/*
    * EL4J, the Extension Library for the J2EE, adds incremental enhancements to
    * the spring framework, http://el4j.sf.net
    * Copyright (C) 2005 by ELCA Informatique SA, Av. de la Harpe 22-24,
    * 1000 Lausanne, Switzerland, http://www.elca.ch
    *
    * EL4J is published under the GNU Lesser General Public License (LGPL)
    * Version 2.1. See http://www.gnu.org/licenses/
    *
   * This program is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
   * GNU Lesser General Public License for more details.
   *
   * For alternative licensing, please contact info@elca.ch
   */
  
  package ch.elca.el4j.tests.core.beans;
  
  import static org.junit.Assert.assertEquals;
  import static org.junit.Assert.assertTrue;
  
  import java.util.Map;
  
  import org.junit.Test;
  import org.springframework.context.ApplicationContext;
  
  import ch.elca.el4j.core.beans.BeanLocator;
  import ch.elca.el4j.core.context.ModuleApplicationContext;
  
  /**
   * This test tests the <code>BeanLocator</code> class.
   *
   * @svnLink $Revision: 3873 $;$Date: 2009-08-04 13:59:45 +0200 (Di, 04. Aug 2009) $;$Author: swismer $;$URL: https://el4j.svn.sourceforge.net/svnroot/el4j/branches/el4j_3_1/el4j/framework/modules/core/src/test/java/ch/elca/el4j/tests/core/beans/BeanLocatorTest.java $
   *
   * @author Martin Zeltner (MZE)
   */
  public class BeanLocatorTest {
  	
  	/** The application context. */
  	final ApplicationContext m_appContext;
  
  	/**
  	 * Default constructor.
  	 */
  	public BeanLocatorTest() {
  		m_appContext = new ModuleApplicationContext(
  			"classpath:scenarios/core/beans/*.xml", false);
  	}
  
  	/**
  	 * This test locates classes of specific types.
  	 */
  	@Test
  	public void testLocateClassesOfSpecificTypes() {
  		BeanLocator beanLocator = (BeanLocator) m_appContext
  				.getBean("locateClassesOfSpecificTypes");
  		Map beans = beanLocator.getBeans();
  		String[] expectedBeans = new String[] {"classB1", "classB2",
  			"classB3", "fourthB", "classC", "secondC", "thirdC", "classW1",
  			"classW2", "thirdW"};
  		checkIfAllExpectedBeansAreInMap(beans, expectedBeans);
  	}
  
  	/**
  	 * This test locates classes of specific types and excludes some beans.
  	 */
  	@Test
  	public void testLocateClassesOfSpecificTypesPlusExcludeList() {
  		BeanLocator beanLocator = (BeanLocator) m_appContext
  				.getBean("locateClassesOfSpecificTypesPlusExcludeList");
  		Map beans = beanLocator.getBeans();
  		String[] expectedBeans = new String[] {"fourthB", "secondC", "thirdC",
  			"thirdW"};
  		checkIfAllExpectedBeansAreInMap(beans, expectedBeans);
  	}
  
  	/**
  	 * This test locates classes of specific types and includes some beans.
  	 */
  	@Test
  	public void testLocateClassesOfSpecificTypesPlusIncludeList() {
  		BeanLocator beanLocator = (BeanLocator) m_appContext
  				.getBean("locateClassesOfSpecificTypesPlusIncludeList");
  		Map beans = beanLocator.getBeans();
  		String[] expectedBeans = new String[] {"classC", "secondC", "thirdC",
  			"thirdW"};
  		checkIfAllExpectedBeansAreInMap(beans, expectedBeans);
  	}
  
  	/**
  	 * This test locates classes of specific types and includes and excludes
  	 * some beans.
  	 */
  	@Test
  	public void testLocateClassesOfSpecificTypesPlusIncludeAndExcludeList() {
  		BeanLocator beanLocator = (BeanLocator) m_appContext.getBean(
  				"locateClassesOfSpecificTypesPlusIncludeAndExcludeList");
  		Map beans = beanLocator.getBeans();
 		String[] expectedBeans = new String[] {"classB2", "classB3", "classC",
 			"secondC", "thirdC", "firstV", "classW2"};
 
 		checkIfAllExpectedBeansAreInMap(beans, expectedBeans);
 	}
 
 	/**
 	 * This method checks if a map contains the right number of beans and if the
 	 * expected beans are present in the given map.
 	 *
 	 * @param beans
 	 *            Are the beans found by <code>BeanLocator</code>
 	 * @param expectedBeans
 	 *            Are names of the expected beans.
 	 */
 	private void checkIfAllExpectedBeansAreInMap(Map beans,
 			String[] expectedBeans) {
 		int expectedNumberOfBeans = (expectedBeans != null
 				? expectedBeans.length : 0);
 		assertEquals("There is not the expected number of beans.",
 				expectedNumberOfBeans, beans.size());
 
 		for (int i = 0; i < expectedNumberOfBeans; i++) {
 			String beanName = expectedBeans[i];
 			assertTrue("Bean with name '" + beanName
 					+ "' is not present in map.", beans.containsKey(beanName));
 		}
 	}
 }