54da4b3185
- Update SparseDMatrix comment. - Use a pointer in the bitfield. We will replace the `std::vector<bool>` in `ColumnMatrix` with bitfield. - Clean up the page source. The timer is removed as it's inaccurate once we swap the mmap pointer into the page.
101 lines
2.7 KiB
C++
101 lines
2.7 KiB
C++
/**
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* Copyright 2019-2023, XGBoost contributors
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*/
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#include <gtest/gtest.h>
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#include "../../../src/common/bitfield.h"
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namespace xgboost {
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TEST(BitField, Check) {
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{
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std::vector<LBitField64::value_type> storage(4, 0);
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storage[2] = 2;
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auto bits = LBitField64({storage.data(),
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static_cast<typename common::Span<LBitField64::value_type>::index_type>(
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storage.size())});
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size_t true_bit = 190;
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for (size_t i = true_bit + 1; i < bits.Capacity(); ++i) {
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ASSERT_FALSE(bits.Check(i));
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}
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ASSERT_TRUE(bits.Check(true_bit));
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for (size_t i = 0; i < true_bit; ++i) {
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ASSERT_FALSE(bits.Check(i));
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}
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}
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{
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std::vector<RBitField8::value_type> storage(4, 0);
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storage[2] = 1 << 3;
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auto bits = RBitField8({storage.data(),
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static_cast<typename common::Span<RBitField8::value_type>::index_type>(
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storage.size())});
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size_t true_bit = 19;
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for (size_t i = 0; i < true_bit; ++i) {
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ASSERT_FALSE(bits.Check(i));
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}
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ASSERT_TRUE(bits.Check(true_bit));
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for (size_t i = true_bit + 1; i < bits.Capacity(); ++i) {
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ASSERT_FALSE(bits.Check(i));
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}
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}
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{
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// regression test for correct index type.
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std::vector<RBitField8::value_type> storage(33, 0);
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storage[32] = static_cast<uint8_t>(1);
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auto bits = RBitField8({storage.data(), storage.size()});
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ASSERT_TRUE(bits.Check(256));
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}
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}
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template <typename BitFieldT, typename VT = typename BitFieldT::value_type>
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void TestBitFieldSet(typename BitFieldT::value_type res, size_t index, size_t true_bit) {
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using IndexT = typename common::Span<VT>::index_type;
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std::vector<VT> storage(4, 0);
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auto bits = BitFieldT({storage.data(), static_cast<IndexT>(storage.size())});
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bits.Set(true_bit);
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for (size_t i = 0; i < true_bit; ++i) {
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ASSERT_FALSE(bits.Check(i));
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}
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ASSERT_TRUE(bits.Check(true_bit));
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for (size_t i = true_bit + 1; i < storage.size() * BitFieldT::kValueSize; ++i) {
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ASSERT_FALSE(bits.Check(i));
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}
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ASSERT_EQ(storage[index], res);
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}
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TEST(BitField, Set) {
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{
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TestBitFieldSet<LBitField64>(2, 2, 190);
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}
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{
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TestBitFieldSet<RBitField8>(1 << 3, 2, 19);
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}
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}
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template <typename BitFieldT, typename VT = typename BitFieldT::value_type>
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void TestBitFieldClear(size_t clear_bit) {
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using IndexT = typename common::Span<VT>::index_type;
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std::vector<VT> storage(4, 0);
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auto bits = BitFieldT({storage.data(), static_cast<IndexT>(storage.size())});
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bits.Set(clear_bit);
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bits.Clear(clear_bit);
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ASSERT_FALSE(bits.Check(clear_bit));
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}
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TEST(BitField, Clear) {
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{
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TestBitFieldClear<LBitField64>(190);
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}
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{
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TestBitFieldClear<RBitField8>(19);
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}
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}
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} // namespace xgboost
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