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/*
* Copyright (c) 2008, 2023, 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 4313887 6873621 6979526 7006126 7020517 8264400
* @summary Unit test for java.nio.file.FileStore
* @key intermittent
* @library .. /test/lib
* @build jdk.test.lib.Platform
* jdk.test.lib.util.FileUtils
* @run main Basic
*/
import java.nio.file.*;
import java.nio.file.attribute.*;
import java.io.File;
import java.io.IOException;
import jdk.test.lib.Platform;
import jdk.test.lib.util.FileUtils;
public class Basic {
static final long G = 1024L * 1024L * 1024L;
public static void main(String[] args) throws IOException {
Path dir = TestUtil.createTemporaryDirectory();
try {
doTests(dir);
} finally {
TestUtil.removeAll(dir);
}
}
static void assertTrue(boolean okay) {
if (!okay)
throw new RuntimeException("Assertion failed");
}
static void checkWithin1GB(String space, long expected, long actual) {
long diff = Math.abs(actual - expected);
if (diff > G) {
String msg = String.format("%s: |actual %d - expected %d| = %d (%f G)",
space, actual, expected, diff,
(float)diff/G);
throw new RuntimeException(msg);
}
}
static void doTests(Path dir) throws IOException {
/**
* Test: Directory should be on FileStore that is writable
*/
assertTrue(!Files.getFileStore(dir).isReadOnly());
/**
* Test: Two files should have the same FileStore
*/
Path file1 = Files.createFile(dir.resolve("foo"));
Path file2 = Files.createFile(dir.resolve("bar"));
FileStore store1 = Files.getFileStore(file1);
FileStore store2 = Files.getFileStore(file2);
assertTrue(store1.equals(store2));
assertTrue(store2.equals(store1));
assertTrue(store1.hashCode() == store2.hashCode());
if (Platform.isWindows()) {
/**
* Test: FileStore.equals() should not be case sensitive
*/
FileStore upper = Files.getFileStore(Path.of("C:\\"));
FileStore lower = Files.getFileStore(Path.of("c:\\"));
assertTrue(lower.equals(upper));
}
/**
* Test: File and FileStore attributes
*/
assertTrue(store1.supportsFileAttributeView("basic"));
assertTrue(store1.supportsFileAttributeView(BasicFileAttributeView.class));
assertTrue(store1.supportsFileAttributeView("posix") ==
store1.supportsFileAttributeView(PosixFileAttributeView.class));
assertTrue(store1.supportsFileAttributeView("dos") ==
store1.supportsFileAttributeView(DosFileAttributeView.class));
assertTrue(store1.supportsFileAttributeView("acl") ==
store1.supportsFileAttributeView(AclFileAttributeView.class));
assertTrue(store1.supportsFileAttributeView("user") ==
store1.supportsFileAttributeView(UserDefinedFileAttributeView.class));
/**
* Test: Space atributes
*/
File f = file1.toFile();
// check values are "close"
checkWithin1GB("total", f.getTotalSpace(), store1.getTotalSpace());
checkWithin1GB("free", f.getFreeSpace(), store1.getUnallocatedSpace());
checkWithin1GB("usable", f.getUsableSpace(), store1.getUsableSpace());
// get values by name
checkWithin1GB("total", f.getTotalSpace(),
(Long)store1.getAttribute("totalSpace"));
checkWithin1GB("free", f.getFreeSpace(),
(Long)store1.getAttribute("unallocatedSpace"));
checkWithin1GB("usable", f.getUsableSpace(),
(Long)store1.getAttribute("usableSpace"));
/**
* Test: Enumerate all FileStores
*/
if (FileUtils.areMountPointsAccessibleAndUnique()) {
FileStore prev = null;
for (FileStore store: FileSystems.getDefault().getFileStores()) {
System.out.format("%s (name=%s type=%s)\n", store, store.name(),
store.type());
// check space attributes are accessible
try {
store.getTotalSpace();
store.getUnallocatedSpace();
store.getUsableSpace();
} catch (NoSuchFileException nsfe) {
// ignore exception as the store could have been
// deleted since the iterator was instantiated
System.err.format("%s was not found\n", store);
} catch (AccessDeniedException ade) {
// ignore exception as the lack of ability to access the
// store due to lack of file permission or similar does not
// reflect whether the space attributes would be accessible
// were access to be permitted
System.err.format("%s is inaccessible\n", store);
} catch (FileSystemException fse) {
// On Linux, ignore the FSE if the path is one of the
// /run/user/$UID mounts created by pam_systemd(8) as it
// might be mounted as a fuse.portal filesystem and
// its access attempt might fail with EPERM
if (!Platform.isLinux() || store.toString().indexOf("/run/user") == -1) {
throw new RuntimeException(fse);
} else {
System.err.format("%s error: %s\n", store, fse);
}
}
// two distinct FileStores should not be equal
assertTrue(!store.equals(prev));
prev = store;
}
} else {
System.err.println
("Skipping FileStore check due to file system access failure");
}
}
}
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