/*
* Copyright 2002-2006 the original author or authors.
*
* 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.springframework.core;
import junit.framework.TestCase;
import java.util.Comparator;
/**
* Unit tests for the {@link OrderComparator} class.
*
* @author Rick Evans
*/
public final class OrderComparatorTests extends TestCase {
private Comparator comparator;
protected void setUp() throws Exception {
this.comparator = new OrderComparator();
}
public void testCompareOrderedInstancesBefore() throws Exception {
assertEquals(-1, this.comparator.compare(
new StubOrdered(100), new StubOrdered(2000)));
}
public void testCompareOrderedInstancesSame() throws Exception {
assertEquals(0, this.comparator.compare(
new StubOrdered(100), new StubOrdered(100)));
}
public void testCompareOrderedInstancesAfter() throws Exception {
assertEquals(1, this.comparator.compare(
new StubOrdered(982300), new StubOrdered(100)));
}
public void testCompareTwoNonOrderedInstancesEndsUpAsSame() throws Exception {
assertEquals(0, this.comparator.compare(new Object(), new Object()));
}
private static final class StubOrdered implements Ordered {
private final int order;
public StubOrdered(int order) {
this.order = order;
}
public int getOrder() {
return this.order;
}
}
}