88 lines
3.5 KiB
Java
88 lines
3.5 KiB
Java
/*
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* Copyright (c) 1998, 2023, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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import java.awt.Button;
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import java.awt.EventQueue;
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import java.awt.Frame;
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import java.awt.Panel;
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import java.awt.event.ContainerAdapter;
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import java.awt.event.ContainerEvent;
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/*
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* @test
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* @key headful
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* @bug 4028904
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* @summary Tests whether System.out.println(ContainerEvent e)
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* yields incorrect display or not.
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*/
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public class ContainerEventChildTest {
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private static Frame frame;
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private static String com1, com2;
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public static void main(String[] args) throws Exception {
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try {
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EventQueue.invokeAndWait(() -> {
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frame = new Frame();
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Panel outerPanel = new Panel();
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Panel innerPanel = new Panel();
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Button b = new Button("Panel Button");
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innerPanel.addContainerListener(new ContainerAdapter() {
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public void componentAdded(ContainerEvent e) {
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String str1 = e.toString();
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String str2 = (e.getChild()).toString();
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// extracting child values from ContainerEvent i.e., "e" and "e.getChild()"
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com1 = str1.substring(str1.indexOf("child") + 6, str1.indexOf("]"));
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com2 = str2.substring(str2.indexOf("[") + 1, str2.indexOf(","));
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System.out.println("e : " + com1);
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System.out.println("e.getChild() : " + com2);
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// comparing the child values between "e" and "e.getChild()"
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// if child value of "e" equals null and child values between
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// "e" and "e.getChild()" are not equal then throws exception
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if (com1.equals("null") && !(com1.equals(com2))) {
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System.out.println("unequal");
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throw new RuntimeException("Test Failed e.toString returns false value");
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} else {
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System.out.println("Test Passed - e and e.getChild() are same");
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}
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}
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});
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innerPanel.add(b);
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outerPanel.add(innerPanel);
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frame.add(outerPanel);
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frame.setVisible(true);
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});
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} finally {
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EventQueue.invokeAndWait(() -> {
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if (frame != null) {
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frame.dispose();
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}
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});
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}
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}
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}
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