test(network): add MessageSerializerTest for serialization and deserialization coverage

- Added comprehensive unit tests for `MessageSerializer` in `MessageSerializerTest.cpp`.
- Included `MessageSerializerTest.cpp` in `test/CMakeLists.txt`.
This commit is contained in:
Kieran Kihn
2025-11-21 22:53:35 +08:00
parent 6ea7ad71c2
commit 6757f559ea
2 changed files with 924 additions and 0 deletions

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@@ -10,6 +10,7 @@ add_executable(uno-game-test
unit/game/CardTileTest.cpp
unit/game/PlayerTest.cpp
unit/game/GameStateTest.cpp
unit/network/MessageSerializerTest.cpp
)
target_link_libraries(uno-game-test

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@@ -0,0 +1,923 @@
/**
* @file MessageSerializerTest.cpp
*
* @author Yuzhe Guo
* @date 2025.11.21
*/
#include "../../../src/network/MessageSerializer.h"
#include <gtest/gtest.h>
#include <nlohmann/json.hpp>
using namespace UNO::NETWORK;
using namespace UNO::GAME;
// ========== Serialize Tests ==========
TEST(MessageSerializerTest, SerializeJoinGameMessage)
{
JoinGamePayload payload{"Player1"};
Message message(MessagePayloadType::JOIN_GAME, payload);
std::string result = MessageSerializer::serialize(message);
nlohmann::json json = nlohmann::json::parse(result);
EXPECT_EQ(json["payload_type"], "JOIN_GAME");
EXPECT_EQ(json["payload"]["name"], "Player1");
}
TEST(MessageSerializerTest, SerializeJoinGameMessageWithEmptyName)
{
JoinGamePayload payload{""};
Message message(MessagePayloadType::JOIN_GAME, payload);
std::string result = MessageSerializer::serialize(message);
nlohmann::json json = nlohmann::json::parse(result);
EXPECT_EQ(json["payload_type"], "JOIN_GAME");
EXPECT_EQ(json["payload"]["name"], "");
}
TEST(MessageSerializerTest, SerializeJoinGameMessageWithSpecialCharacters)
{
JoinGamePayload payload{"Player<>\"&\n\t"};
Message message(MessagePayloadType::JOIN_GAME, payload);
std::string result = MessageSerializer::serialize(message);
nlohmann::json json = nlohmann::json::parse(result);
EXPECT_EQ(json["payload_type"], "JOIN_GAME");
EXPECT_EQ(json["payload"]["name"], "Player<>\"&\n\t");
}
TEST(MessageSerializerTest, SerializeStartGameMessage)
{
StartGamePayload payload{};
Message message(MessagePayloadType::START_GAME, payload);
std::string result = MessageSerializer::serialize(message);
nlohmann::json json = nlohmann::json::parse(result);
EXPECT_EQ(json["payload_type"], "START_GAME");
EXPECT_TRUE(json["payload"].is_null());
}
TEST(MessageSerializerTest, SerializeDrawCardMessage)
{
DrawCardPayload payload{5};
Message message(MessagePayloadType::DRAW_CARD, payload);
std::string result = MessageSerializer::serialize(message);
nlohmann::json json = nlohmann::json::parse(result);
EXPECT_EQ(json["payload_type"], "DRAW_CARD");
EXPECT_EQ(json["payload"]["draw_count"], 5);
}
TEST(MessageSerializerTest, SerializeDrawCardMessageWithZero)
{
DrawCardPayload payload{0};
Message message(MessagePayloadType::DRAW_CARD, payload);
std::string result = MessageSerializer::serialize(message);
nlohmann::json json = nlohmann::json::parse(result);
EXPECT_EQ(json["payload_type"], "DRAW_CARD");
EXPECT_EQ(json["payload"]["draw_count"], 0);
}
TEST(MessageSerializerTest, SerializePlayCardMessage)
{
Card card(CardColor::RED, CardType::NUM5);
PlayCardPayload payload{card};
Message message(MessagePayloadType::PLAY_CARD, payload);
std::string result = MessageSerializer::serialize(message);
nlohmann::json json = nlohmann::json::parse(result);
EXPECT_EQ(json["payload_type"], "PLAY_CARD");
EXPECT_EQ(json["payload"]["card"]["card_color"], "Red");
EXPECT_EQ(json["payload"]["card"]["card_type"], "5");
}
TEST(MessageSerializerTest, SerializePlayCardMessageAllColors)
{
std::vector<std::pair<CardColor, std::string>> colors = {
{CardColor::RED, "Red"}, {CardColor::BLUE, "Blue"}, {CardColor::GREEN, "Green"}, {CardColor::YELLOW, "Yellow"}};
for (const auto &[color, expected] : colors) {
Card card(color, CardType::NUM1);
PlayCardPayload payload{card};
Message message(MessagePayloadType::PLAY_CARD, payload);
std::string result = MessageSerializer::serialize(message);
nlohmann::json json = nlohmann::json::parse(result);
EXPECT_EQ(json["payload"]["card"]["card_color"], expected);
