jdk/test/java/nio/file/attribute/BasicFileAttributeView/CreationTime.java
changeset 17154 e8991539c4d7
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/test/java/nio/file/attribute/BasicFileAttributeView/CreationTime.java	Thu Apr 18 11:13:18 2013 +0100
@@ -0,0 +1,123 @@
+/*
+ * Copyright (c) 2013, 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
+ * @bug 8011536
+ * @summary Basic test for creationTime attribute on platforms/file systems
+ *     that support it.
+ * @library ../..
+ */
+
+import java.nio.file.Path;
+import java.nio.file.Files;
+import java.nio.file.attribute.*;
+import java.time.Instant;
+import java.io.IOException;
+
+public class CreationTime {
+
+    private static final java.io.PrintStream err = System.err;
+
+    /**
+     * Reads the creationTime attribute
+     */
+    private static FileTime creationTime(Path file) throws IOException {
+        return Files.readAttributes(file, BasicFileAttributes.class).creationTime();
+    }
+
+    /**
+     * Sets the creationTime attribute
+     */
+    private static void setCreationTime(Path file, FileTime time) throws IOException {
+        BasicFileAttributeView view =
+            Files.getFileAttributeView(file, BasicFileAttributeView.class);
+        view.setTimes(null, null, time);
+    }
+
+    static void test(Path top) throws IOException {
+        Path file = Files.createFile(top.resolve("foo"));
+
+        /**
+         * Check that creationTime reported
+         */
+        FileTime creationTime = creationTime(file);
+        Instant now = Instant.now();
+        if (Math.abs(creationTime.toMillis()-now.toEpochMilli()) > 10000L) {
+            err.println("File creation time reported as: " + creationTime);
+            throw new RuntimeException("Expected to be close to: " + now);
+        }
+
+        /**
+         * Is the creationTime attribute supported here?
+         */
+        boolean supportsCreationTimeRead = false;
+        boolean supportsCreationTimeWrite = false;
+        String os = System.getProperty("os.name");
+        if (os.contains("OS X") && Files.getFileStore(file).type().equals("hfs")) {
+            supportsCreationTimeRead = true;
+        } else if (os.startsWith("Windows")) {
+            String type = Files.getFileStore(file).type();
+            if (type.equals("NTFS") || type.equals("FAT")) {
+                supportsCreationTimeRead = true;
+                supportsCreationTimeWrite = true;
+            }
+        }
+
+        /**
+         * If the creation-time attribute is supported then change the file's
+         * last modified and check that it doesn't change the creation-time.
+         */
+        if (supportsCreationTimeRead) {
+            // change modified time by +1 hour
+            Instant plusHour = Instant.now().plusSeconds(60L * 60L);
+            Files.setLastModifiedTime(file, FileTime.from(plusHour));
+            FileTime current = creationTime(file);
+            if (!current.equals(creationTime))
+                throw new RuntimeException("Creation time should not have changed");
+        }
+
+        /**
+         * If the creation-time attribute is supported and can be changed then
+         * check that the change is effective.
+         */
+        if (supportsCreationTimeWrite) {
+            // change creation time by -1 hour
+            Instant minusHour = Instant.now().minusSeconds(60L * 60L);
+            creationTime = FileTime.from(minusHour);
+            setCreationTime(file, creationTime);
+            FileTime current = creationTime(file);
+            if (Math.abs(creationTime.toMillis()-current.toMillis()) > 1000L)
+                throw new RuntimeException("Creation time not changed");
+        }
+    }
+
+    public static void main(String[] args) throws IOException {
+        // create temporary directory to run tests
+        Path dir = TestUtil.createTemporaryDirectory();
+        try {
+            test(dir);
+        } finally {
+            TestUtil.removeAll(dir);
+        }
+    }
+}