VEConverterTest.java

package org.geowebcache.service.ve;


import java.util.Arrays;

import junit.framework.TestCase;

public class VEConverterTest extends TestCase {

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

    /**
     * Remember, quadkeys look like this:
     *  0 1 
     *  2 3 
     * 
     * And the "most zoomed out" is level 1, 
     * @throws Exception
     */
    public void testVEConverter() throws Exception {
    	/* Check origin location */
    	String quadKey = "2";
    	long[] gridLoc = VEConverter.convert(quadKey);
    	long[] solution = {0,0,1};
    	assert(Arrays.equals(gridLoc, solution));
    	
    	/* Check zoomlevel */
    	quadKey = "22";
    	solution[0] = 0; solution[1] = 0; solution[2] = 2;
    	gridLoc = VEConverter.convert(quadKey);
    	assert(Arrays.equals(gridLoc, solution));
    	
    	/* Check top right */
    	quadKey = "1";
    	solution[0] = 1; solution[1] = 1; solution[2] = 1;
    	gridLoc = VEConverter.convert(quadKey);
    	assert(Arrays.equals(gridLoc, solution));
    	
    	/* Check top right, zoomlevel */
    	quadKey = "11";
    	solution[0] = 3; solution[1] = 3; solution[2] = 2;
    	gridLoc = VEConverter.convert(quadKey);
    	assert(Arrays.equals(gridLoc, solution));
    	
    	/* Check middle */
    	quadKey = "122";
    	solution[0] = 4; solution[1] = 4; solution[2] = 3;
    	gridLoc = VEConverter.convert(quadKey);
    	assert(Arrays.equals(gridLoc, solution));
    }
}