}
}
TEST(MessageSerializerTest, SerializePlayCardMessageAllTypes)
{
std::vector<std::pair<CardType, std::string>> types = {{CardType::NUM0, "0"},
{CardType::NUM1, "1"},
{CardType::NUM2, "2"},
{CardType::NUM3, "3"},
{CardType::NUM4, "4"},
{CardType::NUM5, "5"},
{CardType::NUM6, "6"},
{CardType::NUM7, "7"},
{CardType::NUM8, "8"},
{CardType::NUM9, "9"},
{CardType::SKIP, "Skip"},
{CardType::REVERSE, "Reverse"},
{CardType::DRAW2, "Draw 2"},
{CardType::WILD, "Wild"},
{CardType::WILDDRAWFOUR, "Wild Draw 4"}};
for (const auto &[type, expected] : types) {
Card card(CardColor::RED, type);
PlayCardPayload payload{card};
Message message(MessagePayloadType::PLAY_CARD, payload);
std::string result = MessageSerializer::serialize(message);
nlohmann::json json = nlohmann::json::parse(result);
EXPECT_EQ(json["payload"]["card"]["card_type"], expected);
}
}
TEST(MessageSerializerTest, SerializeInitGameMessage)
{
DiscardPile discardPile;
discardPile.add(Card(CardColor::RED, CardType::NUM5));
discardPile.add(Card(CardColor::BLUE, CardType::SKIP));
HandCard handCard;
handCard.draw(Card(CardColor::GREEN, CardType::NUM3));
handCard.draw(Card(CardColor::YELLOW, CardType::REVERSE));
InitGamePayload payload{discardPile, handCard, 2};
Message message(MessagePayloadType::INIT_GAME, payload);
std::string result = MessageSerializer::serialize(message);
nlohmann::json json = nlohmann::json::parse(result);
EXPECT_EQ(json["payload_type"], "INIT_GAME");
EXPECT_EQ(json["payload"]["current_player"], 2);
EXPECT_TRUE(json["payload"]["discard_pile"].is_array());
EXPECT_TRUE(json["payload"]["hand_card"].is_array());
EXPECT_EQ(json["payload"]["discard_pile"].size(), 2);
EXPECT_EQ(json["payload"]["hand_card"].size(), 2);
}
TEST(MessageSerializerTest, SerializeInitGameMessageWithEmptyPiles)
{
DiscardPile discardPile;
HandCard handCard;
InitGamePayload payload{discardPile, handCard, 0};
Message message(MessagePayloadType::INIT_GAME, payload);
std::string result = MessageSerializer::serialize(message);
nlohmann::json json = nlohmann::json::parse(result);
EXPECT_EQ(json["payload_type"], "INIT_GAME");
EXPECT_EQ(json["payload"]["current_player"], 0);
EXPECT_TRUE(json["payload"]["discard_pile"].is_array());
EXPECT_TRUE(json["payload"]["hand_card"].is_array());
EXPECT_EQ(json["payload"]["discard_pile"].size(), 0);
EXPECT_EQ(json["payload"]["hand_card"].size(), 0);
}
TEST(MessageSerializerTest, SerializeEndGameMessage)
{
EndGamePayload payload{};
Message message(MessagePayloadType::END_GAME, payload);
std::string result = MessageSerializer::serialize(message);
nlohmann::json json = nlohmann::json::parse(result);
EXPECT_EQ(json["payload_type"], "END_GAME");
EXPECT_TRUE(json["payload"].is_null());
}
// ========== Deserialize Tests ==========
TEST(MessageSerializerTest, DeserializeJoinGameMessage)
{
std::string json = R"({"payload_type":"JOIN_GAME","payload":{"name":"Player1"}})";
Message message = MessageSerializer::deserialize(json);
EXPECT_EQ(message.getMessagePayloadType(), MessagePayloadType::JOIN_GAME);
auto payload = std::get<JoinGamePayload>(message.getMessagePayload());
EXPECT_EQ(payload.playerName, "Player1");
}
TEST(MessageSerializerTest, DeserializeJoinGameMessageWithEmptyName)
{
std::string json = R"({"payload_type":"JOIN_GAME","payload":{"name":""}})";
Message message = MessageSerializer::deserialize(json);
EXPECT_EQ(message.getMessagePayloadType(), MessagePayloadType::JOIN_GAME);
auto payload = std::get<JoinGamePayload>(message.getMessagePayload());
EXPECT_EQ(payload.playerName, "");
}
TEST(MessageSerializerTest, DeserializeStartGameMessage)
{
std::string json = R"({"payload_type":"START_GAME","payload":null})";
Message message = MessageSerializer::deserialize(json);
EXPECT_EQ(message.getMessagePayloadType(), MessagePayloadType::START_GAME);
}
TEST(MessageSerializerTest, DeserializeDrawCardMessage)
{
std::string json = R"({"payload_type":"DRAW_CARD","payload":{"draw_count":5}})";
Message message = MessageSerializer::deserialize(json);
EXPECT_EQ(message.getMessagePayloadType(), MessagePayloadType::DRAW_CARD);
auto payload = std::get<DrawCardPayload>(message.getMessagePayload());
EXPECT_EQ(payload.drawCount, 5);
}
