import org.apache.ibatis.cache.decorators.ScheduledCache; //导入依赖的package包/类
@Test
public void shouldDemonstrateEqualsAndHashCodeForVariousCacheTypes() {
  PerpetualCache cache = new PerpetualCache("test_cache");
  assertTrue(cache.equals(cache));
  assertTrue(cache.equals(new SynchronizedCache(cache)));
  assertTrue(cache.equals(new SerializedCache(cache)));
  assertTrue(cache.equals(new LoggingCache(cache)));
  assertTrue(cache.equals(new ScheduledCache(cache)));

  assertEquals(cache.hashCode(), new SynchronizedCache(cache).hashCode());
  assertEquals(cache.hashCode(), new SerializedCache(cache).hashCode());
  assertEquals(cache.hashCode(), new LoggingCache(cache).hashCode());
  assertEquals(cache.hashCode(), new ScheduledCache(cache).hashCode());

  Set<Cache> caches = new HashSet<Cache>();
  caches.add(cache);
  caches.add(new SynchronizedCache(cache));
  caches.add(new SerializedCache(cache));
  caches.add(new LoggingCache(cache));
  caches.add(new ScheduledCache(cache));
  assertEquals(1, caches.size());
}
 

import org.apache.ibatis.cache.decorators.ScheduledCache; //导入依赖的package包/类
@Test
public void test_ScheduledCache() throws Throwable {
	ScheduledCache scheduledCache = new ScheduledCache(new PerpetualCache("test_ScheduledCache"));
	scheduledCache.setClearInterval(3000);
	assertThat(scheduledCache.getSize(), equalTo(0));
	scheduledCache.putObject("name", "doctor");
	scheduledCache.putObject("age", 6000);

	assertThat(scheduledCache.getSize(), equalTo(2));

	TimeUnit.SECONDS.sleep(4);

	assertThat(scheduledCache.getSize(), equalTo(0));

}