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/*
* Copyright (c) 1998, 2023, 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 java.awt.Button;
import java.awt.EventQueue;
import java.awt.Frame;
import java.awt.Panel;
import java.awt.event.ContainerAdapter;
import java.awt.event.ContainerEvent;
/*
* @test
* @key headful
* @bug 4028904
* @summary Tests whether System.out.println(ContainerEvent e)
* yields incorrect display or not.
*/
public class ContainerEventChildTest {
private static Frame frame;
private static String com1, com2;
public static void main(String[] args) throws Exception {
try {
EventQueue.invokeAndWait(() -> {
frame = new Frame();
Panel outerPanel = new Panel();
Panel innerPanel = new Panel();
Button b = new Button("Panel Button");
innerPanel.addContainerListener(new ContainerAdapter() {
public void componentAdded(ContainerEvent e) {
String str1 = e.toString();
String str2 = (e.getChild()).toString();
// extracting child values from ContainerEvent i.e., "e" and "e.getChild()"
com1 = str1.substring(str1.indexOf("child") + 6, str1.indexOf("]"));
com2 = str2.substring(str2.indexOf("[") + 1, str2.indexOf(","));
System.out.println("e : " + com1);
System.out.println("e.getChild() : " + com2);
// comparing the child values between "e" and "e.getChild()"
// if child value of "e" equals null and child values between
// "e" and "e.getChild()" are not equal then throws exception
if (com1.equals("null") && !(com1.equals(com2))) {
System.out.println("unequal");
throw new RuntimeException("Test Failed e.toString returns false value");
} else {
System.out.println("Test Passed - e and e.getChild() are same");
}
}
});
innerPanel.add(b);
outerPanel.add(innerPanel);
frame.add(outerPanel);
frame.setVisible(true);
});
} finally {
EventQueue.invokeAndWait(() -> {
if (frame != null) {
frame.dispose();
}
});
}
}
}
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