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column-test.cc
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column-test.cc
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// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements. See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership. The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License. You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied. See the License for the
// specific language governing permissions and limitations
// under the License.
#include <gtest/gtest.h>
#include <cstdint>
#include <memory>
#include <string>
#include <vector>
#include "arrow/field.h"
#include "arrow/schema.h"
#include "arrow/table/column.h"
#include "arrow/test-util.h"
#include "arrow/type.h"
#include "arrow/types/integer.h"
#include "arrow/util/bit-util.h"
#include "arrow/util/buffer.h"
#include "arrow/util/memory-pool.h"
#include "arrow/util/status.h"
using std::shared_ptr;
using std::vector;
namespace arrow {
class TestColumn : public ::testing::Test {
public:
void SetUp() {
pool_ = GetDefaultMemoryPool();
}
template <typename ArrayType>
std::shared_ptr<Array> MakeArray(int32_t length, int32_t null_count = 0) {
auto data = std::make_shared<PoolBuffer>(pool_);
auto nulls = std::make_shared<PoolBuffer>(pool_);
data->Resize(length * sizeof(typename ArrayType::value_type));
nulls->Resize(util::bytes_for_bits(length));
return std::make_shared<ArrayType>(length, data, 10, nulls);
}
protected:
MemoryPool* pool_;
std::shared_ptr<ChunkedArray> data_;
std::unique_ptr<Column> column_;
};
TEST_F(TestColumn, BasicAPI) {
ArrayVector arrays;
arrays.push_back(MakeArray<Int32Array>(100));
arrays.push_back(MakeArray<Int32Array>(100, 10));
arrays.push_back(MakeArray<Int32Array>(100, 20));
auto field = std::make_shared<Field>("c0", INT32);
column_.reset(new Column(field, arrays));
ASSERT_EQ("c0", column_->name());
ASSERT_TRUE(column_->type()->Equals(INT32));
ASSERT_EQ(300, column_->length());
ASSERT_EQ(30, column_->null_count());
ASSERT_EQ(3, column_->data()->num_chunks());
}
TEST_F(TestColumn, ChunksInhomogeneous) {
ArrayVector arrays;
arrays.push_back(MakeArray<Int32Array>(100));
arrays.push_back(MakeArray<Int32Array>(100, 10));
auto field = std::make_shared<Field>("c0", INT32);
column_.reset(new Column(field, arrays));
ASSERT_OK(column_->ValidateData());
arrays.push_back(MakeArray<Int16Array>(100, 10));
column_.reset(new Column(field, arrays));
ASSERT_RAISES(Invalid, column_->ValidateData());
}
} // namespace arrow