/*
 * 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.jsr.configuration.xml;

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

import javax.batch.api.Decider;
import javax.batch.runtime.StepExecution;

import org.junit.Before;
import org.junit.Test;
import org.springframework.batch.core.Step;
import org.springframework.batch.core.jsr.step.DecisionStep;

public class DecisionStepFactoryBeanTests {

	private DecisionStepFactoryBean factoryBean;

	@Before
	public void setUp() throws Exception {
		factoryBean = new DecisionStepFactoryBean();
	}

	@Test
	public void testGetObjectType() {
		assertEquals(DecisionStep.class, factoryBean.getObjectType());
	}

	@Test
	public void testIsSingleton() {
		assertTrue(factoryBean.isSingleton());
	}

	@Test(expected=IllegalArgumentException.class)
	public void testNullDeciderAndName() throws Exception {
		factoryBean.afterPropertiesSet();
	}

	@Test(expected=IllegalArgumentException.class)
	public void testNullDecider() throws Exception{
		factoryBean.setName("state1");
		factoryBean.afterPropertiesSet();
	}

	@Test(expected=IllegalArgumentException.class)
	public void testNullName() throws Exception {
		factoryBean.setDecider(new DeciderSupport());
		factoryBean.afterPropertiesSet();
	}

	@Test
	public void testDeciderDeciderState() throws Exception {
		factoryBean.setDecider(new DeciderSupport());
		factoryBean.setName("IL");

		factoryBean.afterPropertiesSet();

		Step step = factoryBean.getObject();

		assertEquals("IL", step.getName());
		assertEquals(DecisionStep.class, step.getClass());
	}

	public static class DeciderSupport implements Decider {

		@Override
		public String decide(StepExecution[] executions) throws Exception {
			return null;
		}
	}
}