Tests: fix up alias and implement first tests

setupenv.bashrc

@@ -20,7 +20,12 @@ PROJECT_BASE_DIR="$( cd -- "$(dirname "${BASH_SOURCE[0]}")" >/dev/null 2>&1 ; pw
 alias clean="pushd \"$PROJECT_BASE_DIR\" >/dev/null 2>&1; scripts/clean.sh; popd >/dev/null 2>&1"
 alias clean_dependencies="pushd \"$PROJECT_BASE_DIR\" >/dev/null 2>&1; scripts/clean_dependencies.sh; popd >/dev/null 2>&1"
 alias setup_project="pushd \"$PROJECT_BASE_DIR\" >/dev/null 2>&1; scripts/setup_project.sh; popd >/dev/null 2>&1"
-alias run_tests="pushd \"$PROJECT_BASE_DIR\" >/dev/null 2>&1; scripts/test.sh; popd >/dev/null 2>&1"
+
+function run_tests {
+    pushd "$PROJECT_BASE_DIR" >/dev/null 2>&1
+    scripts/test.sh
+    popd >/dev/null 2>&1
+}
 
 function build {
     pushd "$PROJECT_BASE_DIR" >/dev/null 2>&1

src/test/nbt_helpers.cpp

@@ -1,3 +1,123 @@
+// Copyright 2022, FOSS-VG Developers and Contributers
+//
+// This program is free software: you can redistribute it and/or modify it
+// under the terms of the GNU Affero General Public License as published
+// by the Free Software Foundation, version 3.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied
+// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+// See the GNU Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// version 3 along with this program.
+// If not, see https://www.gnu.org/licenses/agpl-3.0.en.html
+
+#include <iostream>
+#include <cstdint>
+
+#include "assert.h++"
+
+#include "../lib/nbt.h++"
+#include "../lib/error.h++"
+
 int main(){
+
+    // used for all integer tests
+    uint8_t data[] = {30, 31, 32, 33, 34, 35, 36, 37, 38, 39};
+    uint64_t dataSize = 10;
+
+    // int8 ############################################################
+    // read successfully
+    uint64_t currentPosition = 5;
+    ASSERT(NBT::helper::readInt8(data, dataSize, currentPosition).value == 35);
+    ASSERT(NBT::helper::readInt8(data, dataSize, currentPosition).isError == false);
+    // begin of data
+    currentPosition = 0;
+    ASSERT(NBT::helper::readInt8(data, dataSize, currentPosition).value == 30);
+    ASSERT(NBT::helper::readInt8(data, dataSize, currentPosition).isError == false);
+    // end of data
+    currentPosition = 9;
+    ASSERT(NBT::helper::readInt8(data, dataSize, currentPosition).value == 39);
+    ASSERT(NBT::helper::readInt8(data, dataSize, currentPosition).isError == false);
+    // out of bounds
+    currentPosition = 10;
+    ASSERT(NBT::helper::readInt8(data, dataSize, currentPosition).isError == true);
+    ASSERT(NBT::helper::readInt8(data, dataSize, currentPosition).errorCode == ErrorCodes::RANGE_ERROR);
+
+    std::cout << "Passed readInt8 NBT helper test" << std::endl;
+
+    // int16 ###########################################################
+    // read successfully
+    currentPosition = 5;
+    ASSERT(NBT::helper::readInt16(data, dataSize, currentPosition).value == 8996);
+    ASSERT(NBT::helper::readInt16(data, dataSize, currentPosition).isError == false);
+    // begin of data
+    currentPosition = 0;
+    ASSERT(NBT::helper::readInt16(data, dataSize, currentPosition).value == 7711);
+    ASSERT(NBT::helper::readInt16(data, dataSize, currentPosition).isError == false);
+    // end of data
+    currentPosition = 8;
+    ASSERT(NBT::helper::readInt16(data, dataSize, currentPosition).value == 9767);
+    ASSERT(NBT::helper::readInt16(data, dataSize, currentPosition).isError == false);
+    // partially out of bounds
+    currentPosition = 9;
+    ASSERT(NBT::helper::readInt16(data, dataSize, currentPosition).isError == true);
+    ASSERT(NBT::helper::readInt16(data, dataSize, currentPosition).errorCode == ErrorCodes::RANGE_ERROR);
+    // fully out of bounds
+    currentPosition = 10;
+    ASSERT(NBT::helper::readInt16(data, dataSize, currentPosition).isError == true);
+    ASSERT(NBT::helper::readInt16(data, dataSize, currentPosition).errorCode == ErrorCodes::RANGE_ERROR);
+
+    std::cout << "Passed readInt16 NBT helper test" << std::endl;
+
+    // int32 ###########################################################
+    // read successfully
+    currentPosition = 5;
+    ASSERT(NBT::helper::readInt32(data, dataSize, currentPosition).value == 589571366);
+    ASSERT(NBT::helper::readInt32(data, dataSize, currentPosition).isError == false);
+    // begin of data
+    currentPosition = 0;
+    ASSERT(NBT::helper::readInt32(data, dataSize, currentPosition).value == 505356321);
+    ASSERT(NBT::helper::readInt32(data, dataSize, currentPosition).isError == false);
+    // end of data
+    currentPosition = 6;
+    ASSERT(NBT::helper::readInt32(data, dataSize, currentPosition).value == 606414375);
+    ASSERT(NBT::helper::readInt32(data, dataSize, currentPosition).isError == false);
+    // partially out of bounds
+    currentPosition = 7;
+    ASSERT(NBT::helper::readInt32(data, dataSize, currentPosition).isError == true);
+    ASSERT(NBT::helper::readInt32(data, dataSize, currentPosition).errorCode == ErrorCodes::RANGE_ERROR);
+    // fully out of bounds
+    currentPosition = 10;
+    ASSERT(NBT::helper::readInt32(data, dataSize, currentPosition).isError == true);
+    ASSERT(NBT::helper::readInt32(data, dataSize, currentPosition).errorCode == ErrorCodes::RANGE_ERROR);
+
+    std::cout << "Passed readInt32 NBT helper test" << std::endl;
+
+    // int64 ###########################################################
+    // read successfully
+    currentPosition = 1;
+    ASSERT(NBT::helper::readInt64(data, dataSize, currentPosition).value == 2242829044932683046L);
+    ASSERT(NBT::helper::readInt64(data, dataSize, currentPosition).isError == false);
+    // begin of data
+    currentPosition = 0;
+    ASSERT(NBT::helper::readInt64(data, dataSize, currentPosition).value == 2170488872094606374L);
+    ASSERT(NBT::helper::readInt64(data, dataSize, currentPosition).isError == false);
+    // end of data
+    currentPosition = 2;
+    ASSERT(NBT::helper::readInt64(data, dataSize, currentPosition).value == 2315169217770759719L);
+    ASSERT(NBT::helper::readInt64(data, dataSize, currentPosition).isError == false);
+    // partially out of bounds
+    currentPosition = 3;
+    ASSERT(NBT::helper::readInt64(data, dataSize, currentPosition).isError == true);
+    ASSERT(NBT::helper::readInt64(data, dataSize, currentPosition).errorCode == ErrorCodes::RANGE_ERROR);
+    // fully out of bounds
+    currentPosition = 10;
+    ASSERT(NBT::helper::readInt64(data, dataSize, currentPosition).isError == true);
+    ASSERT(NBT::helper::readInt64(data, dataSize, currentPosition).errorCode == ErrorCodes::RANGE_ERROR);
+
+    std::cout << "Passed int64 NBT helper test" << std::endl;
+
     return 0;
 }