Application: gvSIG desktop

package org.gvsig.raster.dataaccess.cache;

import junit.framework.TestCase;

import org.gvsig.raster.dataaccess.cache.CacheStruct;

import org.gvsig.raster.driver.IBuffer;

import org.gvsig.raster.shared.RasterLibrary;

import org.gvsig.raster.shared.RasterUtilities;

/**

 * Test para comprobar la inicializaci?n de la cach?. El constructor de CacheStruct es el 

 * encargado de crear la estructura de cache. Esta clase comprueba que esta creaci?n

 * sea correcta. Comprueba altura de p?gina, n?mero de estas, y tama?o de las mismas, as?

 * como el de la cache completa.

 * 

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

 */

public class TestStructCache extends TestCase{

        private CacheStruct cs = null;

        static{

                RasterLibrary.wakeUp();        

        }

        public void start(){

                this.setUp();

                this.testStack();

        }

        public void setUp() {

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

        }

        public void testStack(){

                //Test para los siguientes valores

                //Cach? size = 20M

                //Pags Per Group = 5

                //Page size = 2M

                cs = new CacheStruct(3, IBuffer.TYPE_BYTE, 2048, 2048, 20, 2);

                print(cs, "Size = 20M; Pags Per Group = 5; Page size = 2M", 2048, 2048, IBuffer.TYPE_BYTE);

                assertEquals(cs.getHPag(), 256);

                assertEquals(cs.getNBands(), 3);

                assertEquals(cs.getCacheSize(), 23592960);

                assertEquals(cs.getPagsPerGroup(), 5);

                assertEquals(cs.getPagSize(), 1572864);

                assertEquals(cs.getNPags(), 15);

                assertEquals(cs.getNGroups(), 3);

                System.out.println("**********************************************");

                cs = new CacheStruct(4, IBuffer.TYPE_INT, 5000, 5000, 20, 2);

                print(cs, "Size = 20M; Pags Per Group = 5; Page size = 2M", 5000, 5000, IBuffer.TYPE_INT);

                assertEquals(cs.getHPag(), 16);

                assertEquals(cs.getNBands(), 4);

                assertEquals(cs.getCacheSize(), 25600000);

                assertEquals(cs.getPagsPerGroup(), 5);

                assertEquals(cs.getPagSize(), 1280000);

                assertEquals(cs.getNPags(), 20);

                assertEquals(cs.getNGroups(), 4);

                System.out.println("**********************************************");

                cs = new CacheStruct(3, IBuffer.TYPE_FLOAT, 42000, 42000, 20, 2);

                print(cs, "Size = 20M; Pags Per Group = 5; Page size = 2M", 42000, 42000, IBuffer.TYPE_FLOAT);

                assertEquals(cs.getHPag(), 4);

                assertEquals(cs.getNBands(), 3);

                assertEquals(cs.getCacheSize(), 20160000);

                assertEquals(cs.getPagsPerGroup(), 5);

                assertEquals(cs.getPagSize(), 2016000);

                assertEquals(cs.getNPags(), 10);

                assertEquals(cs.getNGroups(), 2);

                System.out.println("**********************************************");

                cs = new CacheStruct(1, IBuffer.TYPE_FLOAT, 105000, 105000, 20, 2);

                print(cs, "Size = 20M; Pags Per Group = 5; Page size = 2M", 105000, 105000, IBuffer.TYPE_FLOAT);

                assertEquals(cs.getHPag(), 4);

                assertEquals(cs.getNBands(), 1);

                assertEquals(cs.getCacheSize(), 25200000);

                assertEquals(cs.getPagsPerGroup(), 5);

                assertEquals(cs.getPagSize(), 1680000);

                assertEquals(cs.getNPags(), 15);

                assertEquals(cs.getNGroups(), 3);

                System.out.println("**********************************************");                

        }

        private void print(CacheStruct cs, String initValues, int w, int h, int type) {

                System.out.println(initValues);

                System.out.println("W x H = " + w + " x " + h);

                cs.show();

        }

}