TEST(MessageSerializerTest, DeserializePlayCardMessage)
{
std::string json = R"({"payload_type":"PLAY_CARD","payload":{"card":{"card_color":"Red","card_type":"5"}}})";
Message message = MessageSerializer::deserialize(json);
EXPECT_EQ(message.getMessagePayloadType(), MessagePayloadType::PLAY_CARD);
auto payload = std::get<PlayCardPayload>(message.getMessagePayload());
EXPECT_EQ(payload.card.getColor(), CardColor::RED);
EXPECT_EQ(payload.card.getType(), CardType::NUM5);
}
TEST(MessageSerializerTest, DeserializeInitGameMessage)
{
std::string json = R"({
"payload_type":"INIT_GAME",
"payload":{
"discard_pile":[{"card_color":"Red","card_type":"5"}],
"hand_card":[{"card_color":"Blue","card_type":"Skip"}],
"current_player":2
}
})";
Message message = MessageSerializer::deserialize(json);
EXPECT_EQ(message.getMessagePayloadType(), MessagePayloadType::INIT_GAME);
auto payload = std::get<InitGamePayload>(message.getMessagePayload());
EXPECT_EQ(payload.currentPlayerIndex, 2);
}
TEST(MessageSerializerTest, DeserializeEndGameMessage)
{
std::string json = R"({"payload_type":"END_GAME","payload":null})";
Message message = MessageSerializer::deserialize(json);
EXPECT_EQ(message.getMessagePayloadType(), MessagePayloadType::END_GAME);
}
// ========== Round-trip Tests ==========
TEST(MessageSerializerTest, RoundTripJoinGameMessage)
{
JoinGamePayload payload{"Player1"};
Message original(MessagePayloadType::JOIN_GAME, payload);
std::string serialized = MessageSerializer::serialize(original);
Message deserialized = MessageSerializer::deserialize(serialized);
EXPECT_EQ(deserialized.getMessagePayloadType(), MessagePayloadType::JOIN_GAME);
auto deserializedPayload = std::get<JoinGamePayload>(deserialized.getMessagePayload());
EXPECT_EQ(deserializedPayload.playerName, "Player1");
}
TEST(MessageSerializerTest, RoundTripAllMessageTypes)
{
std::vector<Message> messages;
messages.emplace_back(MessagePayloadType::JOIN_GAME, JoinGamePayload{"TestPlayer"});
messages.emplace_back(MessagePayloadType::START_GAME, StartGamePayload{});
messages.emplace_back(MessagePayloadType::DRAW_CARD, DrawCardPayload{3});
messages.emplace_back(MessagePayloadType::PLAY_CARD, PlayCardPayload{Card(CardColor::RED, CardType::NUM5)});
messages.emplace_back(MessagePayloadType::END_GAME, EndGamePayload{});
for (const auto &original : messages) {
std::string serialized = MessageSerializer::serialize(original);
Message deserialized = MessageSerializer::deserialize(serialized);
EXPECT_EQ(deserialized.getMessagePayloadType(), original.getMessagePayloadType());
}
}
// ========== Invalid Input Tests ==========
TEST(MessageSerializerTest, DeserializeInvalidJSON)
{
std::string json = "invalid json";
EXPECT_THROW(MessageSerializer::deserialize(json), std::invalid_argument);
}
TEST(MessageSerializerTest, DeserializeNonObjectJSON)
{
std::string json = R"([1,2,3])";
EXPECT_THROW(MessageSerializer::deserialize(json), std::invalid_argument);
}
TEST(MessageSerializerTest, DeserializeNullJSON)
{
std::string json = "null";
EXPECT_THROW(MessageSerializer::deserialize(json), std::invalid_argument);
}
TEST(MessageSerializerTest, DeserializeStringJSON)
{
std::string json = R"("string")";
EXPECT_THROW(MessageSerializer::deserialize(json), std::invalid_argument);
}
TEST(MessageSerializerTest, DeserializeNumberJSON)
{
std::string json = "123";
EXPECT_THROW(MessageSerializer::deserialize(json), std::invalid_argument);
}
TEST(MessageSerializerTest, DeserializeBooleanJSON)
{
std::string json = "true";
EXPECT_THROW(MessageSerializer::deserialize(json), std::invalid_argument);
}
TEST(MessageSerializerTest, DeserializeMissingPayloadType)
{
std::string json = R"({"payload":null})";
EXPECT_THROW(MessageSerializer::deserialize(json), std::invalid_argument);
}
TEST(MessageSerializerTest, DeserializeMissingPayload)
{
std::string json = R"({"payload_type":"START_GAME"})";
EXPECT_THROW(MessageSerializer::deserialize(json), std::invalid_argument);
}
TEST(MessageSerializerTest, DeserializeInvalidPayloadType)
{
std::string json = R"({"payload_type":"INVALID_TYPE","payload":null})";
EXPECT_THROW(MessageSerializer::deserialize(json), std::invalid_argument);
}
TEST(MessageSerializerTest, DeserializePayloadTypeAsNumber)
{
