8008379: TEST_BUG: Fail automatically with java.lang.NullPointerException
Reviewed-by: serb, anthony
This commit is contained in:
Konstantin Shefov
parent
49ba72c463
commit
88eea092fb
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/*
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* Copyright (c) 2013, 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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/*
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@test
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@bug 6430802 8008379
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@summary WM should not hang after show()/close()
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@author anthony.petrov@sun.com: area=awt.modal
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@run main/manual ModalDialogMultiscreenTest
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*/
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/**
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* ModalDialogMultiscreenTest.java
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*
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* summary: Tests whether a WM will hang on show()/close() a modal dialog in multiscreen mode
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*/
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import java.awt.*;
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import java.awt.event.*;
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import javax.swing.*;
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public class ModalDialogMultiscreenTest
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{
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private static class ButtonActionListener implements ActionListener {
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JFrame frame;
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JDialog dialog;
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public ButtonActionListener(JFrame frame, JDialog dialog) {
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this.frame = frame;
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this.dialog = dialog;
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}
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public void actionPerformed(ActionEvent e) {
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dialog.setLocationRelativeTo(frame);
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dialog.setVisible(true);
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}
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}
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public static class TestDialog extends JDialog {
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public TestDialog(Frame owner, String title, boolean modal, GraphicsConfiguration gc) {
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super(owner, title, modal, gc);
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setSize(200, 100);
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JButton button = new JButton("Close");
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button.addActionListener(new ActionListener() {
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public void actionPerformed(ActionEvent e) {
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dispose();
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}
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});
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getContentPane().add(button);
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}
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}
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private static void init()
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{
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GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
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GraphicsDevice[] gs = ge.getScreenDevices();
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Sysout.createDialog( );
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if (gs.length < 2) {
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System.out.println("Not multi-head environment, test not valid!");
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ModalDialogMultiscreenTest.pass( );
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}
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String[] instructions =
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{
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"The test should be run on a multi-head X (non-xinerama) systems.",
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"Otherwise click the Pass button right now.",
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"You will see an open Frame on each screen your system has.",
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"The frame has an 'Open dialog' button.",
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"Clicking the button opens a modal dialog with a Close button.",
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"The test procedure:",
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"1. Open a dialog and close it with appropriate buttons.",
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"2. Switch to another screen ($ DISPLAY=X.Y xprop)",
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"3. Repeat steps 1-2 several times (about 3*<number-of-screens>)",
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"If the test doesn't cause the window manager to hang, it's passed."
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};
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Sysout.printInstructions( instructions );
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for (int i = 0; i < gs.length; i++) {
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JFrame frame = new JFrame("Frame "+i,gs[i].getDefaultConfiguration());
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JButton button = new JButton("Open Dialog");
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button.setMinimumSize(new Dimension(200, 100));
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button.setPreferredSize(new Dimension(200, 100));
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button.setSize(new Dimension(200, 100));
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button.addActionListener(new ButtonActionListener(frame, new TestDialog(frame, "Dialog #"+i, true, gs[i].getDefaultConfiguration())));
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frame.getContentPane().add(button);
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frame.pack();
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frame.setVisible(true);
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}
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}//End init()
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//ap203012: NO MORE CHANGES BELOW THIS LINE
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/*****************************************************
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* Standard Test Machinery Section
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* DO NOT modify anything in this section -- it's a
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* standard chunk of code which has all of the
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* synchronisation necessary for the test harness.
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* By keeping it the same in all tests, it is easier
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* to read and understand someone else's test, as
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* well as insuring that all tests behave correctly
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* with the test harness.
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* There is a section following this for test-defined
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* classes
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******************************************************/
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private static boolean theTestPassed = false;
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private static boolean testGeneratedInterrupt = false;
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private static String failureMessage = "";
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private static Thread mainThread = null;
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private static int sleepTime = 300000;
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public static void main( String args[] ) throws InterruptedException
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{
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mainThread = Thread.currentThread();
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try
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{
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init();
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}
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catch( TestPassedException e )
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{
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//The test passed, so just return from main and harness will
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// interepret this return as a pass
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return;
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}
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//At this point, neither test passed nor test failed has been
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// called -- either would have thrown an exception and ended the
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// test, so we know we have multiple threads.
