pjs/grendel/calypso/util/SelfTestIDMap.java

79 строки
2.6 KiB
Java

/* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil -*-
*
* The contents of this file are subject to the Mozilla Public License
* Version 1.0 (the "License"); you may not use this file except in
* compliance with the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS"
* basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
* the License for the specific language governing rights and limitations
* under the License.
*
* The Original Code is the Grendel mail/news client.
*
* The Initial Developer of the Original Code is Netscape Communications
* Corporation. Portions created by Netscape are Copyright (C) 1997
* Netscape Communications Corporation. All Rights Reserved.
*/
package calypso.util;
class SelfTestIDMap {
public static void run()
throws SelfTestException
{
int count = 20000;
int[] ids = new int[count];
String[] strings = new String[count];
for (int i = 0; i < count; i++) {
strings[i] = asciify(i);
}
// Fill the map
long start = System.currentTimeMillis();
IDMap map = new IDMap();
for (int i = 0; i < count; i++) {
ids[i] = map.stringToID(strings[i]);
}
long end = System.currentTimeMillis();
System.out.println("stringToID: took " + (end - start) + "ms");
// Test the map
start = System.currentTimeMillis();
for (int i = 0; i < count; i++) {
int id = map.stringToID(strings[i]);
if (ids[i] != id) {
throw new SelfTestException("whoops: id=" + id + " ids[i]=" + ids[i]);
}
}
end = System.currentTimeMillis();
System.out.println("stringToID: took " + (end - start) + "ms");
start = System.currentTimeMillis();
for (int i = 0; i < count; i++) {
String s = map.stringToString(strings[i]);
if (s != strings[i]) {
throw new SelfTestException("whoops: s=" + s + " strings[i]=" + strings[i]);
}
}
end = System.currentTimeMillis();
System.out.println("stringToString: took " + (end - start) + "ms");
// Verify that id's map back to strings properly
start = System.currentTimeMillis();
for (int i = 0; i < count; i++) {
String s = map.idToString(ids[i]);
if (!s.equals(strings[i])) {
throw new SelfTestException("whoops: s=" + s + " strings[i]=" + strings[i]);
}
}
end = System.currentTimeMillis();
System.out.println("idToString: took " + (end - start) + "ms");
}
static String asciify(int i) {
return Integer.toString(i, 16);
}
}