/*
* 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.isis.core.unittestsupport.comparable;
import java.util.List;
import com.google.common.collect.Lists;
import org.junit.Test;
public abstract class ComparableContractTest_compareTo<T extends Comparable<T>> {
/**
* Return an array of tuples; each tuple should consist of 4 elements, whereby
* item0 < item1 = item2 < item3
*
* Typically item0 should be null valued (if supported by the impl).
*/
protected abstract List<List<T>> orderedTuples();
@Test
public void compareAllOrderedTuples() {
new ComparableContractTester<T>(orderedTuples()).test();
}
/**
* Syntax sugar to remove boilerplate from subclasses.
*/
protected <E> List<E> listOf(E... elements) {
return Lists.newArrayList(elements);
}
}