std::string json = R"({"payload_type":123,"payload":null})";
EXPECT_THROW(MessageSerializer::deserialize(json), std::invalid_argument);
}
TEST(MessageSerializerTest, DeserializePayloadTypeAsNull)
{
std::string json = R"({"payload_type":null,"payload":null})";
EXPECT_THROW(MessageSerializer::deserialize(json), std::invalid_argument);
}
TEST(MessageSerializerTest, DeserializePayloadTypeAsArray)
{
std::string json = R"({"payload_type":[],"payload":null})";
EXPECT_THROW(MessageSerializer::deserialize(json), std::invalid_argument);
}
TEST(MessageSerializerTest, DeserializePayloadTypeAsObject)
{
std::string json = R"({"payload_type":{},"payload":null})";
EXPECT_THROW(MessageSerializer::deserialize(json), std::invalid_argument);
}
// ========== JoinGamePayload Invalid Tests ==========
TEST(MessageSerializerTest, DeserializeJoinGameWithNullPayload)
{
std::string json = R"({"payload_type":"JOIN_GAME","payload":null})";
EXPECT_THROW(MessageSerializer::deserialize(json), std::invalid_argument);
}
TEST(MessageSerializerTest, DeserializeJoinGameWithArrayPayload)
{
std::string json = R"({"payload_type":"JOIN_GAME","payload":[]})";
EXPECT_THROW(MessageSerializer::deserialize(json), std::invalid_argument);
}
TEST(MessageSerializerTest, DeserializeJoinGameWithNumberPayload)
{
std::string json = R"({"payload_type":"JOIN_GAME","payload":123})";
EXPECT_THROW(MessageSerializer::deserialize(json), std::invalid_argument);
}
TEST(MessageSerializerTest, DeserializeJoinGameWithMissingName)
{
std::string json = R"({"payload_type":"JOIN_GAME","payload":{}})";
EXPECT_THROW(MessageSerializer::deserialize(json), std::invalid_argument);
}
TEST(MessageSerializerTest, DeserializeJoinGameWithNumberName)
{
std::string json = R"({"payload_type":"JOIN_GAME","payload":{"name":123}})";
EXPECT_THROW(MessageSerializer::deserialize(json), std::invalid_argument);
}
TEST(MessageSerializerTest, DeserializeJoinGameWithNullName)
{
std::string json = R"({"payload_type":"JOIN_GAME","payload":{"name":null}})";
EXPECT_THROW(MessageSerializer::deserialize(json), std::invalid_argument);
}
TEST(MessageSerializerTest, DeserializeJoinGameWithArrayName)
{
std::string json = R"({"payload_type":"JOIN_GAME","payload":{"name":[]}})";
EXPECT_THROW(MessageSerializer::deserialize(json), std::invalid_argument);
}
TEST(MessageSerializerTest, DeserializeJoinGameWithObjectName)
{
std::string json = R"({"payload_type":"JOIN_GAME","payload":{"name":{}}})";
EXPECT_THROW(MessageSerializer::deserialize(json), std::invalid_argument);
}
// ========== StartGamePayload Invalid Tests ==========
TEST(MessageSerializerTest, DeserializeStartGameWithNonNullPayload)
{
std::string json = R"({"payload_type":"START_GAME","payload":{}})";
EXPECT_THROW(MessageSerializer::deserialize(json), std::invalid_argument);
}
TEST(MessageSerializerTest, DeserializeStartGameWithArrayPayload)
{
std::string json = R"({"payload_type":"START_GAME","payload":[]})";
EXPECT_THROW(MessageSerializer::deserialize(json), std::invalid_argument);
}
TEST(MessageSerializerTest, DeserializeStartGameWithStringPayload)
{
std::string json = R"({"payload_type":"START_GAME","payload":"test"})";
EXPECT_THROW(MessageSerializer::deserialize(json), std::invalid_argument);
}
// ========== DrawCardPayload Invalid Tests ==========
TEST(MessageSerializerTest, DeserializeDrawCardWithNullPayload)
{
std::string json = R"({"payload_type":"DRAW_CARD","payload":null})";
EXPECT_THROW(MessageSerializer::deserialize(json), std::invalid_argument);
}
TEST(MessageSerializerTest, DeserializeDrawCardWithArrayPayload)
{
std::string json = R"({"payload_type":"DRAW_CARD","payload":[]})";
EXPECT_THROW(MessageSerializer::deserialize(json), std::invalid_argument);
}
TEST(MessageSerializerTest, DeserializeDrawCardWithMissingDrawCount)
{
std::string json = R"({"payload_type":"DRAW_CARD","payload":{}})";
EXPECT_THROW(MessageSerializer::deserialize(json), std::invalid_argument);
}
TEST(MessageSerializerTest, DeserializeDrawCardWithStringDrawCount)
{
std::string json = R"({"payload_type":"DRAW_CARD","payload":{"draw_count":"5"}})";
EXPECT_THROW(MessageSerializer::deserialize(json), std::invalid_argument);
}
TEST(MessageSerializerTest, DeserializeDrawCardWithNullDrawCount)
{
