8282933: Create a test for JDK-4529616

Backport-of: a0b984a778c1f9a89fd3e1e474b5a5165a0841b0

Author: GoeLin

test/jdk/javax/accessibility/4529616/AccessibleJTableCellTest.java

@@ -0,0 +1,92 @@
+/*
+ * 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 4529616
+ * @summary AccessibleJTableCell.isShowing() returns false
+ * when the cell is actually on the screen.
+ * @run main AccessibleJTableCellTest
+ */
+
+import java.awt.Robot;
+import java.util.concurrent.atomic.AtomicBoolean;
+
+import javax.swing.JFrame;
+import javax.swing.JTable;
+import javax.swing.SwingUtilities;
+
+public class AccessibleJTableCellTest {
+    private static JTable jTable;
+    private static JFrame jFrame;
+
+    private static Object[][] rowData = { { "01", "02", "03", "04", "05" },
+        { "11", "12", "13", "14", "15" }, { "21", "22", "23", "24", "25" },
+        { "31", "32", "33", "34", "35" }, { "41", "42", "43", "44", "45" } };
+
+    private static Object[] colNames = { "1", "2", "3", "4", "5" };
+
+    private static void doTest() throws Exception {
+        try {
+            SwingUtilities.invokeAndWait(() -> createGUI());
+
+            Robot robot = new Robot();
+            robot.setAutoDelay(500);
+            robot.waitForIdle();
+
+            for (int i = 0; i <= colNames.length - 1; i++) {
+                if (!isJTableCellShowing(i)) {
+                    throw new RuntimeException(
+                        "Assertion Failed: JTable accessible child " + i
+                        + " isShowing returns false");
+                }
+            }
+        } finally {
+            SwingUtilities.invokeAndWait(() -> jFrame.dispose());
+        }
+    }
+
+    private static boolean isJTableCellShowing(int i) throws Exception {
+        AtomicBoolean isShowing = new AtomicBoolean();
+        SwingUtilities.invokeAndWait(() -> isShowing
+            .set(jTable.getAccessibleContext().getAccessibleChild(i)
+                .getAccessibleContext().getAccessibleComponent().isShowing()));
+
+        return isShowing.get();
+    }
+
+    private static void createGUI() {
+        jTable = new JTable(rowData, colNames);
+        jFrame = new JFrame();
+        jFrame.setBounds(100, 100, 300, 300);
+        jFrame.getContentPane().add(jTable);
+        jFrame.setLocationRelativeTo(null);
+        jFrame.setVisible(true);
+    }
+
+    public static void main(String args[]) throws Exception {
+        doTest();
+        System.out.println("Test Passed");
+    }
+}