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  package org.apache.cayenne.cache;
  
  import org.apache.cayenne.query.MockQueryMetadata;
  import org.apache.cayenne.util.Util;
  import org.junit.Test;
  
  import java.util.ArrayList;
  
  import static org.junit.Assert.assertEquals;
  import static org.junit.Assert.assertNotNull;
  
  public class MapQueryCacheTest {
  
      @Test
      public void testSerializability() throws Exception {
  
          MapQueryCache cache = new MapQueryCache(5);
          cache.put(new MockQueryMetadata() {
  
              @Override
              public String getCacheKey() {
                  return "key";
              }
          }, new ArrayList<Object>());
  
          assertEquals(1, cache.size());
  
          MapQueryCache deserialized = (MapQueryCache) Util.cloneViaSerialization(cache);
          assertNotNull(deserialized);
          assertEquals(1, deserialized.size());
      }
  }
  