std::string json = R"({"payload_type":"DRAW_CARD","payload":{"draw_count":null}})";
EXPECT_THROW(MessageSerializer::deserialize(json), std::invalid_argument);
}
TEST(MessageSerializerTest, DeserializeDrawCardWithNegativeDrawCount)
{
std::string json = R"({"payload_type":"DRAW_CARD","payload":{"draw_count":-5}})";
EXPECT_THROW(MessageSerializer::deserialize(json), std::invalid_argument);
}
TEST(MessageSerializerTest, DeserializeDrawCardWithFloatDrawCount)
{
std::string json = R"({"payload_type":"DRAW_CARD","payload":{"draw_count":5.5}})";
EXPECT_THROW(MessageSerializer::deserialize(json), std::invalid_argument);
}
// ========== PlayCardPayload Invalid Tests ==========
TEST(MessageSerializerTest, DeserializePlayCardWithNullPayload)
{
std::string json = R"({"payload_type":"PLAY_CARD","payload":null})";
EXPECT_THROW(MessageSerializer::deserialize(json), std::invalid_argument);
}
TEST(MessageSerializerTest, DeserializePlayCardWithArrayPayload)
{
std::string json = R"({"payload_type":"PLAY_CARD","payload":[]})";
EXPECT_THROW(MessageSerializer::deserialize(json), std::invalid_argument);
}
TEST(MessageSerializerTest, DeserializePlayCardWithMissingCard)
{
std::string json = R"({"payload_type":"PLAY_CARD","payload":{}})";
EXPECT_THROW(MessageSerializer::deserialize(json), std::invalid_argument);
}
TEST(MessageSerializerTest, DeserializePlayCardWithNullCard)
{
std::string json = R"({"payload_type":"PLAY_CARD","payload":{"card":null}})";
EXPECT_THROW(MessageSerializer::deserialize(json), std::invalid_argument);
}
TEST(MessageSerializerTest, DeserializePlayCardWithArrayCard)
{
std::string json = R"({"payload_type":"PLAY_CARD","payload":{"card":[]}})";
EXPECT_THROW(MessageSerializer::deserialize(json), std::invalid_argument);
}
TEST(MessageSerializerTest, DeserializePlayCardWithStringCard)
{
std::string json = R"({"payload_type":"PLAY_CARD","payload":{"card":"Red 5"}})";
EXPECT_THROW(MessageSerializer::deserialize(json), std::invalid_argument);
}
TEST(MessageSerializerTest, DeserializePlayCardWithMissingCardColor)
{
std::string json = R"({"payload_type":"PLAY_CARD","payload":{"card":{"card_type":"5"}}})";
EXPECT_THROW(MessageSerializer::deserialize(json), std::invalid_argument);
}
TEST(MessageSerializerTest, DeserializePlayCardWithMissingCardType)
{
std::string json = R"({"payload_type":"PLAY_CARD","payload":{"card":{"card_color":"Red"}}})";
EXPECT_THROW(MessageSerializer::deserialize(json), std::invalid_argument);
}
TEST(MessageSerializerTest, DeserializePlayCardWithInvalidCardColor)
{
std::string json = R"({"payload_type":"PLAY_CARD","payload":{"card":{"card_color":"Purple","card_type":"5"}}})";
EXPECT_THROW(MessageSerializer::deserialize(json), std::invalid_argument);
}
TEST(MessageSerializerTest, DeserializePlayCardWithInvalidCardType)
{
std::string json = R"({"payload_type":"PLAY_CARD","payload":{"card":{"card_color":"Red","card_type":"Invalid"}}})";
EXPECT_THROW(MessageSerializer::deserialize(json), std::invalid_argument);
}
TEST(MessageSerializerTest, DeserializePlayCardWithNumberCardColor)
{
std::string json = R"({"payload_type":"PLAY_CARD","payload":{"card":{"card_color":123,"card_type":"5"}}})";
EXPECT_THROW(MessageSerializer::deserialize(json), std::invalid_argument);
}
TEST(MessageSerializerTest, DeserializePlayCardWithNumberCardType)
{
std::string json = R"({"payload_type":"PLAY_CARD","payload":{"card":{"card_color":"Red","card_type":5}}})";
EXPECT_THROW(MessageSerializer::deserialize(json), std::invalid_argument);
}
TEST(MessageSerializerTest, DeserializePlayCardWithNullCardColor)
{
std::string json = R"({"payload_type":"PLAY_CARD","payload":{"card":{"card_color":null,"card_type":"5"}}})";
EXPECT_THROW(MessageSerializer::deserialize(json), std::invalid_argument);
}
TEST(MessageSerializerTest, DeserializePlayCardWithNullCardType)
{
std::string json = R"({"payload_type":"PLAY_CARD","payload":{"card":{"card_color":"Red","card_type":null}}})";
EXPECT_THROW(MessageSerializer::deserialize(json), std::invalid_argument);
}
TEST(MessageSerializerTest, DeserializePlayCardWithEmptyCardColor)
{
std::string json = R"({"payload_type":"PLAY_CARD","payload":{"card":{"card_color":"","card_type":"5"}}})";
