tests: updated tests for the resource module

This commit is contained in:
Michele Caini
2022-03-31 15:43:44 +02:00
parent c54409bdfb
commit 428bfbd810
4 changed files with 531 additions and 224 deletions

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@@ -251,6 +251,8 @@ SETUP_BASIC_TEST(scheduler entt/process/scheduler.cpp)
# Test resource
SETUP_BASIC_TEST(resource entt/resource/resource.cpp)
SETUP_BASIC_TEST(resource_cache entt/resource/resource_cache.cpp)
SETUP_BASIC_TEST(resource_loader entt/resource/resource_loader.cpp)
# Test signal

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@@ -1,266 +1,130 @@
#include <memory>
#include <type_traits>
#include <utility>
#include <gtest/gtest.h>
#include <entt/config/config.h>
#include <entt/core/hashed_string.hpp>
#include <entt/core/type_info.hpp>
#include <entt/resource/cache.hpp>
#include <entt/resource/handle.hpp>
#include <entt/resource/resource.hpp>
struct resource {
virtual ~resource() = default;
struct base {
virtual ~base() = default;
virtual const entt::type_info &type() const ENTT_NOEXCEPT {
return entt::type_id<resource>();
return entt::type_id<base>();
}
int value;
};
struct derived_resource: resource {
struct derived: base {
const entt::type_info &type() const ENTT_NOEXCEPT override {
return entt::type_id<derived_resource>();
}
};
template<typename Resource>
struct loader {
using value_type = Resource;
entt::resource_handle<Resource> operator()(int value) const {
if(value < 0) {
return {};
}
auto res = std::shared_ptr<Resource>(new Resource);
res->value = value;
return res;
return entt::type_id<derived>();
}
};
template<typename Type, typename Other>
entt::resource_handle<Type> dynamic_resource_handle_cast(const entt::resource_handle<Other> &other) {
entt::resource<Type> dynamic_resource_cast(const entt::resource<Other> &other) {
if(other->type() == entt::type_id<Type>()) {
return entt::resource_handle<Type>{other, static_cast<Type &>(other.get())};
return entt::resource<Type>{other, static_cast<Type &>(*other)};
}
return {};
}
TEST(Resource, Functionalities) {
entt::resource_cache<resource, loader<resource>> cache;
entt::resource<derived> resource{};
constexpr auto hs1 = entt::hashed_string{"res1"};
constexpr auto hs2 = entt::hashed_string{"res2"};
ASSERT_FALSE(resource);
ASSERT_EQ(resource.operator->(), nullptr);
ASSERT_EQ(resource.use_count(), 0l);
ASSERT_EQ(cache.size(), 0u);
ASSERT_TRUE(cache.empty());
ASSERT_FALSE(cache.contains(hs1));
ASSERT_FALSE(cache.contains(hs2));
const auto value = std::make_shared<derived>();
entt::resource<derived> other{value};
ASSERT_FALSE(cache.load(hs1, -1));
ASSERT_FALSE(cache.reload(hs1, -1));
ASSERT_EQ(cache.size(), 0u);
ASSERT_TRUE(cache.empty());
ASSERT_FALSE(cache.contains(hs1));
ASSERT_FALSE(cache.contains(hs2));
ASSERT_TRUE(cache.load(hs1, 42));
ASSERT_TRUE(cache.reload(hs1, 42));
ASSERT_EQ(cache.handle(hs1).use_count(), 2);
auto tmp = cache.handle(hs1);
ASSERT_EQ(std::as_const(cache).handle(hs1).use_count(), 3);
ASSERT_TRUE(static_cast<bool>(tmp));
tmp = {};
ASSERT_EQ(cache.handle(hs1).use_count(), 2);
ASSERT_FALSE(static_cast<bool>(tmp));
ASSERT_NE(cache.size(), 0u);
ASSERT_FALSE(cache.empty());
