| /* |
| * 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. |
| */ |
| |
| package org.apache.druid.query.aggregation; |
| |
| import org.junit.Assert; |
| import org.junit.Test; |
| |
| import java.util.Comparator; |
| |
| /** |
| */ |
| public class CountAggregatorTest |
| { |
| @Test |
| public void testAggregate() |
| { |
| CountAggregator agg = new CountAggregator(); |
| |
| Assert.assertEquals(0L, agg.get()); |
| Assert.assertEquals(0L, agg.get()); |
| Assert.assertEquals(0L, agg.get()); |
| agg.aggregate(); |
| Assert.assertEquals(1L, agg.get()); |
| Assert.assertEquals(1L, agg.get()); |
| Assert.assertEquals(1L, agg.get()); |
| agg.aggregate(); |
| Assert.assertEquals(2L, agg.get()); |
| Assert.assertEquals(2L, agg.get()); |
| Assert.assertEquals(2L, agg.get()); |
| } |
| |
| @Test |
| public void testComparator() |
| { |
| CountAggregator agg = new CountAggregator(); |
| |
| Object first = agg.get(); |
| agg.aggregate(); |
| |
| Comparator comp = new CountAggregatorFactory("null").getComparator(); |
| |
| Assert.assertEquals(-1, comp.compare(first, agg.get())); |
| Assert.assertEquals(0, comp.compare(first, first)); |
| Assert.assertEquals(0, comp.compare(agg.get(), agg.get())); |
| Assert.assertEquals(1, comp.compare(agg.get(), first)); |
| } |
| |
| @Test |
| public void testWithName() |
| { |
| CountAggregatorFactory factory = new CountAggregatorFactory("test"); |
| Assert.assertEquals(factory, factory.withName("test")); |
| |
| Assert.assertEquals("newTest", factory.withName("newTest").getName()); |
| } |
| } |