288 lines
10 KiB
C++
288 lines
10 KiB
C++
// Copyright 2022, FOSS-VG Developers and Contributers
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//
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// Author(s):
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// BodgeMaster, Shwoomple
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//
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// This program is free software: you can redistribute it and/or modify it
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// under the terms of the GNU Affero General Public License as published
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// by the Free Software Foundation, version 3.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied
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// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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// See the GNU Affero General Public License for more details.
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//
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// You should have received a copy of the GNU Affero General Public License
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// version 3 along with this program.
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// If not, see https://www.gnu.org/licenses/agpl-3.0.en.html
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#include <iostream>
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#include <cstdint>
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#include <vector>
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#include "assert.hpp"
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#include "../lib/error.hpp"
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#include "../lib/net/conversion/varint.hpp"
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int main() {
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std::cout << "################################################################################" << std::endl;
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std::cout << "VarInt tests" << std::endl;
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std::cout << "################################################################################" << std::endl;
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// examples for numbers
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//
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// 32 Bit
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// 0000 0000 0000 0000 0000 0000 0000 0000 = 0 -> 0000 0000
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// 1111 1111 1111 1111 1111 1111 1111 1111 = -1 (unsigned int32 max) -> 1111 1111 1111 1111 1111 1111 1111 1111 0000 1111
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// 0000 0000 0010 0100 0011 1101 1011 1101 = 2375101 -> 1011 1101 1111 1011 1001 0000 0000 0001
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// 0000 0000 0000 0000 0001 0001 0001 0001 = 4369 -> 1001 0001 0010 0010
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//
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// 64 Bit
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// 0010 0000 0001 0000 0000 0000 1010 0010 1010 1000 0010 0000 1101 0000 1001 0011 = 2310347307446489235 -> 1101 0011 1010 0001 1000 0011 1100 0001 1010 1010 1001 0100 1000 0000 1000 1000 0010 0000
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// 1000 0000 0100 0000 0010 0000 0001 0000 0000 1000 0000 0100 0000 0010 0000 0001 = -9205322385119247871 -> 1000 0001 1000 0100 1001 0000 1100 0000 1000 0000 1000 0010 1000 1000 1010 0000 1000 0000 0000 0001
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// 1111 1111 1111 1111 1111 1111 1111 1111 1111 1111 1111 1111 1111 1111 1111 1111 = -1 (unsigned int64 max) -> 1111 1111 1111 1111 1111 1111 1111 1111 1111 1111 1111 1111 1111 1111 1111 1111 1111 1111 0000 0001
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{
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std::vector<uint8_t> data = std::vector<uint8_t>();
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uint8_t processedBytes;
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ErrorOr<int32_t> result = VarInt::fromVar32(data, 0, &processedBytes);
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ASSERT(result.isError);
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ASSERT(result.errorCode == ErrorCodes::OUT_OF_RANGE);
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}
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{
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std::vector<uint8_t> data = { 0x84 };
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uint8_t processedBytes;
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ErrorOr<int32_t> result = VarInt::fromVar32(data, 0, &processedBytes);
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ASSERT(result.isError);
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ASSERT(result.errorCode == ErrorCodes::OVERRUN);
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}
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{
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std::vector<uint8_t> data = { 0xff, 0xff, 0xff, 0xff, 0xff, 0x01 };
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uint8_t processedBytes;
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ErrorOr<int32_t> result = VarInt::fromVar32(data, 0, &processedBytes);
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ASSERT(result.isError);
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ASSERT(result.errorCode == ErrorCodes::OVERFLOW);
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}
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uint8_t zeroProcessedBytes = 0;
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std::vector<uint8_t> zeroData;
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zeroData.push_back(0);
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ErrorOr<int32_t> zero = VarInt::fromVar32(zeroData, 0, &zeroProcessedBytes);
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ASSERT(!zero.isError);
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ASSERT(zero.value == 0);
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ASSERT(zeroProcessedBytes == 1);
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uint8_t minusOneProcessedBytes = 0;
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std::vector<uint8_t> minusOneData;
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minusOneData.push_back(255);
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minusOneData.push_back(255);
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minusOneData.push_back(255);
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minusOneData.push_back(255);
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minusOneData.push_back(15);
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ErrorOr<int32_t> minusOne = VarInt::fromVar32(minusOneData, 0, &minusOneProcessedBytes);
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ASSERT(!minusOne.isError);
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ASSERT(minusOne.value == -1);
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ASSERT(minusOneProcessedBytes == 5);
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uint8_t smallProcessedBytes = 0;