ASSERT_TRUE(cache.contains(hs1));
ASSERT_FALSE(cache.contains(hs2));
ASSERT_EQ((*std::as_const(cache).handle(hs1)).value, 42);
ASSERT_TRUE(cache.load(hs1, 42));
ASSERT_TRUE(cache.load(hs2, 42));
ASSERT_NE(cache.size(), 0u);
ASSERT_FALSE(cache.empty());
ASSERT_TRUE(cache.contains(hs1));
ASSERT_TRUE(cache.contains(hs2));
ASSERT_EQ((*cache.handle(hs1)).value, 42);
ASSERT_EQ(std::as_const(cache).handle(hs2)->value, 42);
ASSERT_NO_FATAL_FAILURE(cache.discard(hs1));
ASSERT_FALSE(cache.contains(hs1));
ASSERT_TRUE(cache.contains(hs2));
ASSERT_EQ(cache.handle(hs2)->value, 42);
ASSERT_TRUE(cache.load(hs1, 42));
ASSERT_NO_FATAL_FAILURE(cache.clear());
ASSERT_EQ(cache.size(), 0u);
ASSERT_TRUE(cache.empty());
ASSERT_FALSE(cache.contains(hs1));
ASSERT_FALSE(cache.contains(hs2));
ASSERT_TRUE(cache.load(hs1, 42));
ASSERT_NE(cache.size(), 0u);
ASSERT_FALSE(cache.empty());
ASSERT_TRUE(cache.handle(hs1));
ASSERT_FALSE(cache.handle(hs2));
ASSERT_TRUE(std::as_const(cache).handle(hs1));
ASSERT_FALSE(std::as_const(cache).handle(hs2));
ASSERT_TRUE(std::as_const(cache).handle(hs1));
ASSERT_EQ(&cache.handle(hs1).get(), &static_cast<const resource &>(cache.handle(hs1)));
ASSERT_NO_FATAL_FAILURE(cache.clear());
ASSERT_EQ(cache.size(), 0u);
ASSERT_TRUE(cache.empty());
ASSERT_TRUE(cache.temp(42));
ASSERT_TRUE(cache.empty());
ASSERT_FALSE(entt::resource_handle<resource>{});
ASSERT_TRUE(std::is_copy_constructible_v<entt::resource_handle<resource>>);
ASSERT_TRUE(std::is_move_constructible_v<entt::resource_handle<resource>>);
ASSERT_TRUE(std::is_copy_assignable_v<entt::resource_handle<resource>>);
ASSERT_TRUE(std::is_move_assignable_v<entt::resource_handle<resource>>);
}
TEST(Resource, ConstNonConstHandle) {
entt::resource_cache<resource, loader<resource>> cache;
entt::resource_handle<resource> handle = cache.temp(42);
entt::resource_handle<const resource> chandle = handle;
static_assert(std::is_same_v<decltype(handle.get()), resource &>);
static_assert(std::is_same_v<decltype(chandle.get()), const resource &>);
static_assert(std::is_same_v<decltype(std::as_const(handle).get()), resource &>);
ASSERT_TRUE(chandle);
ASSERT_EQ(handle, chandle);
ASSERT_NE(handle, entt::resource_handle<resource>{});
ASSERT_EQ(handle.use_count(), 2u);
ASSERT_EQ(chandle->value, 42);
chandle = {};
ASSERT_FALSE(chandle);
ASSERT_EQ(handle.use_count(), 1u);
}
TEST(Resource, MutableHandle) {
entt::resource_cache<resource, loader<resource>> cache;
constexpr auto hs = entt::hashed_string{"res"};
auto handle = cache.load(hs, 0);
ASSERT_TRUE(handle);
++handle.get().value;
++static_cast<resource &>(handle).value;
++(*handle).value;
++handle->value;
ASSERT_EQ(cache.handle(hs)->value, 4);
}
TEST(Resource, HandleImplicitCast) {
entt::resource_cache<resource, loader<derived_resource>> cache;
auto handle = cache.temp(0);
auto resource = std::make_shared<derived_resource>();
entt::resource_handle<derived_resource> other{resource};
ASSERT_TRUE(handle);
ASSERT_TRUE(other);
ASSERT_NE(&*handle, &*other);
ASSERT_EQ(resource.use_count(), 2u);
ASSERT_EQ(other.operator->(), value.get());
ASSERT_EQ(&static_cast<derived &>(other), value.get());
ASSERT_EQ(&*other, value.get());
