tests/org.eclipse.swt.tests/JUnit Tests/org/eclipse/swt/tests/junit/performance/Test_org_eclipse_swt_graphics_ImageLoader.java

/*******************************************************************************
 * Copyright (c) 2000, 2004 IBM Corporation and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Common Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/cpl-v10.html
 * 
 * Contributors:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/
package org.eclipse.swt.tests.junit.performance;


import java.io.*;

import junit.framework.*;
import junit.textui.*;

import org.eclipse.swt.graphics.*;
import org.eclipse.test.performance.PerformanceMeter;

/**
 * Automated Performance Test Suite for class org.eclipse.swt.graphics.ImageLoader
 *
 * @see org.eclipse.swt.graphics.ImageLoader
 */
public class Test_org_eclipse_swt_graphics_ImageLoader extends SwtPerformanceTestCase {

public Test_org_eclipse_swt_graphics_ImageLoader(String name) {
	super(name);
}

public static void main(String[] args) {
	TestRunner.run(suite());
}

public void test_Constructor() {
	final int COUNT = 5000000;
	
	PerformanceMeter meter = createMeter("ImageLoader constr.");
	meter.start();
	for (int i = 0; i < COUNT; i++) {
		new ImageLoader();
	}
	meter.stop();
	
	disposeMeter(meter);
}

public void test_addImageLoaderListenerLorg_eclipse_swt_graphics_ImageLoaderListener() {
	final int COUNT = 5000000;	// 6000000 causes OOM error
	
	ImageLoader loader = new ImageLoader();
	ImageLoaderListener loaderListener = new ImageLoaderListener() {
		public void imageDataLoaded(ImageLoaderEvent e) {
		};
	};
	
	PerformanceMeter meter = createMeter("ImageLoader addImageLoaderListener");
	meter.start();
	for (int i = 0; i < COUNT; i++) {
		loader.addImageLoaderListener(loaderListener);
	}
	meter.stop();
	
	disposeMeter(meter);
}

public void test_hasListeners() {
	final int COUNT = 300000000;
	
	ImageLoader loader = new ImageLoader();
	
	PerformanceMeter meter = createMeter("ImageLoader hasListeners - no");
	meter.start();
	for (int i = 0; i < COUNT; i++) {
		loader.hasListeners();	// no listeners
	}
	meter.stop();
	
	disposeMeter(meter);
	
	loader.addImageLoaderListener(new ImageLoaderListener() {
		public void imageDataLoaded(ImageLoaderEvent e) {
		};
	});
	
	meter = createMeter("ImageLoader hasListeners - yes");
	meter.start();
	for (int i = 0; i < COUNT; i++) {
		loader.hasListeners();	// has listener
	}
	meter.stop();
	
	disposeMeter(meter);
}

public void test_loadLjava_io_InputStream() {
	// TODO
}

public void test_loadLjava_lang_String() {
	final int COUNT = 4500;
	
	// j2se and j2me(cdc) can load from a filename but, j2me(cldc) throws an exception
	if (isJ2ME()) return;

	ImageLoader loader = new ImageLoader();
	String fileName = getPath(imageFilenames[0] + "." + imageFormats[0]);
	
	PerformanceMeter meter = createMeter("ImageLoader load(String)");
	meter.start();
	for (int i = 0; i < COUNT; i++) {
		loader.load(fileName);
	}
	meter.stop();
	
	disposeMeter(meter);
}

public void test_notifyListenersLorg_eclipse_swt_graphics_ImageLoaderEvent() {
	final int COUNT = 16000000;
	
	ImageLoader loader = new ImageLoader();
	ImageLoaderEvent event = new ImageLoaderEvent(loader, null, 0, true);
	loader.addImageLoaderListener(
		new ImageLoaderListener() {
			public void imageDataLoaded(ImageLoaderEvent e) {}
	});
	
	PerformanceMeter meter = createMeter("ImageLoader notifyListeners");
	meter.start();
	for (int i = 0; i < COUNT; i++) {
		loader.notifyListeners(event);
	}
	meter.stop();
	
	disposeMeter(meter);
}

public void test_removeImageLoaderListenerLorg_eclipse_swt_graphics_ImageLoaderListener() {
	final int COUNT = 50000;
	
	ImageLoader loader = new ImageLoader();
	ImageLoaderListener[] listeners = new ImageLoaderListener[COUNT];
	for (int i = 0; i < COUNT; i++) {
		listeners[i] = new ImageLoaderListener() {
			public void imageDataLoaded(ImageLoaderEvent e) {}
		};
		loader.addImageLoaderListener(listeners[i]);
	}
	
	PerformanceMeter meter = createMeter("ImageLoader removeImageLoaderListener");
	meter.start();
	for (int i = 0; i < COUNT; i++) {
		loader.removeImageLoaderListener(listeners[i]);
	}
	meter.stop();
	
	disposeMeter(meter);
}

public void test_saveLjava_io_OutputStreamI() {
	final int COUNT = 30000;
	
	ImageLoader loader = new ImageLoader();
	boolean jpgSupported = false;
	for (int i=0; i<imageFormats.length; i++) {
		if (imageFormats[i].equals("jpg")) {
			jpgSupported = true;
			break;
		}
	}
	if (!jpgSupported) return;
	