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//Test involves other threads, so sleep and wait for them to
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// called pass() or fail()
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try
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{
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Thread.sleep( sleepTime );
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//Timed out, so fail the test
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throw new RuntimeException( "Timed out after " + sleepTime/1000 + " seconds" );
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}
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catch (InterruptedException e)
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{
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if( ! testGeneratedInterrupt ) throw e;
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//reset flag in case hit this code more than once for some reason (just safety)
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testGeneratedInterrupt = false;
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if ( theTestPassed == false )
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{
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throw new RuntimeException( failureMessage );
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}
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}
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}//main
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public static synchronized void setTimeoutTo( int seconds )
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{
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sleepTime = seconds * 1000;
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}
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public static synchronized void pass()
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{
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Sysout.println( "The test passed." );
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Sysout.println( "The test is over, hit Ctl-C to stop Java VM" );
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//first check if this is executing in main thread
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if ( mainThread == Thread.currentThread() )
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{
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//Still in the main thread, so set the flag just for kicks,
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// and throw a test passed exception which will be caught
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// and end the test.
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theTestPassed = true;
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throw new TestPassedException();
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}
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//pass was called from a different thread, so set the flag and interrupt
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// the main thead.
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theTestPassed = true;
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testGeneratedInterrupt = true;
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mainThread.interrupt();
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}//pass()
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public static synchronized void fail()
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{
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//test writer didn't specify why test failed, so give generic
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fail( "it just plain failed! :-)" );
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}
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public static synchronized void fail( String whyFailed )
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{
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Sysout.println( "The test failed: " + whyFailed );
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Sysout.println( "The test is over, hit Ctl-C to stop Java VM" );
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//check if this called from main thread
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if ( mainThread == Thread.currentThread() )
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{
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//If main thread, fail now 'cause not sleeping
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throw new RuntimeException( whyFailed );
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}
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theTestPassed = false;
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testGeneratedInterrupt = true;
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failureMessage = whyFailed;
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mainThread.interrupt();
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}//fail()
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}// class ModalDialogMultiscreenTest
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//This exception is used to exit from any level of call nesting
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// when it's determined that the test has passed, and immediately
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// end the test.
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class TestPassedException extends RuntimeException
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{
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}
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//*********** End Standard Test Machinery Section **********
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//************ Begin classes defined for the test ****************
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// make listeners in a class defined here, and instantiate them in init()
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/* Example of a class which may be written as part of a test
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class NewClass implements anInterface
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{
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static int newVar = 0;
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public void eventDispatched(AWTEvent e)
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{
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//Counting events to see if we get enough
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eventCount++;
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if( eventCount == 20 )
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{
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//got enough events, so pass
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ModalDialogMultiscreenTest.pass();
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}
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else if( tries == 20 )
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{
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//tried too many times without getting enough events so fail
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ModalDialogMultiscreenTest.fail();
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}
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}// eventDispatched()
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}// NewClass class
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*/
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//************** End classes defined for the test *******************
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/****************************************************
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Standard Test Machinery
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DO NOT modify anything below -- it's a standard
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chunk of code whose purpose is to make user
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interaction uniform, and thereby make it simpler
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to read and understand someone else's test.
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****************************************************/
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/**
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This is part of the standard test machinery.
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It creates a dialog (with the instructions), and is the interface
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for sending text messages to the user.
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To print the instructions, send an array of strings to Sysout.createDialog
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WithInstructions method. Put one line of instructions per array entry.
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To display a message for the tester to see, simply call Sysout.println
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with the string to be displayed.
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This mimics System.out.println but works within the test harness as well
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as standalone.
