package thread.caches.lfu;
import org.junit.Test;
import thread.caches.KeyObject;
import thread.caches.UserOfCache;
import thread.caches.ValueObject;
import java.util.*;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
/**
* @author Sergiy Doroshenko
* email:webserg@gmail.com
* Date: 1/14/11 2:52 PM
*/
public class CacheTest {
List<ValueObject> storage = new ArrayList<ValueObject>();
@Test
public void simpleTest() {
fill();
UserOfCache.createInstance(new LeastFrequentlyUsed<KeyObject, ValueObject>(), storage);
int a = 0, b = 0, c = 0, d = 0;
for (int i = 0; i < 100; i++) {
if (i % 3 == 0) {
UserOfCache.get(new KeyObject(3 + ""));
a++;
}else if (i % 5 == 0) {
UserOfCache.get(new KeyObject(5 + ""));
b++;
}else if (i % 8 == 0) {
UserOfCache.get(new KeyObject(8 + ""));
c++;
} else {
UserOfCache.get(new KeyObject(i + ""));
d++;
}
}
System.out.println("a " + a);
System.out.println("b = " + b);
System.out.println("c = " + c);
System.out.println("d = " + d);
List<KeyObject> keys = UserOfCache.getAllCache();
KeyObject[] f = {new KeyObject("3"), new KeyObject("5"), new KeyObject("8")};
assertEquals(10, keys.size());
assertEquals( 3 + "", keys.get(9).getKey());
assertEquals( 5 + "", keys.get(8).getKey());
assertEquals( 8 + "", keys.get(7).getKey());
System.out.println(keys);
assertTrue(keys.containsAll(Arrays.asList(f)));
Queue<CountKey<KeyObject>> queue = new PriorityQueue<CountKey<KeyObject>>(10);
for (KeyObject k : keys) {
CountKey<KeyObject> countKey = new CountKey<KeyObject>(k);
if (k.getKey().equals("5")) countKey.incrementCount();
queue.offer(countKey);
}
System.out.println("------------------------------------");
System.out.println(queue);
CountKey countKey5 = new CountKey<KeyObject>(new KeyObject("5"));
countKey5.incrementCount();
CountKey countKey87 = new CountKey<KeyObject>(new KeyObject("86"));
assertEquals(1, countKey5.compareTo(countKey87));
}
private void fill() {
List<KeyObject> consumer = new ArrayList<KeyObject>();
storage = new ArrayList<ValueObject>();
Random random = new Random();
random.nextInt(100);
for (int i = 0; i < 100; i++) {
KeyObject keyObject = new KeyObject(i + "");
ValueObject valueObject = new ValueObject(keyObject, i + " data ");
storage.add(valueObject);
}
}
}