/*
* Licensed 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.
*/
package com.facebook.presto.operator.aggregation;
import com.facebook.presto.block.Block;
import com.facebook.presto.block.BlockBuilder;
import com.facebook.presto.block.rle.RunLengthEncodedBlock;
import static com.facebook.presto.operator.aggregation.CountAggregation.COUNT;
import static com.facebook.presto.tuple.TupleInfo.SINGLE_LONG;
import static com.facebook.presto.tuple.Tuples.nullTuple;
public class TestCountAggregation
extends AbstractTestAggregationFunction
{
@Override
public Block getSequenceBlock(int start, int length)
{
BlockBuilder blockBuilder = new BlockBuilder(SINGLE_LONG);
for (int i = start; i < start + length; i++) {
blockBuilder.append(i);
}
return blockBuilder.build();
}
@Override
public AggregationFunction getFunction()
{
return COUNT;
}
@Override
public Number getExpectedValue(int start, int length)
{
return (long) length;
}
@Override
public void testAllPositionsNull()
throws Exception
{
Block nullsBlock = new RunLengthEncodedBlock(nullTuple(getSequenceBlock(0, 10).getTupleInfo()), 11);
testMultiplePositions(nullsBlock, 10L, 10);
}
@Override
public void testMixedNullAndNonNullPositions()
{
Block alternatingNullsBlock = createAlternatingNullsBlock(getSequenceBlock(0, 10));
testMultiplePositions(alternatingNullsBlock, 10L, 10);
}
@Override
public void testVectorAllPositionsNull()
throws Exception
{
Block nullsBlock = new RunLengthEncodedBlock(nullTuple(getSequenceBlock(0, 10).getTupleInfo()), 10);
testVectorMultiplePositions(nullsBlock, 10L);
}
@Override
public void testVectorMixedNullAndNonNullPositions()
{
Block alternatingNullsBlock = createAlternatingNullsBlock(getSequenceBlock(0, 5));
testVectorMultiplePositions(alternatingNullsBlock, 10L);
}
@Override
public void testPartialWithMixedNullAndNonNullPositions()
{
Block alternatingNullsBlock = createAlternatingNullsBlock(getSequenceBlock(0, 10));
testPartialWithMultiplePositions(alternatingNullsBlock, 20L);
}
@Override
public void testVectorPartialWithMixedNullAndNonNullPositions()
{
Block alternatingNullsBlock = createAlternatingNullsBlock(getSequenceBlock(0, 10));
testPartialWithMultiplePositions(alternatingNullsBlock, 20L);
}
// @Override
// public void testCombinerWithMixedNullAndNonNullPositions()
// {
// AlternatingNullsBlockCursor cursor = new AlternatingNullsBlockCursor(getSequenceBlock(0, 10).cursor());
// testCombinerWithMultiplePositions(cursor, 10L, 10);
// }
}