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std::vector<uint8_t> smallData;
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// offset data by 3 to test initialPosition feature
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smallData.push_back(0b10010001);
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smallData.push_back(0b10010001);
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smallData.push_back(0b10010001);
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smallData.push_back(0b10010001);
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smallData.push_back(0b00100010);
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ErrorOr<int32_t> small = VarInt::fromVar32(smallData, 3, &smallProcessedBytes);
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ASSERT(!small.isError);
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ASSERT(small.value == 4369);
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ASSERT(smallProcessedBytes == 2);
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uint8_t bigProcessedBytes = 0;
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std::vector<uint8_t> bigData;
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bigData.push_back(0b10111101);
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bigData.push_back(0b11111011);
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bigData.push_back(0b10010000);
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bigData.push_back(0b00000001);
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ErrorOr<int32_t> big = VarInt::fromVar32(bigData, 0, &bigProcessedBytes);
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ASSERT(!big.isError);
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ASSERT(big.value == 2375101);
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ASSERT(bigProcessedBytes == 4);
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//TODO: test error conditions
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std::cout << "Passed fromVar32 test." << std::endl;
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{
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std::vector<uint8_t> data = std::vector<uint8_t>();
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uint8_t processedBytes;
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ErrorOr<int64_t> result = VarInt::fromVar64(data, 0, &processedBytes);
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ASSERT(result.isError);
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ASSERT(result.errorCode == ErrorCodes::OUT_OF_RANGE);
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}
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{
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std::vector<uint8_t> data = { 0x84 };
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uint8_t processedBytes;
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ErrorOr<int64_t> result = VarInt::fromVar64(data, 0, &processedBytes);
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ASSERT(result.isError);
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ASSERT(result.errorCode == ErrorCodes::OVERRUN);
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}
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{
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std::vector<uint8_t> data = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x01 };
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uint8_t processedBytes;
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ErrorOr<int64_t> result = VarInt::fromVar64(data, 0, &processedBytes);
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ASSERT(result.isError);
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ASSERT(result.errorCode == ErrorCodes::OVERFLOW);
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}
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uint8_t zero64ProcessedBytes = 0;
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std::vector<uint8_t> zero64Data;
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zero64Data.push_back(0);
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ErrorOr<int64_t> zero64 = VarInt::fromVar64(zero64Data, 0, &zero64ProcessedBytes);
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ASSERT(!zero64.isError);
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ASSERT(zero64.value == 0);
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ASSERT(zero64ProcessedBytes == 1);
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uint8_t minusOne64ProcessedBytes = 0;
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std::vector<uint8_t> minusOne64Data;
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minusOne64Data.push_back(255);
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minusOne64Data.push_back(255);
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minusOne64Data.push_back(255);
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minusOne64Data.push_back(255);
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minusOne64Data.push_back(255);
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minusOne64Data.push_back(255);
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minusOne64Data.push_back(255);
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minusOne64Data.push_back(255);
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minusOne64Data.push_back(255);
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minusOne64Data.push_back(1);
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ErrorOr<int64_t> minusOne64 = VarInt::fromVar64(minusOne64Data, 0, &minusOne64ProcessedBytes);
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ASSERT(!minusOne64.isError);
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ASSERT(minusOne64.value == -1);
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ASSERT(minusOne64ProcessedBytes == 10);
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// 0010 0000 0001 0000 0000 0000 1010 0010 1010 1000 0010 0000 1101 0000 1001 0011 = 2310347307446489235 -> 1101 0011 1010 0001 1000 0011 1100 0001 1010 1010 1001 0100 1000 0000 1000 1000 0010 0000
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uint8_t small64ProcessedBytes = 0;
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std::vector<uint8_t> small64Data;
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// offset data by 3 to test initialPosition feature
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small64Data.push_back(0b11010011);
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small64Data.push_back(0b11010011);
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small64Data.push_back(0b11010011);
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small64Data.push_back(0b10010011);
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small64Data.push_back(0b10100001);
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small64Data.push_back(0b10000011);
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small64Data.push_back(0b11000001);
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small64Data.push_back(0b10101010);
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small64Data.push_back(0b10010100);
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small64Data.push_back(0b10000000);
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small64Data.push_back(0b10001000);
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small64Data.push_back(0b00100000);
