/*
 * Copyright 2006-2007 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.state;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;

import java.util.Arrays;
import java.util.Collections;

import org.junit.Test;
import org.springframework.batch.core.job.flow.FlowExecution;
import org.springframework.batch.core.job.flow.FlowExecutionStatus;

/**
 * @author Dave Syer
 * 
 */
public class SimpleFlowExecutionAggregatorTests {

	private MaxValueFlowExecutionAggregator aggregator = new MaxValueFlowExecutionAggregator();

	@Test
	public void testFailed() throws Exception {
		FlowExecution first = new FlowExecution("foo", FlowExecutionStatus.COMPLETED);
		FlowExecution second = new FlowExecution("foo", FlowExecutionStatus.FAILED);
		assertTrue("Should be negative", first.compareTo(second)<0);
		assertTrue("Should be positive", second.compareTo(first)>0);
		assertEquals(FlowExecutionStatus.FAILED, aggregator.aggregate(Arrays.asList(first, second)));
	}

	@Test
	public void testEmpty() throws Exception {
		assertEquals(FlowExecutionStatus.UNKNOWN, aggregator.aggregate(Collections.<FlowExecution> emptySet()));
	}

}