ASSERT_EQ(other.use_count(), 2l);
auto temp = std::move(handle);
handle = other;
entt::resource<derived> copy{resource};
entt::resource<derived> move{std::move(other)};
ASSERT_TRUE(handle);
ASSERT_FALSE(copy);
ASSERT_TRUE(move);
copy = std::move(move);
move = copy;
ASSERT_TRUE(copy);
ASSERT_TRUE(move);
ASSERT_EQ(copy, move);
}
TEST(Resource, DerivedToBase) {
entt::resource<derived> resource{std::make_shared<derived>()};
entt::resource<base> other{resource};
entt::resource<const base> cother{resource};
ASSERT_TRUE(resource);
ASSERT_TRUE(other);
ASSERT_TRUE(temp);
ASSERT_EQ(&*handle, &*other);
ASSERT_EQ(resource.use_count(), 3u);
ASSERT_TRUE(cother);
ASSERT_EQ(resource, other);
ASSERT_EQ(other, cother);
temp = std::move(other);
other = resource;
cother = resource;
ASSERT_TRUE(handle);
ASSERT_EQ(resource, other);
ASSERT_EQ(other, cother);
}
TEST(Resource, ConstNonConstAndAllInBetween) {
entt::resource<derived> resource{std::make_shared<derived>()};
entt::resource<derived> other{resource};
static_assert(std::is_same_v<decltype(*resource), derived &>);
static_assert(std::is_same_v<decltype(*entt::resource<const derived>{other}), const derived &>);
static_assert(std::is_same_v<decltype(*std::as_const(resource)), derived &>);
entt::resource<const derived> copy{resource};
entt::resource<const derived> move{std::move(other)};
ASSERT_TRUE(resource);
ASSERT_FALSE(other);
ASSERT_TRUE(temp);
ASSERT_EQ(&*handle, &*temp);
ASSERT_EQ(resource.use_count(), 3u);
temp = handle = {};
ASSERT_TRUE(copy);
ASSERT_EQ(copy, resource);
ASSERT_NE(copy, entt::resource<derived>{});
ASSERT_EQ(copy.use_count(), 3u);
ASSERT_FALSE(handle);
ASSERT_TRUE(move);
ASSERT_EQ(move, resource);
ASSERT_NE(move, entt::resource<derived>{});
ASSERT_EQ(move.use_count(), 3u);
copy = resource;
move = std::move(resource);
ASSERT_FALSE(resource);
ASSERT_FALSE(other);
ASSERT_FALSE(temp);
ASSERT_EQ(resource.use_count(), 1u);
ASSERT_TRUE(copy);
ASSERT_TRUE(move);
ASSERT_EQ(copy.use_count(), 2u);
}
TEST(Resource, DynamicResourceHandleCast) {
entt::resource_handle<derived_resource> handle = entt::resource_cache<derived_resource, loader<derived_resource>>{}.temp(42);
entt::resource_handle<const resource> base = handle;
entt::resource<derived> resource{std::make_shared<derived>()};
entt::resource<const base> other = resource;
ASSERT_TRUE(base);
ASSERT_EQ(handle.use_count(), 2u);
ASSERT_EQ(base->value, 42);
ASSERT_TRUE(other);
ASSERT_EQ(resource.use_count(), 2u);
ASSERT_EQ(resource, other);
entt::resource_handle<const derived_resource> chandle = dynamic_resource_handle_cast<const derived_resource>(base);
entt::resource<const derived> cast = dynamic_resource_cast<const derived>(other);
ASSERT_TRUE(chandle);
ASSERT_EQ(handle.use_count(), 3u);
ASSERT_EQ(chandle->value, 42);
ASSERT_TRUE(cast);
ASSERT_EQ(resource.use_count(), 3u);
ASSERT_EQ(resource, cast);
base = entt::resource_cache<resource, loader<resource>>{}.temp(42);
chandle = dynamic_resource_handle_cast<const derived_resource>(base);
other = entt::resource<base>{std::make_shared<base>()};
cast = dynamic_resource_cast<const derived>(other);
ASSERT_FALSE(chandle);
ASSERT_EQ(handle.use_count(), 1u);
}
