Function TestColumnSplit

tests/cpp/predictor/test_cpu_predictor.cc:121–132

namespace {
void TestColumnSplit() {
  Context ctx;
  size_t constexpr kRows = 5;
  size_t constexpr kCols = 5;
  auto dmat = RandomDataGenerator(kRows, kCols, 0).GenerateDMatrix();

  auto const world_size = collective::GetWorldSize();
  auto const rank = collective::GetRank();
  dmat = std::unique_ptr<DMatrix>{dmat->SliceCol(world_size, rank)};

  TestBasic(dmat.get(), &ctx);
}
}  // anonymous namespace

TEST(CpuPredictor, BasicColumnSplit) {