8284294: Create an automated regression test for RFE 4138746

test/jdk/javax/swing/JLabel/4138746/JLabelMnemonicsTest.java

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+/*
+ * Copyright (c) 2001, 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.
+ */
+
+import java.awt.GridLayout;
+import java.awt.Robot;
+import java.awt.event.FocusAdapter;
+import java.awt.event.FocusEvent;
+import java.awt.event.KeyEvent;
+import java.util.Arrays;
+import java.util.List;
+import java.util.concurrent.CountDownLatch;
+import java.util.concurrent.TimeUnit;
+import java.util.concurrent.atomic.AtomicBoolean;
+import java.util.concurrent.atomic.AtomicInteger;
+import java.util.stream.Collectors;
+import javax.swing.AbstractButton;
+import javax.swing.JButton;
+import javax.swing.JFrame;
+import javax.swing.JLabel;
+import javax.swing.JPanel;
+import javax.swing.SwingUtilities;
+import javax.swing.UIManager;
+import javax.swing.UIManager.LookAndFeelInfo;
+import javax.swing.UnsupportedLookAndFeelException;
+
+import static javax.swing.UIManager.getInstalledLookAndFeels;
+
+/*
+ * @test
+ * @key headful
+ * @bug 4138746
+ * @summary This testcase tests RFE-4138746 request, verifies the case-sensitive
+ *          setting of Mnemonics to AbstractButton & JLabel.
+ * @run main JLabelMnemonicsTest
+ */
+public class JLabelMnemonicsTest {
+
+    private static JButton button1;
+    private static JButton button2;
+    private static JLabel label1;
+    private static JLabel label2;
+    private static JPanel panel;
+    private static Robot robot;
+    private static boolean result;
+    private static CountDownLatch focusGainedLatch;
+    private static JFrame frame;
+
+    public static void main(String[] args) throws Exception {
+        final boolean isMac =
+                System.getProperty("os.name").toLowerCase().contains("os x");
+
+        robot = new Robot();
+        robot.setAutoWaitForIdle(true);
+        robot.setAutoDelay(200);
+        List<String> lafs = Arrays.stream(getInstalledLookAndFeels())
+                                  .map(LookAndFeelInfo::getClassName)
+                                  .collect(Collectors.toList());
+        for (final String laf : lafs) {
+            try {
+                result = true;
+                focusGainedLatch = new CountDownLatch(1);
+                AtomicBoolean lafSetSuccess = new AtomicBoolean(false);
+                SwingUtilities.invokeAndWait(() -> {
+                    lafSetSuccess.set(setLookAndFeel(laf));
+                    if (lafSetSuccess.get()) {
+                        createUI();
+                    }
+                });
+                if (!lafSetSuccess.get()) {
+                    continue;
+                }
+                robot.waitForIdle();
+
+                // Verifier 1: Verifies if getDisplayedMnemonicIndex() returns the
+                // right index set with setDisplayedMnemonicIndex method for JButton
+                if (getDisplayedMnemonicIndex(button1) == 5 &&
+                    getDisplayedMnemonicIndex(button2) == 0) {
+                    System.out.println("Verifier 1 Passed");
+                } else {
+                    System.out.println(
+                            "Verifier 1 Failed, testing JButton failed");
+                    result = false;
+                }
+
+                // Verifier 2: Verifies that, on setting displayedMnemonicIndex to
+                // -1, the component can be still accessed with the mnemonic set
+                if (isMac) {
+                    hitKeys(KeyEvent.VK_ALT, KeyEvent.VK_CONTROL,
+                            KeyEvent.VK_V);
+                } else {
+                    hitKeys(KeyEvent.VK_ALT, KeyEvent.VK_V);
+                }
+                if (focusGainedLatch.await(3, TimeUnit.SECONDS)) {
+                    System.out.println("Verifier 2 Passed");
+                } else {
+                    System.out.println(
+                            "Verifier 2 Failed, Waited too long, but Button3 " +
