7124320: [TEST_BUG] [macosx] JComboBox doesn't change selection on mouse over

Reviewed-by: alexsch, serb
Contributed-by: vera.akulova@oracle.com

test/javax/swing/JComboBox/6236162/bug6236162.java

+/*
+ * Copyright (c) 2013, 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 6236162
+   @summary Checks that there is no an inconsistence in combo box
+            behavior when user points an item in combo popup
+            by mouse and then uses UP/DOWN keys.
+   @library ../../regtesthelpers
+   @build Util
+   @author Mikhail Lapshin
+   @run main bug6236162
+*/
+
+import sun.awt.SunToolkit;
+
+import javax.swing.*;
+import javax.swing.plaf.basic.*;
+import javax.swing.plaf.metal.MetalComboBoxUI;
+import java.awt.*;
+import java.awt.event.KeyEvent;
+
+public class bug6236162 {
+    private static final SunToolkit toolkit = (SunToolkit) Toolkit.getDefaultToolkit();
+    private static JFrame frame;
+    private static JComboBox combo;
+    private static MyComboUI comboUI;
+
+    public static void main(String[] args) throws Exception {
+        UIManager.setLookAndFeel(UIManager.getCrossPlatformLookAndFeelClassName());
+        SwingUtilities.invokeAndWait(new Runnable() {
+            public void run() {
+                createAndShowGUI();
+            }
+        });
+        toolkit.realSync();
+        test();
+        System.out.println("Test passed");
+    }
+
+    private static void createAndShowGUI() {
+        frame = new JFrame("bug6236162");
+
+        combo = new JComboBox(new String[]{"one", "two", "three", "four", "five"});
+        combo.setEditable(true);
+        comboUI = new MyComboUI();
+        combo.setUI(comboUI);
+        combo.setSelectedIndex(3);
+        frame.getContentPane().add(combo);
+
+        frame.pack();
+        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+        frame.setLocationRelativeTo(null);
+        frame.setVisible(true);
+    }
+
+    private static void test() throws AWTException {
+        Robot robot = new Robot();
+        robot.setAutoDelay(50);
+
+        // Open popup menu
+        realSync();
+        Util.hitKeys(robot, KeyEvent.VK_DOWN);
+
+        // Move mouse to the first popup menu item
+        realSync();
+        Point p = combo.getLocationOnScreen();
+        Dimension size = combo.getSize();
+        p.x += size.width / 2;
+        p.y += size.height;
+        float dy = 1;
+        robot.mouseMove(p.x, p.y - 5);
+        for (int i=1; i <= 10; i++) {
+            robot.mouseMove((int)(p.x), (int)(p.y - 5 + dy*i));
+        }
+
+        // Select the second popup menu item
+        realSync();
+        Util.hitKeys(robot, KeyEvent.VK_DOWN);
+
+        realSync();
+        JList list = comboUI.getComboPopup().getList();
+        if (list.getSelectedIndex() != 1) {
+            throw new RuntimeException("There is an inconsistence in combo box " +
+                    "behavior when user points an item in combo popup " +
+                    "by mouse and then uses UP/DOWN keys.");
+        }
+    }
+
+    private static void realSync() {
+        ((SunToolkit)Toolkit.getDefaultToolkit()).realSync();
+    }
+
+    // Gives access to BasicComboBoxUI.popup field
+    private static class MyComboUI extends MetalComboBoxUI {
+        public ComboPopup getComboPopup() {
+            return popup;
+        }
+    }
+}