TEST(Resource, Each) {
using namespace entt::literals;
entt::resource_cache<resource, loader<resource>> cache;
cache.load("resource"_hs, 0);
cache.each([](entt::resource_handle<resource> res) {
++res->value;
});
ASSERT_FALSE(cache.empty());
ASSERT_EQ(cache.handle("resource"_hs)->value, 1);
cache.each([](entt::id_type id, entt::resource_handle<resource> res) {
ASSERT_EQ(id, "resource"_hs);
++res->value;
});
ASSERT_FALSE(cache.empty());
std::as_const(cache).each([](entt::id_type id, entt::resource_handle<const resource> res) {
ASSERT_EQ(res->value, 2);
});
cache.each([&cache](entt::id_type id) {
cache.discard(id);
});
ASSERT_TRUE(cache.empty());
ASSERT_FALSE(cast);
ASSERT_EQ(resource.use_count(), 1u);
}

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@@ -0,0 +1,428 @@
#include <cstddef>
#include <memory>
#include <tuple>
#include <utility>
#include <gtest/gtest.h>
#include <entt/core/hashed_string.hpp>
#include <entt/resource/cache.hpp>
#include <entt/resource/loader.hpp>
#include "../common/throwing_allocator.hpp"
struct broken_tag {};
struct with_callback {};
template<typename Type>
struct loader {
using result_type = std::shared_ptr<Type>;
template<typename... Args>
result_type operator()(Args &&...args) const {
return std::make_shared<Type>(std::forward<Args>(args)...);
}
template<typename Func>
result_type operator()(with_callback, Func &&func) const {
return std::forward<Func>(func)();
}
template<typename... Args>
result_type operator()(broken_tag, Args &&...) const {
return {};
}
};
TEST(ResourceCache, Functionalities) {
using namespace entt::literals;
entt::resource_cache<int> cache;
ASSERT_NO_THROW([[maybe_unused]] auto alloc = cache.get_allocator());
ASSERT_TRUE(cache.empty());
ASSERT_EQ(cache.size(), 0u);
ASSERT_EQ(cache.begin(), cache.end());
ASSERT_EQ(std::as_const(cache).begin(), std::as_const(cache).end());
ASSERT_EQ(cache.cbegin(), cache.cend());
ASSERT_FALSE(cache.contains("resource"_hs));
cache.load("resource"_hs, 42);
ASSERT_FALSE(cache.empty());
ASSERT_EQ(cache.size(), 1u);
ASSERT_NE(cache.begin(), cache.end());
ASSERT_NE(std::as_const(cache).begin(), std::as_const(cache).end());
ASSERT_NE(cache.cbegin(), cache.cend());
ASSERT_TRUE(cache.contains("resource"_hs));
cache.clear();
ASSERT_TRUE(cache.empty());
ASSERT_EQ(cache.size(), 0u);
ASSERT_EQ(cache.begin(), cache.end());
ASSERT_EQ(std::as_const(cache).begin(), std::as_const(cache).end());
ASSERT_EQ(cache.cbegin(), cache.cend());
ASSERT_FALSE(cache.contains("resource"_hs));
}
TEST(ResourceCache, Constructors) {
using namespace entt::literals;
entt::resource_cache<int> cache;
cache = entt::resource_cache<int>{std::allocator<int>{}};
cache = entt::resource_cache<int>{entt::resource_loader<int>{}, std::allocator<float>{}};
cache.load("resource"_hs, 42u);
entt::resource_cache<int> temp{cache, cache.get_allocator()};
entt::resource_cache<int> other{std::move(temp), cache.get_allocator()};
ASSERT_EQ(cache.size(), 1u);
ASSERT_EQ(other.size(), 1u);
}
TEST(ResourceCache, Copy) {
using namespace entt::literals;
entt::resource_cache<std::size_t> cache;
cache.load("resource"_hs, 42u);
entt::resource_cache<std::size_t> other{cache};
