8283245: Create a test for JDK-4670319

Backport-of: 4ce3cf12bff025441f658e1857e92486b5d73ee6

Author: GoeLin

test/jdk/javax/accessibility/4670319/AccessibleJTreePCESourceTest.java

@@ -0,0 +1,115 @@
+/*
+ * Copyright (c) 2008, 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 4670319
+ * @summary AccessibleJTree should fire a PropertyChangeEvent
+ * using a AccessibleJTreeNode as source.
+ * @run main AccessibleJTreePCESourceTest
+ */
+
+import java.awt.Robot;
+import java.beans.PropertyChangeEvent;
+import java.util.ArrayList;
+
+import javax.swing.JFrame;
+import javax.swing.JTree;
+import javax.swing.SwingUtilities;
+
+public class AccessibleJTreePCESourceTest {
+    private static JTree jTree;
+    private static JFrame jFrame;
+
+    private static ArrayList<PropertyChangeEvent> eventsList =
+        new ArrayList<PropertyChangeEvent>();
+
+    private static void doTest() throws Exception {
+        try {
+            SwingUtilities.invokeAndWait(() -> createGUI());
+            Robot robot = new Robot();
+            robot.waitForIdle();
+
+            expand(1);
+            robot.waitForIdle();
+            collapse(1);
+            robot.waitForIdle();
+            expand(2);
+            robot.waitForIdle();
+            collapse(2);
+            robot.waitForIdle();
+        } finally {
+            SwingUtilities.invokeAndWait(() -> jFrame.dispose());
+        }
+    }
+
+    public static void expand(int row) throws Exception {
+        SwingUtilities.invokeAndWait(() -> jTree.expandRow(row));
+    }
+
+    public static void collapse(int row) throws Exception {
+        SwingUtilities.invokeAndWait(() -> jTree.collapseRow(row));
+    }
+
+    private static void createGUI() {
+        jTree = new JTree();
+        jFrame = new JFrame();
+
+        jFrame.add(jTree);
+
+        jTree.getAccessibleContext().addPropertyChangeListener(event -> {
+            if (event.getNewValue() != null) {
+                eventsList.add(event);
+            }
+        });
+
+        jFrame.setSize(200, 200);
+        jFrame.getContentPane().add(jTree);
+        jFrame.setVisible(true);
+    }
+
+    public static void main(String args[]) throws Exception {
+        doTest();
+
+        for (int i = 0; i < eventsList.size(); i++) {
+            PropertyChangeEvent obj = eventsList.get(i);
+            String state = obj.getNewValue().toString();
+
+            if ((state.equals("expanded") || state.equals("collapsed"))
+                && (obj.getPropertyName().toString())
+                .equals("AccessibleState")) {
+                if (!(obj.getSource().getClass().getName()).equals(
+                    "javax.swing.JTree$AccessibleJTree$AccessibleJTreeNode")) {
+                    throw new RuntimeException("Test Failed: When tree node is "
+                        + state + ", PropertyChangeEventSource is "
+                        + obj.getSource().getClass().getName());
+                }
+            }
+        }
+        System.out.println(
+            "Test Passed: When tree node is expanded/collapsed, "
+            + "PropertyChangeEventSource is the Node");
+    }
+}
+