| gvSIG desktop 1

package org.gvsig.raster.buffer.cache;

import java.util.Date;

import junit.framework.TestCase;

import org.gvsig.raster.RasterLibrary;

import org.gvsig.raster.buffer.cache.RasterCache;

import org.gvsig.raster.dataset.IBuffer;

/**

 * Test para probar la operaci?n de asignar una constante a una banda de un buffer cacheado y 

 * el intercambio de 2 bandas para el mismo buffer. Con esto se prueban las operaciones de assign, getBand,

 * assignBand, assignBandToNotValid, interchangeBands y getBandBuffer

 * 

 * @author Nacho Brodin (nachobrodin@gmail.com)

 */

public class TestAssignInterchangeBandsCache extends TestCase{

        private RasterCache rc = null;

        static{

                RasterLibrary.wakeUp();

        }

        public void start(){

                this.setUp();

                this.testStack();

        }

        public void setUp() {

                System.err.println("TestBandOperationCache running...");

                rc = new RasterCache(IBuffer.TYPE_BYTE, 6000, 5000, 3);

        }

        public void testStack(){

                long t2, t3, t4;

        long t1 = new Date().getTime();

        rc.setNotValidValue(40);

                rc.assign(0, (byte)20);

                rc.assign(1, (byte)30);

                rc.assignBandToNotValid(2);

                t2 = new Date().getTime();

        System.out.println("Time: asignar buffer a un valor cte: " + ((t2 - t1) / 1000D) + ", secs.");

        rc.interchangeBands(0, 1);

                testValues(30, 20, 40);

                t3 = new Date().getTime();

        System.out.println("Time: asserts del valor por banda cacheado: " + ((t3 - t2) / 1000D) + ", secs.");

        IBuffer buf = rc.getBandBuffer(2);

        testValue((int)rc.getNotValidValue(), buf);

        t4 = new Date().getTime();

        System.out.println("Time: getBandBuffer: " + ((t4 - t3) / 1000D) + ", secs.");

        }

        private void testValues(int v1, int v2, int v3){

                for (int row = 0; row < rc.getHeight(); row++) {

                        for (int col = 0; col < rc.getWidth(); col++) {

                                assertEquals(v1, rc.getElemByte(row, col, 0));

                                assertEquals(v2, rc.getElemByte(row, col, 1));

                                assertEquals(v3, rc.getElemByte(row, col, 2));

                        }

                }

        }

        private void testValue(int value, IBuffer buf){

                for (int row = 0; row < buf.getHeight(); row++) {

                        for (int col = 0; col < buf.getWidth(); col++) 

                                assertEquals(value, buf.getElemByte(row, col, 0));

                }

        }

}