ASSERT_TRUE(cache.contains("resource"_hs));
ASSERT_TRUE(other.contains("resource"_hs));
cache.load("foo"_hs, 99u);
cache.load("bar"_hs, 77u);
other.load("quux"_hs, 0u);
other = cache;
ASSERT_TRUE(other.contains("resource"_hs));
ASSERT_TRUE(other.contains("foo"_hs));
ASSERT_TRUE(other.contains("bar"_hs));
ASSERT_FALSE(other.contains("quux"_hs));
ASSERT_EQ(other["resource"_hs], 42u);
ASSERT_EQ(other["foo"_hs], 99u);
ASSERT_EQ(other["bar"_hs], 77u);
}
TEST(ResourceCache, Move) {
using namespace entt::literals;
entt::resource_cache<std::size_t> cache;
cache.load("resource"_hs, 42u);
entt::resource_cache<std::size_t> other{std::move(cache)};
ASSERT_EQ(cache.size(), 0u);
ASSERT_TRUE(other.contains("resource"_hs));
cache = other;
cache.load("foo"_hs, 99u);
cache.load("bar"_hs, 77u);
other.load("quux"_hs, 0u);
other = std::move(cache);
ASSERT_EQ(cache.size(), 0u);
ASSERT_TRUE(other.contains("resource"_hs));
ASSERT_TRUE(other.contains("foo"_hs));
ASSERT_TRUE(other.contains("bar"_hs));
ASSERT_FALSE(other.contains("quux"_hs));
ASSERT_EQ(other["resource"_hs], 42u);
ASSERT_EQ(other["foo"_hs], 99u);
ASSERT_EQ(other["bar"_hs], 77u);
}
TEST(ResourceCache, Iterator) {
using namespace entt::literals;
using iterator = typename entt::resource_cache<int>::iterator;
static_assert(std::is_same_v<iterator::value_type, std::pair<entt::id_type, entt::resource<int>>>);
static_assert(std::is_same_v<iterator::pointer, entt::input_iterator_pointer<std::pair<entt::id_type, entt::resource<int>>>>);
static_assert(std::is_same_v<iterator::reference, std::pair<entt::id_type, entt::resource<int>>>);
entt::resource_cache<int> cache;
cache.load("resource"_hs, 42);
iterator end{cache.begin()};
iterator begin{};
begin = cache.end();
std::swap(begin, end);
ASSERT_EQ(begin, cache.begin());
ASSERT_EQ(end, cache.end());
ASSERT_NE(begin, end);
ASSERT_EQ(begin++, cache.begin());
ASSERT_EQ(begin--, cache.end());
ASSERT_EQ(begin + 1, cache.end());
ASSERT_EQ(end - 1, cache.begin());
ASSERT_EQ(++begin, cache.end());
ASSERT_EQ(--begin, cache.begin());
ASSERT_EQ(begin += 1, cache.end());
ASSERT_EQ(begin -= 1, cache.begin());
ASSERT_EQ(begin + (end - begin), cache.end());
ASSERT_EQ(begin - (begin - end), cache.end());
ASSERT_EQ(end - (end - begin), cache.begin());
ASSERT_EQ(end + (begin - end), cache.begin());
ASSERT_EQ(begin[0u].first, cache.begin()->first);
ASSERT_EQ(begin[0u].second, (*cache.begin()).second);
ASSERT_LT(begin, end);
ASSERT_LE(begin, cache.begin());
ASSERT_GT(end, begin);
ASSERT_GE(end, cache.end());
cache.load("other"_hs, 3);
begin = cache.begin();
ASSERT_EQ(begin[0u].first, "resource"_hs);
ASSERT_EQ(begin[1u].second, 3);
}
TEST(ResourceCache, ConstIterator) {
using namespace entt::literals;
using iterator = typename entt::resource_cache<int>::const_iterator;
static_assert(std::is_same_v<iterator::value_type, std::pair<entt::id_type, entt::resource<const int>>>);
static_assert(std::is_same_v<iterator::pointer, entt::input_iterator_pointer<std::pair<entt::id_type, entt::resource<const int>>>>);
static_assert(std::is_same_v<iterator::reference, std::pair<entt::id_type, entt::resource<const int>>>);
entt::resource_cache<int> cache;
cache.load("resource"_hs, 42);
