| /* | |
| * Copyright (c) 2008, 2024, 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 6838333 8005566 8215467 8255576 8286160 | |
| * @summary Unit test for miscellaneous methods in java.nio.file.Files | |
| * @library .. /test/lib | |
| * @build jdk.test.lib.Platform | |
| * @run main Misc | |
| */ | |
| import java.io.IOException; | |
| import java.io.File; | |
| import java.nio.file.FileAlreadyExistsException; | |
| import java.nio.file.Files; | |
| import java.nio.file.Path; | |
| import java.nio.file.attribute.AclEntry; | |
| import java.nio.file.attribute.AclEntryPermission; | |
| import java.nio.file.attribute.AclEntryType; | |
| import java.nio.file.attribute.AclFileAttributeView; | |
| import java.nio.file.attribute.DosFileAttributeView; | |
| import java.nio.file.attribute.UserPrincipal; | |
| import java.util.List; | |
| import jdk.test.lib.Platform; | |
| import static java.nio.file.Files.*; | |
| import static java.nio.file.LinkOption.*; | |
| public class Misc { | |
| public static void main(String[] args) throws IOException { | |
| Path dir = TestUtil.createTemporaryDirectory(); | |
| try { | |
| testIsHidden(dir); | |
| testIsSameFile(dir); | |
| testFileTypeMethods(dir); | |
| testAccessMethods(dir); | |
| } finally { | |
| TestUtil.removeAll(dir); | |
| } | |
| } | |
| /** | |
| * Tests isHidden | |
| */ | |
| static void testIsHidden(Path tmpdir) throws IOException { | |
| // passing an empty path must not throw any runtime exception | |
| assertTrue(!isHidden(Path.of(""))); | |
| assertTrue(!isHidden(tmpdir)); | |
| Path file = tmpdir.resolve(".foo"); | |
| if (Platform.isWindows()) { | |
| createFile(file); | |
| try { | |
| setAttribute(file, "dos:hidden", true); | |
| try { | |
| assertTrue(isHidden(file)); | |
| } finally { | |
| setAttribute(file, "dos:hidden", false); | |
| } | |
| } finally { | |
| delete(file); | |
| } | |
| Path dir = tmpdir.resolve("hidden"); | |
| createDirectory(dir); | |
| try { | |
| setAttribute(dir, "dos:hidden", true); | |
| try { | |
| assertTrue(isHidden(dir)); | |
| } finally { | |
| setAttribute(dir, "dos:hidden", false); | |
| } | |
| } finally { | |
| delete(dir); | |
| } | |
| } else { | |
| assertTrue(isHidden(file)); | |
| } | |
| } | |
| /** | |
| * Tests isSameFile | |
| */ | |
| static void testIsSameFile(Path tmpdir) throws IOException { | |
| Path thisFile = tmpdir.resolve("thisFile"); | |
| Path thatFile = tmpdir.resolve("thatFile"); | |
| /** | |
| * Test: isSameFile for self | |
| */ | |
| assertTrue(isSameFile(thisFile, thisFile)); | |
| /** | |
| * Test: Neither files exist | |
| */ | |
| try { | |
| isSameFile(thisFile, thatFile); | |
| throw new RuntimeException("IOException not thrown"); | |
| } catch (IOException x) { | |
| } | |
| try { | |
| isSameFile(thatFile, thisFile); | |
| throw new RuntimeException("IOException not thrown"); | |
| } catch (IOException x) { | |
| } | |
| createFile(thisFile); | |
| try { | |
| /** | |
| * Test: One file exists | |
| */ | |
| try { | |
| isSameFile(thisFile, thatFile); | |
| throw new RuntimeException("IOException not thrown"); | |
| } catch (IOException x) { | |
| } | |
| try { | |
| isSameFile(thatFile, thisFile); | |
| throw new RuntimeException("IOException not thrown"); | |
| } catch (IOException x) { | |
| } | |
| /** | |
