/*
* Copyright 2014 Red Hat, Inc. and/or its affiliates.
*
* 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 org.dashbuilder.dataset;
import java.util.Arrays;
import java.util.List;
import org.dashbuilder.DataSetCore;
import org.dashbuilder.dataset.group.AggregateFunction;
import org.dashbuilder.dataset.group.AggregateFunctionManager;
import org.dashbuilder.dataset.group.AggregateFunctionType;
import org.junit.Before;
import org.junit.Test;
import static org.fest.assertions.api.Assertions.assertThat;
public class AggregateFunctionTest {
AggregateFunctionManager aggregateFunctionManager;
List listOfNumbers = Arrays.asList(1, 2, 3, 4, 5);
List listOfStrings = Arrays.asList("A", "B", "C", "A", "B");
@Before
public void setUp() throws Exception {
aggregateFunctionManager = DataSetCore.get().getAggregateFunctionManager();
}
@Test
public void testSumFunction() throws Exception {
AggregateFunction sf = aggregateFunctionManager.getFunctionByType(AggregateFunctionType.SUM);
double result = sf.aggregate(listOfNumbers);
assertThat(result).isEqualTo(15);
}
@Test
public void testAvgFunction() throws Exception {
AggregateFunction sf = aggregateFunctionManager.getFunctionByType(AggregateFunctionType.AVERAGE);
double result = sf.aggregate(listOfNumbers);
assertThat(result).isEqualTo(3);
}
@Test
public void testMaxFunction() throws Exception {
AggregateFunction sf = aggregateFunctionManager.getFunctionByType(AggregateFunctionType.MAX);
double result = sf.aggregate(listOfNumbers);
assertThat(result).isEqualTo(5);
}
@Test
public void testMinFunction() throws Exception {
AggregateFunction sf = aggregateFunctionManager.getFunctionByType(AggregateFunctionType.MIN);
double result = sf.aggregate(listOfNumbers);
assertThat(result).isEqualTo(1);
}
@Test
public void testCountFunction() throws Exception {
AggregateFunction sf = aggregateFunctionManager.getFunctionByType(AggregateFunctionType.COUNT);
double result = sf.aggregate(listOfStrings);
assertThat(result).isEqualTo(5);
}
@Test
public void testDistinctFunction() throws Exception {
AggregateFunction sf = aggregateFunctionManager.getFunctionByType(AggregateFunctionType.DISTINCT);
double result = sf.aggregate(listOfStrings);
assertThat(result).isEqualTo(3);
}
}