iterator cend{cache.cbegin()};
iterator cbegin{};
cbegin = cache.cend();
std::swap(cbegin, cend);
ASSERT_EQ(cbegin, cache.cbegin());
ASSERT_EQ(cend, cache.cend());
ASSERT_NE(cbegin, cend);
ASSERT_EQ(cbegin++, cache.cbegin());
ASSERT_EQ(cbegin--, cache.cend());
ASSERT_EQ(cbegin + 1, cache.cend());
ASSERT_EQ(cend - 1, cache.cbegin());
ASSERT_EQ(++cbegin, cache.cend());
ASSERT_EQ(--cbegin, cache.cbegin());
ASSERT_EQ(cbegin += 1, cache.cend());
ASSERT_EQ(cbegin -= 1, cache.cbegin());
ASSERT_EQ(cbegin + (cend - cbegin), cache.cend());
ASSERT_EQ(cbegin - (cbegin - cend), cache.cend());
ASSERT_EQ(cend - (cend - cbegin), cache.cbegin());
ASSERT_EQ(cend + (cbegin - cend), cache.cbegin());
ASSERT_EQ(cbegin[0u].first, cache.cbegin()->first);
ASSERT_EQ(cbegin[0u].second, (*cache.cbegin()).second);
ASSERT_LT(cbegin, cend);
ASSERT_LE(cbegin, cache.cbegin());
ASSERT_GT(cend, cbegin);
ASSERT_GE(cend, cache.cend());
cache.load("other"_hs, 3);
cbegin = cache.cbegin();
ASSERT_EQ(cbegin[0u].first, "resource"_hs);
ASSERT_EQ(cbegin[1u].second, 3);
}
TEST(ResourceCache, IteratorConversion) {
using namespace entt::literals;
entt::resource_cache<int> cache;
cache.load("resource"_hs, 42);
typename entt::resource_cache<int>::iterator it = cache.begin();
typename entt::resource_cache<int>::const_iterator cit = it;
static_assert(std::is_same_v<decltype(*it), std::pair<entt::id_type, entt::resource<int>>>);
static_assert(std::is_same_v<decltype(*cit), std::pair<entt::id_type, entt::resource<const int>>>);
ASSERT_EQ(it->first, "resource"_hs);
ASSERT_EQ((*it).second, 42);
ASSERT_EQ(it->first, cit->first);
ASSERT_EQ((*it).second, (*cit).second);
ASSERT_EQ(it - cit, 0);
ASSERT_EQ(cit - it, 0);
ASSERT_LE(it, cit);
ASSERT_LE(cit, it);
ASSERT_GE(it, cit);
ASSERT_GE(cit, it);
ASSERT_EQ(it, cit);
ASSERT_NE(++cit, it);
}
TEST(ResourceCache, Load) {
using namespace entt::literals;
entt::resource_cache<int> cache;
typename entt::resource_cache<int>::iterator it;
bool result;
ASSERT_TRUE(cache.empty());
ASSERT_EQ(cache.size(), 0u);
ASSERT_EQ(cache["resource"_hs], entt::resource<int>{});
ASSERT_EQ(std::as_const(cache)["resource"_hs], entt::resource<const int>{});
ASSERT_FALSE(cache.contains("resource"_hs));
std::tie(it, result) = cache.load("resource"_hs, 1);
ASSERT_TRUE(result);
ASSERT_EQ(cache.size(), 1u);
ASSERT_EQ(it, --cache.end());
ASSERT_TRUE(cache.contains("resource"_hs));
ASSERT_NE(cache["resource"_hs], entt::resource<int>{});
ASSERT_NE(std::as_const(cache)["resource"_hs], entt::resource<const int>{});
ASSERT_EQ(it->first, "resource"_hs);
ASSERT_EQ(it->second, 1);
std::tie(it, result) = cache.load("resource"_hs, 2);
ASSERT_FALSE(result);
ASSERT_EQ(cache.size(), 1u);
ASSERT_EQ(it, --cache.end());
ASSERT_EQ(it->second, 1);
std::tie(it, result) = cache.force_load("resource"_hs, 3);
ASSERT_TRUE(result);
ASSERT_EQ(cache.size(), 1u);
ASSERT_EQ(it, --cache.end());
ASSERT_EQ(it->second, 3);
}
TEST(ResourceCache, Erase) {
static constexpr std::size_t resource_count = 8u;
entt::resource_cache<std::size_t> cache;
for(std::size_t next{}, last = resource_count + 1u; next < last; ++next) {
cache.load(next, next);
}
ASSERT_EQ(cache.size(), resource_count + 1u);
