Files
bitsery/tests/not_default_constructible.cpp
2019-01-16 11:27:56 +02:00

329 lines
11 KiB
C++

//MIT License
//
//Copyright (c) 2019 Mindaugas Vinkelis
//
//Permission is hereby granted, free of charge, to any person obtaining a copy
//of this software and associated documentation files (the "Software"), to deal
//in the Software without restriction, including without limitation the rights
//to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
//copies of the Software, and to permit persons to whom the Software is
//furnished to do so, subject to the following conditions:
//
//The above copyright notice and this permission notice shall be included in all
//copies or substantial portions of the Software.
//
//THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
//IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
//FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
//AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
//LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
//OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
//SOFTWARE.
#include <forward_list>
#include <bitsery/traits/forward_list.h>
#include <bitsery/ext/std_set.h>
#include <bitsery/ext/std_map.h>
#include <bitsery/ext/pointer.h>
#include <bitsery/ext/std_smart_ptr.h>
#include <gmock/gmock.h>
#include "serialization_test_utils.h"
using testing::ContainerEq;
using testing::Eq;
//forward declare, for testing with std::unordered_map
class HasherForNonDefaultConstructible;
class NonDefaultConstructible {
int32_t i{0};
friend class HasherForNonDefaultConstructible;
friend class bitsery::Access;
NonDefaultConstructible() = default;
template <typename S>
void serialize(S& s) {
s.value4b(i);
}
public:
explicit NonDefaultConstructible(int32_t v):i{v} {}
bool operator == (const NonDefaultConstructible& other) const {
return i == other.i;
}
bool operator < (const NonDefaultConstructible& other) const {
return i < other.i;
}
};
class HasherForNonDefaultConstructible {
public:
size_t operator()(const NonDefaultConstructible& o) const {
return std::hash<int32_t>()(o.i);
}
};
TEST(DeserializeNonDefaultConstructible, Container) {
SerializationContext ctx{};
std::vector<NonDefaultConstructible> data{};
data.emplace_back(1);
data.emplace_back(2);
data.emplace_back(3);
std::vector<NonDefaultConstructible> res{};
ctx.createSerializer().container(data, 10);
ctx.createDeserializer().container(res, 10);
EXPECT_THAT(res, ContainerEq(data));
}
//this test is here, because when object is not constructible we cannot simple "resize" container
TEST(DeserializeNonDefaultConstructible, ResultContainerShouldShrink) {
SerializationContext ctx{};
std::vector<NonDefaultConstructible> data{};
data.emplace_back(1);
std::vector<NonDefaultConstructible> res{};
res.emplace_back(2);
res.emplace_back(3);
ctx.createSerializer().container(data, 10);
ctx.createDeserializer().container(res, 10);
EXPECT_THAT(res, ContainerEq(data));
}
TEST(DeserializeNonDefaultConstructible, ResultStdForwardListShouldShrink) {
// forward list doesn't have .erase function, bet has erase_after
// in this case, if new size is 0 it must call clear, so we need to check two cases
{
// 1) when result should have more than 0 elements
SerializationContext ctx{};
std::forward_list<NonDefaultConstructible> data{};