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*/
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class Sysout
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{
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private static TestDialog dialog;
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public static void createDialogWithInstructions( String[] instructions )
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{
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dialog = new TestDialog( new Frame(), "Instructions" );
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dialog.printInstructions( instructions );
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dialog.setVisible(true);
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println( "Any messages for the tester will display here." );
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}
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public static void createDialog( )
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{
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dialog = new TestDialog( new Frame(), "Instructions" );
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String[] defInstr = { "Instructions will appear here. ", "" } ;
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dialog.printInstructions( defInstr );
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dialog.setVisible(true);
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println( "Any messages for the tester will display here." );
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}
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public static void printInstructions( String[] instructions )
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{
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dialog.printInstructions( instructions );
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}
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public static void println( String messageIn )
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{
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dialog.displayMessage( messageIn );
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}
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}// Sysout class
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/**
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This is part of the standard test machinery. It provides a place for the
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test instructions to be displayed, and a place for interactive messages
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to the user to be displayed.
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To have the test instructions displayed, see Sysout.
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To have a message to the user be displayed, see Sysout.
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Do not call anything in this dialog directly.
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*/
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class TestDialog extends Dialog implements ActionListener
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{
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TextArea instructionsText;
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TextArea messageText;
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int maxStringLength = 80;
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Panel buttonP = new Panel();
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Button passB = new Button( "pass" );
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Button failB = new Button( "fail" );
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//DO NOT call this directly, go through Sysout
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public TestDialog( Frame frame, String name )
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{
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super( frame, name );
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int scrollBoth = TextArea.SCROLLBARS_BOTH;
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instructionsText = new TextArea( "", 15, maxStringLength, scrollBoth );
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add( "North", instructionsText );
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messageText = new TextArea( "", 5, maxStringLength, scrollBoth );
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add("Center", messageText);
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passB = new Button( "pass" );
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passB.setActionCommand( "pass" );
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passB.addActionListener( this );
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buttonP.add( "East", passB );
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failB = new Button( "fail" );
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failB.setActionCommand( "fail" );
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failB.addActionListener( this );
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buttonP.add( "West", failB );
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add( "South", buttonP );
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pack();
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setVisible(true);
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}// TestDialog()
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//DO NOT call this directly, go through Sysout
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public void printInstructions( String[] instructions )
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{
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//Clear out any current instructions
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instructionsText.setText( "" );
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//Go down array of instruction strings
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String printStr, remainingStr;
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for( int i=0; i < instructions.length; i++ )
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{
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//chop up each into pieces maxSringLength long
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remainingStr = instructions[ i ];
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while( remainingStr.length() > 0 )
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{
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//if longer than max then chop off first max chars to print
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if( remainingStr.length() >= maxStringLength )
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{
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//Try to chop on a word boundary
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int posOfSpace = remainingStr.
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lastIndexOf( ' ', maxStringLength - 1 );
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if( posOfSpace <= 0 ) posOfSpace = maxStringLength - 1;
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printStr = remainingStr.substring( 0, posOfSpace + 1 );
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remainingStr = remainingStr.substring( posOfSpace + 1 );
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}
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//else just print
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else
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{
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printStr = remainingStr;
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remainingStr = "";
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}
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instructionsText.append( printStr + "\n" );
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}// while
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}// for
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}//printInstructions()
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//DO NOT call this directly, go through Sysout
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public void displayMessage( String messageIn )
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{
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messageText.append( messageIn + "\n" );
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System.out.println(messageIn);
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}
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//catch presses of the passed and failed buttons.
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//simply call the standard pass() or fail() static methods of
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//ModalDialogMultiscreenTest
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public void actionPerformed( ActionEvent e )
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{
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if( e.getActionCommand() == "pass" )
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{
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ModalDialogMultiscreenTest.pass();
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}
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else
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{
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ModalDialogMultiscreenTest.fail();
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}
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}
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}// TestDialog class
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