jdk/test/java/nio/file/attribute/BasicFileAttributeView/Basic.java
changeset 2057 3acf8e5e2ca0
child 3065 452aaa2899fc
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/test/java/nio/file/attribute/BasicFileAttributeView/Basic.java	Sun Feb 15 12:25:54 2009 +0000
@@ -0,0 +1,150 @@
+/*
+ * Copyright 2008-2009 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ */
+
+/* @test
+ * @bug 4313887
+ * @summary Unit test for java.nio.file.attribute.BasicFileAttributeView
+ * @library ../..
+ */
+
+import java.nio.file.*;
+import java.nio.file.attribute.*;
+import java.util.*;
+import java.util.concurrent.TimeUnit;
+import java.io.*;
+
+public class Basic {
+
+    static void check(boolean okay, String msg) {
+        if (!okay)
+            throw new RuntimeException(msg);
+    }
+
+    static void checkAttributesOfDirectory(Path dir)
+        throws IOException
+    {
+        BasicFileAttributes attrs = Attributes.readBasicFileAttributes(dir);
+        check(attrs.isDirectory(), "is a directory");
+        check(!attrs.isRegularFile(), "is not a regular file");
+        check(!attrs.isSymbolicLink(), "is not a link");
+        check(!attrs.isOther(), "is not other");
+        check(attrs.linkCount() >= 1, "should be at least 1");
+
+        // last-modified-time should match java.io.File
+        if (attrs.resolution() == TimeUnit.MILLISECONDS) {
+            File f = new File(dir.toString());
+            check(f.lastModified() == attrs.lastModifiedTime(),
+                "last-modified time should be the same");
+        }
+    }
+
+    static void checkAttributesOfFile(Path dir, Path file)
+        throws IOException
+    {
+        BasicFileAttributes attrs = Attributes.readBasicFileAttributes(file);
+        check(attrs.isRegularFile(), "is a regular file");
+        check(!attrs.isDirectory(), "is not a directory");
+        check(!attrs.isSymbolicLink(), "is not a link");
+        check(!attrs.isOther(), "is not other");
+        check(attrs.linkCount() >= 1, "should be at least 1");
+
+        // size and last-modified-time should match java.io.File
+        File f = new File(file.toString());
+        check(f.length() == attrs.size(), "size should be the same");
+        if (attrs.resolution() == TimeUnit.MILLISECONDS) {
+            check(f.lastModified() == attrs.lastModifiedTime(),
+                "last-modified time should be the same");
+        }
+
+        // copy last-modified time and file create time from directory to file,
+        // re-read attribtues, and check they match
+        BasicFileAttributeView view =
+            file.getFileAttributeView(BasicFileAttributeView.class);
+        BasicFileAttributes dirAttrs = Attributes.readBasicFileAttributes(dir);
+        view.setTimes(dirAttrs.lastModifiedTime(), null, null, dirAttrs.resolution());
+        if (dirAttrs.creationTime() != -1L) {
+            view.setTimes(null, null, dirAttrs.creationTime(), dirAttrs.resolution());
+        }
+        attrs = view.readAttributes();
+        check(attrs.lastModifiedTime() == dirAttrs.lastModifiedTime(),
+            "last-modified time should be equal");
+        if (dirAttrs.creationTime() != -1L) {
+            check(attrs.creationTime() == dirAttrs.creationTime(),
+                "create time should be the same");
+        }
+
+        // security tests
+        check (!(attrs instanceof PosixFileAttributes),
+            "should not be able to cast to PosixFileAttributes");
+    }
+
+    static void checkAttributesOfLink(Path link)
+        throws IOException
+    {
+        BasicFileAttributes attrs = Attributes
+            .readBasicFileAttributes(link, LinkOption.NOFOLLOW_LINKS);
+        check(attrs.isSymbolicLink(), "is a link");
+        check(!attrs.isDirectory(), "is a directory");
+        check(!attrs.isRegularFile(), "is not a regular file");
+        check(!attrs.isOther(), "is not other");
+        check(attrs.linkCount() >= 1, "should be at least 1");
+    }
+
+    static void attributeReadWriteTests(Path dir)
+        throws IOException
+    {
+        // create file
+        Path file = dir.resolve("foo");
+        OutputStream out = file.newOutputStream();
+        try {
+            out.write("this is not an empty file".getBytes("UTF-8"));
+        } finally {
+            out.close();
+        }
+
+        // check attributes of directory and file
+        checkAttributesOfDirectory(dir);
+        checkAttributesOfFile(dir, file);
+
+        // symbolic links may be supported
+        Path link = dir.resolve("link");
+        try {
+            link.createSymbolicLink( file );
+        } catch (UnsupportedOperationException x) {
+            return;
+        } catch (IOException x) {
+            return;
+        }
+        checkAttributesOfLink(link);
+    }
+
+    public static void main(String[] args) throws IOException {
+        // create temporary directory to run tests
+        Path dir = TestUtil.createTemporaryDirectory();
+        try {
+            attributeReadWriteTests(dir);
+        } finally {
+            TestUtil.removeAll(dir);
+        }
+    }
+}