74 lines
2.4 KiB
C++
74 lines
2.4 KiB
C++
/*!
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* Copyright (c) 2022-2026 Microsoft Corporation. All rights reserved.
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* Copyright (c) 2022-2026 The LightGBM developers. All rights reserved.
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* Licensed under the MIT License. See LICENSE file in the project root for license information.
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*/
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#include <gtest/gtest.h>
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#include <LightGBM/utils/byte_buffer.h>
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#include <memory>
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#include <random>
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using LightGBM::ByteBuffer;
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TEST(ByteBuffer, JustWorks) {
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std::unique_ptr<ByteBuffer> buffer;
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buffer.reset(new ByteBuffer());
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int cumulativeSize = 0;
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EXPECT_EQ(cumulativeSize, buffer->GetSize());
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int8_t int8Val = 34;
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cumulativeSize += sizeof(int8_t);
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buffer->Write(&int8Val, sizeof(int8_t));
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EXPECT_EQ(cumulativeSize, buffer->GetSize());
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EXPECT_EQ(int8Val, buffer->GetAt(cumulativeSize - 1));
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int16_t int16Val = 33;
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cumulativeSize += sizeof(int16_t);
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buffer->Write(&int16Val, sizeof(int16_t));
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EXPECT_EQ(cumulativeSize, buffer->GetSize());
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int16_t serializedInt16 = 0;
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char* int16Ptr = reinterpret_cast<char*>(&serializedInt16);
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for (unsigned int i = 0; i < sizeof(int16_t); i++) {
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int16Ptr[i] = buffer->GetAt(cumulativeSize - (sizeof(int16_t) - i));
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}
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EXPECT_EQ(int16Val, serializedInt16);
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int64_t int64Val = 35;
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cumulativeSize += sizeof(int64_t);
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buffer->Write(&int64Val, sizeof(int64_t));
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EXPECT_EQ(cumulativeSize, buffer->GetSize());
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int64_t serializedInt64 = 0;
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char* int64Ptr = reinterpret_cast<char*>(&serializedInt64);
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for (unsigned int i = 0; i < sizeof(int64_t); i++) {
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int64Ptr[i] = buffer->GetAt(cumulativeSize - (sizeof(int64_t) - i));
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}
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EXPECT_EQ(int64Val, serializedInt64);
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double doubleVal = 36.6;
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cumulativeSize += sizeof(double);
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buffer->Write(&doubleVal, sizeof(doubleVal));
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EXPECT_EQ(cumulativeSize, buffer->GetSize());
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double serializedDouble = 0;
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char* doublePtr = reinterpret_cast<char*>(&serializedDouble);
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for (unsigned int i = 0; i < sizeof(double); i++) {
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doublePtr[i] = buffer->GetAt(cumulativeSize - (sizeof(double) - i));
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}
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EXPECT_EQ(doubleVal, serializedDouble);
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const int charSize = 3;
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char charArrayVal[charSize] = { 'a', 'b', 'c' };
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cumulativeSize += charSize;
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buffer->Write(charArrayVal, charSize);
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EXPECT_EQ(cumulativeSize, buffer->GetSize());
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for (int i = 0; i < charSize; i++) {
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EXPECT_EQ(charArrayVal[i], buffer->GetAt(cumulativeSize - (charSize - i)));
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}
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// Test that Data() points to first value written
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EXPECT_EQ(int8Val, *buffer->Data());
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}
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