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/**
* Copyright (c) 2004-2011 QOS.ch
* All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
*/
package org.slf4j.migrator.helper;
import org.slf4j.migrator.helper.Abbreviator;
import junit.framework.TestCase;
public class AbbreviatorTest extends TestCase {
static final char FS = '/';
static final String INPUT_0 = "/abc/123456/ABC";
static final String INPUT_1 = "/abc/123456/xxxxx/ABC";
RandomHelper rh = new RandomHelper(FS);
public AbbreviatorTest(String arg0) {
super(arg0);
}
protected void setUp() throws Exception {
super.setUp();
}
protected void tearDown() throws Exception {
super.tearDown();
}
public void testSmoke() {
{
Abbreviator abb = new Abbreviator(2, 100, FS);
String r = abb.abbreviate(INPUT_0);
assertEquals(INPUT_0, r);
}
{
Abbreviator abb = new Abbreviator(3, 8, FS);
String r = abb.abbreviate(INPUT_0);
assertEquals("/abc/.../ABC", r);
}
{
Abbreviator abb = new Abbreviator(3, 8, FS);
String r = abb.abbreviate(INPUT_0);
assertEquals("/abc/.../ABC", r);
}
}
public void testImpossibleToAbbreviate() {
Abbreviator abb = new Abbreviator(2, 20, FS);
String in = "iczldqwivpgm/mgrmvbjdxrwmqgprdjusth";
String r = abb.abbreviate(in);
assertEquals(in, r);
}
public void testNoFS() {
Abbreviator abb = new Abbreviator(2, 100, FS);
String r = abb.abbreviate("hello");
assertEquals("hello", r);
}
public void testZeroPrefix() {
{
Abbreviator abb = new Abbreviator(0, 100, FS);
String r = abb.abbreviate(INPUT_0);
assertEquals(INPUT_0, r);
}
}
public void testTheories() {
int MAX_RANDOM_FIXED_LEN = 20;
int MAX_RANDOM_AVG_LEN = 20;
int MAX_RANDOM_MAX_LEN = 100;
for (int i = 0; i < 10000; i++) {
// System.out.println("Test number " + i);
// 0 <= fixedLen < MAX_RANDOM_FIXED_LEN
int fixedLen = rh.nextInt(MAX_RANDOM_FIXED_LEN);
// 5 <= averageLen < MAX_RANDOM_AVG_LEN
int averageLen = rh.nextInt(MAX_RANDOM_AVG_LEN) + 3;
// System.out.println("fixedLen="+fixedLen+", averageLen="+averageLen);
int maxLen = rh.nextInt(MAX_RANDOM_MAX_LEN) + fixedLen;
if (maxLen <= 1) {
continue;
}
// System.out.println("maxLen="+maxLen);
int targetLen = (maxLen / 2) + rh.nextInt(maxLen / 2) + 1;
if (targetLen > maxLen) {
targetLen = maxLen;
}
String filename = rh.buildRandomFileName(averageLen, maxLen);
Abbreviator abb = new Abbreviator(fixedLen, targetLen, FS);
String result = abb.abbreviate(filename);
assertTheory0(averageLen, filename, result, fixedLen, targetLen);
assertUsefulness(averageLen, filename, result, fixedLen, targetLen);
assertTheory1(filename, result, fixedLen, targetLen);
assertTheory2(filename, result, fixedLen, targetLen);
}
}
// result length is smaller than original length
void assertTheory0(int averageLen, String filename, String result, int fixedLen, int targetLength) {
assertTrue("filename=[" + filename + "] result=[" + result + "]", result.length() <= filename.length());
}
// if conditions allow, result length should be to target length
void assertUsefulness(int averageLen, String filename, String result, int fixedLen, int targetLength) {
int resLen = result.length();
int margin = averageLen * 4;
if (targetLength > fixedLen + margin) {
assertTrue("filename=[" + filename + "], result=[" + result + "] resultLength=" + resLen + " fixedLength=" + fixedLen + ", targetLength="
+ targetLength + ", avgLen=" + averageLen, result.length() <= targetLength + averageLen);
}
}
// result start with prefix found in filename
void assertTheory1(String filename, String result, int fixedLen, int targetLength) {
String prefix = filename.substring(0, fixedLen);
assertTrue(result.startsWith(prefix));
}
// The string /.../ is found in the result once at a position higher
// than fixedLen
void assertTheory2(String filename, String result, int fixedLen, int targetLength) {
if (filename == result) {
return;
}
int fillerIndex = result.indexOf(Abbreviator.FILLER);
assertTrue(fillerIndex >= fixedLen);
}
}
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