8283621: Write a regression test for CCC4400728

Backport-of: 632825c6d2933c8f1e63569199413ecaa74b6740

Author: GoeLin

test/jdk/javax/swing/JFileChooser/4400728/JFileChooserDefaultDirectoryTest.java

@@ -0,0 +1,77 @@
+/*
+ * Copyright (c) 2004, 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.io.File;
+import java.util.concurrent.atomic.AtomicReference;
+import javax.swing.JFileChooser;
+import javax.swing.SwingUtilities;
+
+/*
+ * @test
+ * @bug 4400728
+ * @summary This testcase tests CCC4400728 request, checks whether JFileChooser
+ *          constructor set correct default directory or not, it is typically
+ *          the "Documents" folder on Windows, and the user's home directory
+ *          on Unix.
+ * @run main JFileChooserDefaultDirectoryTest
+ */
+public class JFileChooserDefaultDirectoryTest {
+
+    public static void main(String[] args) throws Exception {
+        final AtomicReference<String> actual = new AtomicReference<>("");
+        SwingUtilities.invokeAndWait(() -> {
+            JFileChooser jFileChooser = new JFileChooser();
+            actual.set(jFileChooser.getFileSystemView()
+                                   .getDefaultDirectory()
+                                   .getName());
+        });
+        String actualDefaultDirectory = actual.get();
+        final boolean isWindows = System.getProperty("os.name")
+                                        .startsWith("Windows");
+        if (isWindows) {
+            if (actualDefaultDirectory.equals("Documents")) {
+                System.out.println("Test Passed");
+            } else {
+                throw new RuntimeException(
+                        "Test Failed, JFileChooser constructor sets incorrect" +
+                        " default directory, actual = " +
+                        actualDefaultDirectory +
+                        " expected should be 'Documents'");
+            }
+        } else {
+            final String userHome = System.getProperty("user.home");
+            System.out.println("UserHome dir = " + userHome);
+            String expectedDefaultDirectory = new File(userHome).getName();
+            if (expectedDefaultDirectory.equals(actualDefaultDirectory)) {
+                System.out.println("Test Passed");
+            } else {
+                throw new RuntimeException(
+                        "Test Failed, JFileChooser constructor sets incorrect" +
+                        " default directory, actual = " +
+                        actualDefaultDirectory + " expected = " +
+                        expectedDefaultDirectory);
+            }
+        }
+    }
+
+}