EXPECT_THROW(MessageSerializer::deserialize(json), std::invalid_argument);
}
TEST(MessageSerializerTest, DeserializePlayCardWithEmptyCardType)
{
std::string json = R"({"payload_type":"PLAY_CARD","payload":{"card":{"card_color":"Red","card_type":""}}})";
EXPECT_THROW(MessageSerializer::deserialize(json), std::invalid_argument);
}
TEST(MessageSerializerTest, DeserializePlayCardWithCaseSensitiveColor)
{
std::string json = R"({"payload_type":"PLAY_CARD","payload":{"card":{"card_color":"red","card_type":"5"}}})";
EXPECT_THROW(MessageSerializer::deserialize(json), std::invalid_argument);
}
TEST(MessageSerializerTest, DeserializePlayCardWithCaseSensitiveType)
{
std::string json = R"({"payload_type":"PLAY_CARD","payload":{"card":{"card_color":"Red","card_type":"skip"}}})";
EXPECT_THROW(MessageSerializer::deserialize(json), std::invalid_argument);
}
// ========== InitGamePayload Invalid Tests ==========
TEST(MessageSerializerTest, DeserializeInitGameWithNullPayload)
{
std::string json = R"({"payload_type":"INIT_GAME","payload":null})";
EXPECT_THROW(MessageSerializer::deserialize(json), std::invalid_argument);
}
TEST(MessageSerializerTest, DeserializeInitGameWithArrayPayload)
{
std::string json = R"({"payload_type":"INIT_GAME","payload":[]})";
EXPECT_THROW(MessageSerializer::deserialize(json), std::invalid_argument);
}
TEST(MessageSerializerTest, DeserializeInitGameWithMissingDiscardPile)
{
std::string json = R"({"payload_type":"INIT_GAME","payload":{"hand_card":[],"current_player":0}})";
EXPECT_THROW(MessageSerializer::deserialize(json), std::invalid_argument);
}
TEST(MessageSerializerTest, DeserializeInitGameWithMissingHandCard)
{
std::string json = R"({"payload_type":"INIT_GAME","payload":{"discard_pile":[],"current_player":0}})";
EXPECT_THROW(MessageSerializer::deserialize(json), std::invalid_argument);
}
TEST(MessageSerializerTest, DeserializeInitGameWithMissingCurrentPlayer)
{
std::string json = R"({"payload_type":"INIT_GAME","payload":{"discard_pile":[],"hand_card":[]}})";
EXPECT_THROW(MessageSerializer::deserialize(json), std::invalid_argument);
}
TEST(MessageSerializerTest, DeserializeInitGameWithNullDiscardPile)
{
std::string json = R"({"payload_type":"INIT_GAME","payload":{"discard_pile":null,"hand_card":[],"current_player":0}})";
EXPECT_THROW(MessageSerializer::deserialize(json), std::invalid_argument);
}
TEST(MessageSerializerTest, DeserializeInitGameWithNullHandCard)
{
std::string json = R"({"payload_type":"INIT_GAME","payload":{"discard_pile":[],"hand_card":null,"current_player":0}})";
EXPECT_THROW(MessageSerializer::deserialize(json), std::invalid_argument);
}
TEST(MessageSerializerTest, DeserializeInitGameWithStringDiscardPile)
{
std::string json = R"({"payload_type":"INIT_GAME","payload":{"discard_pile":"test","hand_card":[],"current_player":0}})";
EXPECT_THROW(MessageSerializer::deserialize(json), std::invalid_argument);
}
TEST(MessageSerializerTest, DeserializeInitGameWithStringHandCard)
{
std::string json = R"({"payload_type":"INIT_GAME","payload":{"discard_pile":[],"hand_card":"test","current_player":0}})";
EXPECT_THROW(MessageSerializer::deserialize(json), std::invalid_argument);
}
TEST(MessageSerializerTest, DeserializeInitGameWithStringCurrentPlayer)
{
std::string json = R"({"payload_type":"INIT_GAME","payload":{"discard_pile":[],"hand_card":[],"current_player":"0"}})";
EXPECT_THROW(MessageSerializer::deserialize(json), std::invalid_argument);
}
TEST(MessageSerializerTest, DeserializeInitGameWithNullCurrentPlayer)
{
std::string json = R"({"payload_type":"INIT_GAME","payload":{"discard_pile":[],"hand_card":[],"current_player":null}})";
EXPECT_THROW(MessageSerializer::deserialize(json), std::invalid_argument);
}
TEST(MessageSerializerTest, DeserializeInitGameWithNegativeCurrentPlayer)
{
std::string json = R"({"payload_type":"INIT_GAME","payload":{"discard_pile":[],"hand_card":[],"current_player":-1}})";
EXPECT_THROW(MessageSerializer::deserialize(json), std::invalid_argument);
}
TEST(MessageSerializerTest, DeserializeInitGameWithFloatCurrentPlayer)
{
std::string json = R"({"payload_type":"INIT_GAME","payload":{"discard_pile":[],"hand_card":[],"current_player":1.5}})";
EXPECT_THROW(MessageSerializer::deserialize(json), std::invalid_argument);
