8286172: Create an automated test for JDK-4516019

Reviewed-by: prr, achung

test/jdk/javax/swing/JSpinner/JSpinnerFocusTest.java

@@ -0,0 +1,121 @@
+/*
+ * Copyright (c) 2002, 2022, 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
+ * @key headful
+ * @bug 4516019
+ * @summary Verify that clicking on the increment/decrement buttons
+ * of the spinner gives focus to the spinner.
+ * @run main JSpinnerFocusTest
+ */
+
+import java.awt.BorderLayout;
+import java.awt.Rectangle;
+import java.awt.Robot;
+import java.awt.event.InputEvent;
+
+import javax.swing.JButton;
+import javax.swing.JFrame;
+import javax.swing.JSpinner;
+import javax.swing.JSpinner.DefaultEditor;
+import javax.swing.SwingUtilities;
+
+public class JSpinnerFocusTest {
+
+    JFrame jFrame;
+    JButton jButton;
+    JSpinner jSpinner;
+    Robot robot;
+
+    volatile Rectangle bounds;
+    volatile boolean jTextFieldFocusStatus = false;
+
+    private void createGUI() {
+        jFrame = new JFrame();
+        jButton = new JButton();
+        jSpinner = new JSpinner();
+
+        jFrame.setLayout(new BorderLayout());
+        jFrame.add(jButton, BorderLayout.NORTH);
+        jFrame.add(jSpinner, BorderLayout.CENTER);
+        jFrame.setLocationRelativeTo(null);
+        jFrame.setSize(300, 300);
+        jFrame.setVisible(true);
+    }
+
+    public void doTest() throws Exception {
+        try {
+            robot = new Robot();
+            robot.setAutoDelay(400);
+
+            SwingUtilities.invokeAndWait(() -> createGUI());
+
+            robot.waitForIdle();
+            runTest();
+
+            robot.waitForIdle();
+            SwingUtilities.invokeAndWait(() -> {
+                jTextFieldFocusStatus = ((DefaultEditor) jSpinner.getEditor())
+                    .getTextField().isFocusOwner();
+            });
+            if (!jTextFieldFocusStatus) {
+                throw new RuntimeException(
+                    "Clicking on JSpinner buttons did not"
+                        + " shift focus to the JSpinner");
+            }
+        } finally {
+            SwingUtilities.invokeAndWait(() -> {
+                if (jFrame != null) {
+                    jFrame.dispose();
+                }
+            });
+        }
+    }
+
+    private void runTest() throws Exception {
+        SwingUtilities.invokeAndWait(() -> {
+            bounds = new Rectangle(jSpinner.getLocationOnScreen(),
+                jSpinner.getSize());
+        });
+
+        // Move cursor to place it in the spinner editor
+        robot.mouseMove(bounds.x + bounds.width / 2,
+            bounds.y + bounds.height / 2);
+
+        robot.mousePress(InputEvent.BUTTON1_DOWN_MASK);
+        robot.mouseRelease(InputEvent.BUTTON1_DOWN_MASK);
+
+        // Move cursor to click spinner up arrow button
+        robot.mouseMove(bounds.x + bounds.width - 2,
+            bounds.y + bounds.height / 4);
+
+        robot.mousePress(InputEvent.BUTTON1_DOWN_MASK);
+        robot.mouseRelease(InputEvent.BUTTON1_DOWN_MASK);
+    }
+
+    public static void main(String[] args) throws Exception {
+        new JSpinnerFocusTest().doTest();
+        System.out.println("Test Passed");
+    }
+}