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added a failing test case for cross dateline operations of QuadTree.getLatLngDistance

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Change-Id: I32c997568fafeeaad1e29a1756d3793911025215
This commit is contained in:
Axel Uhl committed 2015-12-23 15:41:17 +01:00
1 parent 3b848aeef2
commit e51a1d7ccc
3 files changed
+114 -17
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java/com.sap.sailing.domain.test/src/com/sap/sailing/domain/test/QuadTreeTest.java
+21 -2
View File
@@ -3,6 +3,7 @@ package com.sap.sailing.domain.test;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertNull;
import static org.junit.Assert.assertSame;
import static org.junit.Assert.assertTrue;
import java.io.IOException;
import java.util.ArrayList;
@@ -1300,8 +1301,8 @@ public class QuadTreeTest {
@Test
public void testDistanceAcrossDateline() {
GLatLngQuadTree myQuadtree = new GLatLngQuadTree(new DegreePosition(-10, 170), new DegreePosition(10, -170), /* maxItems */3);
final DegreePosition nearToDateline = new DegreePosition(0, 179.5);
final DegreePosition farFromDateline = new DegreePosition(0, -175);
final Position nearToDateline = new DegreePosition(0, 179.5);
final Position farFromDateline = new DegreePosition(0, -175);
myQuadtree.put(nearToDateline);
myQuadtree.put(farFromDateline);
final Position nearestToDatelineWest = myQuadtree.get(new DegreePosition(0, 179.9));
@@ -1310,6 +1311,24 @@ public class QuadTreeTest {
assertSame(nearToDateline, nearestToDatelineEast);
}
@Test
public void testBasicDistanceAcrossDateline() {
final Position nearToDateline = new DegreePosition(0, 179.5);
final Position farFromDateline = new DegreePosition(0, -175);
checkDatelineDistances(nearToDateline, farFromDateline, new DegreePosition(0, 180));
checkDatelineDistances(nearToDateline, farFromDateline, new DegreePosition(0, -180));
}
private void checkDatelineDistances(final Position nearToDateline, final Position farFromDateline,
final Position dateLine) {
final double dNear = QuadTree.getLatLngDistance(nearToDateline, dateLine);
final double dFar = QuadTree.getLatLngDistance(farFromDateline, dateLine);
assertTrue(dNear < dFar);
final double dNearReverse = QuadTree.getLatLngDistance(dateLine, nearToDateline);
final double dFarReverse = QuadTree.getLatLngDistance(dateLine, farFromDateline);
assertTrue(dNearReverse < dFarReverse);
}
@AfterClass
public static void writeMeasurements() throws IOException {
performanceReport.write();