BoundsBuilderTest.java

/*******************************************************************************
 * This file is part of OpenNMS(R).
 *
 * Copyright (C) 2010-2011 The OpenNMS Group, Inc.
 * OpenNMS(R) is Copyright (C) 1999-2011 The OpenNMS Group, Inc.
 *
 * OpenNMS(R) is a registered trademark of The OpenNMS Group, Inc.
 *
 * OpenNMS(R) 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 3 of the License,
 * or (at your option) any later version.
 *
 * OpenNMS(R) 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 OpenNMS(R).  If not, see:
 *      http://www.gnu.org/licenses/
 *
 * For more information contact:
 *     OpenNMS(R) Licensing <license@opennms.org>
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package org.opennms.features.poller.remote.gwt.client.utils;

import static org.junit.Assert.assertEquals;

import org.junit.Test;
import org.opennms.features.poller.remote.gwt.client.GWTBounds;
import org.opennms.features.poller.remote.gwt.client.GWTLatLng;
import org.opennms.features.poller.remote.gwt.client.utils.BoundsBuilder;


public class BoundsBuilderTest {
    
    @Test
    public void testAddNoPoints() {
        BoundsBuilder bldr = new BoundsBuilder();
        
        
        assertEquals(new GWTBounds(-90, -180, 90, 180), bldr.getBounds());
    }
    @Test
    public void testAddOnePoint() {
        BoundsBuilder bldr = new BoundsBuilder();
        
        GWTLatLng origin = new GWTLatLng(0.0, 0.0);
        bldr.extend(origin);
        
        assertEquals(new GWTBounds(origin, origin), bldr.getBounds());
    }
    
    @Test
    public void testAddTwoCornerPoints() {
        BoundsBuilder bldr = new BoundsBuilder();
        
        bldr.extend(0.0, 0.0);
        bldr.extend(1.0, 1.0);
        
        assertEquals(new GWTBounds(0.0, 0.0, 1.0, 1.0), bldr.getBounds());
        
    }

    @Test
    public void testAddOppositeCornerPoints() {
        BoundsBuilder bldr = new BoundsBuilder();
        
        bldr.extend(0.0, 1.0);
        bldr.extend(1.0, 0.0);
        
        assertEquals(new GWTBounds(0.0, 0.0, 1.0, 1.0), bldr.getBounds());
        
    }

    @Test
    public void testAddInteriorPoint() {
        BoundsBuilder bldr = new BoundsBuilder();
        
        bldr.extend(0.0, 0.0);
        bldr.extend(2.0, 2.0);
        
        assertEquals(new GWTBounds(0.0, 0.0, 2.0, 2.0), bldr.getBounds());

        bldr.extend(1.0, 1.0);
        
        // nothing happens because its in the interior
        assertEquals(new GWTBounds(0.0, 0.0, 2.0, 2.0), bldr.getBounds());
        
    }

    @Test
    public void testAddManyPoints() {
        BoundsBuilder bldr = new BoundsBuilder();
        
        
        for(int i = 0; i <= 10; i++) {
            bldr.extend(0.0 + i, 0.0);
            bldr.extend(0.0, 0.0 - i);
        }
        
        assertEquals(new GWTBounds(0.0, -10.0, 10.0, 0.0), bldr.getBounds());
        
    }
    
    @Test
    public void testDatelinePoints() {
        
        BoundsBuilder bldr = new BoundsBuilder();
        
        bldr.extend(40, -170);
        bldr.extend(30, 170);
        
        assertEquals(new GWTBounds(30, 170, 40, -170), bldr.getBounds());
        
    }
    
    @Test
    public void testExtendEastThenWest() {
        BoundsBuilder bldr = new BoundsBuilder();
        
        bldr.extend(0.0, 0.0);
        bldr.extend(0.0, 170.0);
        
        assertEquals(new GWTBounds(0.0, 0.0, 0, 170), bldr.getBounds());
        
        bldr.extend(0.0, -90.0);
        
        assertEquals(new GWTBounds(0, -90, 0, 170), bldr.getBounds());
        
    }
    
    @Test
    public void testExtendEastAndWrap() {
        BoundsBuilder bldr = new BoundsBuilder();
        
        bldr.extend(0.0, 0.0);
        bldr.extend(0.0, 170.0);
        
        assertEquals(new GWTBounds(0.0, 0.0, 0, 170), bldr.getBounds());
        
        bldr.extend(0.0, -100.0);
        
        assertEquals(new GWTBounds(0, 0, 0, -100), bldr.getBounds());
        
    }
    
    @Test
    public void testExtendWestThenEast() {
        BoundsBuilder bldr = new BoundsBuilder();
        
        bldr.extend(0.0, 0.0);
        bldr.extend(0.0, -170.0);
        
        assertEquals(new GWTBounds(0.0, -170, 0, 0), bldr.getBounds());
        
        bldr.extend(0.0, 90.0);
        
        assertEquals(new GWTBounds(0, -170, 0, 90), bldr.getBounds());
        
    }
    @Test
    public void testExtendWestAndWrap() {
        BoundsBuilder bldr = new BoundsBuilder();
        
        bldr.extend(0.0, 0.0);
        bldr.extend(0.0, -170.0);
        
        assertEquals(new GWTBounds(0.0, -170, 0, 0), bldr.getBounds());
        
        bldr.extend(0.0, 100.0);
        
        assertEquals(new GWTBounds(0, 100, 0, 0), bldr.getBounds());
        
    }
    
    @Test
    public void testDistanceFromEasternHemi() {
        
        BoundsBuilder bldr = new BoundsBuilder();
        
        bldr.extend(10, 170);
        bldr.extend(0, 160);
        
        assertEquals(5.0, bldr.distanceEast(175), 0.0);
        assertEquals(5.0, bldr.distanceWest(155), 0.0);
        
        assertEquals(20.0, bldr.distanceEast(-170), 0.0);
        assertEquals(330.0, bldr.distanceWest(-170), 0.0);
        
    }

    @Test
    public void testDistanceFromWesternHemi() {
        
        BoundsBuilder bldr = new BoundsBuilder();
        
        bldr.extend(10, -170);
        bldr.extend(0, -160);
        
        assertEquals(335.0, bldr.distanceEast(175), 0.0);
        assertEquals(35.0, bldr.distanceWest(155), 0.0);
        
        assertEquals(345.0, bldr.distanceEast(-175), 0.0);
        assertEquals(5.0, bldr.distanceWest(-175), 0.0);
        
    }
}