for(std::size_t next{}, last = resource_count + 1u; next < last; ++next) {
ASSERT_TRUE(cache.contains(next));
}
auto it = cache.erase(++cache.begin());
it = cache.erase(it, it + 1);
ASSERT_EQ((--cache.end())->first, 6u);
ASSERT_EQ(cache.erase(6u), 1u);
ASSERT_EQ(cache.erase(6u), 0u);
ASSERT_EQ(cache.size(), resource_count + 1u - 3u);
ASSERT_EQ(it, ++cache.begin());
ASSERT_EQ(it->first, 7u);
ASSERT_EQ((--cache.end())->first, 5u);
for(std::size_t next{}, last = resource_count + 1u; next < last; ++next) {
if(next == 1u || next == 8u || next == 6u) {
ASSERT_FALSE(cache.contains(next));
} else {
ASSERT_TRUE(cache.contains(next));
}
}
cache.erase(cache.begin(), cache.end());
for(std::size_t next{}, last = resource_count + 1u; next < last; ++next) {
ASSERT_FALSE(cache.contains(next));
}
ASSERT_EQ(cache.size(), 0u);
}
TEST(ResourceCache, Indexing) {
using namespace entt::literals;
entt::resource_cache<int> cache;
ASSERT_FALSE(cache.contains("resource"_hs));
ASSERT_FALSE(cache["resource"_hs]);
ASSERT_FALSE(std::as_const(cache)["resource"_hs]);
cache.load("resource"_hs, 99);
ASSERT_TRUE(cache.contains("resource"_hs));
ASSERT_EQ(cache[std::move("resource"_hs)], 99);
ASSERT_EQ(std::as_const(cache)["resource"_hs], 99);
}
TEST(ResourceCache, LoaderDispatching) {
using namespace entt::literals;
entt::resource_cache<int, loader<int>> cache;
cache.force_load("resource"_hs, 99);
ASSERT_TRUE(cache.contains("resource"_hs));
ASSERT_EQ(cache["resource"_hs], 99);
cache.force_load("resource"_hs, with_callback{}, []() { return std::make_shared<int>(42); });
ASSERT_TRUE(cache.contains("resource"_hs));
ASSERT_EQ(cache["resource"_hs], 42);
}
TEST(ResourceCache, BrokenLoader) {
using namespace entt::literals;
entt::resource_cache<int, loader<int>> cache;
cache.load("resource"_hs, broken_tag{});
ASSERT_TRUE(cache.contains("resource"_hs));
ASSERT_FALSE(cache["resource"_hs]);
cache.force_load("resource"_hs, 42);
ASSERT_TRUE(cache.contains("resource"_hs));
ASSERT_TRUE(cache["resource"_hs]);
}
TEST(ResourceCache, ThrowingAllocator) {
using namespace entt::literals;
using allocator = test::throwing_allocator<std::size_t>;
using packed_allocator = test::throwing_allocator<entt::internal::dense_map_node<entt::id_type, std::shared_ptr<std::size_t>>>;
using packed_exception = typename packed_allocator::exception_type;
entt::resource_cache<std::size_t, entt::resource_loader<std::size_t>, allocator> cache{};
packed_allocator::trigger_on_allocate = true;
ASSERT_THROW(cache.load("resource"_hs), packed_exception);
ASSERT_FALSE(cache.contains("resource"_hs));
packed_allocator::trigger_on_allocate = true;
ASSERT_THROW(cache.force_load("resource"_hs), packed_exception);
ASSERT_FALSE(cache.contains("resource"_hs));
}

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@@ -0,0 +1,13 @@
#include <type_traits>
#include <gtest/gtest.h>
#include <entt/resource/loader.hpp>
TEST(ResourceLoader, Functionalities) {
using loader_type = entt::resource_loader<int>;
const auto resource = loader_type{}(42);
static_assert(std::is_same_v<typename loader_type::result_type, std::shared_ptr<int>>);
ASSERT_TRUE(resource);
ASSERT_EQ(*resource, 42);
}