}
TEST(MessageSerializerTest, DeserializeInitGameWithInvalidCardInDiscardPile)
{
std::string json =
R"({"payload_type":"INIT_GAME","payload":{"discard_pile":[{"card_color":"Invalid","card_type":"5"}],"hand_card":[],"current_player":0}})";
EXPECT_THROW(MessageSerializer::deserialize(json), std::invalid_argument);
}
TEST(MessageSerializerTest, DeserializeInitGameWithInvalidCardInHandCard)
{
std::string json =
R"({"payload_type":"INIT_GAME","payload":{"discard_pile":[],"hand_card":[{"card_color":"Red","card_type":"Invalid"}],"current_player":0}})";
EXPECT_THROW(MessageSerializer::deserialize(json), std::invalid_argument);
}
TEST(MessageSerializerTest, DeserializeInitGameWithNonObjectCardInDiscardPile)
{
std::string json = R"({"payload_type":"INIT_GAME","payload":{"discard_pile":["string"],"hand_card":[],"current_player":0}})";
EXPECT_THROW(MessageSerializer::deserialize(json), std::invalid_argument);
}
TEST(MessageSerializerTest, DeserializeInitGameWithNonObjectCardInHandCard)
{
std::string json = R"({"payload_type":"INIT_GAME","payload":{"discard_pile":[],"hand_card":[123],"current_player":0}})";
EXPECT_THROW(MessageSerializer::deserialize(json), std::invalid_argument);
}
// ========== EndGamePayload Invalid Tests ==========
TEST(MessageSerializerTest, DeserializeEndGameWithNonNullPayload)
{
std::string json = R"({"payload_type":"END_GAME","payload":{}})";
EXPECT_THROW(MessageSerializer::deserialize(json), std::invalid_argument);
}
TEST(MessageSerializerTest, DeserializeEndGameWithArrayPayload)
{
std::string json = R"({"payload_type":"END_GAME","payload":[]})";
EXPECT_THROW(MessageSerializer::deserialize(json), std::invalid_argument);
}
TEST(MessageSerializerTest, DeserializeEndGameWithStringPayload)
{
std::string json = R"({"payload_type":"END_GAME","payload":"test"})";
EXPECT_THROW(MessageSerializer::deserialize(json), std::invalid_argument);
}
// ========== Edge Cases ==========
TEST(MessageSerializerTest, DeserializeWithExtraFields)
{
std::string json = R"({"payload_type":"START_GAME","payload":null,"extra_field":"ignored"})";
Message message = MessageSerializer::deserialize(json);
EXPECT_EQ(message.getMessagePayloadType(), MessagePayloadType::START_GAME);
}
TEST(MessageSerializerTest, DeserializeJoinGameWithExtraPayloadFields)
{
std::string json = R"({"payload_type":"JOIN_GAME","payload":{"name":"Player1","extra":"ignored"}})";
Message message = MessageSerializer::deserialize(json);
auto payload = std::get<JoinGamePayload>(message.getMessagePayload());
EXPECT_EQ(payload.playerName, "Player1");
}
TEST(MessageSerializerTest, DeserializeVeryLongPlayerName)
{
std::string longName(10000, 'a');
nlohmann::json json = {{"payload_type", "JOIN_GAME"}, {"payload", {{"name", longName}}}};
Message message = MessageSerializer::deserialize(json.dump());
auto payload = std::get<JoinGamePayload>(message.getMessagePayload());
EXPECT_EQ(payload.playerName, longName);
}
TEST(MessageSerializerTest, DeserializeLargeDrawCount)
{
std::string json = R"({"payload_type":"DRAW_CARD","payload":{"draw_count":2147483647}})";
Message message = MessageSerializer::deserialize(json);
auto payload = std::get<DrawCardPayload>(message.getMessagePayload());
EXPECT_EQ(payload.drawCount, 2147483647);
}
TEST(MessageSerializerTest, DeserializeLargeCurrentPlayer)
{
std::string json = R"({"payload_type":"INIT_GAME","payload":{"discard_pile":[],"hand_card":[],"current_player":4294967295}})";
Message message = MessageSerializer::deserialize(json);
auto payload = std::get<InitGamePayload>(message.getMessagePayload());
EXPECT_EQ(payload.currentPlayerIndex, 4294967295);
}
TEST(MessageSerializerTest, DeserializeUnicodePlayerName)
{
std::string json = R"({"payload_type":"JOIN_GAME","payload":{"name":"123🎮"}})";
Message message = MessageSerializer::deserialize(json);
auto payload = std::get<JoinGamePayload>(message.getMessagePayload());
EXPECT_EQ(payload.playerName, "玩家123🎮");
}
TEST(MessageSerializerTest, DeserializeWithWhitespace)
{
std::string json = R"(
{
"payload_type" : "START_GAME" ,
"payload" : null
}
)";
Message message = MessageSerializer::deserialize(json);
EXPECT_EQ(message.getMessagePayloadType(), MessagePayloadType::START_GAME);
}
