/*
* File: VectorEntryIndexComparatorTest.java
* Authors: Justin Basilico
* Company: Sandia National Laboratories
* Project: Cognitive Framework Lite
*
* Copyright July 31, 2006, Sandia Corporation. Under the terms of Contract
* DE-AC04-94AL85000, there is a non-exclusive license for use of this work by
* or on behalf of the U.S. Government. Export of this program may require a
* license from the United States Government. See CopyrightHistory.txt for
* complete details.
*
*
*/
package gov.sandia.cognition.math.matrix;
import java.util.Iterator;
import java.util.Random;
import junit.framework.*;
/**
* This class implements JUnit tests for the following classes:
*
* VectorEntryIndexComparator
*
* @author Justin Basilico
* @since 1.0
*/
public class VectorEntryIndexComparatorTest
extends TestCase
{
protected Random random = new Random();
public VectorEntryIndexComparatorTest(
String testName)
{
super(testName);
}
public static Test suite()
{
TestSuite suite = new TestSuite(VectorEntryIndexComparatorTest.class);
return suite;
}
/**
* Test of lowestIndex method, of class gov.sandia.isrc.math.matrix.VectorEntryIndexComparator.
*/
public void testLowestIndex()
{
Vector first = VectorFactory.getDefault().createUniformRandom(10, -1.0, 1.0, random);
Vector second = VectorFactory.getDefault().createUniformRandom(10, -1.0, 1.0, random);
VectorEntryIndexComparator instance = VectorEntryIndexComparator.INSTANCE;
Iterator<VectorEntry> it1 = first.iterator();
it1.next();
Iterator<VectorEntry> it2 = first.iterator();
it2.next();
it2.next();
it2.next();
VectorEntry entry1 = it1.next();
VectorEntry entry2 = it2.next();
assertEquals(EntryIndexComparator.Compare.BOTH_ENTRIES_NULL,
instance.lowestIndex(null, null));
assertEquals(EntryIndexComparator.Compare.ENTRIES_EQUAL,
instance.lowestIndex(entry1, entry1));
assertEquals(EntryIndexComparator.Compare.ENTRIES_EQUAL,
instance.lowestIndex(entry2, entry2));
assertEquals(EntryIndexComparator.Compare.FIRST_ENTRY_NULL,
instance.lowestIndex(null, entry2));
assertEquals(EntryIndexComparator.Compare.FIRST_LOWEST,
instance.lowestIndex(entry1, entry2));
assertEquals(EntryIndexComparator.Compare.SECOND_ENTRY_NULL,
instance.lowestIndex(entry1, null));
assertEquals(EntryIndexComparator.Compare.SECOND_LOWEST,
instance.lowestIndex(entry2, entry1));
}
}