/*
* Licensed to CRATE Technology GmbH ("Crate") under one or more contributor
* license agreements. See the NOTICE file distributed with this work for
* additional information regarding copyright ownership. Crate 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.
*
* However, if you have executed another commercial license agreement
* with Crate these terms will supersede the license and you may use the
* software solely pursuant to the terms of the relevant commercial agreement.
*/
package io.crate.operation.aggregation.impl;
import com.google.common.collect.ImmutableList;
import io.crate.Streamer;
import io.crate.operation.aggregation.AggregationTest;
import io.crate.types.DataType;
import io.crate.types.DataTypes;
import org.elasticsearch.common.io.stream.BytesStreamOutput;
import org.elasticsearch.common.io.stream.StreamInput;
import org.junit.Test;
import static io.crate.testing.SymbolMatchers.isLiteral;
public class CountAggregationTest extends AggregationTest {
private Object[][] executeAggregation(DataType dataType, Object[][] data) throws Exception {
return executeAggregation("count", dataType, data);
}
@Test
public void testReturnType() throws Exception {
// Return type is fixed to Long
assertEquals(DataTypes.LONG,
functions.getBuiltin("count", ImmutableList.of(DataTypes.INTEGER)).info().returnType());
}
@Test
public void testDouble() throws Exception {
Object[][] result = executeAggregation(DataTypes.DOUBLE, new Object[][]{{0.7d}, {0.3d}});
assertEquals(2L, result[0][0]);
}
@Test
public void testFloat() throws Exception {
Object[][] result = executeAggregation(DataTypes.FLOAT, new Object[][]{{0.7f}, {0.3f}});
assertEquals(2L, result[0][0]);
}
@Test
public void testInteger() throws Exception {
Object[][] result = executeAggregation(DataTypes.INTEGER, new Object[][]{{7}, {3}});
assertEquals(2L, result[0][0]);
}
@Test
public void testLong() throws Exception {
Object[][] result = executeAggregation(DataTypes.LONG, new Object[][]{{7L}, {3L}});
assertEquals(2L, result[0][0]);
}
@Test
public void testShort() throws Exception {
Object[][] result = executeAggregation(DataTypes.SHORT, new Object[][]{{(short) 7}, {(short) 3}});
assertEquals(2L, result[0][0]);
}
@Test
public void testString() throws Exception {
Object[][] result = executeAggregation(DataTypes.STRING, new Object[][]{{"Youri"}, {"Ruben"}});
assertEquals(2L, result[0][0]);
}
@Test
public void testNormalizeWithNullLiteral() {
assertThat(normalize("count", null, DataTypes.STRING), isLiteral(0L));
assertThat(normalize("count", null, DataTypes.UNDEFINED), isLiteral(0L));
}
@Test
public void testNoInput() throws Exception {
// aka. COUNT(*)
Object[][] result = executeAggregation(null, new Object[][]{{}, {}});
assertEquals(2L, result[0][0]);
}
@Test
public void testStreaming() throws Exception {
CountAggregation.LongState l1 = new CountAggregation.LongState(12345L);
BytesStreamOutput out = new BytesStreamOutput();
Streamer streamer = CountAggregation.LongStateType.INSTANCE.streamer();
streamer.writeValueTo(out, l1);
StreamInput in = out.bytes().streamInput();
CountAggregation.LongState l2 = (CountAggregation.LongState) streamer.readValueFrom(in);
assertEquals(l1.value, l2.value);
}
}