package org.apache.commons.jcs3.access;
   
   /*
    * 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.
   */
  
  import java.util.Set;
  
  import org.apache.commons.jcs3.JCS;
  import org.apache.commons.jcs3.access.exception.CacheException;
  
  import junit.framework.TestCase;
  
  /**
   * Tests the methods of the group cache access class.
   */
  public class GroupCacheAccessUnitTest
      extends TestCase
  {
      /**
       * Verify that we can put and get an object
       * @throws Exception
       */
      public void testPutAndGet()
          throws Exception
      {
          final GroupCacheAccess<String, String> access = JCS.getGroupCacheInstance( "test" );
          assertNotNull( "We should have an access class", access );
  
          final String key = "mykey";
          final String group = "mygroup";
          final String value = "myvalue";
  
          access.putInGroup(key, group, value);
  
          final String returnedValue1 = access.getFromGroup(key, group);
          assertEquals( "Wrong value returned.", value, returnedValue1 );
      }
  
      /**
       * Try to put a null key and verify that we get an exception.
       * @throws Exception
       */
      public void testPutNullKey()
          throws Exception
      {
          final GroupCacheAccess<String, String> access = JCS.getGroupCacheInstance( "test" );
          assertNotNull( "We should have an access class", access );
  
          final String key = null;
          final String group = "mygroup";
          final String value = "myvalue";
  
          try
          {
              access.putInGroup(key, group, value);
              fail( "Should not have been able to put a null key." );
          }
          catch ( final CacheException e )
          {
              assertTrue( "Should have the word null in the error message.", e.getMessage().indexOf( "null" ) != -1 );
          }
      }
  
      /**
       * Try to put a null value and verify that we get an exception.
       * @throws Exception
       */
      public void testPutNullValue()
          throws Exception
      {
          final GroupCacheAccess<String, String> access = JCS.getGroupCacheInstance( "test" );
          assertNotNull( "We should have an access class", access );
  
          final String key = "myKey";
          final String group = "mygroup";
          final String value = null;
  
          try
          {
              access.putInGroup(key, group, value);
              fail( "Should not have been able to put a null object." );
          }
          catch ( final CacheException e )
         {
             assertTrue( "Should have the word null in the error message.", e.getMessage().indexOf( "null" ) != -1 );
         }
     }
 
     /**
      * Verify that we can remove items from the cache
      * @throws Exception
      */
     public void testRemove()
         throws Exception
     {
         final GroupCacheAccess<String, String> access = JCS.getGroupCacheInstance( "test" );
         assertNotNull( "We should have an access class", access );
 
         final String key = "mykey";
         final String group = "mygroup";
         final String value = "myvalue";
 
         for (int i = 0; i < 10; i++)
         {
             access.putInGroup(key + i, group, value + i);
         }
 
         // Make sure cache contains some data
         for (int i = 0; i < 10; i++)
         {
             final String returnedValue1 = access.getFromGroup(key + i, group);
             assertEquals( "Wrong value returned.", value + i, returnedValue1 );
         }
 
         access.removeFromGroup(key + 0, group);
 
         assertNull("Should not be in cache", access.getFromGroup(key + 0, group));
 
         for (int i = 1; i < 10; i++)
         {
             final String returnedValue1 = access.getFromGroup(key + i, group);
             assertEquals( "Wrong value returned.", value + i, returnedValue1 );
         }
     }
 
     /**
      * Verify that we can invalidate the group
      * @throws Exception
      */
     public void testInvalidate()
         throws Exception
     {
         final GroupCacheAccess<String, String> access = JCS.getGroupCacheInstance( "test" );
         assertNotNull( "We should have an access class", access );
 
         final String key = "mykey";
         final String group = "mygroup";
         final String value = "myvalue";
 
         for (int i = 0; i < 10; i++)
         {
             access.putInGroup(key + i, group + 0, value + i);
         }
 
         for (int i = 0; i < 10; i++)
         {
             access.putInGroup(key + i, group + 1, value + i);
         }
 
         // Make sure cache contains some data
         for (int i = 0; i < 10; i++)
         {
             final String returnedValue1 = access.getFromGroup(key + i, group + 0);
             assertEquals( "Wrong value returned.", value + i, returnedValue1 );
             final String returnedValue2 = access.getFromGroup(key + i, group + 1);
             assertEquals( "Wrong value returned.", value + i, returnedValue2 );
         }
 
         access.invalidateGroup(group + 0);
 
         for (int i = 0; i < 10; i++)
         {
             assertNull("Should not be in cache", access.getFromGroup(key + i, group + 0));
         }
 
         for (int i = 0; i < 10; i++)
         {
             final String returnedValue1 = access.getFromGroup(key + i, group + 1);
             assertEquals( "Wrong value returned.", value + i, returnedValue1 );
         }
     }
 
     /**
      * Verify we can use the group cache.
      * <p>
      * @throws Exception
      */
     public void testGroupCache()
         throws Exception
     {
         final GroupCacheAccess<String, Integer> access = JCS.getGroupCacheInstance( "testGroup" );
         final String groupName1 = "testgroup1";
         final String groupName2 = "testgroup2";
 
         Set<String> keys1 = access.getGroupKeys( groupName1 );
         assertNotNull(keys1);
         assertEquals(0, keys1.size());
 
         Set<String> keys2 = access.getGroupKeys( groupName2 );
         assertNotNull(keys2);
         assertEquals(0, keys2.size());
 
         // DO WORK
         final int numToInsertGroup1 = 10;
         // insert with prefix1
         for ( int i = 0; i < numToInsertGroup1; i++ )
         {
             access.putInGroup(String.valueOf( i ), groupName1, Integer.valueOf( i ) );
         }
 
         final int numToInsertGroup2 = 50;
         // insert with prefix1
         for ( int i = 0; i < numToInsertGroup2; i++ )
         {
             access.putInGroup(String.valueOf( i ), groupName2, Integer.valueOf( i + 1 ) );
         }
 
         keys1 = access.getGroupKeys( groupName1 ); // Test for JCS-102
         assertNotNull(keys1);
         assertEquals("Wrong number returned 1:", 10, keys1.size());
 
         keys2 = access.getGroupKeys( groupName2 );
         assertNotNull(keys2);
         assertEquals("Wrong number returned 2:", 50, keys2.size());
 
         assertEquals(Integer.valueOf(5), access.getFromGroup("5", groupName1));
         assertEquals(Integer.valueOf(6), access.getFromGroup("5", groupName2));
 
         assertTrue(access.getGroupNames().contains(groupName1));
         assertTrue(access.getGroupNames().contains(groupName2));
     }
 }