data.push_front(NonDefaultConstructible{1});
std::forward_list<NonDefaultConstructible> res{};
res.push_front(NonDefaultConstructible{21});
res.push_front(NonDefaultConstructible{14});
ctx.createSerializer().container(data, 10);
ctx.createDeserializer().container(res, 10);
auto resIt = res.begin();
for (auto it = data.begin(); it != data.end(); ++it, ++resIt) {
EXPECT_THAT(*resIt, Eq(*it));
}
EXPECT_THAT(resIt, Eq(res.end()));
}
{
// 1) when result should have 0 elements
SerializationContext ctx{};
std::forward_list<NonDefaultConstructible> data{};
std::forward_list<NonDefaultConstructible> res{};
res.push_front(NonDefaultConstructible{1});
res.push_front(NonDefaultConstructible{14});
ctx.createSerializer().container(data, 10);
ctx.createDeserializer().container(res, 10);
EXPECT_THAT(res.begin(), Eq(res.end()));
}
}
TEST(DeserializeNonDefaultConstructible, StdSet) {
SerializationContext ctx{};
std::set<NonDefaultConstructible> data;
data.insert(NonDefaultConstructible{1});
data.insert(NonDefaultConstructible{2});
std::set<NonDefaultConstructible> res{};
data.insert(NonDefaultConstructible{3});
ctx.createSerializer().ext(data, bitsery::ext::StdSet{10});
ctx.createDeserializer().ext(res, bitsery::ext::StdSet{10});
EXPECT_THAT(res, ContainerEq(data));
}
TEST(DeserializeNonDefaultConstructible, StdMap) {
SerializationContext ctx{};
std::unordered_map<NonDefaultConstructible, NonDefaultConstructible, HasherForNonDefaultConstructible> data;
data.emplace(NonDefaultConstructible{2}, NonDefaultConstructible{3});
std::unordered_map<NonDefaultConstructible, NonDefaultConstructible, HasherForNonDefaultConstructible> res{};
data.emplace(NonDefaultConstructible{2}, NonDefaultConstructible{3});
data.emplace(NonDefaultConstructible{4}, NonDefaultConstructible{4});
auto& ser = ctx.createSerializer();
ser.ext(data, bitsery::ext::StdMap{10},[&ser](NonDefaultConstructible& key, NonDefaultConstructible& value) {
ser.object(key);
ser.object(value);
});
auto& des = ctx.createDeserializer();
des.ext(res, bitsery::ext::StdMap{10},[&des](NonDefaultConstructible& key, NonDefaultConstructible& value) {
des.object(key);
des.object(value);
});
EXPECT_THAT(res, ContainerEq(data));
}
struct NonPolymorphicPointers {
NonDefaultConstructible* pp;
std::unique_ptr<NonDefaultConstructible> up;
std::shared_ptr<NonDefaultConstructible> sp;
std::weak_ptr<NonDefaultConstructible> wp;
};
template <typename S>
void serialize(S& s, NonPolymorphicPointers& o) {
s.ext(o.pp, bitsery::ext::PointerOwner{});
s.ext(o.up, bitsery::ext::StdSmartPtr{});
s.ext(o.sp, bitsery::ext::StdSmartPtr{});
s.ext(o.wp, bitsery::ext::StdSmartPtr{});
}
TEST(DeserializeNonDefaultConstructible, NonPolymorphicPointerAndSmartPointer) {
using SerContext = BasicSerializationContext<bitsery::DefaultConfig, bitsery::ext::PointerLinkingContext>;
SerContext ctx{};
NonPolymorphicPointers data{};
data.pp = new NonDefaultConstructible{3};
data.up = std::unique_ptr<NonDefaultConstructible>(new NonDefaultConstructible{54});
data.sp = std::shared_ptr<NonDefaultConstructible>(new NonDefaultConstructible{-481});
data.wp = data.sp;
NonPolymorphicPointers res{};
bitsery::ext::PointerLinkingContext plctx1{};
ctx.createSerializer(&plctx1).object(data);
ctx.createDeserializer(&plctx1).object(res);
EXPECT_THAT(*res.pp, Eq(*data.pp));