+                            "has not yet gained focus in " + laf);
+                    result = false;
+                }
+
+                // Verifier 3: Testing JLabel: Verifies if
+                // getDisplayedMnemonicIndex() returns the right
+                // index set with setDisplayedMnemonicIndex method for JLabel
+                if (getDisplayedMnemonicIndex(label1) == 5 &&
+                    getDisplayedMnemonicIndex(label2) == 0) {
+                    System.out.println("Verifier 3 Passed");
+                } else {
+                    System.out.println("Verifier 3, testing JLabel Failed");
+                    result = false;
+                }
+
+                if (result) {
+                    System.out.println("Test Passed in " + laf);
+                } else {
+                    throw new RuntimeException(
+                            "Test Failed, as one or more verifiers failed in " +
+                            laf);
+                }
+            } finally {
+                SwingUtilities.invokeAndWait(JLabelMnemonicsTest::disposeFrame);
+            }
+        }
+    }
+
+    private static int getDisplayedMnemonicIndex(JLabel jLabel)
+            throws Exception {
+        final AtomicInteger index = new AtomicInteger();
+        SwingUtilities.invokeAndWait(
+                () -> index.set(jLabel.getDisplayedMnemonicIndex()));
+        return index.get();
+    }
+
+    private static int getDisplayedMnemonicIndex(AbstractButton button)
+            throws Exception {
+        final AtomicInteger index = new AtomicInteger();
+        SwingUtilities.invokeAndWait(
+                () -> index.set(button.getDisplayedMnemonicIndex()));
+        return index.get();
+    }
+
+    private static void hitKeys(int... keys) {
+        for (int key : keys) {
+            robot.keyPress(key);
+        }
+
+        for (int i = keys.length - 1; i >= 0; i--) {
+            robot.keyRelease(keys[i]);
+        }
+    }
+
+    private static void createUI() {
+        frame = new JFrame();
+        panel = new JPanel();
+        panel.setLayout(new GridLayout(2, 3));
+
+        button1 = new JButton("Save As");
+        button1.setMnemonic(KeyEvent.VK_A);
+        button1.setDisplayedMnemonicIndex(5);
+        panel.add(button1);
+
+        button2 = new JButton("save AS");
+        button2.setMnemonic(KeyEvent.VK_S);
+        panel.add(button2);
+
+        JButton button3 = new JButton("Save As");
+        button3.setMnemonic(KeyEvent.VK_V);
+        button3.setDisplayedMnemonicIndex(-1);
+        panel.add(button3);
+        button3.addFocusListener(new FocusAdapter() {
+            public void focusGained(FocusEvent fe) {
+                System.out.println("FocusGained on Button3");
+                focusGainedLatch.countDown();
+            }
+        });
+
+        label1 = new JLabel("Save As");
+        label1.setDisplayedMnemonic(KeyEvent.VK_A);
+        label1.setDisplayedMnemonicIndex(5);
+        panel.add(label1);
+
+        label2 = new JLabel("save AS");
+        label2.setDisplayedMnemonic(KeyEvent.VK_S);
+        panel.add(label2);
+
+        frame.add(panel);
+        frame.setLocationRelativeTo(null);
+        frame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
+        frame.pack();
+        frame.setVisible(true);
+    }
+
+    private static boolean setLookAndFeel(String lafName) {
+        try {
+            UIManager.setLookAndFeel(lafName);
+        } catch (UnsupportedLookAndFeelException ignored) {
+            System.out.println("Ignoring Unsupported L&F: " + lafName);
+            return false;
+        } catch (ClassNotFoundException | InstantiationException
+                | IllegalAccessException e) {
+            throw new RuntimeException(e);
+        }
+        return true;
+    }
+
+    private static void disposeFrame() {
+        if (frame != null) {
+            frame.dispose();
+            frame = null;
+        }
+    }
+
+}