xgboost/tests/cpp/tree/test_param.cc
Jiaming Yuan 19ee0a3579
Refactor fast-hist, add tests for some updaters. (#3836)
Add unittest for prune.

Add unittest for refresh.

Refactor fast_hist.

* Remove fast_hist_param.
* Rename to quantile_hist.

Add unittests for QuantileHist.

* Refactor QuantileHist into .h and .cc file.
* Remove sync.h.
* Remove MGPU_mock test.

Rename fast hist method to quantile hist.
2018-11-07 21:15:07 +13:00

97 lines
2.2 KiB
C++

// Copyright by Contributors
#include "../../../src/tree/param.h"
#include "../helpers.h"
#include <gtest/gtest.h>
TEST(Param, VectorIOStream) {
std::vector<int> vals = {3, 2, 1};
std::stringstream ss;
std::vector<int> vals_in;
ss << vals;
EXPECT_EQ(ss.str(), "(3,2,1)");
ss >> vals_in;
EXPECT_EQ(vals_in, vals);
vals.clear(); ss.flush(); ss.clear(); ss.str("");
vals = {1};
ss << vals;
EXPECT_EQ(ss.str(), "(1,)");
}
TEST(Param, VectorStreamRead) {
std::vector<int> vals = {3, 2, 1};
std::stringstream ss;
std::vector<int> vals_in;
vals_in.clear(); ss.flush(); ss.clear(); ss.str("");
ss << "(3, 2, 1)";
ss >> vals_in;
EXPECT_EQ(vals_in, vals);
vals_in.clear(); ss.flush(); ss.clear(); ss.str("");
ss << "(3L,2L,1L)";
ss >> vals_in;
EXPECT_EQ(vals_in, vals);
vals_in.clear(); ss.flush(); ss.clear(); ss.str("");
ss << " (3,2,1,)";
ss >> vals_in;
EXPECT_EQ(vals_in, vals);
vals_in.clear(); ss.flush(); ss.clear(); ss.str("");
ss << " ( 3, 2,1 )";
ss >> vals_in;
EXPECT_EQ(vals_in, vals);
vals_in.clear(); ss.flush(); ss.clear(); ss.str("");
ss << " ( 3, 2,1 ) ";
ss >> vals_in;
EXPECT_EQ(vals_in, vals);
vals_in.clear(); ss.flush(); ss.clear(); ss.str("");
ss << " 321 ";
ss >> vals_in;
EXPECT_EQ(vals_in[0], 321);
vals_in.clear(); ss.flush(); ss.clear(); ss.str("");
ss << "(3.0,2,1)";
ss >> vals_in;
EXPECT_NE(vals_in, vals);
vals_in.clear(); ss.flush(); ss.clear(); ss.str("");
ss << "1a";
ss >> vals_in;
EXPECT_NE(vals_in, vals);
vals_in.clear(); ss.flush(); ss.clear(); ss.str("");
ss << "abcde";
ss >> vals_in;
EXPECT_NE(vals_in, vals);
vals_in.clear(); ss.flush(); ss.clear(); ss.str("");
ss << "(3,2,1";
ss >> vals_in;
EXPECT_NE(vals_in, vals);
}
TEST(Param, SplitEntry) {
xgboost::tree::SplitEntry se1;
EXPECT_FALSE(se1.NeedReplace(-1, 100));
xgboost::tree::SplitEntry se2;
EXPECT_FALSE(se1.Update(se2));
EXPECT_FALSE(se2.Update(-1, 100, 0, true));
ASSERT_TRUE(se2.Update(1, 100, 0, true));
ASSERT_TRUE(se1.Update(se2));
xgboost::tree::SplitEntry se3;
se3.Update(2, 101, 0, false);
xgboost::tree::SplitEntry::Reduce(se2, se3);
EXPECT_EQ(se2.SplitIndex(), 101);
EXPECT_FALSE(se2.DefaultLeft());
EXPECT_TRUE(se1.NeedReplace(3, 1));
}