| * Test: Both file exists | |
| */ | |
| createFile(thatFile); | |
| try { | |
| assertTrue(!isSameFile(thisFile, thatFile)); | |
| assertTrue(!isSameFile(thatFile, thisFile)); | |
| } finally { | |
| delete(thatFile); | |
| } | |
| /** | |
| * Test: Symbolic links | |
| */ | |
| if (TestUtil.supportsSymbolicLinks(tmpdir)) { | |
| createSymbolicLink(thatFile, thisFile); | |
| try { | |
| assertTrue(isSameFile(thisFile, thatFile)); | |
| assertTrue(isSameFile(thatFile, thisFile)); | |
| } finally { | |
| TestUtil.deleteUnchecked(thatFile); | |
| } | |
| } | |
| } finally { | |
| delete(thisFile); | |
| } | |
| // nulls | |
| try { | |
| isSameFile(thisFile, null); | |
| throw new RuntimeException("NullPointerException expected"); | |
| } catch (NullPointerException ignore) { } | |
| try { | |
| isSameFile(null, thatFile); | |
| throw new RuntimeException("NullPointerException expected"); | |
| } catch (NullPointerException ignore) { } | |
| } | |
| /** | |
| * Exercise isRegularFile, isDirectory, isSymbolicLink | |
| */ | |
| static void testFileTypeMethods(Path tmpdir) throws IOException { | |
| assertTrue(!isRegularFile(tmpdir)); | |
| assertTrue(!isRegularFile(tmpdir, NOFOLLOW_LINKS)); | |
| assertTrue(isDirectory(tmpdir)); | |
| assertTrue(isDirectory(tmpdir, NOFOLLOW_LINKS)); | |
| assertTrue(!isSymbolicLink(tmpdir)); | |
| Path file = createFile(tmpdir.resolve("foo")); | |
| try { | |
| assertTrue(isRegularFile(file)); | |
| assertTrue(isRegularFile(file, NOFOLLOW_LINKS)); | |
| assertTrue(!isDirectory(file)); | |
| assertTrue(!isDirectory(file, NOFOLLOW_LINKS)); | |
| assertTrue(!isSymbolicLink(file)); | |
| if (TestUtil.supportsSymbolicLinks(tmpdir)) { | |
| Path link = tmpdir.resolve("link"); | |
| createSymbolicLink(link, tmpdir); | |
| try { | |
| assertTrue(!isRegularFile(link)); | |
| assertTrue(!isRegularFile(link, NOFOLLOW_LINKS)); | |
| assertTrue(isDirectory(link)); | |
| assertTrue(!isDirectory(link, NOFOLLOW_LINKS)); | |
| assertTrue(isSymbolicLink(link)); | |
| } finally { | |
| delete(link); | |
| } | |
| createSymbolicLink(link, file); | |
| try { | |
| assertTrue(isRegularFile(link)); | |
| assertTrue(!isRegularFile(link, NOFOLLOW_LINKS)); | |
| assertTrue(!isDirectory(link)); | |
| assertTrue(!isDirectory(link, NOFOLLOW_LINKS)); | |
| assertTrue(isSymbolicLink(link)); | |
| } finally { | |
| delete(link); | |
| } | |
| } | |
| if (TestUtil.supportsHardLinks(tmpdir)) { | |
| Path link = tmpdir.resolve("hardlink"); | |
| createLink(link, file); | |
| try { | |
| assertTrue(isRegularFile(link)); | |
| assertTrue(isRegularFile(link, NOFOLLOW_LINKS)); | |
| assertTrue(!isDirectory(link)); | |
| assertTrue(!isDirectory(link, NOFOLLOW_LINKS)); | |
| assertTrue(!isSymbolicLink(link)); | |
| } finally { | |
| delete(link); | |
| } | |
| } | |
| } finally { | |
| delete(file); | |
| } | |
| } | |
| /** | |
| * Exercise isReadbale, isWritable, isExecutable, exists, notExists | |
| */ | |
| static void testAccessMethods(Path tmpdir) throws IOException { | |
| // should return false when file does not exist | |
| Path doesNotExist = tmpdir.resolve("doesNotExist"); | |
| assertTrue(!isReadable(doesNotExist)); | |
| assertTrue(!isWritable(doesNotExist)); | |
| assertTrue(!isExecutable(doesNotExist)); | |
| assertTrue(!exists(doesNotExist)); | |
