/*
* Copyright ( c ) 2011 , 2015 , Oracle and / or its affiliates . All rights reserved .
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER .
*
* This code is free software ; you can redistribute it and / or modify it
* under the terms of the GNU General Public License version 2 only , as
* published by the Free Software Foundation .
*
* This code 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
* version 2 for more details ( a copy is included in the LICENSE file that
* accompanied this code ) .
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work ; if not , write to the Free Software Foundation ,
* Inc . , 51 Franklin St , Fifth Floor , Boston , MA 02110 - 1301 USA .
*
* Please contact Oracle , 500 Oracle Parkway , Redwood Shores , CA 94065 USA
* or visit www . oracle . com if you need additional information or have any
* questions .
*/
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.awt.image.BufferedImage;
import java.util.ArrayList;
import java.util.LinkedList;
import java.util.List;
import java.util.concurrent.Callable;
/**
* < p > This class contains utilities useful for regression testing .
* < p > When using jtreg you would include this class via something like :
* < pre >
*
* @ library . . / . . / regtesthelpers
* @ build Util
* < / pre >
*/
public class Util {
/**
* Convert a rectangle from coordinate system of Component c to
* screen coordinate system .
*
* @ param r a non - null Rectangle
* @ param c a Component whose coordinate system is used for conversion
*/
public static void convertRectToScreen(Rectangle r, Component c) {
Point p = new Point(r.x, r.y);
SwingUtilities.convertPointToScreen(p, c);
r.x = p.x;
r.y = p.y;
}
/**
* Compares two bufferedImages pixel - by - pixel .
* return true if all pixels in the two areas are identical
*/
public static boolean compareBufferedImages(BufferedImage bufferedImage0, BufferedImage bufferedImage1) {
int width = bufferedImage0.getWidth();
int height = bufferedImage0.getHeight();
if (width != bufferedImage1.getWidth() || height != bufferedImage1.getHeight()) {
return false ;
}
for (int y = 0 ; y < height; y++) {
for (int x = 0 ; x < width; x++) {
if (bufferedImage0.getRGB(x, y) != bufferedImage1.getRGB(x, y)) {
return false ;
}
}
}
return true ;
}
/**
* Fills the heap until OutOfMemoryError occurs . This method is useful for
* WeakReferences removing . To minimize the amount of filled memory the
* test should provide reasonable heap size via - mx option .
*/
public static void generateOOME() {
List<Object> bigLeak = new LinkedList<Object>();
boolean oome = false ;
System.out.print("Filling the heap" );
try {
for (int i = 0 ; true ; i++) {
// Now, use up all RAM
bigLeak.add(new byte [1024 * 1024 ]);
System.out.print("." );
// Give the GC a change at that weakref
if (i % 10 == 0 ) {
System.gc();
try {
Thread .sleep(100 );
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
} catch (OutOfMemoryError e) {
bigLeak = null ;
oome = true ;
}
System.out.println("" );
if (!oome) {
throw new RuntimeException("Problem with test case - never got OOME" );
}
System.out.println("Got OOME" );
}
/**
* Find a sub component by class name .
* Always run this method on the EDT thread
*/
public static Component findSubComponent(Component parent, String className) {
String parentClassName = parent.getClass().getName();
if (parentClassName.contains(className)) {
return parent;
}
if (parent instanceof Container) {
for (Component child : ((Container) parent).getComponents()) {
Component subComponent = findSubComponent(child, className);
if (subComponent != null ) {
return subComponent;
}
}
}
return null ;
}
/**
* Hits mnemonics by robot .
*/
public static void hitMnemonics(Robot robot, int ... keys) {
ArrayList<Integer> mnemonicKeyCodes = getSystemMnemonicKeyCodes();
for (Integer mnemonic : mnemonicKeyCodes) {
robot.keyPress(mnemonic);
}
hitKeys(robot, keys);
for (Integer mnemonic : mnemonicKeyCodes) {
robot.keyRelease(mnemonic);
}
}
/**
* Hits keys by robot .
*/
public static void hitKeys(Robot robot, int ... keys) {
for (int i = 0 ; i < keys.length; i++) {
robot.keyPress(keys[i]);
}
for (int i = keys.length - 1 ; i >= 0 ; i--) {
robot.keyRelease(keys[i]);
}
}
/**
* Moves mouse smoothly from ( x0 , y0 ) to ( x1 , y1 ) .