	String filename = imageFilenames[0];
	// must use jpg since save is not implemented yet in png format		
	String filetype = "jpg";
	FileInputStream inStream = null;
	try {
		inStream = new FileInputStream(getPath(filename + "." + filetype));
	} catch (FileNotFoundException e1) {
		e1.printStackTrace();
	}	
	loader.load(inStream);
	try {
		inStream.close();
	} catch (IOException e) {
		e.printStackTrace();
	}
	ByteArrayOutputStream outStream = new ByteArrayOutputStream();
	try {
		for (int i = 0; i < imageFormats.length; i++) {
			if (imageFormats[i].equals(filetype)) {

				PerformanceMeter meter = createMeter("ImageLoader save(OutputStream,I) - " + i);
				meter.start();
				for (int j = 0; j < COUNT; j++) {
					loader.save(outStream, i);
				}
				meter.stop();
				
				disposeMeter(meter);
				
				break;
			}
		}
	} finally {
		try {
			outStream.close();
		} catch (Exception e) {
			e.printStackTrace();
		}
	}
}

public void test_saveLjava_lang_StringI() {
	// TODO
//	final int COUNT = 10000;
//	
//	// j2se and j2me(cdc) can load from a filename but, j2me(cldc) throws an exception
//	if (isJ2ME()) return;
//
//	ImageLoader loader = new ImageLoader();
//	String name = getPath(imageFilenames[0] + "." + imageFormats[0]);
//	InputStream inStream = null;
//	try {
//		inStream = new FileInputStream(name);
//	} catch (FileNotFoundException e) {
//		e.printStackTrace();
//	}	
//	loader.load(inStream);
//	try {
//		inStream.close();
//	} catch (IOException e2) {
//		e2.printStackTrace();
//	}
//
//	OutputStream outStream = new ByteArrayOutputStream();
//	
//	try {
//		PerformanceMeter meter = createMeter("gif");
//		meter.start();
//		for (int i = 0; i < COUNT; i++) {
//			loader.save(outStream, SWT.IMAGE_GIF);
//		}
//		meter.stop();
//		
//		disposeMeter(meter);
//	
//		meter = createMeter("ico");
//		meter.start();
//		for (int i = 0; i < COUNT; i++) {
//			loader.save(outStream, SWT.IMAGE_ICO);
//		}
//		meter.stop();
//		
//		disposeMeter(meter);
//		
//		meter = createMeter("jpg");
//		meter.start();
//		for (int i = 0; i < COUNT; i++) {
//			loader.save(outStream, SWT.IMAGE_JPEG);
//		}
//		meter.stop();
//		
//		disposeMeter(meter);
//	} finally {
//		try {
//			outStream.close();
//		} catch (IOException e1) {
//			e1.printStackTrace();
//		}
//	}
}

public static Test suite() {
	TestSuite suite = new TestSuite();
	java.util.Vector methodNames = methodNames();
	java.util.Enumeration e = methodNames.elements();
	while (e.hasMoreElements()) {
		suite.addTest(new Test_org_eclipse_swt_graphics_ImageLoader((String)e.nextElement()));
	}
	return suite;
}
public static java.util.Vector methodNames() {
	java.util.Vector methodNames = new java.util.Vector();
	methodNames.addElement("test_Constructor");
	methodNames.addElement("test_addImageLoaderListenerLorg_eclipse_swt_graphics_ImageLoaderListener");
	methodNames.addElement("test_hasListeners");
	methodNames.addElement("test_loadLjava_io_InputStream");
	methodNames.addElement("test_loadLjava_lang_String");
	methodNames.addElement("test_notifyListenersLorg_eclipse_swt_graphics_ImageLoaderEvent");
	methodNames.addElement("test_removeImageLoaderListenerLorg_eclipse_swt_graphics_ImageLoaderListener");
	methodNames.addElement("test_saveLjava_io_OutputStreamI");
	methodNames.addElement("test_saveLjava_lang_StringI");
	return methodNames;
}
protected void runTest() throws Throwable {
	if (getName().equals("test_Constructor")) test_Constructor();
	else if (getName().equals("test_addImageLoaderListenerLorg_eclipse_swt_graphics_ImageLoaderListener")) test_addImageLoaderListenerLorg_eclipse_swt_graphics_ImageLoaderListener();
	else if (getName().equals("test_hasListeners")) test_hasListeners();
	else if (getName().equals("test_loadLjava_io_InputStream")) test_loadLjava_io_InputStream();
	else if (getName().equals("test_loadLjava_lang_String")) test_loadLjava_lang_String();
	else if (getName().equals("test_notifyListenersLorg_eclipse_swt_graphics_ImageLoaderEvent")) test_notifyListenersLorg_eclipse_swt_graphics_ImageLoaderEvent();
	else if (getName().equals("test_removeImageLoaderListenerLorg_eclipse_swt_graphics_ImageLoaderListener")) test_removeImageLoaderListenerLorg_eclipse_swt_graphics_ImageLoaderListener();
	else if (getName().equals("test_saveLjava_io_OutputStreamI")) test_saveLjava_io_OutputStreamI();
	else if (getName().equals("test_saveLjava_lang_StringI")) test_saveLjava_lang_StringI();
}
}