/*
* Copyright 2013 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.batch.core.job.flow.support;
import static org.junit.Assert.assertEquals;
import java.util.Comparator;
import org.junit.Before;
import org.junit.Test;
import org.springframework.batch.core.job.flow.State;
import org.springframework.batch.core.job.flow.StateSupport;
public class DefaultStateTransitionComparatorTests {
private State state = new StateSupport("state1");
private Comparator<StateTransition> comparator;
@Before
public void setUp() throws Exception {
comparator = new DefaultStateTransitionComparator();
}
@Test
public void testSimpleOrderingEqual() {
StateTransition transition = StateTransition.createStateTransition(state, "CONTIN???LE", "start");
assertEquals(0, comparator.compare(transition, transition));
}
@Test
public void testSimpleOrderingMoreGeneral() {
StateTransition transition = StateTransition.createStateTransition(state, "CONTIN???LE", "start");
StateTransition other = StateTransition.createStateTransition(state, "CONTINUABLE", "start");
assertEquals(1, comparator.compare(transition, other));
assertEquals(-1, comparator.compare(other, transition));
}
@Test
public void testSimpleOrderingMostGeneral() {
StateTransition transition = StateTransition.createStateTransition(state, "*", "start");
StateTransition other = StateTransition.createStateTransition(state, "CONTINUABLE", "start");
assertEquals(1, comparator.compare(transition, other));
assertEquals(-1, comparator.compare(other, transition));
}
@Test
public void testSubstringAndWildcard() {
StateTransition transition = StateTransition.createStateTransition(state, "CONTIN*", "start");
StateTransition other = StateTransition.createStateTransition(state, "CONTINUABLE", "start");
assertEquals(1, comparator.compare(transition, other));
assertEquals(-1, comparator.compare(other, transition));
}
@Test
public void testSimpleOrderingMostToNextGeneral() {
StateTransition transition = StateTransition.createStateTransition(state, "*", "start");
StateTransition other = StateTransition.createStateTransition(state, "C?", "start");
assertEquals(1, comparator.compare(transition, other));
assertEquals(-1, comparator.compare(other, transition));
}
@Test
public void testSimpleOrderingAdjacent() {
StateTransition transition = StateTransition.createStateTransition(state, "CON*", "start");
StateTransition other = StateTransition.createStateTransition(state, "CON?", "start");
assertEquals(1, comparator.compare(transition, other));
assertEquals(-1, comparator.compare(other, transition));
}
}