*/
public static void glide(Robot robot, int x0, int y0, int x1, int y1) throws AWTException {
float dmax = (float ) Math.max(Math.abs(x1 - x0), Math.abs(y1 - y0));
float dx = (x1 - x0) / dmax;
float dy = (y1 - y0) / dmax;
for (int i = 0 ; i <= dmax; i += 10 ) {
robot.mouseMove((int ) (x0 + dx * i), (int ) (y0 + dy * i));
}
}
/**
* Gets component center point
*
* @ return center point of the < code > component < / code >
*/
public static Point getCenterPoint(final Component component) throws Exception {
return Util.invokeOnEDT(new Callable<Point>() {
@Override
public Point call() throws Exception {
Point p = component.getLocationOnScreen();
Dimension size = component.getSize();
return new Point(p.x + size.width / 2 , p.y + size.height / 2 );
}
});
}
/**
* Invokes the < code > task < / code > on the EDT thread .
*
* @ return result of the < code > task < / code >
*/
public static <T> T invokeOnEDT(final Callable<T> task) throws Exception {
final List<T> result = new ArrayList<>(1 );
final Exception[] exception = new Exception[1 ];
SwingUtilities.invokeAndWait(new Runnable() {
@Override
public void run() {
try {
result.add(task.call());
} catch (Exception e) {
exception[0 ] = e;
}
}
});
if (exception[0 ] != null ) {
throw exception[0 ];
}
return result.get(0 );
}
/**
* Gets the key codes list from modifiers
* @ param modifiers an integer combination of the modifier constants
* @ return key codes list
*/
public static ArrayList<Integer> getKeyCodesFromKeyMask(int modifiers) {
ArrayList<Integer> result = new ArrayList<>();
if ((modifiers & InputEvent.CTRL_MASK) != 0 ) {
result.add(KeyEvent.VK_CONTROL);
}
if ((modifiers & InputEvent.ALT_MASK) != 0 ) {
result.add(KeyEvent.VK_ALT);
}
if ((modifiers & InputEvent.SHIFT_MASK) != 0 ) {
result.add(KeyEvent.VK_SHIFT);
}
if ((modifiers & InputEvent.META_MASK) != 0 ) {
result.add(KeyEvent.VK_META);
}
return result;
}
/**
* Gets key codes from system mnemonic key mask
* @ return key codes list
*/
public static ArrayList<Integer> getSystemMnemonicKeyCodes() {
String osName = System.getProperty("os.name" );
ArrayList<Integer> result = new ArrayList<>();
if (osName.contains("OS X" )) {
result.add(KeyEvent.VK_CONTROL);
}
result.add(KeyEvent.VK_ALT);
return result;
}
/**
* Creates and returns a JDialog with two button , one that says pass ,
* another that says fail . The fail button is wired to call
* < code > uiTestFailed < / code > with < code > failString < / code > and the pass
* button is wired to invoked < code > uiTestPassed < / code > .
* < p > The content pane of the JDialog uses a BorderLayout with the
* buttons inside a horizontal box with filler between them and the
* pass button on the left .
* < p > The returned Dialog has not been packed , or made visible , it is
* up to the caller to do that ( after putting in some useful components ) .
*/
public static JDialog createModalDialogWithPassFailButtons(final String failString) {
JDialog retDialog = new JDialog();
Box buttonBox = Box.createHorizontalBox();
JButton passButton = new JButton("Pass" );
JButton failButton = new JButton("Fail" );
passButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent ae) {
retDialog.dispose();
}
});
failButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent ae) {
retDialog.dispose();
throw new RuntimeException("Test failed. " + failString);
}
});
retDialog.setTitle("Test" );
retDialog.setModalityType(Dialog.ModalityType.APPLICATION_MODAL);
buttonBox.add(passButton);
buttonBox.add(Box.createGlue());
buttonBox.add(failButton);
retDialog.getContentPane().add(buttonBox, BorderLayout.SOUTH);
retDialog.setDefaultCloseOperation(JDialog.DISPOSE_ON_CLOSE);
return retDialog;
}
}
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