/**
* Copyright (C) 2009 - present by OpenGamma Inc. and the OpenGamma group of companies
*
* Please see distribution for license.
*/
package com.opengamma.util.tuple;
import static org.testng.AssertJUnit.assertTrue;
import java.util.Comparator;
import com.opengamma.util.tuple.DoublesPair;
import com.opengamma.util.tuple.Pair;
import org.testng.annotations.Test;
import com.opengamma.util.test.TestGroup;
/**
* Test QuadrantDoublesPairComparator.
*/
@Test(groups = TestGroup.UNIT)
public class QuadrantDoublesPairComparatorTest {
public void testCompare_differentQuadrants() {
final DoublesPair first = Pair.of(0.0, 0.0);
final DoublesPair second = Pair.of(-0.1, 0.0);
final DoublesPair third = Pair.of(-0.1, -0.1);
final DoublesPair fourth = Pair.of(0.0, -0.1);
final Comparator<DoublesPair> test = QuadrantDoublesPairComparator.INSTANCE;
assertTrue(test.compare(first, first) == 0);
assertTrue(test.compare(first, second) < 0);
assertTrue(test.compare(first, third) < 0);
assertTrue(test.compare(first, fourth) < 0);
assertTrue(test.compare(second, first) > 0);
assertTrue(test.compare(second, second) == 0);
assertTrue(test.compare(second, third) < 0);
assertTrue(test.compare(second, fourth) < 0);
assertTrue(test.compare(third, first) > 0);
assertTrue(test.compare(third, second) > 0);
assertTrue(test.compare(third, third) == 0);
assertTrue(test.compare(third, fourth) < 0);
assertTrue(test.compare(fourth, first) > 0);
assertTrue(test.compare(fourth, second) > 0);
assertTrue(test.compare(fourth, third) > 0);
assertTrue(test.compare(fourth, fourth) == 0);
}
public void testCompare_sameQuadrant() {
final DoublesPair first = Pair.of(0.0, 0.0);
final DoublesPair second = Pair.of(1.0, 0.0);
final Comparator<DoublesPair> test = QuadrantDoublesPairComparator.INSTANCE;
assertTrue(test.compare(first, first) == 0);
assertTrue(test.compare(first, second) < 0);
assertTrue(test.compare(second, first) > 0);
assertTrue(test.compare(second, second) == 0);
}
}