delete res.pp;
delete data.pp;
EXPECT_THAT(*res.up, Eq(*data.up));
EXPECT_THAT(*res.sp, Eq(*data.sp));
EXPECT_THAT(*(res.wp.lock()), Eq(*(data.wp.lock())));
}
class PolymorphicNDCBase {
public:
virtual ~PolymorphicNDCBase() = 0;
template <typename S>
void serialize(S& ) {}
};
PolymorphicNDCBase::~PolymorphicNDCBase() = default;
class PolymorphicNDC1:public PolymorphicNDCBase {
int8_t i{};
friend class bitsery::Access;
template <typename S>
void serialize(S& s) {
s.value1b(i);
}
public:
PolymorphicNDC1() = default;
PolymorphicNDC1(int8_t v):i{v} {}
bool operator == (const PolymorphicNDC1& other) const {
return i == other.i;
}
};
class PolymorphicNDC2:public PolymorphicNDCBase {
uint16_t ui{};
friend class bitsery::Access;
template <typename S>
void serialize(S& s) {
s.value2b(ui);
}
public:
PolymorphicNDC2() = default;
PolymorphicNDC2(uint16_t v):ui{v} {}
bool operator == (const PolymorphicNDC2& other) const {
return ui == other.ui;
}
};
namespace bitsery {
namespace ext {
template<>
struct PolymorphicBaseClass<PolymorphicNDCBase> : PolymorphicDerivedClasses<PolymorphicNDC1, PolymorphicNDC2> {
};
}
}
struct PolymorphicPointers {
PolymorphicNDCBase* pp;
std::unique_ptr<PolymorphicNDCBase> up;
std::shared_ptr<PolymorphicNDCBase> sp;
std::weak_ptr<PolymorphicNDCBase> wp;
};
template <typename S>
void serialize(S& s, PolymorphicPointers& o) {
s.ext(o.pp, bitsery::ext::PointerOwner{});
s.ext(o.up, bitsery::ext::StdSmartPtr{});
s.ext(o.sp, bitsery::ext::StdSmartPtr{});
s.ext(o.wp, bitsery::ext::StdSmartPtr{});
}
TEST(DeserializeNonDefaultConstructible, PolymorphicPointerAndSmartPointer) {
using TContext = std::tuple<bitsery::ext::PointerLinkingContext, bitsery::ext::PolymorphicContext<bitsery::ext::StandardRTTI>>;
using SerContext = BasicSerializationContext<bitsery::DefaultConfig, TContext>;
SerContext ctx{};
PolymorphicPointers data{};
data.pp = new PolymorphicNDC1{-4};
data.up = std::unique_ptr<PolymorphicNDCBase>(new PolymorphicNDC2{54});
data.sp = std::shared_ptr<PolymorphicNDCBase>(new PolymorphicNDC1{15});
data.wp = data.sp;
PolymorphicPointers res{};
TContext serCtx{};
std::get<1>(serCtx).registerBasesList<typename SerContext::TSerializer>(bitsery::ext::PolymorphicClassesList<PolymorphicNDCBase>{});
TContext desCtx{};
std::get<1>(desCtx).registerBasesList<typename SerContext::TDeserializer>(bitsery::ext::PolymorphicClassesList<PolymorphicNDCBase>{});
ctx.createSerializer(&serCtx).object(data);
ctx.createDeserializer(&desCtx).object(res);
auto respp = dynamic_cast<PolymorphicNDC1*>(res.pp);
auto resup = dynamic_cast<PolymorphicNDC2*>(res.up.get());
auto ressp = dynamic_cast<PolymorphicNDC1*>(res.sp.get());
auto reswp = dynamic_cast<PolymorphicNDC1*>(res.wp.lock().get());
auto datapp = dynamic_cast<PolymorphicNDC1*>(data.pp);
auto dataup = dynamic_cast<PolymorphicNDC2*>(data.up.get());
auto datasp = dynamic_cast<PolymorphicNDC1*>(data.sp.get());
auto datawp = dynamic_cast<PolymorphicNDC1*>(data.wp.lock().get());
EXPECT_THAT(respp, ::testing::Ne(nullptr));
EXPECT_THAT(resup, ::testing::Ne(nullptr));
EXPECT_THAT(ressp, ::testing::Ne(nullptr));
EXPECT_THAT(reswp, ::testing::Ne(nullptr));
EXPECT_THAT(*respp, Eq(*datapp));
delete res.pp;
delete data.pp;
EXPECT_THAT(*resup, Eq(*dataup));
EXPECT_THAT(*ressp, Eq(*datasp));
EXPECT_THAT(*reswp, Eq(*datawp));
}