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ErrorOr<int64_t> small64 = VarInt::fromVar64(small64Data, 3, &small64ProcessedBytes);
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ASSERT(!small64.isError);
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ASSERT(small64.value == 2310347307446489235);
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ASSERT(small64ProcessedBytes == 9);
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// 1000 0000 0100 0000 0010 0000 0001 0000 0000 1000 0000 0100 0000 0010 0000 0001 = -9205322385119247871 -> 1000 0001 1000 0100 1001 0000 1100 0000 1000 0000 1000 0010 1000 1000 1010 0000 1000 0000 0000 0001
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uint8_t big64ProcessedBytes = 0;
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std::vector<uint8_t> big64Data;
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big64Data.push_back(0b10000001);
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big64Data.push_back(0b10000100);
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big64Data.push_back(0b10010000);
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big64Data.push_back(0b11000000);
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big64Data.push_back(0b10000000);
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big64Data.push_back(0b10000010);
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big64Data.push_back(0b10001000);
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big64Data.push_back(0b10100000);
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big64Data.push_back(0b10000000);
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big64Data.push_back(0b00000001);
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ErrorOr<int64_t> big64 = VarInt::fromVar64(big64Data, 0, &big64ProcessedBytes);
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ASSERT(!big64.isError);
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ASSERT(big64.value == -9205322385119247871);
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ASSERT(big64ProcessedBytes == 10);
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//TODO: Test error conditions
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std::cout << "Passed fromVar64 test." << std::endl;
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// reversing all the previous tests
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std::vector<uint8_t> dataDump;
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VarInt::toVar32(0, dataDump);
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ASSERT(dataDump[0] == 0);
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VarInt::toVar32(-1, dataDump);
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ASSERT(
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dataDump[1]==255 &&
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dataDump[2]==255 &&
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dataDump[3]==255 &&
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dataDump[4]==255 &&
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dataDump[5]==15
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);
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VarInt::toVar32(4369, dataDump);
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ASSERT(
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dataDump[6]==0b10010001 &&
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dataDump[7]==0b00100010
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);
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VarInt::toVar32(2375101, dataDump);
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ASSERT(
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dataDump[8]==0b10111101 &&
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dataDump[9]==0b11111011 &&
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dataDump[10]==0b10010000 &&
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dataDump[11]==0b00000001
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);
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std::cout << "Passed toVar32 test." << std::endl;
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VarInt::toVar64(0, dataDump);
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ASSERT(dataDump[12]==0);
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VarInt::toVar64(-1, dataDump);
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ASSERT(
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dataDump[13]==255 &&
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dataDump[14]==255 &&
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dataDump[15]==255 &&
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dataDump[16]==255 &&
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dataDump[17]==255 &&
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dataDump[18]==255 &&
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dataDump[19]==255 &&
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dataDump[20]==255 &&
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dataDump[21]==255 &&
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dataDump[22]==1
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);
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VarInt::toVar64(2310347307446489235, dataDump);
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ASSERT(
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dataDump[23]==0b10010011 &&
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dataDump[24]==0b10100001 &&
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dataDump[25]==0b10000011 &&
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dataDump[26]==0b11000001 &&
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dataDump[27]==0b10101010 &&
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dataDump[28]==0b10010100 &&
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dataDump[29]==0b10000000 &&
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dataDump[30]==0b10001000 &&
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dataDump[31]==0b00100000
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);
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VarInt::toVar64(-9205322385119247871, dataDump);
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ASSERT(
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dataDump[32]==0b10000001 &&
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dataDump[33]==0b10000100 &&
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dataDump[34]==0b10010000 &&
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dataDump[35]==0b11000000 &&
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dataDump[36]==0b10000000 &&
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dataDump[37]==0b10000010 &&
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dataDump[38]==0b10001000 &&
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dataDump[39]==0b10100000 &&
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dataDump[40]==0b10000000 &&
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dataDump[41]==0b00000001
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)
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std::cout << "Passed toVar64 test." << std::endl;
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return 0;
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}
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