/**
 * Logback: the reliable, generic, fast and flexible logging framework.
 * Copyright (C) 1999-2011, QOS.ch. All rights reserved.
 *
 * This program and the accompanying materials are dual-licensed under
 * either the terms of the Eclipse Public License v1.0 as published by
 * the Eclipse Foundation
 *
 *   or (per the licensee's choosing)
 *
 * under the terms of the GNU Lesser General Public License version 2.1
 * as published by the Free Software Foundation.
 */
package ch.qos.logback.core.net.ssl;

import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.fail;

import java.security.NoSuchAlgorithmException;
import java.security.NoSuchProviderException;
import java.security.SecureRandom;

import org.junit.Test;

import ch.qos.logback.core.net.ssl.SSL;
import ch.qos.logback.core.net.ssl.SecureRandomFactoryBean;


/**
 * Unit tests for {@link SecureRandomFactoryBean}.
 *
 * @author Carl Harris
 */
public class SecureRandomFactoryBeanTest {

  private SecureRandomFactoryBean factoryBean = new SecureRandomFactoryBean();
  
  @Test
  public void testDefaults() throws Exception {
    assertNotNull(factoryBean.createSecureRandom());
  }

  @Test
  public void testExplicitProvider() throws Exception {
    SecureRandom secureRandom = SecureRandom.getInstance(
        SSL.DEFAULT_SECURE_RANDOM_ALGORITHM);
    factoryBean.setProvider(secureRandom.getProvider().getName());
    assertNotNull(factoryBean.createSecureRandom());    
  }

  @Test
  public void testUnknownProvider() throws Exception {
    factoryBean.setProvider(SSLTestConstants.FAKE_PROVIDER_NAME);
    try {
      factoryBean.createSecureRandom();
      fail("expected NoSuchProviderException");
    }
    catch (NoSuchProviderException ex) {
      assertTrue(ex.getMessage().contains(SSLTestConstants.FAKE_PROVIDER_NAME));
    }
  }

  @Test
  public void testUnknownAlgorithm() throws Exception {
    factoryBean.setAlgorithm(SSLTestConstants.FAKE_ALGORITHM_NAME);
    try {
      factoryBean.createSecureRandom();
      fail("expected NoSuchAlgorithmException");
    }
    catch (NoSuchAlgorithmException ex) {
      assertTrue(ex.getMessage().contains(SSLTestConstants.FAKE_ALGORITHM_NAME));
    }
  }

}
