/*
* 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.metadata.MetadataManager;
import com.facebook.presto.metadata.Signature;
import com.facebook.presto.spi.type.SqlDate;
import com.facebook.presto.spi.type.StandardTypes;
import com.google.common.collect.ImmutableList;
import org.testng.annotations.Test;
import java.util.Arrays;
import static com.facebook.presto.block.BlockAssertions.createArrayBigintBlock;
import static com.facebook.presto.block.BlockAssertions.createBooleansBlock;
import static com.facebook.presto.block.BlockAssertions.createLongsBlock;
import static com.facebook.presto.block.BlockAssertions.createStringsBlock;
import static com.facebook.presto.block.BlockAssertions.createTypedLongsBlock;
import static com.facebook.presto.metadata.FunctionKind.AGGREGATE;
import static com.facebook.presto.operator.aggregation.AggregationTestUtils.assertAggregation;
import static com.facebook.presto.spi.type.DateType.DATE;
import static com.facebook.presto.spi.type.TypeSignature.parseTypeSignature;
public class TestArrayAggregation
{
private static final MetadataManager metadata = MetadataManager.createTestMetadataManager();
@Test
public void testEmpty()
throws Exception
{
InternalAggregationFunction bigIntAgg = metadata.getFunctionRegistry().getAggregateFunctionImplementation(
new Signature("array_agg", AGGREGATE, parseTypeSignature("array(bigint)"), parseTypeSignature(StandardTypes.BIGINT)));
assertAggregation(
bigIntAgg,
null,
createLongsBlock(new Long[] {}));
}
@Test
public void testNullOnly()
throws Exception
{
InternalAggregationFunction bigIntAgg = metadata.getFunctionRegistry().getAggregateFunctionImplementation(
new Signature("array_agg", AGGREGATE, parseTypeSignature("array(bigint)"), parseTypeSignature(StandardTypes.BIGINT)));
assertAggregation(
bigIntAgg,
Arrays.asList(null, null, null),
createLongsBlock(new Long[] {null, null, null}));
}
@Test
public void testNullPartial()
throws Exception
{
InternalAggregationFunction bigIntAgg = metadata.getFunctionRegistry().getAggregateFunctionImplementation(
new Signature("array_agg", AGGREGATE, parseTypeSignature("array(bigint)"), parseTypeSignature(StandardTypes.BIGINT)));
assertAggregation(
bigIntAgg,
Arrays.asList(null, 2L, null, 3L, null),
createLongsBlock(new Long[] {null, 2L, null, 3L, null}));
}
@Test
public void testBoolean()
throws Exception
{
InternalAggregationFunction booleanAgg = metadata.getFunctionRegistry().getAggregateFunctionImplementation(
new Signature("array_agg", AGGREGATE, parseTypeSignature("array(boolean)"), parseTypeSignature(StandardTypes.BOOLEAN)));
assertAggregation(
booleanAgg,
Arrays.asList(true, false),
createBooleansBlock(new Boolean[] {true, false}));
}
@Test
public void testBigInt()
throws Exception
{
InternalAggregationFunction bigIntAgg = metadata.getFunctionRegistry().getAggregateFunctionImplementation(
new Signature("array_agg", AGGREGATE, parseTypeSignature("array(bigint)"), parseTypeSignature(StandardTypes.BIGINT)));
assertAggregation(
bigIntAgg,
Arrays.asList(2L, 1L, 2L),
createLongsBlock(new Long[] {2L, 1L, 2L}));
}
@Test
public void testVarchar()
throws Exception
{
InternalAggregationFunction varcharAgg = metadata.getFunctionRegistry().getAggregateFunctionImplementation(
new Signature("array_agg", AGGREGATE, parseTypeSignature("array(varchar)"), parseTypeSignature(StandardTypes.VARCHAR)));
assertAggregation(
varcharAgg,
Arrays.asList("hello", "world"),
createStringsBlock(new String[] {"hello", "world"}));
}
@Test
public void testDate()
throws Exception
{
InternalAggregationFunction varcharAgg = metadata.getFunctionRegistry().getAggregateFunctionImplementation(
new Signature("array_agg", AGGREGATE, parseTypeSignature("array(date)"), parseTypeSignature(StandardTypes.DATE)));
assertAggregation(
varcharAgg,
Arrays.asList(new SqlDate(1), new SqlDate(2), new SqlDate(4)),
createTypedLongsBlock(DATE, ImmutableList.of(1L, 2L, 4L)));
}
@Test
public void testArray()
throws Exception
{
InternalAggregationFunction varcharAgg = metadata.getFunctionRegistry().getAggregateFunctionImplementation(
new Signature("array_agg", AGGREGATE, parseTypeSignature("array(array(bigint))"), parseTypeSignature("array(bigint)")));
assertAggregation(
varcharAgg,
Arrays.asList(Arrays.asList(1L), Arrays.asList(1L, 2L), Arrays.asList(1L, 2L, 3L)),
createArrayBigintBlock(ImmutableList.of(ImmutableList.of(1L), ImmutableList.of(1L, 2L), ImmutableList.of(1L, 2L, 3L))));
}
}