/*
    * Licensed to the Apache Software Foundation (ASF) under one
    * or more contributor license agreements.  See the NOTICE file
    * distributed with this work for additional information
    * regarding copyright ownership.  The ASF licenses this file
    * to you 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.apache.shiro.authc;
  
  import static org.junit.Assert.assertEquals;
  
  import java.util.ArrayList;
  import java.util.Collection;
  import java.util.HashSet;
  import java.util.Iterator;
  import java.util.List;
  import java.util.Set;
  
  import org.apache.shiro.subject.PrincipalCollection;
  import org.junit.Test;
  
  
  /**
   * @since 0.9
   */
  public class SimpleAuthenticationInfoTest {
  
      @Test
      public void testMergeWithEmptyInstances() {
          SimpleAuthenticationInfo aggregate = new SimpleAuthenticationInfo();
          SimpleAuthenticationInfo local = new SimpleAuthenticationInfo();
          aggregate.merge(local);
      }
  
      /**
       * Verifies fix for JSEC-122
       */
      @Test
      public void testMergeWithAggregateNullCredentials() {
          SimpleAuthenticationInfo aggregate = new SimpleAuthenticationInfo();
          SimpleAuthenticationInfo local = new SimpleAuthenticationInfo("username", "password", "testRealm");
          aggregate.merge(local);
      }
      
      @SuppressWarnings("serial")
      @Test
      public void testMergeWithImmutablePrincipalCollection() {
          SimpleAuthenticationInfo aggregate = new SimpleAuthenticationInfo();
          // Make a quick test fixture that does *not* implement MutablePrincipalCollection 
          PrincipalCollection principalCollection = new PrincipalCollection() {
  	    @SuppressWarnings("unchecked")
  	    public List asList() { return null;}
  	    @SuppressWarnings("unchecked")
  	    public Set asSet() {return null;}
  	    public <T> Collection<T> byType(Class<T> type) {return null;}
  	    @SuppressWarnings("unchecked")
  	    public Collection fromRealm(String realmName) {
  		Collection<Object> principals = new HashSet<Object>();
  		principals.add("testprincipal");
  		return principals;
  	    }
  	    public Object getPrimaryPrincipal() {return null;}
  	    public Set<String> getRealmNames() {
  		Set<String> realms = new HashSet<String>();
  		realms.add("testrealm");
  		return realms;
  	    }
  	    public boolean isEmpty() {return false;}
  	    public <T> T oneByType(Class<T> type) {return null;}
  	    @SuppressWarnings("unchecked")
  	    public Iterator iterator() {return null;}
              
          };
          aggregate.setPrincipals(principalCollection);
          SimpleAuthenticationInfo local = new SimpleAuthenticationInfo("username", "password", "testRealm");
          aggregate.merge(local);
          assertEquals(2, aggregate.getPrincipals().asList().size());
      }
      
  }