Green Sky
5c7231b7a3
git-subtree-dir: external/entt/entt git-subtree-split: fef921132cae7588213d0f9bcd2fb9c8ffd8b7fc
80 lines
2.2 KiB
C++
80 lines
2.2 KiB
C++
#include <gtest/gtest.h>
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#include <entt/config/config.h>
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#include <entt/entity/component.hpp>
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struct empty {};
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struct non_empty {
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int value;
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};
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struct non_movable {
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non_movable() = default;
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non_movable(const non_movable &) = delete;
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non_movable &operator=(const non_movable &) = delete;
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int value;
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};
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struct self_contained {
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static constexpr auto in_place_delete = true;
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static constexpr auto page_size = 4u;
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};
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struct traits_based {};
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template<>
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struct entt::component_traits<traits_based> {
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using type = traits_based;
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static constexpr auto in_place_delete = false;
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static constexpr auto page_size = 8u;
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};
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TEST(Component, VoidType) {
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using traits = entt::component_traits<void>;
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static_assert(traits::in_place_delete);
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static_assert(entt::ignore_as_empty_v<typename traits::type>);
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// we don't really care about this thanks to ignore_as_empty_v
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static_assert(traits::page_size != 0u);
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}
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TEST(Component, Empty) {
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using traits = entt::component_traits<empty>;
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static_assert(!traits::in_place_delete);
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static_assert(entt::ignore_as_empty_v<typename traits::type>);
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static_assert(traits::page_size == 0u);
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}
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TEST(Component, NonEmpty) {
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using traits = entt::component_traits<non_empty>;
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static_assert(!traits::in_place_delete);
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static_assert(!entt::ignore_as_empty_v<typename traits::type>);
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static_assert(traits::page_size == ENTT_PACKED_PAGE);
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}
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TEST(Component, NonMovable) {
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using traits = entt::component_traits<non_movable>;
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static_assert(traits::in_place_delete);
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static_assert(!entt::ignore_as_empty_v<typename traits::type>);
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static_assert(traits::page_size == ENTT_PACKED_PAGE);
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}
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TEST(Component, SelfContained) {
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using traits = entt::component_traits<self_contained>;
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static_assert(traits::in_place_delete);
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static_assert(!entt::ignore_as_empty_v<typename traits::type>);
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static_assert(traits::page_size == 4u);
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}
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TEST(Component, TraitsBased) {
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using traits = entt::component_traits<traits_based>;
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static_assert(!traits::in_place_delete);
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static_assert(!entt::ignore_as_empty_v<typename traits::type>);
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static_assert(traits::page_size == 8u);
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}
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