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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
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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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79
test/entt/entity/component.cpp Normal file
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#include <gtest/gtest.h>
#include <entt/config/config.h>
#include <entt/entity/component.hpp>
struct empty {};
struct non_empty {
int value;
};
struct non_movable {
non_movable() = default;
non_movable(const non_movable &) = delete;
non_movable &operator=(const non_movable &) = delete;
int value;
};
struct self_contained {
static constexpr auto in_place_delete = true;
static constexpr auto page_size = 4u;
};
struct traits_based {};
template<>
struct entt::component_traits<traits_based> {
using type = traits_based;
static constexpr auto in_place_delete = false;
static constexpr auto page_size = 8u;
};
TEST(Component, VoidType) {
using traits = entt::component_traits<void>;
static_assert(traits::in_place_delete);
static_assert(entt::ignore_as_empty_v<typename traits::type>);
// we don't really care about this thanks to ignore_as_empty_v
static_assert(traits::page_size != 0u);
}
TEST(Component, Empty) {
using traits = entt::component_traits<empty>;
static_assert(!traits::in_place_delete);
static_assert(entt::ignore_as_empty_v<typename traits::type>);
static_assert(traits::page_size == 0u);
}
TEST(Component, NonEmpty) {
using traits = entt::component_traits<non_empty>;
static_assert(!traits::in_place_delete);
static_assert(!entt::ignore_as_empty_v<typename traits::type>);
static_assert(traits::page_size == ENTT_PACKED_PAGE);
}
TEST(Component, NonMovable) {
using traits = entt::component_traits<non_movable>;
static_assert(traits::in_place_delete);
static_assert(!entt::ignore_as_empty_v<typename traits::type>);
static_assert(traits::page_size == ENTT_PACKED_PAGE);
}
TEST(Component, SelfContained) {
using traits = entt::component_traits<self_contained>;
static_assert(traits::in_place_delete);
static_assert(!entt::ignore_as_empty_v<typename traits::type>);
static_assert(traits::page_size == 4u);
}
TEST(Component, TraitsBased) {
using traits = entt::component_traits<traits_based>;
static_assert(!traits::in_place_delete);
static_assert(!entt::ignore_as_empty_v<typename traits::type>);
static_assert(traits::page_size == 8u);
}