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Merge pull request #60709 from ClickHouse/remove-test-column-object

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Remove unit test for ColumnObject
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Alexey Milovidov 2024-03-03 23:55:52 +03:00 committed by GitHub
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src/Columns/tests/gtest_column_object.cpp
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#include <Common/FieldVisitorsAccurateComparison.h>
#include <DataTypes/getLeastSupertype.h>
#include <DataTypes/ObjectUtils.h>
#include <DataTypes/DataTypeTuple.h>
#include <Interpreters/castColumn.h>
#include <Interpreters/convertFieldToType.h>
#include <Columns/ColumnObject.h>
#include <Columns/ColumnTuple.h>
#include <Common/FieldVisitorToString.h>
#include <Common/assert_cast.h>
#include <Common/randomSeed.h>
#include <fmt/core.h>
#include <pcg_random.hpp>
#include <gtest/gtest.h>
#include <random>
using namespace DB;
static pcg64 rng(randomSeed());
Field getRandomField(size_t type)
{
switch (type)
{
case 0:
return rng();
case 1:
return std::uniform_real_distribution<>(0.0, 1.0)(rng);
case 2:
return std::string(rng() % 10, 'a' + rng() % 26);
default:
return Field();
}
}
std::pair<ColumnObject::Subcolumn, std::vector<Field>> generate(size_t size)
{
bool has_defaults = rng() % 3 == 0;
size_t num_defaults = has_defaults ? rng() % size : 0;
ColumnObject::Subcolumn subcolumn(num_defaults, false);
std::vector<Field> fields;
while (subcolumn.size() < size)
{
size_t part_size = rng() % (size - subcolumn.size()) + 1;
size_t field_type = rng() % 3;
for (size_t i = 0; i < part_size; ++i)
{
fields.push_back(getRandomField(field_type));
subcolumn.insert(fields.back());
}
}
std::vector<Field> result_fields;
for (size_t i = 0; i < num_defaults; ++i)
result_fields.emplace_back();
result_fields.insert(result_fields.end(), fields.begin(), fields.end());
return {std::move(subcolumn), std::move(result_fields)};
}
void checkFieldsAreEqual(ColumnObject::Subcolumn subcolumn, const std::vector<Field> & fields)
{
ASSERT_EQ(subcolumn.size(), fields.size());
for (size_t i = 0; i < subcolumn.size(); ++i)
{
Field field;
subcolumn.get(i, field); // Also check 'get' method.
if (!applyVisitor(FieldVisitorAccurateEquals(), field, fields[i]))
{
std::cerr << fmt::format("Wrong value at position {}, expected {}, got {}",
i, applyVisitor(FieldVisitorToString(), fields[i]), applyVisitor(FieldVisitorToString(), field));
ASSERT_TRUE(false);
}
}
}
constexpr size_t T = 1000;
constexpr size_t N = 1000;
TEST(ColumnObject, InsertRangeFrom)
{
for (size_t t = 0; t < T; ++t)
{
auto [subcolumn_dst, fields_dst] = generate(N);
auto [subcolumn_src, fields_src] = generate(N);
ASSERT_EQ(subcolumn_dst.size(), fields_dst.size());
ASSERT_EQ(subcolumn_src.size(), fields_src.size());
const auto & type_dst = subcolumn_dst.getLeastCommonType();
const auto & type_src = subcolumn_src.getLeastCommonType();
auto type_res = getLeastSupertypeOrString(DataTypes{type_dst, type_src});
size_t from = rng() % subcolumn_src.size();
size_t to = rng() % subcolumn_src.size();
if (from > to)
std::swap(from, to);
++to;
for (auto & field : fields_dst)
{
if (field.isNull())
field = type_res->getDefault();
else
field = convertFieldToTypeOrThrow(field, *type_res);
}
for (size_t i = from; i < to; ++i)
{
if (fields_src[i].isNull())
fields_dst.push_back(type_res->getDefault());
else
fields_dst.push_back(convertFieldToTypeOrThrow(fields_src[i], *type_res));
}
subcolumn_dst.insertRangeFrom(subcolumn_src, from, to - from);
checkFieldsAreEqual(subcolumn_dst, fields_dst);
}
}
TEST(ColumnObject, Unflatten)
{
auto check_empty_tuple = [](const auto & type, const auto & column)
{
const auto & type_tuple = assert_cast<const DataTypeTuple &>(*type);
const auto & column_tuple = assert_cast<const ColumnTuple &>(*column);
ASSERT_EQ(type_tuple.getElements().size(), 1);
ASSERT_EQ(type_tuple.getElements()[0]->getName(), "UInt8");
ASSERT_EQ(type_tuple.getElementNames()[0], ColumnObject::COLUMN_NAME_DUMMY);
ASSERT_EQ(column_tuple.getColumns().size(), 1);
ASSERT_EQ(column_tuple.getColumns()[0]->getName(), "UInt8");
};
{
auto column_object = ColumnObject::create(false);
auto [column, type] = unflattenObjectToTuple(*column_object);
check_empty_tuple(type, column);
ASSERT_EQ(column->size(), 0);
}
{
auto column_object = ColumnObject::create(false);
column_object->insertManyDefaults(5);
auto [column, type] = unflattenObjectToTuple(*column_object);
check_empty_tuple(type, column);
ASSERT_EQ(column->size(), 5);
}
}