Files
entt/test/entt/meta/meta_pointer.cpp

97 lines
2.5 KiB
C++

#include <gtest/gtest.h>
#include <entt/core/hashed_string.hpp>
#include <entt/meta/meta.hpp>
#include <entt/meta/pointer.hpp>
#include <entt/meta/resolve.hpp>
struct not_copyable_t {
not_copyable_t() = default;
not_copyable_t(const not_copyable_t &) = delete;
not_copyable_t(not_copyable_t &&) = default;
not_copyable_t & operator=(const not_copyable_t &) = delete;
not_copyable_t & operator=(not_copyable_t &&) = default;
};
TEST(MetaPointerLike, DereferenceOperatorInvalidType) {
int value = 0;
entt::meta_any any{value};
ASSERT_FALSE(any.type().is_pointer());
ASSERT_FALSE(any.type().is_pointer_like());
ASSERT_EQ(any.type(), entt::resolve<int>());
auto deref = *any;
ASSERT_FALSE(deref);
}
TEST(MetaPointerLike, DereferenceOperatorConstType) {
const int value = 0;
entt::meta_any any{&value};
ASSERT_TRUE(any.type().is_pointer());
ASSERT_TRUE(any.type().is_pointer_like());
ASSERT_EQ(any.type(), entt::resolve<const int *>());
auto deref = *any;
ASSERT_TRUE(deref);
ASSERT_FALSE(deref.type().is_pointer());
ASSERT_FALSE(deref.type().is_pointer_like());
ASSERT_EQ(deref.type(), entt::resolve<int>());
deref.cast<int>() = 42;
ASSERT_EQ(*any.cast<const int *>(), 0);
ASSERT_EQ(value, 0);
}
TEST(MetaPointerLike, DereferenceOperatorRawPointer) {
int value = 0;
entt::meta_any any{&value};
ASSERT_TRUE(any.type().is_pointer());
ASSERT_TRUE(any.type().is_pointer_like());
ASSERT_EQ(any.type(), entt::resolve<int *>());
auto deref = *any;
ASSERT_TRUE(deref);
ASSERT_FALSE(deref.type().is_pointer());
ASSERT_FALSE(deref.type().is_pointer_like());
ASSERT_EQ(deref.type(), entt::resolve<int>());
deref.cast<int>() = 42;
ASSERT_EQ(*any.cast<int *>(), 42);
ASSERT_EQ(value, 42);
}
TEST(MetaPointerLike, DereferenceOperatorSmartPointer) {
auto value = std::make_shared<int>(0);
entt::meta_any any{value};
ASSERT_FALSE(any.type().is_pointer());
ASSERT_TRUE(any.type().is_pointer_like());
ASSERT_EQ(any.type(), entt::resolve<std::shared_ptr<int>>());
auto deref = *any;
ASSERT_TRUE(deref);
ASSERT_FALSE(deref.type().is_pointer());
ASSERT_FALSE(deref.type().is_pointer_like());
ASSERT_EQ(deref.type(), entt::resolve<int>());
deref.cast<int>() = 42;
ASSERT_EQ(*any.cast<std::shared_ptr<int>>(), 42);
ASSERT_EQ(*value, 42);
}
TEST(MetaPointerLike, PointerToMoveOnlyType) {
const not_copyable_t instance;
entt::meta_any any{&instance};
ASSERT_TRUE(any);
ASSERT_FALSE(*any);
}