single));
ASSERT_TRUE((std::is_same_v<decltype(entt::unwrap_tuple(single)), int &>));
ASSERT_TRUE((std::is_same_v<decltype(entt::unwrap_tuple(multi)), std::tuple<int, char> &>));
ASSERT_TRUE((std::is_same_v<decltype(entt::unwrap_tuple(ref)), int &>));
ASSERT_TRUE((std::is_same_v<decltype(entt::unwrap_tuple(std::move(single))), int &&>));
ASSERT_TRUE((std::is_same_v<decltype(entt::unwrap_tuple(std::move(multi))), std::tuple<int, char> &&>));
ASSERT_TRUE((std::is_same_v<decltype(entt::unwrap_tuple(std::move(ref))), int &>));
ASSERT_TRUE((std::is_same_v<decltype(entt::unwrap_tuple(std::as_const(single))), const int &>));
ASSERT_TRUE((std::is_same_v<decltype(entt::unwrap_tuple(std::as_const(multi))), const std::tuple<int, char> &>));
ASSERT_TRUE((std::is_same_v<decltype(entt::unwrap_tuple(std::as_const(ref))), int &>));
ASSERT_EQ(entt::unwrap_tuple(single), 42);
ASSERT_EQ(entt::unwrap_tuple(multi), multi);
ASSERT_EQ(entt::unwrap_tuple(std::move(ref)), 42);
}
TEST(Tuple, ForwardApply) {
ASSERT_EQ(entt::forward_apply{[](auto &&...args) { return sizeof...(args); }}(std::make_tuple()), 0u);
ASSERT_EQ(entt::forward_apply{[](int i) { return i; }}(std::make_tuple(42)), 42);
ASSERT_EQ(entt::forward_apply{[](auto... args) { return (args + ...); }}(std::make_tuple('a', 1u)), 'b');
}