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test_file_iterator.cc
46 lines (41 loc) · 1.19 KB
/
test_file_iterator.cc
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/*!
* Copyright 2021 XGBoost contributors
*/
#include <gtest/gtest.h>
#include <memory>
#include "../../../src/data/adapter.h"
#include "../../../src/data/file_iterator.h"
#include "../../../src/data/proxy_dmatrix.h"
#include "../filesystem.h" // dmlc::TemporaryDirectory
#include "../helpers.h"
namespace xgboost {
namespace data {
TEST(FileIterator, Basic) {
auto check_n_features = [](FileIterator *iter) {
size_t n_features = 0;
iter->Reset();
while (iter->Next()) {
auto proxy = MakeProxy(iter->Proxy());
auto csr = dmlc::get<std::shared_ptr<CSRArrayAdapter>>(proxy->Adapter());
n_features = std::max(n_features, csr->NumColumns());
}
ASSERT_EQ(n_features, 5);
};
dmlc::TemporaryDirectory tmpdir;
{
auto zpath = tmpdir.path + "/0-based.svm";
CreateBigTestData(zpath, 3 * 64, true);
zpath += "?indexing_mode=0";
FileIterator iter{zpath, 0, 1, "libsvm"};
check_n_features(&iter);
}
{
auto opath = tmpdir.path + "/1-based.svm";
CreateBigTestData(opath, 3 * 64, false);
opath += "?indexing_mode=1";
FileIterator iter{opath, 0, 1, "libsvm"};
check_n_features(&iter);
}
}
} // namespace data
} // namespace xgboost