@Test
public void test1() {
final FIFOCache<Integer, Integer> cache = new FIFOCache<Integer, Integer>(1);
Assert.assertEquals(0, cache.size());
cache.put(1, 1);
Assert.assertEquals(1, cache.size());
cache.put(2, 2);
Assert.assertEquals(1, cache.size());
Assert.assertEquals(2, cache.keySet().iterator().next().intValue());
}
@Test
public void test2() {
final FIFOCache<Integer, Integer> cache = new FIFOCache<Integer, Integer>(500);
int expectedCacheSize = 0;
Assert.assertEquals(expectedCacheSize, cache.size());
for (int i = 0; i < 500; ++i) {
cache.put(i, i);
Assert.assertEquals(++expectedCacheSize, cache.size());
}
cache.put(500, 500);
Assert.assertEquals(expectedCacheSize, cache.size());
final TreeMap<Integer, Integer> sortedMap = new TreeMap<Integer, Integer>(cache);
Assert.assertEquals(expectedCacheSize, sortedMap.size());
Assert.assertEquals(1, sortedMap.firstKey().intValue());
Assert.assertEquals(500, sortedMap.lastKey().intValue());
}