/* * Copyright 1999-2015 dangdang.com. * <p> * 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. * </p> */ package com.dangdang.ddframe.rdb.sharding.merger.pipeline.coupling.aggregation; import org.junit.Test; import java.util.Collections; import static org.hamcrest.CoreMatchers.is; import static org.junit.Assert.assertThat; public final class ComparableAggregationUnitTest { @Test public void assertComparableAggregationForAsc() { ComparableAggregationUnit comparableAggregation = new ComparableAggregationUnit(true); comparableAggregation.merge(null); comparableAggregation.merge(Collections.<Comparable<?>>singletonList(null)); comparableAggregation.merge(Collections.<Comparable<?>>singletonList(1)); comparableAggregation.merge(Collections.<Comparable<?>>singletonList(10)); comparableAggregation.merge(Collections.<Comparable<?>>singletonList(5)); assertThat((Integer) comparableAggregation.getResult(), is(1)); } @Test public void assertComparableAggregationForDesc() { ComparableAggregationUnit comparableAggregation = new ComparableAggregationUnit(false); comparableAggregation.merge(null); comparableAggregation.merge(Collections.<Comparable<?>>singletonList(null)); comparableAggregation.merge(Collections.<Comparable<?>>singletonList(1)); comparableAggregation.merge(Collections.<Comparable<?>>singletonList(10)); comparableAggregation.merge(Collections.<Comparable<?>>singletonList(5)); assertThat((Integer) comparableAggregation.getResult(), is(10)); } }