/*
    * 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.services.persistence.generic;
  
  import static org.junit.Assert.assertEquals;
  import static org.junit.Assert.assertTrue;
  
  import java.util.HashSet;
  import java.util.Set;
  
  import org.junit.Test;
  
  import ch.elca.el4j.services.persistence.generic.primarykey.PrimaryKeyGenerator;
  import ch.elca.el4j.services.persistence.generic.primarykey.UuidPrimaryKeyGenerator;
  
  // Checkstyle: MagicNumber off
  
  /**
   * This is the unit test for <code>UuidPrimaryKeyGenerator</code>.
   *
   * @svnLink $Revision: 3884 $;$Date: 2009-08-04 15:48:31 +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/services/persistence/generic/UuidPrimaryKeyGeneratorTest.java $
   *
   * @author Jacques-Olivier Haenni (JOH)
   */
  public class UuidPrimaryKeyGeneratorTest {
  	/**
  	 * Tests the key size.
  	 */
  	@Test
  	public void testKeySize() {
  		String key = getPrimaryKeyGenerator().getPrimaryKey();
  		assertEquals("The size of the PK is not correct.", 32, key.length());
  	}
  
  	/**
  	 * Tests whether generated keys are unique.
  	 */
  	@Test
  	public void testKeyUnicity() {
  		PrimaryKeyGenerator pkg = getPrimaryKeyGenerator();
  		Set<String> set = new HashSet<String>();
  		int count = 2000;
  		for (int i = 0; i < count; i++) {
  			set.add(pkg.getPrimaryKey());
  		}
  		assertEquals("Some generated keys were equals.", count, set.size());
  	}
  
  	/**
  	 * Checks the keys' format.
  	 *
  	 */
  	@Test
  	public void testKeyFormat() {
  		PrimaryKeyGenerator pkg = getPrimaryKeyGenerator();
  		int count = 2000;
  		for (int i = 0; i < count; i++) {
  			String key = pkg.getPrimaryKey();
  			assertEquals("The size of the PK is not correct.",
  					32, key.length());
  			assertTrue("The key contains spaces.", key.indexOf(' ') == -1);
  		}
  	}
  
  	/**
  	 * @return Returns a new key generator instance.
  	 */
  	private PrimaryKeyGenerator getPrimaryKeyGenerator() {
  		return new UuidPrimaryKeyGenerator();
  	}
  }
  //Checkstyle: MagicNumber on