/**
    * Copyright 2010 The Kuali Foundation Licensed under the
    * Educational Community 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.osedu.org/licenses/ECL-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.kuali.student.common.util;
  
  import junit.framework.Assert;
  
  import org.junit.Before;
  import org.junit.Test;
  
  public class TestLRUMap {
  
  	private LRUMap<String,String> cache;
  
  	@Before
  	public void setup() {
  		cache = new LRUMap<String,String>(3);
  		cache.put("key-1", "value-1");
  		cache.put("key-2", "value-2");
  		cache.put("key-3", "value-3");
  	}
  	
  	@Test
  	public void testDefaultMaximumEntries() throws Exception {
  		cache = new LRUMap<String,String>();
  		for(int i=0; i<60; i++) {
  			cache.put("key-"+i, "value-"+i);
  		}
  		Assert.assertEquals(50, cache.size());
  	}
  
  	@Test
  	public void testRemoveEldestEntry() throws Exception {
  		cache.put("key-4", "value-4");
  		Assert.assertEquals(3, cache.size());
  		Assert.assertNull(cache.get("key-1"));
  	}
  	
  }