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package com.jidesoft.utils;
import junit.framework.TestCase;
import java.util.ArrayList;
public class TestCachedArrayList extends TestCase {
CachedArrayList cachedList;
ActiveCachedArrayList activeCachedList;
ArrayList list;
public static final int SIZE = 1000;
@Override
protected void setUp() throws Exception {
super.setUp();
long before, after;
list = new ArrayList();
before = System.nanoTime();
for (int i = 0; i < SIZE; i++) {
list.add(0, String.valueOf(i));
}
after = System.nanoTime();
System.out.println("Creating ArrayList of length " + SIZE
+ " took " + String.valueOf((after - before) / SIZE) + "ms");
cachedList = new CachedArrayList();
// cachedList.setLazyCaching(true);
before = System.nanoTime();
for (int i = 0; i < SIZE; i++) {
cachedList.add(0, String.valueOf(i));
}
after = System.nanoTime();
System.out.println("Creating CachedArrayList of length " + SIZE
+ " took " + String.valueOf((after - before) / SIZE) + "ms");
activeCachedList = new ActiveCachedArrayList();
// activeCachedList.setLazy(true);
before = System.nanoTime();
for (int i = 0; i < SIZE; i++) {
activeCachedList.add(0, String.valueOf(i));
}
after = System.nanoTime();
System.out.println("Creating ActiveCachedArrayList of length " + SIZE
+ " took " + String.valueOf((after - before) / SIZE) + "ms");
System.out.println();
}
public void testIndexOf() {
assertEquals(cachedList.indexOf(cachedList.get(SIZE - 1)), list.indexOf(list.get(SIZE - 1)));
assertEquals(cachedList.indexOf(cachedList.get(1)), list.indexOf(list.get(1)));
cachedList.invalidateCache();
}
public void testIndexOfPerformance() {
long before, after;
//
before = System.nanoTime();
for (int i = 0; i < SIZE; i++) {
list.indexOf("" + i);
}
after = System.nanoTime();
System.out.println("1st Normal: indexof of length " + SIZE
+ " took " + String.valueOf((after - before) / 1000000) + "ms");
before = System.nanoTime();
// cachedList.cacheAll();
for (int i = 0; i < SIZE; i++) {
cachedList.indexOf("" + i);
}
after = System.nanoTime();
System.out.println("1st Cached: indexof of length " + SIZE
+ " took " + String.valueOf((after - before) / 1000000) + "ms");
before = System.nanoTime();
// activeCachedList.recache();
for (int i = 0; i < SIZE; i++) {
activeCachedList.indexOf("" + i);
}
after = System.nanoTime();
System.out.println("1st Active: indexof of length " + SIZE
+ " took " + String.valueOf((after - before) / 1000000) + "ms");
//
System.out.println();
before = System.nanoTime();
for (int i = 0; i < SIZE; i++) {
list.indexOf("" + i);
}
after = System.nanoTime();
System.out.println("2nd Normal: indexOf ArrayList of length " + SIZE
+ " took " + String.valueOf((after - before) / 1000000) + "ms");
before = System.nanoTime();
for (int i = 0; i < SIZE; i++) {
cachedList.indexOf("" + i);
}
after = System.nanoTime();
System.out.println("2nd Cached: indexOf ArrayList of length " + SIZE
+ " took " + String.valueOf((after - before) / 1000000) + "ms");
cachedList.invalidateCache();
before = System.nanoTime();
for (int i = 0; i < SIZE; i++) {
activeCachedList.indexOf("" + i);
}
after = System.nanoTime();
System.out.println("2nd Active: indexOf ArrayList of length " + SIZE
+ " took " + String.valueOf((after - before) / 1000000) + "ms");
System.out.println();
}
public void testAddRemove() {
CachedArrayList<String> list = new CachedArrayList();
list.setLazyCaching(false);
list.add("1");
list.add("2");
list.add("3");
assertEquals(3, list.size());
list.add("3");
assertEquals(4, list.size());
assertEquals(2, list.indexOf("3"));
list.add(1, "3");
assertEquals(5, list.size());
assertEquals(1, list.indexOf("3"));
list.clear();
assertEquals(0, list.size());
list.setLazyCaching(true);
list.add("1");
list.add("2");
list.add("3");
assertEquals(3, list.size());
list.add("3");
assertEquals(4, list.size());
assertEquals(2, list.indexOf("3"));
list.add(1, "3");
assertEquals(5, list.size());
assertEquals(1, list.indexOf("3"));
list.clear();
assertEquals(0, list.size());
}
}
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