/*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/*
* Copyright (C) 2006 University of Waikato
*/
package weka.core;
import junit.framework.Test;
import junit.framework.TestCase;
import junit.framework.TestSuite;
/**
* Tests Range. Run from the command line with:<p/>
* java weka.core.RangeTest
*
* @author FracPete (fracpete at waikato dot ac dot nz)
* @version $Revision: 1.1 $
*/
public class RangeTest
extends TestCase {
/**
* Constructs the <code>RangeTest</code>.
*
* @param name the name of the test class
*/
public RangeTest(String name) {
super(name);
}
/**
* Called by JUnit before each test method.
*
* @throws Exception if an error occurs
*/
protected void setUp() throws Exception {
super.setUp();
}
/** Called by JUnit after each test method */
protected void tearDown() throws Exception {
super.tearDown();
}
/**
* returns a configured Range
*
* @param initial the initial string, if null the default constructor
* is used (and "1" is set - otherwise setUpper doesn't
* work!)
* @param upper the upper limit
*/
protected Range getRange(String initial, int upper) {
Range result;
if (initial == null) {
result = new Range();
result.setRanges("1");
result.setUpper(upper);
}
else {
result = new Range(initial);
result.setUpper(upper);
}
return result;
}
/**
* test the default constructor
*/
public void testDefaultConstructor() throws Exception {
int upper = 10;
int indexInt = 0;
String indexStr = "" + (indexInt + 1);
Range index = new Range();
index.setRanges(indexStr);
index.setUpper(upper);
assertEquals(indexStr, index.getRanges());
assertEquals(1, index.getSelection().length);
assertEquals(indexInt, index.getSelection()[0]);
}
/**
* tests the constructor with initial value
*/
public void testInitialValueConstructor() throws Exception {
int upper = 10;
int indexInt = 0;
String indexStr = "" + (indexInt + 1);
Range index = getRange("1", upper);
assertEquals(indexStr, index.getRanges());
assertEquals(1, index.getSelection().length);
assertEquals(indexInt, index.getSelection()[0]);
}
/**
* tests whether "first" is interpreted correctly
*/
public void testFirst() throws Exception {
int upper = 10;
Range index = getRange("first", upper);
assertEquals("first", index.getRanges());
assertEquals(1, index.getSelection().length);
assertEquals(0, index.getSelection()[0]);
}
/**
* tests whether "last" is interpreted correctly
*/
public void testLast() throws Exception {
int upper = 10;
Range index = getRange("last", upper);
assertEquals("last", index.getRanges());
assertEquals(1, index.getSelection().length);
assertEquals(upper, index.getSelection()[0]);
}
/**
* tests whether "first-last" is interpreted correctly
*/
public void testFirstLast() throws Exception {
int upper = 10;
Range index = getRange("first-last", upper);
assertEquals("first-last", index.getRanges());
assertEquals(upper + 1, index.getSelection().length);
}
/**
* tests whether a simple "range" is interpreted correctly
*/
public void testSimpleRange() throws Exception {
int upper = 10;
String range = "1-3";
Range index = getRange(range, upper);
int[] expected = new int[]{0,1,2};
assertEquals(range, index.getRanges());
assertEquals(expected.length, index.getSelection().length);
for (int i = 0; i < expected.length; i++)
assertEquals(expected[i], index.getSelection()[i]);
}
/**
* tests whether a mixed "range" is interpreted correctly
*/
public void testMixedRange() throws Exception {
int upper = 10;
String range = "1-3,6,8-last";
Range index = getRange(range, upper);
int[] expected = new int[]{0,1,2,5,7,8,9,10};
assertEquals(range, index.getRanges());
assertEquals(expected.length, index.getSelection().length);
for (int i = 0; i < expected.length; i++)
assertEquals(expected[i], index.getSelection()[i]);
}
/**
* tests whether an unordered "range" is interpreted correctly
*/
public void testUnorderedRange() throws Exception {
int upper = 10;
String range = "8-last,1-3,6";
Range index = getRange(range, upper);
int[] expected = new int[]{7,8,9,10,0,1,2,5};
assertEquals(range, index.getRanges());
assertEquals(expected.length, index.getSelection().length);
for (int i = 0; i < expected.length; i++)
assertEquals(expected[i], index.getSelection()[i]);
}
public static Test suite() {
return new TestSuite(RangeTest.class);
}
public static void main(String[] args){
junit.textui.TestRunner.run(suite());
}
}