| assertTrue(notExists(doesNotExist)); | |
| Path file = createFile(tmpdir.resolve("foo")); | |
| try { | |
| // files exist | |
| assertTrue(isReadable(file)); | |
| assertTrue(isWritable(file)); | |
| assertTrue(exists(file)); | |
| assertTrue(!notExists(file)); | |
| assertTrue(isReadable(tmpdir)); | |
| assertTrue(isWritable(tmpdir)); | |
| assertTrue(exists(tmpdir)); | |
| assertTrue(!notExists(tmpdir)); | |
| if (Platform.isWindows()) { | |
| Path pageFile = Path.of("C:\\pagefile.sys"); | |
| if (pageFile.toFile().exists()) { | |
| System.out.printf("Check page file %s%n", pageFile); | |
| assertTrue(exists(pageFile)); | |
| } | |
| } | |
| // sym link exists | |
| if (TestUtil.supportsSymbolicLinks(tmpdir)) { | |
| Path link = tmpdir.resolve("link"); | |
| createSymbolicLink(link, file); | |
| try { | |
| assertTrue(isReadable(link)); | |
| assertTrue(isWritable(link)); | |
| assertTrue(exists(link)); | |
| assertTrue(!notExists(link)); | |
| } finally { | |
| delete(link); | |
| } | |
| createSymbolicLink(link, doesNotExist); | |
| try { | |
| assertTrue(!isReadable(link)); | |
| assertTrue(!isWritable(link)); | |
| assertTrue(!exists(link)); | |
| assertTrue(exists(link, NOFOLLOW_LINKS)); | |
| assertTrue(notExists(link)); | |
| assertTrue(!notExists(link, NOFOLLOW_LINKS)); | |
| } finally { | |
| delete(link); | |
| } | |
| } | |
| /** | |
| * Test: Edit ACL to deny WRITE and EXECUTE | |
| */ | |
| if (getFileStore(file).supportsFileAttributeView("acl")) { | |
| AclFileAttributeView view = | |
| getFileAttributeView(file, AclFileAttributeView.class); | |
| UserPrincipal owner = view.getOwner(); | |
| List<AclEntry> acl = view.getAcl(); | |
| // Insert entry to deny WRITE and EXECUTE | |
| AclEntry entry = AclEntry.newBuilder() | |
| .setType(AclEntryType.DENY) | |
| .setPrincipal(owner) | |
| .setPermissions(AclEntryPermission.WRITE_DATA, | |
| AclEntryPermission.EXECUTE) | |
| .build(); | |
| acl.add(0, entry); | |
| view.setAcl(acl); | |
| try { | |
| if (isRoot()) { | |
| // root has all permissions | |
| assertTrue(isWritable(file)); | |
| assertTrue(isExecutable(file)); | |
| } else { | |
| assertTrue(!isWritable(file)); | |
| assertTrue(!isExecutable(file)); | |
| } | |
| } finally { | |
| // Restore ACL | |
| acl.remove(0); | |
| view.setAcl(acl); | |
| } | |
| } | |
| /** | |
| * Test: Windows DOS read-only attribute | |
| */ | |
| if (Platform.isWindows()) { | |
| setAttribute(file, "dos:readonly", true); | |
| try { | |
| assertTrue(!isWritable(file)); | |
| } finally { | |
| setAttribute(file, "dos:readonly", false); | |
| } | |
| // Read-only attribute does not make direcory read-only | |
| DosFileAttributeView view = | |
| getFileAttributeView(tmpdir, DosFileAttributeView.class); | |
| boolean save = view.readAttributes().isReadOnly(); | |
| view.setReadOnly(true); | |
| try { | |
| assertTrue(isWritable(file)); | |
| } finally { | |
| view.setReadOnly(save); | |
| } | |
| } | |
| } finally { | |
| delete(file); | |
| } | |
| } | |
| static void assertTrue(boolean okay) { | |
| if (!okay) | |
| throw new RuntimeException("Assertion Failed"); | |
| } | |
| private static boolean isRoot() { | |
| if (Platform.isWindows()) | |
| return false; | |
| Path passwd = Path.of("/etc/passwd"); | |
| return Files.isWritable(passwd); | |
| } | |
| } |