TEST(MessageSerializerTest, DeserializeCompactJSON)
{
std::string json = R"({"payload_type":"START_GAME","payload":null})";
Message message = MessageSerializer::deserialize(json);
EXPECT_EQ(message.getMessagePayloadType(), MessagePayloadType::START_GAME);
}
TEST(MessageSerializerTest, DeserializeAllCardColors)
{
std::vector<std::pair<std::string, CardColor>> colors = {
{"Red", CardColor::RED}, {"Blue", CardColor::BLUE}, {"Green", CardColor::GREEN}, {"Yellow", CardColor::YELLOW}};
for (const auto &[colorStr, colorEnum] : colors) {
nlohmann::json json = {{"payload_type", "PLAY_CARD"}, {"payload", {{"card", {{"card_color", colorStr}, {"card_type", "5"}}}}}};
Message message = MessageSerializer::deserialize(json.dump());
auto payload = std::get<PlayCardPayload>(message.getMessagePayload());
EXPECT_EQ(payload.card.getColor(), colorEnum);
}
}
TEST(MessageSerializerTest, DeserializeAllCardTypes)
{
std::vector<std::pair<std::string, CardType>> types = {{"0", CardType::NUM0},
{"1", CardType::NUM1},
{"2", CardType::NUM2},
{"3", CardType::NUM3},
{"4", CardType::NUM4},
{"5", CardType::NUM5},
{"6", CardType::NUM6},
{"7", CardType::NUM7},
{"8", CardType::NUM8},
{"9", CardType::NUM9},
{"Skip", CardType::SKIP},
{"Reverse", CardType::REVERSE},
{"Draw 2", CardType::DRAW2},
{"Wild", CardType::WILD},
{"Wild Draw 4", CardType::WILDDRAWFOUR}};
for (const auto &[typeStr, typeEnum] : types) {
nlohmann::json json = {{"payload_type", "PLAY_CARD"}, {"payload", {{"card", {{"card_color", "Red"}, {"card_type", typeStr}}}}}};
Message message = MessageSerializer::deserialize(json.dump());
auto payload = std::get<PlayCardPayload>(message.getMessagePayload());
EXPECT_EQ(payload.card.getType(), typeEnum);
}
}
// ========== Security Tests ==========
TEST(MessageSerializerTest, DeserializeJSONBomb)
{
// Test deeply nested JSON (potential DoS)
std::string json = R"({"payload_type":"JOIN_GAME","payload":{"name":"player"}})";
for (int i = 0; i < 100; ++i) {
json = std::string(R"({"nested":)").append(json).append("}");
}
EXPECT_THROW(MessageSerializer::deserialize(json), std::exception);
}
TEST(MessageSerializerTest, DeserializeHugeArray)
{
// Test with a very large array
nlohmann::json json;
json["payload_type"] = "INIT_GAME";
json["payload"]["discard_pile"] = nlohmann::json::array();
for (int i = 0; i < 10000; ++i) {
json["payload"]["discard_pile"].push_back({{"card_color", "Red"}, {"card_type", "5"}});
}
json["payload"]["hand_card"] = nlohmann::json::array();
json["payload"]["current_player"] = 0;
EXPECT_NO_THROW(MessageSerializer::deserialize(json.dump()));
}
TEST(MessageSerializerTest, DeserializeNullCharacterInString)
{
std::string json = R"({"payload_type":"JOIN_GAME","payload":{"name":"Player)" + std::string(1, '\0') + R"(1"}})";
EXPECT_THROW(MessageSerializer::deserialize(json), std::invalid_argument);
}
TEST(MessageSerializerTest, DeserializeControlCharactersInString)
{
std::string json = R"({"payload_type":"JOIN_GAME","payload":{"name":"Player\u0001\u001f"}})";
Message message = MessageSerializer::deserialize(json);
auto payload = std::get<JoinGamePayload>(message.getMessagePayload());
EXPECT_EQ(payload.playerName.length(), 8);
}
TEST(MessageSerializerTest, DeserializeSQLInjectionAttempt)
{
std::string json = R"({"payload_type":"JOIN_GAME","payload":{"name":"'; DROP TABLE users; --"}})";
Message message = MessageSerializer::deserialize(json);
auto payload = std::get<JoinGamePayload>(message.getMessagePayload());
EXPECT_EQ(payload.playerName, "'; DROP TABLE users; --");
}
TEST(MessageSerializerTest, DeserializeXSSAttempt)
{
std::string json = R"({"payload_type":"JOIN_GAME","payload":{"name":"<script>alert('XSS')</script>"}})";
Message message = MessageSerializer::deserialize(json);
auto payload = std::get<JoinGamePayload>(message.getMessagePayload());
EXPECT_EQ(payload.playerName, "<script>alert('XSS')</script>");
}
TEST(MessageSerializerTest, DeserializePathTraversalAttempt)
{
std::string json = R"({"payload_type":"JOIN_GAME","payload":{"name":"../../etc/passwd"}})";
Message message = MessageSerializer::deserialize(json);
auto payload = std::get<JoinGamePayload>(message.getMessagePayload());
EXPECT_EQ(payload.playerName, "../../etc/passwd");
}