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/*!
* Copyright 2019 by Contributors
*/
#include <gtest/gtest.h>
#include <xgboost/data.h>
#include "../../../src/common/group_data.h"
namespace xgboost {
namespace common {
TEST(GroupData, ParallelGroupBuilder) {
std::vector<size_t> offsets;
std::vector<Entry> data;
ParallelGroupBuilder<Entry, size_t> builder(&offsets, &data);
builder.InitBudget(0, 1);
// Add two rows with two elements each
builder.AddBudget(0, 0, 2);
builder.AddBudget(1, 0, 2);
builder.InitStorage();
builder.Push(0, Entry(0, 0), 0);
builder.Push(0, Entry(1, 1), 0);
builder.Push(1, Entry(0, 2), 0);
builder.Push(1, Entry(1, 3), 0);
std::vector<Entry> expected_data{
Entry(0, 0),
Entry(1, 1),
Entry(0, 2),
Entry(1, 3),
};
std::vector<size_t> expected_offsets{0, 2, 4};
EXPECT_EQ(data, expected_data);
EXPECT_EQ(offsets, expected_offsets);
// Create new builder, add one more row given already populated offsets/data
ParallelGroupBuilder<Entry, size_t> builder2(&offsets, &data,
offsets.size() - 1);
builder2.InitBudget(0, 1);
builder2.AddBudget(2, 0, 2);
builder2.InitStorage();
builder2.Push(2, Entry(0, 4), 0);
builder2.Push(2, Entry(1, 5), 0);
expected_data.emplace_back(0, 4);
expected_data.emplace_back(1, 5);
expected_offsets.emplace_back(6);
EXPECT_EQ(data, expected_data);
EXPECT_EQ(offsets, expected_offsets);
}
} // namespace common
} // namespace xgboost
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