/*
 * TiesEquivalentRankTest.java created on Aug 24, 2005 by jdgant01
 *
 */
package org.apache.commons.math.stat.mining;

import junit.framework.TestCase;

public class TiesEquivalentRankTest extends TestCase {
    private final double delta = 0.0;
    
    public static void main(String[] args) {}

    public TiesEquivalentRankTest(String arg0) {
        super(arg0);
    }

    protected void setUp() throws Exception {
        super.setUp();
    }

    protected void tearDown() throws Exception {
        super.tearDown();
    }
    
    public void testOne() {
        double [] rawScores = {2, 1, 3, 3, 5};
        double [] correctRanks = {2, 1, 3, 3, 4};
        TiesEquivalentRank ter = new TiesEquivalentRank();
        double [] ranks = ter.rank(rawScores);
        for(int i=0; i<correctRanks.length; i++) {
            assertEquals("TiesEquivalentRank TestOne", ranks[i], correctRanks[i], delta);
        }
    }
    
    public void testTwo() {
        double [] rawScores = {1, 4, 2, 2, 1};
        double [] correctRanks = {1, 3, 2, 2, 1};
        TiesEquivalentRank ter = new TiesEquivalentRank();
        double [] ranks = ter.rank(rawScores);
        for(int i=0; i<correctRanks.length; i++) {
            assertEquals("TiesEquivalentRank TestOne", ranks[i], correctRanks[i], delta);
        }
    }
    
    public void testThree() {
        double [] rawScores = {-11, -14, 2, -12, 1};
        double [] correctRanks = {3, 1, 5, 2, 4};
        TiesEquivalentRank ter = new TiesEquivalentRank();
        double [] ranks = ter.rank(rawScores);
        for(int i=0; i<correctRanks.length; i++) {
            assertEquals("TiesEquivalentRank TestOne", ranks[i], correctRanks[i], delta);
        }
    }
}