7121765: closed/javax/swing/JTextArea/4697612/bug4697612.java fails on MacOS on Aqua L&F

Reviewed-by: rupashka

test/javax/swing/JTextArea/4697612/bug4697612.java

+/*
+ * Copyright (c) 2012, 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.
+ */
+
+/*
+ * @test
+ * @bug 4697612 6244705
+ * @author Peter Zhelezniakov
+ * @library ../../regtesthelpers
+ * @build Util
+ * @run main bug4697612
+ */
+import java.io.*;
+import java.awt.*;
+import java.awt.event.*;
+import javax.swing.*;
+
+import javax.swing.text.BadLocationException;
+import sun.awt.SunToolkit;
+
+public class bug4697612 {
+
+    static final int FRAME_WIDTH = 300;
+    static final int FRAME_HEIGHT = 300;
+    static final int FONT_HEIGHT = 16;
+    private static volatile int frameHeight;
+    private static volatile int fontHeight;
+    private static JFrame frame;
+    private static JTextArea text;
+    private static JScrollPane scroller;
+
+    public static void main(String[] args) throws Throwable {
+        SunToolkit toolkit = (SunToolkit) Toolkit.getDefaultToolkit();
+        Robot robot = new Robot();
+        robot.setAutoDelay(100);
+
+        SwingUtilities.invokeAndWait(new Runnable() {
+
+            @Override
+            public void run() {
+                createAndShowGUI();
+            }
+        });
+
+        toolkit.realSync();
+
+        SwingUtilities.invokeAndWait(new Runnable() {
+
+            @Override
+            public void run() {
+                text.requestFocus();
+            }
+        });
+
+        toolkit.realSync();
+
+        // 4697612: pressing PgDn + PgUp should not alter caret position
+        Util.hitKeys(robot, KeyEvent.VK_HOME);
+        Util.hitKeys(robot, KeyEvent.VK_PAGE_DOWN);
+
+
+        int pos0 = getTextCaretPosition();
+        int caretHeight = getTextCaretHeight();
+        fontHeight = FONT_HEIGHT;
+
+        // iterate two times, for different (even and odd) font height
+        for (int i = 0; i < 2; i++) {
+
+            SwingUtilities.invokeAndWait(new Runnable() {
+
+                public void run() {
+                    text.setFont(text.getFont().deriveFont(fontHeight));
+                }
+            });
+
+            frameHeight = FRAME_HEIGHT;
+
+            for (int j = 0; j < caretHeight; j++) {
+                SwingUtilities.invokeAndWait(new Runnable() {
+
+                    public void run() {
+                        frame.setSize(FRAME_WIDTH, frameHeight);
+                    }
+                });
+
+                toolkit.realSync();
+
+                Util.hitKeys(robot, KeyEvent.VK_PAGE_DOWN);
+                Util.hitKeys(robot, KeyEvent.VK_PAGE_UP);
+                toolkit.realSync();
+
+                int pos = getTextCaretPosition();
+                if (pos0 != pos) {
+                    throw new RuntimeException("Failed 4697612: PgDn & PgUp keys scroll by different amounts");
+                }
+                frameHeight++;
+            }
+            fontHeight++;
+        }
+
+
+        // 6244705: pressing PgDn at the very bottom should not scroll
+        LookAndFeel laf = UIManager.getLookAndFeel();
+        if (laf.getID().equals("Aqua")) {
+            Util.hitKeys(robot, KeyEvent.VK_END);
+        } else {
+            Util.hitKeys(robot, KeyEvent.VK_CONTROL, KeyEvent.VK_END);
+        }
+
+        toolkit.realSync();
+
+        pos0 = getScrollerViewPosition();
+        Util.hitKeys(robot, KeyEvent.VK_PAGE_DOWN);
+        toolkit.realSync();
+
+        int pos = getScrollerViewPosition();
+
+        if (pos0 != pos) {
+            throw new RuntimeException("Failed 6244705: PgDn at the bottom causes scrolling");
+        }
+    }
+
+    private static int getTextCaretPosition() throws Exception {
+        final int[] result = new int[1];
+        SwingUtilities.invokeAndWait(new Runnable() {
+
+            @Override
+            public void run() {
+                result[0] = text.getCaretPosition();
+            }
+        });
+
+        return result[0];
+    }
+
+    private static int getTextCaretHeight() throws Exception {
+        final int[] result = new int[1];
+        SwingUtilities.invokeAndWait(new Runnable() {
+
+            @Override
+            public void run() {
+                try {
+                    int pos0 = text.getCaretPosition();
+                    Rectangle dotBounds = text.modelToView(pos0);
+                    result[0] = dotBounds.height;
+                } catch (BadLocationException ex) {
+                    throw new RuntimeException(ex);
+                }
+            }
+        });
+
+        return result[0];
+    }
+
+    private static int getScrollerViewPosition() throws Exception {
+        final int[] result = new int[1];
+        SwingUtilities.invokeAndWait(new Runnable() {
+
+            @Override
+            public void run() {
+                result[0] = scroller.getViewport().getViewPosition().y;
+            }
+        });
+
+        return result[0];
+    }
+
+    private static void createAndShowGUI() {
+        frame = new JFrame();
+        frame.setSize(FRAME_WIDTH, FRAME_HEIGHT);
+        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+
+        text = new JTextArea();
+        try {
+            InputStream is =
+                    bug4697612.class.getResourceAsStream("bug4697612.txt");
+            text.read(new InputStreamReader(is), null);
+        } catch (IOException e) {
+            throw new Error(e);
+        }
+
+        scroller = new JScrollPane(text);
+
+        frame.getContentPane().add(scroller);
+
+        frame.pack();
+        frame.setVisible(true);
+    }
+}

test/javax/swing/JTextArea/4697612/bug4697612.txt

+                                   README
+
+                      Java(TM) 2 SDK, Standard Edition
+                             Version 1.4.2 Beta
+
+     For a more extensive HTML version of this file, see README.html.
+
+Contents
+
+   * Introduction
+   * Release Notes
+   * Bug Reports and Feedback
+   * Java 2 SDK Documentation
+   * Redistribution
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+
+
+Introduction
+
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+     building applications, applets, and components that can be
+     deployed on the Java platform.
+
+     The Java 2 SDK software includes tools useful for developing and
+     testing programs written in the Java programming language and
+     running on the Java platform. These tools are designed to be used
+     from the command line. Except for appletviewer, these tools do not
+     provide a graphical user interface.
+
+
+Release Notes
+
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+ 
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+
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+------------------------------------------------------------------------
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